var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var src_exports = {};
__export(src_exports, {
  ATN: () => ATN,
  ATNConfig: () => ATNConfig,
  ATNConfigSet: () => ATNConfigSet,
  ATNDeserializer: () => ATNDeserializer,
  ATNSerializer: () => ATNSerializer,
  ATNSimulator: () => ATNSimulator,
  ATNState: () => ATNState,
  AbstractParseTreeVisitor: () => AbstractParseTreeVisitor,
  AbstractPredicateTransition: () => AbstractPredicateTransition,
  ActionTransition: () => ActionTransition,
  ArrayPredictionContext: () => ArrayPredictionContext,
  AtomTransition: () => AtomTransition,
  BailErrorStrategy: () => BailErrorStrategy,
  BaseErrorListener: () => BaseErrorListener,
  BasicBlockStartState: () => BasicBlockStartState,
  BasicState: () => BasicState,
  BitSet: () => BitSet,
  BlockEndState: () => BlockEndState,
  BlockStartState: () => BlockStartState,
  BufferedTokenStream: () => BufferedTokenStream,
  CannotInvokeStartRuleError: () => CannotInvokeStartRuleError,
  CharStream: () => CharStream,
  CharStreamImpl: () => CharStreamImpl,
  Chunk: () => Chunk,
  CodePointTransitions: () => CodePointTransitions,
  CommonToken: () => CommonToken,
  CommonTokenFactory: () => CommonTokenFactory,
  CommonTokenStream: () => CommonTokenStream,
  ConsoleErrorListener: () => ConsoleErrorListener,
  DFA: () => DFA,
  DFASerializer: () => DFASerializer,
  DFAState: () => DFAState,
  DecisionInfo: () => DecisionInfo,
  DecisionState: () => DecisionState,
  DefaultErrorStrategy: () => DefaultErrorStrategy,
  DiagnosticErrorListener: () => DiagnosticErrorListener,
  DoubleDict: () => DoubleDict,
  EmptyPredictionContext: () => EmptyPredictionContext,
  EpsilonTransition: () => EpsilonTransition,
  ErrorNode: () => ErrorNode,
  FailedPredicateException: () => FailedPredicateException,
  HashMap: () => HashMap,
  HashSet: () => HashSet,
  InputMismatchException: () => InputMismatchException,
  IntStream: () => IntStream,
  InterpreterDataReader: () => InterpreterDataReader,
  InterpreterRuleContext: () => InterpreterRuleContext,
  Interval: () => Interval,
  IntervalSet: () => IntervalSet,
  LL1Analyzer: () => LL1Analyzer,
  Lexer: () => Lexer,
  LexerATNConfig: () => LexerATNConfig,
  LexerATNSimulator: () => LexerATNSimulator,
  LexerActionExecutor: () => LexerActionExecutor,
  LexerActionType: () => LexerActionType,
  LexerChannelAction: () => LexerChannelAction,
  LexerCustomAction: () => LexerCustomAction,
  LexerDFASerializer: () => LexerDFASerializer,
  LexerIndexedCustomAction: () => LexerIndexedCustomAction,
  LexerInterpreter: () => LexerInterpreter,
  LexerModeAction: () => LexerModeAction,
  LexerMoreAction: () => LexerMoreAction,
  LexerNoViableAltException: () => LexerNoViableAltException,
  LexerPopModeAction: () => LexerPopModeAction,
  LexerPushModeAction: () => LexerPushModeAction,
  LexerSkipAction: () => LexerSkipAction,
  LexerTypeAction: () => LexerTypeAction,
  ListTokenSource: () => ListTokenSource,
  LoopEndState: () => LoopEndState,
  MurmurHash: () => MurmurHash,
  NoViableAltException: () => NoViableAltException,
  NotSetTransition: () => NotSetTransition,
  OrderedATNConfigSet: () => OrderedATNConfigSet,
  OrderedHashMap: () => OrderedHashMap,
  OrderedHashSet: () => OrderedHashSet,
  ParseCancellationException: () => ParseCancellationException,
  ParseInfo: () => ParseInfo,
  ParseTreeMatch: () => ParseTreeMatch,
  ParseTreePattern: () => ParseTreePattern,
  ParseTreePatternMatcher: () => ParseTreePatternMatcher,
  ParseTreeWalker: () => ParseTreeWalker,
  Parser: () => Parser,
  ParserATNSimulator: () => ParserATNSimulator,
  ParserInterpreter: () => ParserInterpreter,
  ParserRuleContext: () => ParserRuleContext,
  PlusBlockStartState: () => PlusBlockStartState,
  PlusLoopbackState: () => PlusLoopbackState,
  PrecedencePredicateTransition: () => PrecedencePredicateTransition,
  PredPrediction: () => PredPrediction,
  PredicateTransition: () => PredicateTransition,
  PredictionContext: () => PredictionContext,
  PredictionContextCache: () => PredictionContextCache,
  PredictionMode: () => PredictionMode,
  ProfilingATNSimulator: () => ProfilingATNSimulator,
  ProxyErrorListener: () => ProxyErrorListener,
  RangeTransition: () => RangeTransition,
  RecognitionException: () => RecognitionException,
  Recognizer: () => Recognizer,
  RuleStartState: () => RuleStartState,
  RuleStopState: () => RuleStopState,
  RuleTagToken: () => RuleTagToken,
  RuleTransition: () => RuleTransition,
  RuntimeMetaData: () => RuntimeMetaData,
  SemanticContext: () => SemanticContext,
  SetTransition: () => SetTransition,
  SingletonPredictionContext: () => SingletonPredictionContext,
  StarBlockStartState: () => StarBlockStartState,
  StarLoopEntryState: () => StarLoopEntryState,
  StarLoopbackState: () => StarLoopbackState,
  StartRuleDoesNotConsumeFullPatternError: () => StartRuleDoesNotConsumeFullPatternError,
  TagChunk: () => TagChunk,
  TerminalNode: () => TerminalNode,
  TextChunk: () => TextChunk,
  Token: () => Token,
  TokenStreamRewriter: () => TokenStreamRewriter,
  TokenTagToken: () => TokenTagToken,
  TokensStartState: () => TokensStartState,
  TraceListener: () => TraceListener,
  Transition: () => Transition,
  Trees: () => Trees,
  UnbufferedTokenStream: () => UnbufferedTokenStream,
  Vocabulary: () => Vocabulary,
  WildcardTransition: () => WildcardTransition,
  XPath: () => XPath,
  XPathElement: () => XPathElement,
  XPathLexer: () => XPathLexer,
  XPathLexerErrorListener: () => XPathLexerErrorListener,
  XPathRuleAnywhereElement: () => XPathRuleAnywhereElement,
  XPathRuleElement: () => XPathRuleElement,
  XPathTokenAnywhereElement: () => XPathTokenAnywhereElement,
  XPathTokenElement: () => XPathTokenElement,
  XPathWildcardAnywhereElement: () => XPathWildcardAnywhereElement,
  XPathWildcardElement: () => XPathWildcardElement,
  arrayToString: () => arrayToString,
  combineCommonParents: () => combineCommonParents,
  equalArrays: () => equalArrays,
  equalNumberArrays: () => equalNumberArrays,
  escapeWhitespace: () => escapeWhitespace,
  getCachedPredictionContext: () => getCachedPredictionContext,
  isComparable: () => isComparable,
  isToken: () => isToken,
  isWritableToken: () => isWritableToken,
  merge: () => merge,
  mergeRoot: () => mergeRoot,
  mergeSingletons: () => mergeSingletons,
  predictionContextFromRuleContext: () => predictionContextFromRuleContext
});
module.exports = __toCommonJS(src_exports);

// src/IntStream.ts
var IntStream;
((IntStream2) => {
  IntStream2.EOF = -1;
  IntStream2.UNKNOWN_SOURCE_NAME = "<unknown>";
})(IntStream || (IntStream = {}));

// src/Token.ts
var Token;
((Token2) => {
  Token2.INVALID_TYPE = 0;
  Token2.EPSILON = -2;
  Token2.MIN_USER_TOKEN_TYPE = 1;
  Token2.EOF = IntStream.EOF;
  Token2.DEFAULT_CHANNEL = 0;
  Token2.HIDDEN_CHANNEL = 1;
  Token2.MIN_USER_CHANNEL_VALUE = 2;
})(Token || (Token = {}));
var isToken = /* @__PURE__ */ __name((candidate) => {
  const token = candidate;
  return token.tokenSource !== void 0 && token.channel !== void 0;
}, "isToken");

// src/misc/Interval.ts
var Interval = class _Interval {
  static {
    __name(this, "Interval");
  }
  static INVALID_INTERVAL = new _Interval(-1, -2);
  static INTERVAL_POOL_MAX_VALUE = 1e3;
  start;
  stop;
  static #cache = [];
  #cachedHashCode;
  constructor(start, stop) {
    this.start = start;
    this.stop = stop;
    this.#cachedHashCode = Math.imul(651 + start, 31) + stop;
  }
  /**
   * Creates a new interval from the given values.
   *
   * Interval objects are used readonly so share all with the
   * same single value a==b up to some max size. Use an array as a perfect hash.
   * Return shared object for 0..INTERVAL_POOL_MAX_VALUE or a new
   * Interval object with a..a in it.  On Java.g4, 218623 IntervalSets
   * have a..a (set with 1 element).
   *
   * @param a The start of the interval.
   * @param b The end of the interval (inclusive).
   *
   * @returns A cached or new interval.
   */
  static of(a, b) {
    if (a !== b || a < 0 || a > _Interval.INTERVAL_POOL_MAX_VALUE) {
      return new _Interval(a, b);
    }
    if (!_Interval.#cache[a]) {
      _Interval.#cache[a] = new _Interval(a, a);
    }
    return _Interval.#cache[a];
  }
  equals(o) {
    return this.start === o.start && this.stop === o.stop;
  }
  hashCode() {
    return this.#cachedHashCode;
  }
  /** Does this start completely before other? Disjoint */
  startsBeforeDisjoint(other) {
    return this.start < other.start && this.stop < other.start;
  }
  /** Does this start at or before other? Nondisjoint */
  startsBeforeNonDisjoint(other) {
    return this.start <= other.start && this.stop >= other.start;
  }
  /** Does this.start start after other.stop? May or may not be disjoint */
  startsAfter(other) {
    return this.start > other.start;
  }
  /** Does this start completely after other? Disjoint */
  startsAfterDisjoint(other) {
    return this.start > other.stop;
  }
  /** Does this start after other? NonDisjoint */
  startsAfterNonDisjoint(other) {
    return this.start > other.start && this.start <= other.stop;
  }
  /** Are both ranges disjoint? I.e., no overlap? */
  disjoint(other) {
    return this.startsBeforeDisjoint(other) || this.startsAfterDisjoint(other);
  }
  /** Are two intervals adjacent such as 0..41 and 42..42? */
  adjacent(other) {
    return this.start === other.stop + 1 || this.stop === other.start - 1;
  }
  properlyContains(other) {
    return other.start >= this.start && other.stop <= this.stop;
  }
  /** Return the interval computed from combining this and other */
  union(other) {
    return _Interval.of(Math.min(this.start, other.start), Math.max(this.stop, other.stop));
  }
  /** Return the interval in common between this and o */
  intersection(other) {
    return _Interval.of(Math.max(this.start, other.start), Math.min(this.stop, other.stop));
  }
  /**
   * Return the interval with elements from this not in other;
   *  other must not be totally enclosed (properly contained)
   *  within this, which would result in two disjoint intervals
   *  instead of the single one returned by this method.
   */
  differenceNotProperlyContained(other) {
    let diff = null;
    if (other.startsBeforeNonDisjoint(this)) {
      diff = _Interval.of(Math.max(this.start, other.stop + 1), this.stop);
    } else if (other.startsAfterNonDisjoint(this)) {
      diff = _Interval.of(this.start, other.start - 1);
    }
    return diff;
  }
  toString() {
    if (this.start === this.stop) {
      return this.start.toString();
    } else {
      return this.start.toString() + ".." + this.stop.toString();
    }
  }
  get length() {
    if (this.stop < this.start) {
      return 0;
    }
    return this.stop - this.start + 1;
  }
};

// src/Vocabulary.ts
var Vocabulary = class _Vocabulary {
  static {
    __name(this, "Vocabulary");
  }
  static EMPTY_NAMES = [];
  /**
   * Gets an empty {@link Vocabulary} instance.
   *
   *
   * No literal or symbol names are assigned to token types, so
   * {@link #getDisplayName(int)} returns the numeric value for all tokens
   * except {@link Token#EOF}.
   */
  static EMPTY_VOCABULARY = new _Vocabulary(_Vocabulary.EMPTY_NAMES, _Vocabulary.EMPTY_NAMES, _Vocabulary.EMPTY_NAMES);
  maxTokenType;
  literalNames;
  symbolicNames;
  displayNames;
  /**
   * Constructs a new instance of {@link Vocabulary} from the specified
   * literal, symbolic, and display token names.
   *
   * @param literalNames The literal names assigned to tokens, or `null`
   * if no literal names are assigned.
   * @param symbolicNames The symbolic names assigned to tokens, or
   * `null` if no symbolic names are assigned.
   * @param displayNames The display names assigned to tokens, or `null`
   * to use the values in `literalNames` and `symbolicNames` as
   * the source of display names, as described in
   * {@link #getDisplayName(int)}.
   */
  constructor(literalNames, symbolicNames, displayNames) {
    this.literalNames = literalNames ?? _Vocabulary.EMPTY_NAMES;
    this.symbolicNames = symbolicNames ?? _Vocabulary.EMPTY_NAMES;
    this.displayNames = displayNames ?? _Vocabulary.EMPTY_NAMES;
    this.maxTokenType = Math.max(this.displayNames.length, Math.max(
      this.literalNames.length,
      this.symbolicNames.length
    )) - 1;
  }
  /**
   * Returns a {@link Vocabulary} instance from the specified set of token
   * names. This method acts as a compatibility layer for the single
   * `tokenNames` array generated by previous releases of ANTLR.
   *
   * The resulting vocabulary instance returns `null` for
   * {@link getLiteralName getLiteralName(int)} and {@link getSymbolicName getSymbolicName(int)}, and the
   * value from `tokenNames` for the display names.
   *
   * @param tokenNames The token names, or `null` if no token names are
   * available.
   * @returns A {@link Vocabulary} instance which uses `tokenNames` for
   * the display names of tokens.
   */
  static fromTokenNames(tokenNames) {
    if (tokenNames == null || tokenNames.length === 0) {
      return _Vocabulary.EMPTY_VOCABULARY;
    }
    const literalNames = [...tokenNames];
    const symbolicNames = [...tokenNames];
    for (let i = 0; i < tokenNames.length; i++) {
      const tokenName = tokenNames[i];
      if (tokenName == null) {
        continue;
      }
      if (tokenName?.length > 0) {
        const firstChar = tokenName.charAt(0);
        if (firstChar === "'") {
          symbolicNames[i] = null;
          continue;
        } else if (firstChar.toUpperCase() === firstChar) {
          literalNames[i] = null;
          continue;
        }
      }
      literalNames[i] = null;
      symbolicNames[i] = null;
    }
    return new _Vocabulary(literalNames, symbolicNames, tokenNames);
  }
  getMaxTokenType() {
    return this.maxTokenType;
  }
  getLiteralName(tokenType) {
    if (tokenType >= 0 && tokenType < this.literalNames.length) {
      return this.literalNames[tokenType];
    }
    return null;
  }
  getSymbolicName(tokenType) {
    if (tokenType >= 0 && tokenType < this.symbolicNames.length) {
      return this.symbolicNames[tokenType];
    }
    if (tokenType === Token.EOF) {
      return "EOF";
    }
    return null;
  }
  getDisplayName(tokenType) {
    if (tokenType >= 0 && tokenType < this.displayNames.length) {
      const displayName = this.displayNames[tokenType];
      if (displayName != null) {
        return displayName;
      }
    }
    const literalName = this.getLiteralName(tokenType);
    if (literalName != null) {
      return literalName;
    }
    const symbolicName = this.getSymbolicName(tokenType);
    if (symbolicName != null) {
      return symbolicName;
    }
    return `${tokenType}`;
  }
  getLiteralNames() {
    return this.literalNames;
  }
  getSymbolicNames() {
    return this.symbolicNames;
  }
  getDisplayNames() {
    return this.displayNames;
  }
};

// src/utils/MurmurHash.ts
var c1 = 3432918353;
var c2 = 461845907;
var r1 = 15;
var r2 = 13;
var m = 5;
var n = 3864292196;
var MurmurHash = class _MurmurHash {
  static {
    __name(this, "MurmurHash");
  }
  static #defaultSeed = 701;
  constructor() {
  }
  /**
   * Initialize the hash using the specified {@code seed}.
   *
   * @param seed the seed
   *
   * @returns the intermediate hash value
   */
  static initialize(seed = _MurmurHash.#defaultSeed) {
    return seed;
  }
  static updateFromComparable(hash, value) {
    return this.update(hash, value?.hashCode() ?? 0);
  }
  /**
   * Update the intermediate hash value for the next input {@code value}.
   *
   * @param hash The intermediate hash value.
   * @param value the value to add to the current hash.
   *
   * @returns the updated intermediate hash value
   */
  static update(hash, value) {
    value = Math.imul(value, c1);
    value = value << r1 | value >>> 32 - r1;
    value = Math.imul(value, c2);
    hash = hash ^ value;
    hash = hash << r2 | hash >>> 32 - r2;
    hash = Math.imul(hash, m) + n;
    return hash;
  }
  /**
   * Apply the final computation steps to the intermediate value {@code hash}
   * to form the final result of the MurmurHash 3 hash function.
   *
   * @param hash The intermediate hash value.
   * @param entryCount The number of values added to the hash.
   *
   * @returns the final hash result
   */
  static finish(hash, entryCount) {
    hash ^= entryCount * 4;
    hash ^= hash >>> 16;
    hash = Math.imul(hash, 2246822507);
    hash ^= hash >>> 13;
    hash = Math.imul(hash, 3266489909);
    hash ^= hash >>> 16;
    return hash;
  }
  /**
   * An all-in-one convenience method to compute a hash for a single value.
   *
   * @param value The value to hash.
   * @param seed The seed for the hash value.
   *
   * @returns The computed hash.
   */
  static hashCode(value, seed) {
    return _MurmurHash.finish(_MurmurHash.update(seed ?? _MurmurHash.#defaultSeed, value), 1);
  }
};

// src/misc/IntervalSet.ts
var IntervalSet = class _IntervalSet {
  static {
    __name(this, "IntervalSet");
  }
  /** The list of sorted, disjoint intervals. */
  #intervals = [];
  #cachedHashCode;
  constructor(set) {
    if (set) {
      this.addSet(set);
    }
  }
  /** Create a set with all ints within range [a..b] (inclusive) */
  static of(a, b) {
    const s = new _IntervalSet();
    s.addRange(a, b);
    return s;
  }
  /** Combine all sets in the array and return the union of them */
  static or(sets) {
    const result = new _IntervalSet();
    for (const set of sets) {
      result.addSet(set);
    }
    return result;
  }
  [Symbol.iterator]() {
    return this.#intervals[Symbol.iterator]();
  }
  get(index) {
    return this.#intervals[index];
  }
  /**
   * Returns the minimum value contained in the set if not isNil().
   *
   * @returns the minimum value contained in the set.
   */
  get minElement() {
    if (this.#intervals.length === 0) {
      return Token.INVALID_TYPE;
    }
    return this.#intervals[0].start;
  }
  /**
   * Returns the maximum value contained in the set if not isNil().
   *
   * @returns the maximum value contained in the set.
   */
  get maxElement() {
    if (this.#intervals.length === 0) {
      return Token.INVALID_TYPE;
    }
    return this.#intervals[this.#intervals.length - 1].stop;
  }
  clear() {
    this.#cachedHashCode = void 0;
    this.#intervals = [];
  }
  /**
   * Add a single element to the set.  An isolated element is stored
   *  as a range el..el.
   */
  addOne(v) {
    this.addInterval(new Interval(v, v));
  }
  /**
   * Add interval; i.e., add all integers from a to b to set.
   *  If b < a, do nothing.
   *  Keep list in sorted order (by left range value).
   *  If overlap, combine ranges. For example,
   *  If this is {1..5, 10..20}, adding 6..7 yields
   *  {1..5, 6..7, 10..20}. Adding 4..8 yields {1..8, 10..20}.
   */
  addRange(l, h) {
    this.addInterval(new Interval(l, h));
  }
  addInterval(addition) {
    this.#cachedHashCode = void 0;
    if (this.#intervals.length === 0) {
      this.#intervals.push(addition);
    } else {
      for (let pos = 0; pos < this.#intervals.length; pos++) {
        const existing = this.#intervals[pos];
        if (addition.equals(existing)) {
          return;
        }
        if (addition.adjacent(existing) || !addition.disjoint(existing)) {
          const bigger = addition.union(existing);
          this.#intervals[pos] = bigger;
          for (let sub = pos + 1; sub < this.#intervals.length; ) {
            const next = this.#intervals[sub];
            if (!bigger.adjacent(next) && bigger.disjoint(next)) {
              break;
            }
            this.#intervals.splice(sub, 1);
            this.#intervals[pos] = bigger.union(next);
          }
          return;
        }
        if (addition.startsBeforeDisjoint(existing)) {
          this.#intervals.splice(pos, 0, addition);
          return;
        }
      }
      this.#intervals.push(addition);
    }
  }
  addSet(other) {
    other.#intervals.forEach((toAdd) => {
      return this.addInterval(toAdd);
    }, this);
    return this;
  }
  complementWithVocabulary(vocabulary) {
    const result = new _IntervalSet();
    if (!vocabulary) {
      return result;
    }
    if (vocabulary.length === 0) {
      return result;
    }
    result.addSet(vocabulary);
    return result.subtract(this);
  }
  complement(minElement, maxElement) {
    const result = new _IntervalSet();
    result.addInterval(new Interval(minElement, maxElement));
    return result.subtract(this);
  }
  /** combine all sets in the array returned the or'd value */
  or(sets) {
    const result = new _IntervalSet();
    result.addSet(this);
    sets.forEach((set) => {
      return result.addSet(set);
    });
    return result;
  }
  and(other) {
    if (other.length === 0) {
      return new _IntervalSet();
    }
    const myIntervals = this.#intervals;
    const theirIntervals = other.#intervals;
    let intersection;
    const mySize = myIntervals.length;
    const theirSize = theirIntervals.length;
    let i = 0;
    let j = 0;
    while (i < mySize && j < theirSize) {
      const mine = myIntervals[i];
      const theirs = theirIntervals[j];
      if (mine.startsBeforeDisjoint(theirs)) {
        i++;
      } else if (theirs.startsBeforeDisjoint(mine)) {
        j++;
      } else if (mine.properlyContains(theirs)) {
        if (!intersection) {
          intersection = new _IntervalSet();
        }
        intersection.addInterval(mine.intersection(theirs));
        j++;
      } else if (theirs.properlyContains(mine)) {
        if (!intersection) {
          intersection = new _IntervalSet();
        }
        intersection.addInterval(mine.intersection(theirs));
        i++;
      } else if (!mine.disjoint(theirs)) {
        if (!intersection) {
          intersection = new _IntervalSet();
        }
        intersection.addInterval(mine.intersection(theirs));
        if (mine.startsAfterNonDisjoint(theirs)) {
          j++;
        } else if (theirs.startsAfterNonDisjoint(mine)) {
          i++;
        }
      }
    }
    if (!intersection) {
      return new _IntervalSet();
    }
    return intersection;
  }
  /**
   * Compute the set difference between two interval sets. The specific
   * operation is `left - right`. If either of the input sets is
   * `null`, it is treated as though it was an empty set.
   */
  subtract(other) {
    if (this.length === 0) {
      return new _IntervalSet();
    }
    const result = new _IntervalSet(this);
    if (other.length === 0) {
      return result;
    }
    let resultI = 0;
    let rightI = 0;
    while (resultI < result.#intervals.length && rightI < other.#intervals.length) {
      const resultInterval = result.#intervals[resultI];
      const rightInterval = other.#intervals[rightI];
      if (rightInterval.stop < resultInterval.start) {
        rightI++;
        continue;
      }
      if (rightInterval.start > resultInterval.stop) {
        resultI++;
        continue;
      }
      let beforeCurrent;
      let afterCurrent;
      if (rightInterval.start > resultInterval.start) {
        beforeCurrent = new Interval(resultInterval.start, rightInterval.start - 1);
      }
      if (rightInterval.stop < resultInterval.stop) {
        afterCurrent = new Interval(rightInterval.stop + 1, resultInterval.stop);
      }
      if (beforeCurrent) {
        if (afterCurrent) {
          result.#intervals[resultI] = beforeCurrent;
          result.#intervals.splice(resultI + 1, 0, afterCurrent);
          resultI++;
          rightI++;
        } else {
          result.#intervals[resultI] = beforeCurrent;
          resultI++;
        }
      } else {
        if (afterCurrent) {
          result.#intervals[resultI] = afterCurrent;
          rightI++;
        } else {
          result.#intervals.splice(resultI, 1);
        }
      }
    }
    return result;
  }
  contains(el) {
    const n2 = this.#intervals.length;
    let l = 0;
    let r = n2 - 1;
    while (l <= r) {
      const m2 = Math.floor((l + r) / 2);
      const interval = this.#intervals[m2];
      if (interval.stop < el) {
        l = m2 + 1;
      } else if (interval.start > el) {
        r = m2 - 1;
      } else {
        return true;
      }
    }
    return false;
  }
  removeRange(toRemove) {
    this.#cachedHashCode = void 0;
    if (toRemove.start === toRemove.stop) {
      this.removeOne(toRemove.start);
    } else if (this.#intervals !== null) {
      let pos = 0;
      for (const existing of this.#intervals) {
        if (toRemove.stop <= existing.start) {
          return;
        } else if (toRemove.start > existing.start && toRemove.stop < existing.stop) {
          this.#intervals[pos] = new Interval(existing.start, toRemove.start);
          const x = new Interval(toRemove.stop, existing.stop);
          this.#intervals.splice(pos, 0, x);
          return;
        } else if (toRemove.start <= existing.start && toRemove.stop >= existing.stop) {
          this.#intervals.splice(pos, 1);
          pos = pos - 1;
        } else if (toRemove.start < existing.stop) {
          this.#intervals[pos] = new Interval(existing.start, toRemove.start);
        } else if (toRemove.stop < existing.stop) {
          this.#intervals[pos] = new Interval(toRemove.stop, existing.stop);
        }
        pos += 1;
      }
    }
  }
  removeOne(value) {
    this.#cachedHashCode = void 0;
    for (let i = 0; i < this.#intervals.length; i++) {
      const existing = this.#intervals[i];
      if (value < existing.start) {
        return;
      } else if (value === existing.start && value === existing.stop) {
        this.#intervals.splice(i, 1);
        return;
      } else if (value === existing.start) {
        this.#intervals[i] = new Interval(existing.start + 1, existing.stop);
        return;
      } else if (value === existing.stop) {
        this.#intervals[i] = new Interval(existing.start, existing.stop);
        return;
      } else if (value < existing.stop) {
        const replace = new Interval(existing.start, value);
        this.#intervals[i] = new Interval(value + 1, existing.stop);
        this.#intervals.splice(i, 0, replace);
        return;
      }
    }
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      for (const interval of this.#intervals) {
        hash = MurmurHash.update(hash, interval.start);
        hash = MurmurHash.update(hash, interval.stop);
      }
      this.#cachedHashCode = MurmurHash.finish(hash, this.#intervals.length * 2);
    }
    return this.#cachedHashCode;
  }
  /**
   * Are two IntervalSets equal? Because all intervals are sorted and disjoint, equals is a simple linear walk over
   * both lists to make sure they are the same. Interval.equals() is used by the List.equals() method to check
   * the ranges.
   */
  equals(other) {
    if (this === other) {
      return true;
    }
    if (this.#intervals.length !== other.#intervals.length) {
      return false;
    }
    for (let i = 0; i < this.#intervals.length; i++) {
      if (!this.#intervals[i].equals(other.#intervals[i])) {
        return false;
      }
    }
    return true;
  }
  toString(elementsAreChar) {
    if (this.#intervals.length === 0) {
      return "{}";
    }
    let result = "";
    if (this.length > 1) {
      result += "{";
    }
    for (let i = 0; i < this.#intervals.length; ++i) {
      const interval = this.#intervals[i];
      const start = interval.start;
      const stop = interval.stop;
      if (start === stop) {
        if (start === Token.EOF) {
          result += "<EOF>";
        } else if (elementsAreChar) {
          result += "'" + String.fromCodePoint(start) + "'";
        } else {
          result += start;
        }
      } else {
        if (elementsAreChar) {
          result += "'" + String.fromCodePoint(start) + "'..'" + String.fromCodePoint(stop) + "'";
        } else {
          result += start + ".." + stop;
        }
      }
      if (i < this.#intervals.length - 1) {
        result += ", ";
      }
    }
    if (this.length > 1) {
      result += "}";
    }
    return result;
  }
  toStringWithVocabulary(vocabulary) {
    if (this.#intervals.length === 0) {
      return "{}";
    }
    let result = "";
    if (this.length > 1) {
      result += "{";
    }
    for (let i = 0; i < this.#intervals.length; ++i) {
      const interval = this.#intervals[i];
      const start = interval.start;
      const stop = interval.stop;
      if (start === stop) {
        if (start === Token.EOF) {
          result += "<EOF>";
        } else {
          result += this.elementName(vocabulary, start);
        }
      } else {
        for (let i2 = start; i2 <= stop; ++i2) {
          if (i2 > start) {
            result += ", ";
          }
          result += this.elementName(vocabulary, i2);
        }
      }
      if (i < this.#intervals.length - 1) {
        result += ", ";
      }
    }
    if (this.length > 1) {
      result += "}";
    }
    return result;
  }
  toStringWithRuleNames(ruleNames) {
    if (this.#intervals.length === 0) {
      return "{}";
    }
    let result = "";
    if (this.length > 1) {
      result += "{";
    }
    const vocabulary = Vocabulary.fromTokenNames(ruleNames);
    for (let i = 0; i < this.#intervals.length; ++i) {
      const interval = this.#intervals[i];
      const start = interval.start;
      const stop = interval.stop;
      if (start === stop) {
        if (start === Token.EOF) {
          result += "<EOF>";
        } else {
          result += this.elementName(vocabulary, start);
        }
      } else {
        for (let i2 = start; i2 <= stop; ++i2) {
          if (i2 > start) {
            result += ", ";
          }
          result += this.elementName(vocabulary, i2);
        }
      }
      if (i < this.#intervals.length - 1) {
        result += ", ";
      }
    }
    if (this.length > 1) {
      result += "}";
    }
    return result;
  }
  toArray() {
    const data = [];
    for (const interval of this.#intervals) {
      for (let j = interval.start; j <= interval.stop; j++) {
        data.push(j);
      }
    }
    return data;
  }
  /** @returns the number of elements in this set. */
  get length() {
    let result = 0;
    for (const interval of this.#intervals) {
      result += interval.length;
    }
    return result;
  }
  elementName(vocabulary, token) {
    if (token === Token.EOF) {
      return "<EOF>";
    }
    if (token === Token.EPSILON) {
      return "<EPSILON>";
    }
    return vocabulary.getDisplayName(token);
  }
};

// src/atn/Transition.ts
var Transition = class {
  static {
    __name(this, "Transition");
  }
  static INVALID = 0;
  static EPSILON = 1;
  static RANGE = 2;
  static RULE = 3;
  static PREDICATE = 4;
  // e.g., {isType(input.LT(1))}
  static ATOM = 5;
  static ACTION = 6;
  static SET = 7;
  // ~(A|B) or ~atom, wildcard, which convert to next
  static NOT_SET = 8;
  static WILDCARD = 9;
  static PRECEDENCE = 10;
  /** The target of this transition. */
  target;
  constructor(target) {
    this.target = target;
  }
  /**
   * Determines if the transition is an "epsilon" transition.
   *
   * The default implementation returns `false`.
   *
   * @returns `true` if traversing this transition in the ATN does not
   * consume an input symbol; otherwise, `false` if traversing this
   * transition consumes (matches) an input symbol.
   */
  get isEpsilon() {
    return false;
  }
  get label() {
    return null;
  }
};

// src/atn/SetTransition.ts
var SetTransition = class extends Transition {
  static {
    __name(this, "SetTransition");
  }
  set;
  constructor(target, set) {
    super(target);
    if (set) {
      this.set = set;
    } else {
      this.set = IntervalSet.of(Token.INVALID_TYPE, Token.INVALID_TYPE);
    }
  }
  get transitionType() {
    return Transition.SET;
  }
  get label() {
    return this.set;
  }
  matches(symbol, _minVocabSymbol, _maxVocabSymbol) {
    return this.set.contains(symbol);
  }
  toString() {
    return this.set.toString();
  }
};

// src/atn/NotSetTransition.ts
var NotSetTransition = class extends SetTransition {
  static {
    __name(this, "NotSetTransition");
  }
  get transitionType() {
    return Transition.NOT_SET;
  }
  matches(symbol, minVocabSymbol, maxVocabSymbol) {
    return symbol >= minVocabSymbol && symbol <= maxVocabSymbol && !super.matches(symbol, minVocabSymbol, maxVocabSymbol);
  }
  toString() {
    return "~" + super.toString();
  }
};

// src/atn/PredictionContext.ts
var PredictionContext = class _PredictionContext {
  static {
    __name(this, "PredictionContext");
  }
  /**
   * Represents `$` in an array in full context mode, when `$`
   * doesn't mean wildcard: `$ + x = [$,x]`. Here,
   * `$` = {@link EMPTY_RETURN_STATE}.
   */
  static EMPTY_RETURN_STATE = 2147483647;
  // TODO: Temporarily here. Should be moved to EmptyPredictionContext. It's initialized in that context class.
  static EMPTY;
  static traceATNSimulator = false;
  #cachedHashCode;
  constructor(cachedHashCode) {
    this.#cachedHashCode = cachedHashCode;
  }
  static calculateEmptyHashCode() {
    let hash = MurmurHash.initialize(31);
    hash = MurmurHash.finish(hash, 0);
    return hash;
  }
  static calculateHashCodeSingle(parent, returnState) {
    let hash = MurmurHash.initialize(31);
    hash = MurmurHash.updateFromComparable(hash, parent);
    hash = MurmurHash.update(hash, returnState);
    hash = MurmurHash.finish(hash, 2);
    return hash;
  }
  static calculateHashCodeList(parents, returnStates) {
    let hash = MurmurHash.initialize(31);
    for (const parent of parents) {
      hash = MurmurHash.updateFromComparable(hash, parent);
    }
    for (const returnState of returnStates) {
      hash = MurmurHash.update(hash, returnState);
    }
    hash = MurmurHash.finish(hash, 2 * parents.length);
    return hash;
  }
  isEmpty() {
    return false;
  }
  hasEmptyPath() {
    return this.getReturnState(this.length - 1) === _PredictionContext.EMPTY_RETURN_STATE;
  }
  hashCode() {
    return this.#cachedHashCode;
  }
  toString(_recog) {
    return "";
  }
};

// src/utils/helpers.ts
var isComparable = /* @__PURE__ */ __name((candidate) => {
  return typeof candidate.equals === "function";
}, "isComparable");
var valueToString = /* @__PURE__ */ __name((v) => {
  return v === null ? "null" : v;
}, "valueToString");
var arrayToString = /* @__PURE__ */ __name((value) => {
  return Array.isArray(value) ? "[" + value.map(valueToString).join(", ") + "]" : "null";
}, "arrayToString");
var equalArrays = /* @__PURE__ */ __name((a, b) => {
  if (a === b) {
    return true;
  }
  if (a.length !== b.length) {
    return false;
  }
  for (let i = 0; i < a.length; i++) {
    const left = a[i];
    const right = b[i];
    if (left === right) {
      continue;
    }
    if (!left || !left.equals(right)) {
      return false;
    }
  }
  return true;
}, "equalArrays");
var equalNumberArrays = /* @__PURE__ */ __name((a, b) => {
  if (a === b) {
    return true;
  }
  if (a.length !== b.length) {
    return false;
  }
  for (let i = 0; i < a.length; i++) {
    if (a[i] !== b[i]) {
      return false;
    }
  }
  return true;
}, "equalNumberArrays");
var escapeWhitespace = /* @__PURE__ */ __name((s, escapeSpaces = false) => {
  s = s.replace(/\t/g, "\\t").replace(/\n/g, "\\n").replace(/\r/g, "\\r");
  if (escapeSpaces) {
    s = s.replace(/ /g, "\xB7");
  }
  return s;
}, "escapeWhitespace");

// src/atn/ArrayPredictionContext.ts
var ArrayPredictionContext = class _ArrayPredictionContext extends PredictionContext {
  static {
    __name(this, "ArrayPredictionContext");
  }
  parents = [];
  returnStates = [];
  constructor(parents, returnStates) {
    super(PredictionContext.calculateHashCodeList(parents, returnStates));
    this.parents = parents;
    this.returnStates = returnStates;
    return this;
  }
  isEmpty() {
    return this.returnStates[0] === PredictionContext.EMPTY_RETURN_STATE;
  }
  get length() {
    return this.returnStates.length;
  }
  getParent(index) {
    return this.parents[index];
  }
  getReturnState(index) {
    return this.returnStates[index];
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _ArrayPredictionContext) || this.hashCode() !== other.hashCode()) {
      return false;
    }
    return equalNumberArrays(this.returnStates, other.returnStates) && equalArrays(this.parents, other.parents);
  }
  toString() {
    if (this.isEmpty()) {
      return "[]";
    }
    const entries = [];
    for (let i = 0; i < this.returnStates.length; i++) {
      if (this.returnStates[i] === PredictionContext.EMPTY_RETURN_STATE) {
        entries.push("$");
        continue;
      }
      entries.push(this.returnStates[i].toString());
      if (this.parents[i]) {
        entries.push(this.parents[i].toString());
      } else {
        entries.push("null");
      }
    }
    return `[${entries.join(", ")}]`;
  }
};

// src/atn/SingletonPredictionContext.ts
var SingletonPredictionContext = class _SingletonPredictionContext extends PredictionContext {
  static {
    __name(this, "SingletonPredictionContext");
  }
  parent;
  returnState;
  constructor(parent, returnState) {
    super(
      parent ? PredictionContext.calculateHashCodeSingle(parent, returnState) : PredictionContext.calculateEmptyHashCode()
    );
    this.parent = parent ?? null;
    this.returnState = returnState;
  }
  static create(parent, returnState) {
    if (returnState === PredictionContext.EMPTY_RETURN_STATE && parent === null) {
      return PredictionContext.EMPTY;
    } else {
      return new _SingletonPredictionContext(parent, returnState);
    }
  }
  getParent(_index) {
    return this.parent;
  }
  getReturnState(_index) {
    return this.returnState;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _SingletonPredictionContext)) {
      return false;
    }
    if (this.hashCode() !== other.hashCode()) {
      return false;
    }
    if (this.returnState !== other.returnState) {
      return false;
    }
    if (this.parent == null) {
      return other.parent == null;
    }
    return this.parent.equals(other.parent);
  }
  toString() {
    const up = this.parent === null ? "" : this.parent.toString();
    if (up.length === 0) {
      if (this.returnState === PredictionContext.EMPTY_RETURN_STATE) {
        return "$";
      }
      return "" + this.returnState;
    } else {
      return "" + this.returnState + " " + up;
    }
  }
  get length() {
    return 1;
  }
};

// src/atn/EmptyPredictionContext.ts
var EmptyPredictionContext = class _EmptyPredictionContext extends SingletonPredictionContext {
  static {
    __name(this, "EmptyPredictionContext");
  }
  /**
   * Represents `$` in local context prediction, which means wildcard.
   * `*+x = *`.
   */
  static instance = new _EmptyPredictionContext();
  constructor() {
    super(void 0, PredictionContext.EMPTY_RETURN_STATE);
  }
  isEmpty() {
    return true;
  }
  getParent() {
    return null;
  }
  getReturnState() {
    return this.returnState;
  }
  equals(other) {
    return this === other;
  }
  toString() {
    return "$";
  }
  static {
    PredictionContext.EMPTY = new _EmptyPredictionContext();
  }
};

// src/tree/TerminalNode.ts
var TerminalNode = class {
  static {
    __name(this, "TerminalNode");
  }
  parent = null;
  symbol;
  constructor(symbol) {
    this.symbol = symbol;
  }
  getChild(_i) {
    return null;
  }
  getSymbol() {
    return this.symbol;
  }
  getPayload() {
    return this.symbol;
  }
  getSourceInterval() {
    if (this.symbol === null) {
      return Interval.INVALID_INTERVAL;
    }
    const tokenIndex = this.symbol.tokenIndex;
    return new Interval(tokenIndex, tokenIndex);
  }
  getChildCount() {
    return 0;
  }
  accept(visitor) {
    return visitor.visitTerminal(this);
  }
  getText() {
    return this.symbol?.text ?? "";
  }
  toString() {
    if (this.symbol?.type === Token.EOF) {
      return "<EOF>";
    } else {
      return this.symbol?.text ?? "";
    }
  }
  toStringTree() {
    return this.toString();
  }
};

// src/tree/ErrorNode.ts
var ErrorNode = class extends TerminalNode {
  static {
    __name(this, "ErrorNode");
  }
  accept(visitor) {
    return visitor.visitErrorNode(this);
  }
};

// src/CommonToken.ts
var CommonToken = class _CommonToken {
  static {
    __name(this, "CommonToken");
  }
  /**
   * An empty tuple which is used as the default value of
   * {@link source} for tokens that do not have a source.
   */
  // eslint-disable-next-line @typescript-eslint/naming-convention
  static EMPTY_SOURCE = [null, null];
  /**
   * These properties share a field to reduce the memory footprint of
   * {@link CommonToken}. Tokens created by a {@link CommonTokenFactory} from
   * the same source and input stream share a reference to the same
   * {@link Pair} containing these values.
   */
  source;
  tokenIndex;
  start;
  stop;
  /**
   * This is the backing field for {@link #getType} and {@link #setType}.
   */
  type;
  /**
   * The (one-based) line number on which the 1st character of this token was.
   */
  line;
  /**
   * The zero-based index of the first character position in its line.
   */
  column;
  /**
   * The token's channel.
   */
  channel;
  /**
   * This is the backing field for {@link getText} when the token text is
   * explicitly set in the constructor or via {@link setText}.
   */
  #text;
  constructor(details) {
    this.type = details.type;
    this.source = details.source;
    this.tokenIndex = details.tokenIndex ?? -1;
    this.line = details.line ?? 0;
    this.column = details.column ?? -1;
    this.channel = details.channel ?? Token.DEFAULT_CHANNEL;
    this.start = details.start ?? 0;
    this.stop = details.stop ?? 0;
    this.#text = details.text;
    if (details.source[0] !== null) {
      this.line = details.source[0].line;
      this.column = details.source[0].column;
    }
  }
  /**
   * Constructs a new {@link CommonToken} as a copy of another {@link Token}.
   *
   * If `token` is also a {@link CommonToken} instance, the newly
   * constructed token will share a reference to the {@link #text} field and
   * the {@link Pair} stored in {@link source}. Otherwise, {@link text} will
   * be assigned the result of calling {@link getText}, and {@link source}
   * will be constructed from the result of {@link Token.getTokenSource} and
   * {@link Token#getInputStream}.
   *
   * @param token The token to copy.
   */
  static fromToken(token) {
    const source = [token.tokenSource, token.inputStream];
    return new _CommonToken({
      type: token.type,
      line: token.line,
      tokenIndex: token.tokenIndex,
      column: token.column,
      channel: token.channel,
      start: token.start,
      stop: token.stop,
      text: token.text,
      source
    });
  }
  /**
   * Constructs a new {@link CommonToken} with the specified token type and text.
   *
   * @param type The token type.
   * @param text The text of the token.
   */
  static fromType(type, text) {
    return new _CommonToken({ type, text, source: _CommonToken.EMPTY_SOURCE });
  }
  static fromSource(source, type, channel, start, stop) {
    return new _CommonToken({ type, channel, start, stop, source });
  }
  get tokenSource() {
    return this.source[0];
  }
  get inputStream() {
    return this.source[1];
  }
  set inputStream(input) {
    this.source[1] = input;
  }
  /**
   * Constructs a new {@link CommonToken} as a copy of another {@link Token}.
   *
   * If `oldToken` is also a {@link CommonToken} instance, the newly
   * constructed token will share a reference to the {@link text} field and
   * the {@link Pair} stored in {@link source}. Otherwise, {@link text} will
   * be assigned the result of calling {@link getText}, and {@link source}
   * will be constructed from the result of {@link Token.getTokenSource} and
   * {@link Token.getInputStream}.
   */
  clone() {
    const t = new _CommonToken({
      source: this.source,
      type: this.type,
      channel: this.channel,
      start: this.start,
      stop: this.stop,
      tokenIndex: this.tokenIndex,
      line: this.line,
      column: this.column,
      text: this.#text
    });
    return t;
  }
  toString(recognizer) {
    let channelStr = "";
    if (this.channel > 0) {
      channelStr = ",channel=" + this.channel;
    }
    let text = this.text;
    if (text) {
      text = text.replace(/\n/g, "\\n");
      text = text.replace(/\r/g, "\\r");
      text = text.replace(/\t/g, "\\t");
    } else {
      text = "<no text>";
    }
    let typeString = String(this.type);
    if (recognizer) {
      typeString = recognizer.vocabulary.getDisplayName(this.type) ?? "<unknown>";
    }
    return "[@" + this.tokenIndex + "," + this.start + ":" + this.stop + "='" + text + "',<" + typeString + ">" + channelStr + "," + this.line + ":" + this.column + "]";
  }
  get text() {
    if (this.#text !== void 0) {
      return this.#text;
    }
    const input = this.inputStream;
    if (!input) {
      return void 0;
    }
    const n2 = input.size;
    if (this.start < n2 && this.stop < n2) {
      return input.getTextFromRange(this.start, this.stop);
    }
    return "<EOF>";
  }
  set text(text) {
    this.#text = text;
  }
  // WritableToken implementation
  setText(text) {
    this.#text = text;
  }
  setType(ttype) {
    this.type = ttype;
  }
  setLine(line) {
    this.line = line;
  }
  setCharPositionInLine(pos) {
    this.column = pos;
  }
  setChannel(channel) {
    this.channel = channel;
  }
  setTokenIndex(index) {
    this.tokenIndex = index;
  }
};

// src/tree/Trees.ts
var Trees = class _Trees {
  static {
    __name(this, "Trees");
  }
  /**
   * Print out a whole tree in LISP form. {@link getNodeText} is used on the
   * node payloads to get the text for the nodes.  Detect
   * parse trees and extract data appropriately.
   */
  static toStringTree(tree, ruleNames, recog) {
    ruleNames = ruleNames ?? null;
    if (recog) {
      ruleNames = recog.ruleNames;
    }
    let s = _Trees.getNodeText(tree, ruleNames);
    s = escapeWhitespace(s, false);
    const c = tree.getChildCount();
    if (c === 0) {
      return s;
    }
    let res = "(" + s + " ";
    if (c > 0) {
      s = _Trees.toStringTree(tree.getChild(0), ruleNames);
      res = res.concat(s);
    }
    for (let i = 1; i < c; i++) {
      s = _Trees.toStringTree(tree.getChild(i), ruleNames);
      res = res.concat(" " + s);
    }
    res = res.concat(")");
    return res;
  }
  static getNodeText(t, ruleNames, recog) {
    ruleNames = ruleNames ?? null;
    if (recog) {
      ruleNames = recog.ruleNames;
    }
    if (ruleNames !== null) {
      if (t instanceof ParserRuleContext) {
        const context = t.ruleContext;
        const altNumber = context.getAltNumber();
        if (altNumber !== 0) {
          return ruleNames[t.ruleIndex] + ":" + altNumber;
        }
        return ruleNames[t.ruleIndex];
      } else if (t instanceof ErrorNode) {
        return t.toString();
      } else if (t instanceof TerminalNode) {
        return t.symbol.text;
      }
    }
    const payload = t.getPayload();
    if (isToken(payload)) {
      return payload.text;
    }
    return String(t.getPayload());
  }
  /**
   * Return ordered list of all children of this node
   */
  static getChildren(t) {
    const list = [];
    for (let i = 0; i < t.getChildCount(); i++) {
      list.push(t.getChild(i));
    }
    return list;
  }
  /**
   * Return a list of all ancestors of this node.  The first node of
   * list is the root and the last is the parent of this node.
   */
  static getAncestors(t) {
    if (t.parent === null) {
      return [];
    }
    let ancestors = [];
    let p = t.parent;
    while (p !== null) {
      ancestors = [p].concat(ancestors);
      p = p.parent;
    }
    return ancestors;
  }
  /**
   * Return true if t is u's parent or a node on path to root from u.
   */
  static isAncestorOf(t, u) {
    if (t === null || u === null || t.parent === null) {
      return false;
    }
    let p = u.parent;
    while (p !== null) {
      if (t === p) {
        return true;
      }
      p = p.parent;
    }
    return false;
  }
  static findAllTokenNodes(t, ttype) {
    return _Trees.findAllNodes(t, ttype, true);
  }
  static findAllRuleNodes(t, ruleIndex) {
    return _Trees.findAllNodes(t, ruleIndex, false);
  }
  static findAllNodes(t, index, findTokens) {
    const nodes = [];
    _Trees.doFindAllNodes(t, index, findTokens, nodes);
    return nodes;
  }
  static descendants(t) {
    let nodes = [t];
    for (let i = 0; i < t.getChildCount(); i++) {
      nodes = nodes.concat(_Trees.descendants(t.getChild(i)));
    }
    return nodes;
  }
  /**
   * Find smallest subtree of t enclosing range startTokenIndex..stopTokenIndex
   * inclusively using post order traversal. Recursive depth-first-search.
   */
  static getRootOfSubtreeEnclosingRegion(t, startTokenIndex, stopTokenIndex) {
    const n2 = t.getChildCount();
    for (let i = 0; i < n2; i++) {
      const child = t.getChild(i);
      const r = this.getRootOfSubtreeEnclosingRegion(child, startTokenIndex, stopTokenIndex);
      if (r !== null) {
        return r;
      }
    }
    if (t instanceof ParserRuleContext) {
      if (startTokenIndex >= t.start.tokenIndex && // is range fully contained in t?
      (t.stop === null || stopTokenIndex <= t.stop.tokenIndex)) {
        return t;
      }
    }
    return null;
  }
  /**
   * Replace any subtree siblings of root that are completely to left
   * or right of lookahead range with a CommonToken(Token.INVALID_TYPE,"...")
   * node. The source interval for t is not altered to suit smaller range!
   *
   * WARNING: destructive to t.
   */
  static stripChildrenOutOfRange(t, root, startIndex, stopIndex) {
    if (t === null) {
      return;
    }
    for (let i = 0; i < t.getChildCount(); i++) {
      const child = t.getChild(i);
      const range = child.getSourceInterval();
      if (t instanceof ParserRuleContext && (range.stop < startIndex || range.start > stopIndex)) {
        if (this.isAncestorOf(child, root)) {
          const abbrev = CommonToken.fromType(Token.INVALID_TYPE, "...");
          t.children[i] = new TerminalNode(abbrev);
        }
      }
    }
  }
  static doFindAllNodes(t, index, findTokens, nodes) {
    if (findTokens && t instanceof TerminalNode) {
      if (t.symbol?.type === index) {
        nodes.push(t);
      }
    } else if (!findTokens && t instanceof ParserRuleContext) {
      if (t.ruleIndex === index) {
        nodes.push(t);
      }
    }
    for (let i = 0; i < t.getChildCount(); i++) {
      _Trees.doFindAllNodes(t.getChild(i), index, findTokens, nodes);
    }
  }
};

// src/ParserRuleContext.ts
var ParserRuleContext = class _ParserRuleContext {
  static {
    __name(this, "ParserRuleContext");
  }
  static empty = new _ParserRuleContext(null);
  start = null;
  stop = null;
  children = [];
  /**
   * What state invoked the rule associated with this context?
   *  The "return address" is the followState of invokingState
   *  If parent is null, this should be -1 this context object represents
   *  the start rule.
   */
  invokingState;
  #parent;
  /**
   * A rule context is a record of a single rule invocation. It knows
   * which context invoked it, if any. If there is no parent context, then
   * naturally the invoking state is not valid.  The parent link
   * provides a chain upwards from the current rule invocation to the root
   * of the invocation tree, forming a stack. We actually carry no
   * information about the rule associated with this context (except
   * when parsing). We keep only the state number of the invoking state from
   * the ATN submachine that invoked this. Contrast this with the s
   * pointer inside ParserRuleContext that tracks the current state
   * being "executed" for the current rule.
   *
   * The parent contexts are useful for computing lookahead sets and
   * getting error information.
   *
   * These objects are used during parsing and prediction.
   * For the special case of parsers, we use the subclass
   * ParserRuleContext.
   */
  constructor(parent, invokingStateNumber = -1) {
    this.#parent = parent;
    this.invokingState = invokingStateNumber;
  }
  /** Copy a context */
  copyFrom(ctx) {
    this.#parent = ctx.#parent;
    this.invokingState = ctx.invokingState;
    this.children.slice(0, this.children.length);
    this.start = ctx.start;
    this.stop = ctx.stop;
    if (ctx.children) {
      ctx.children.forEach((child) => {
        if (child instanceof ErrorNode) {
          this.children.push(child);
          child.parent = this;
        }
      });
    }
  }
  // Double dispatch methods for listeners
  enterRule(_listener) {
  }
  exitRule(_listener) {
  }
  addChild(child) {
    this.children.push(child);
    return child;
  }
  /**
   * Used by enterOuterAlt to toss out a RuleContext previously added as
   * we entered a rule. If we have label, we will need to remove
   * generic ruleContext object.
   */
  removeLastChild() {
    this.children.pop();
  }
  addTokenNode(token) {
    const node = new TerminalNode(token);
    this.children.push(node);
    node.parent = this;
    return node;
  }
  addErrorNode(errorNode) {
    errorNode.parent = this;
    this.children.push(errorNode);
    return errorNode;
  }
  getChild(i, type) {
    if (i < 0 || i >= this.children.length) {
      return null;
    }
    if (!type) {
      return this.children[i];
    }
    for (const child of this.children) {
      if (child instanceof type) {
        if (i === 0) {
          return child;
        } else {
          i -= 1;
        }
      }
    }
    return null;
  }
  getToken(ttype, i) {
    if (i < 0 || i >= this.children.length) {
      return null;
    }
    for (const child of this.children) {
      if ("symbol" in child) {
        if (child.symbol?.type === ttype) {
          if (i === 0) {
            return child;
          } else {
            i -= 1;
          }
        }
      }
    }
    return null;
  }
  getTokens(ttype) {
    const tokens = [];
    for (const child of this.children) {
      if ("symbol" in child) {
        if (child.symbol?.type === ttype) {
          tokens.push(child);
        }
      }
    }
    return tokens;
  }
  // XXX: base the child type selection on the rule index, not the class.
  getRuleContext(index, ctxType) {
    return this.getChild(index, ctxType);
  }
  // XXX: base the child type selection on the rule index, not the class.
  getRuleContexts(ctxType) {
    const contexts = [];
    for (const child of this.children) {
      if (child instanceof ctxType) {
        contexts.push(child);
      }
    }
    return contexts;
  }
  getChildCount() {
    return this.children.length;
  }
  getSourceInterval() {
    if (this.start === null || this.stop === null) {
      return Interval.INVALID_INTERVAL;
    } else {
      return new Interval(this.start.tokenIndex, this.stop.tokenIndex);
    }
  }
  get parent() {
    return this.#parent;
  }
  set parent(parent) {
    this.#parent = parent;
  }
  depth() {
    let n2 = 0;
    let p = this;
    while (p !== null) {
      p = p.parent;
      n2 += 1;
    }
    return n2;
  }
  /**
   * A context is empty if there is no invoking state; meaning nobody call
   * current context.
   */
  isEmpty() {
    return this.invokingState === -1;
  }
  get ruleContext() {
    return this;
  }
  get ruleIndex() {
    return -1;
  }
  getPayload() {
    return this;
  }
  getText() {
    if (this.children.length === 0) {
      return "";
    }
    return this.children.map((child) => {
      return child.getText();
    }).join("");
  }
  /**
   * For rule associated with this parse tree internal node, return
   * the outer alternative number used to match the input. Default
   * implementation does not compute nor store this alt num. Create
   * a subclass of ParserRuleContext with backing field and set
   * option contextSuperClass.
   * to set it.
   */
  getAltNumber() {
    return ATN.INVALID_ALT_NUMBER;
  }
  /**
   * Set the outer alternative number for this context node. Default
   * implementation does nothing to avoid backing field overhead for
   * trees that don't need it.  Create
   * a subclass of ParserRuleContext with backing field and set
   * option contextSuperClass.
   */
  setAltNumber(_altNumber) {
  }
  accept(visitor) {
    return visitor.visitChildren(this);
  }
  toStringTree(...args) {
    if (args.length < 2) {
      return Trees.toStringTree(this, null, args[0]);
    }
    return Trees.toStringTree(this, args[0], args[1]);
  }
  toString(ruleNames, stop) {
    ruleNames = ruleNames ?? null;
    stop = stop ?? null;
    let p = this;
    let s = "[";
    while (p !== null && p !== stop) {
      if (ruleNames === null) {
        if (!p.isEmpty()) {
          s += p.invokingState;
        }
      } else {
        const ri = p.ruleIndex;
        const ruleName = ri >= 0 && ri < ruleNames.length ? ruleNames[ri] : "" + ri;
        s += ruleName;
      }
      if (p.parent !== null && (ruleNames !== null || !p.parent.isEmpty())) {
        s += " ";
      }
      p = p.parent;
    }
    s += "]";
    return s;
  }
};

// src/misc/ObjectEqualityComparator.ts
var ObjectEqualityComparator = class _ObjectEqualityComparator {
  static {
    __name(this, "ObjectEqualityComparator");
  }
  static instance = new _ObjectEqualityComparator();
  hashCode(obj) {
    if (obj == null) {
      return 0;
    }
    return obj.hashCode();
  }
  equals(a, b) {
    if (a == null) {
      return b == null;
    }
    return a.equals(b);
  }
};

// src/misc/DefaultEqualityComparator.ts
var DefaultEqualityComparator = class _DefaultEqualityComparator {
  static {
    __name(this, "DefaultEqualityComparator");
  }
  static instance = new _DefaultEqualityComparator();
  hashCode(obj) {
    if (obj == null) {
      return 0;
    }
    return ObjectEqualityComparator.instance.hashCode(obj);
  }
  equals(a, b) {
    if (a == null) {
      return b == null;
    }
    if (typeof a === "string" || typeof a === "number") {
      return a === b;
    }
    return ObjectEqualityComparator.instance.equals(a, b);
  }
};

// src/misc/HashSet.ts
var HashSet = class _HashSet {
  static {
    __name(this, "HashSet");
  }
  static #defaultLoadFactor = 0.75;
  static #initialCapacity = 16;
  // must be power of 2
  #comparator;
  #buckets;
  /** How many elements in set */
  #itemCount = 0;
  #threshold;
  constructor(comparatorOrSet, initialCapacity = _HashSet.#initialCapacity) {
    if (comparatorOrSet instanceof _HashSet) {
      this.#comparator = comparatorOrSet.#comparator;
      this.#buckets = comparatorOrSet.#buckets.slice(0);
      for (let i = 0; i < this.#buckets.length; i++) {
        const bucket = this.#buckets[i];
        if (bucket) {
          this.#buckets[i] = bucket.slice(0);
        }
      }
      this.#itemCount = comparatorOrSet.#itemCount;
      this.#threshold = comparatorOrSet.#threshold;
    } else {
      this.#comparator = comparatorOrSet ?? DefaultEqualityComparator.instance;
      this.#buckets = this.createBuckets(initialCapacity);
      this.#threshold = Math.floor(_HashSet.#initialCapacity * _HashSet.#defaultLoadFactor);
    }
  }
  /**
   * Add `o` to set if not there; return existing value if already
   * there. This method performs the same operation as {@link #add} aside from
   * the return value.
   *
   * @param o the object to add to the set.
   *
   * @returns An existing element that equals to `o` if already in set, otherwise `o`.
   */
  getOrAdd(o) {
    if (this.#itemCount > this.#threshold) {
      this.expand();
    }
    const b = this.getBucket(o);
    let bucket = this.#buckets[b];
    if (!bucket) {
      bucket = [o];
      this.#buckets[b] = bucket;
      ++this.#itemCount;
      return o;
    }
    for (const existing of bucket) {
      if (this.#comparator.equals(existing, o)) {
        return existing;
      }
    }
    bucket.push(o);
    ++this.#itemCount;
    return o;
  }
  get(o) {
    if (o == null) {
      return o;
    }
    const b = this.getBucket(o);
    const bucket = this.#buckets[b];
    if (!bucket) {
      return void 0;
    }
    for (const e of bucket) {
      if (this.#comparator.equals(e, o)) {
        return e;
      }
    }
    return void 0;
  }
  /**
   * Removes the specified element from this set if it is present.
   *
   * @param o object to be removed from this set, if present.
   *
   * @returns `true` if the set contained the specified element.
   */
  remove(o) {
    if (o == null) {
      return false;
    }
    const b = this.getBucket(o);
    const bucket = this.#buckets[b];
    if (!bucket) {
      return false;
    }
    for (let i = 0; i < bucket.length; i++) {
      const existing = bucket[i];
      if (this.#comparator.equals(existing, o)) {
        bucket.splice(i, 1);
        --this.#itemCount;
        return true;
      }
    }
    return false;
  }
  hashCode() {
    let hash = MurmurHash.initialize();
    for (const bucket of this.#buckets) {
      if (bucket == null) {
        continue;
      }
      for (const o of bucket) {
        if (o == null) {
          break;
        }
        hash = MurmurHash.update(hash, this.#comparator.hashCode(o));
      }
    }
    hash = MurmurHash.finish(hash, this.size);
    return hash;
  }
  equals(o) {
    if (o === this) {
      return true;
    }
    if (!(o instanceof _HashSet)) {
      return false;
    }
    if (o.size !== this.size) {
      return false;
    }
    return this.containsAll(o);
  }
  add(t) {
    const existing = this.getOrAdd(t);
    return existing === t;
  }
  contains(o) {
    return this.containsFast(o);
  }
  containsFast(obj) {
    if (obj == null) {
      return false;
    }
    return this.get(obj) !== void 0;
  }
  *[Symbol.iterator]() {
    yield* this.toArray();
  }
  toArray() {
    const a = new Array(this.size);
    let i = 0;
    for (const bucket of this.#buckets) {
      if (bucket == null) {
        continue;
      }
      for (const o of bucket) {
        if (o == null) {
          break;
        }
        a[i++] = o;
      }
    }
    return a;
  }
  containsAll(collection) {
    if (collection instanceof _HashSet) {
      for (const bucket of collection.#buckets) {
        if (bucket == null) {
          continue;
        }
        for (const o of bucket) {
          if (o == null) {
            break;
          }
          if (!this.containsFast(o)) {
            return false;
          }
        }
      }
    } else {
      for (const o of collection) {
        if (!this.containsFast(o)) {
          return false;
        }
      }
    }
    return true;
  }
  addAll(c) {
    let changed = false;
    for (const o of c) {
      const existing = this.getOrAdd(o);
      if (existing !== o) {
        changed = true;
      }
    }
    return changed;
  }
  clear() {
    this.#buckets = this.createBuckets(_HashSet.#initialCapacity);
    this.#itemCount = 0;
    this.#threshold = Math.floor(_HashSet.#initialCapacity * _HashSet.#defaultLoadFactor);
  }
  toString() {
    if (this.size === 0) {
      return "{}";
    }
    let buf = "{";
    let first = true;
    for (const bucket of this.#buckets) {
      if (bucket == null) {
        continue;
      }
      for (const o of bucket) {
        if (o == null) {
          break;
        }
        if (first) {
          first = false;
        } else {
          buf += ", ";
        }
        buf += o.toString();
      }
    }
    buf += "}";
    return buf;
  }
  toTableString() {
    let buf = "";
    for (const bucket of this.#buckets) {
      if (bucket == null) {
        buf += "null\n";
        continue;
      }
      buf += "[";
      let first = true;
      for (const o of bucket) {
        if (first) {
          first = false;
        } else {
          buf += " ";
        }
        if (o == null) {
          buf += "_";
        } else {
          buf += o.toString();
        }
      }
      buf += "]\n";
    }
    return buf;
  }
  getBucket(o) {
    const hash = this.#comparator.hashCode(o);
    const b = hash & this.#buckets.length - 1;
    return b;
  }
  expand() {
    const old = this.#buckets;
    const newCapacity = this.#buckets.length * 2;
    const newTable = this.createBuckets(newCapacity);
    this.#buckets = newTable;
    this.#threshold = Math.floor(newCapacity * _HashSet.#defaultLoadFactor);
    for (const bucket of old) {
      if (!bucket) {
        continue;
      }
      for (const o of bucket) {
        const b = this.getBucket(o);
        let newBucket = this.#buckets[b];
        if (!newBucket) {
          newBucket = [];
          this.#buckets[b] = newBucket;
        }
        newBucket.push(o);
      }
    }
  }
  get size() {
    return this.#itemCount;
  }
  get isEmpty() {
    return this.#itemCount === 0;
  }
  /**
   * Return an array of `T[]` with length `capacity`.
   *
   * @param capacity the length of the array to return
   * @returns the newly constructed array
   */
  createBuckets(capacity) {
    return new Array(capacity);
  }
};

// src/misc/MapKeyEqualityOperator.ts
var MapKeyEqualityComparator = class {
  static {
    __name(this, "MapKeyEqualityComparator");
  }
  keyComparator;
  constructor(keyComparator) {
    this.keyComparator = keyComparator;
  }
  hashCode(obj) {
    return this.keyComparator.hashCode(obj.key);
  }
  equals(a, b) {
    return this.keyComparator.equals(a.key, b.key);
  }
};

// src/misc/HashMap.ts
var HashMap = class _HashMap {
  static {
    __name(this, "HashMap");
  }
  backingStore;
  constructor(keyComparer) {
    if (keyComparer instanceof _HashMap) {
      this.backingStore = new HashSet(keyComparer.backingStore);
    } else {
      keyComparer = keyComparer ?? DefaultEqualityComparator.instance;
      this.backingStore = new HashSet(new MapKeyEqualityComparator(keyComparer));
    }
  }
  clear() {
    this.backingStore.clear();
  }
  containsKey(key) {
    return this.backingStore.contains({ key });
  }
  get(key) {
    const bucket = this.backingStore.get({ key });
    if (!bucket) {
      return void 0;
    }
    return bucket.value;
  }
  get isEmpty() {
    return this.backingStore.isEmpty;
  }
  /**
   * Sets the value for a key in the map. If the key is not present in the map, it is added.
   * If the key is present, the value is updated and the old value is returned.
   *
   * @param key The key to set.
   * @param value The value to set.
   *
   * @returns The old value for the key, if present.
   */
  set(key, value) {
    const element = this.backingStore.get({ key, value });
    let result;
    if (!element) {
      this.backingStore.add({ key, value });
    } else {
      result = element.value;
      element.value = value;
    }
    return result;
  }
  /**
   * Sets the value for a key in the map if the key is not already present. Otherwise the value is not changed and
   * the old value is returned.
   *
   * @param key The key to set.
   * @param value The value to set.
   *
   * @returns The current value for the key, if present.
   */
  setIfAbsent(key, value) {
    const element = this.backingStore.get({ key, value });
    let result;
    if (!element) {
      this.backingStore.add({ key, value });
    } else {
      result = element.value;
    }
    return result;
  }
  values() {
    return this.backingStore.toArray().map((bucket) => {
      return bucket.value;
    });
  }
  get size() {
    return this.backingStore.size;
  }
  hashCode() {
    return this.backingStore.hashCode();
  }
  equals(o) {
    return this.backingStore.equals(o.backingStore);
  }
};

// src/atn/PredictionContextUtils.ts
var predictionContextFromRuleContext = /* @__PURE__ */ __name((atn, outerContext) => {
  if (!outerContext) {
    outerContext = ParserRuleContext.empty;
  }
  if (!outerContext.parent || outerContext === ParserRuleContext.empty) {
    return PredictionContext.EMPTY;
  }
  const parent = predictionContextFromRuleContext(atn, outerContext.parent);
  const state = atn.states[outerContext.invokingState];
  const transition = state.transitions[0];
  return SingletonPredictionContext.create(parent, transition.followState.stateNumber);
}, "predictionContextFromRuleContext");
var getCachedPredictionContext = /* @__PURE__ */ __name((context, contextCache, visited) => {
  if (context.isEmpty()) {
    return context;
  }
  let existing = visited.get(context);
  if (existing) {
    return existing;
  }
  existing = contextCache.get(context);
  if (existing) {
    visited.set(context, existing);
    return existing;
  }
  let changed = false;
  let parents = [];
  for (let i = 0; i < parents.length; i++) {
    const parent = getCachedPredictionContext(context.getParent(i), contextCache, visited);
    if (changed || parent !== context.getParent(i)) {
      if (!changed) {
        parents = [];
        for (let j = 0; j < context.length; j++) {
          parents[j] = context.getParent(j);
        }
        changed = true;
      }
      parents[i] = parent;
    }
  }
  if (!changed) {
    contextCache.add(context);
    visited.set(context, context);
    return context;
  }
  let updated;
  if (parents.length === 0) {
    updated = PredictionContext.EMPTY;
  } else if (parents.length === 1) {
    updated = SingletonPredictionContext.create(parents[0] ?? void 0, context.getReturnState(0));
  } else {
    updated = new ArrayPredictionContext(parents, context.returnStates);
  }
  contextCache.add(updated);
  visited.set(updated, updated);
  visited.set(context, updated);
  return updated;
}, "getCachedPredictionContext");
var merge = /* @__PURE__ */ __name((a, b, rootIsWildcard, mergeCache) => {
  if (a === b) {
    return a;
  }
  if (a instanceof SingletonPredictionContext && b instanceof SingletonPredictionContext) {
    return mergeSingletons(a, b, rootIsWildcard, mergeCache);
  }
  if (rootIsWildcard) {
    if (a instanceof EmptyPredictionContext) {
      return a;
    }
    if (b instanceof EmptyPredictionContext) {
      return b;
    }
  }
  if (a instanceof SingletonPredictionContext) {
    a = new ArrayPredictionContext([a.parent], [a.returnState]);
  }
  if (b instanceof SingletonPredictionContext) {
    b = new ArrayPredictionContext([b.parent], [b.returnState]);
  }
  return mergeArrays(a, b, rootIsWildcard, mergeCache);
}, "merge");
var mergeArrays = /* @__PURE__ */ __name((a, b, rootIsWildcard, mergeCache) => {
  if (mergeCache) {
    let previous = mergeCache.get(a, b);
    if (previous) {
      return previous;
    }
    previous = mergeCache.get(b, a);
    if (previous) {
      return previous;
    }
  }
  let i = 0;
  let j = 0;
  let k = 0;
  let mergedReturnStates = new Array(a.returnStates.length + b.returnStates.length).fill(0);
  let mergedParents = new Array(a.returnStates.length + b.returnStates.length).fill(null);
  while (i < a.returnStates.length && j < b.returnStates.length) {
    const aParent = a.parents[i];
    const bParent = b.parents[j];
    if (a.returnStates[i] === b.returnStates[j]) {
      const payload = a.returnStates[i];
      const bothDollars = payload === PredictionContext.EMPTY_RETURN_STATE && aParent === null && bParent === null;
      const axAx = aParent !== null && bParent !== null && aParent === bParent;
      if (bothDollars || axAx) {
        mergedParents[k] = aParent;
        mergedReturnStates[k] = payload;
      } else {
        mergedParents[k] = merge(aParent, bParent, rootIsWildcard, mergeCache);
        mergedReturnStates[k] = payload;
      }
      i += 1;
      j += 1;
    } else if (a.returnStates[i] < b.returnStates[j]) {
      mergedParents[k] = aParent;
      mergedReturnStates[k] = a.returnStates[i];
      i += 1;
    } else {
      mergedParents[k] = bParent;
      mergedReturnStates[k] = b.returnStates[j];
      j += 1;
    }
    k += 1;
  }
  if (i < a.returnStates.length) {
    for (let p = i; p < a.returnStates.length; p++) {
      mergedParents[k] = a.parents[p];
      mergedReturnStates[k] = a.returnStates[p];
      k += 1;
    }
  } else {
    for (let p = j; p < b.returnStates.length; p++) {
      mergedParents[k] = b.parents[p];
      mergedReturnStates[k] = b.returnStates[p];
      k += 1;
    }
  }
  if (k < mergedParents.length) {
    if (k === 1) {
      const aNew = SingletonPredictionContext.create(mergedParents[0] ?? void 0, mergedReturnStates[0]);
      if (mergeCache !== null) {
        mergeCache.set(a, b, aNew);
      }
      return aNew;
    }
    mergedParents = mergedParents.slice(0, k);
    mergedReturnStates = mergedReturnStates.slice(0, k);
  }
  const merged = new ArrayPredictionContext(mergedParents, mergedReturnStates);
  if (merged.equals(a)) {
    if (mergeCache !== null) {
      mergeCache.set(a, b, a);
    }
    if (PredictionContext.traceATNSimulator) {
      console.log("mergeArrays a=" + a + ",b=" + b + " -> a");
    }
    return a;
  }
  if (merged.equals(b)) {
    if (mergeCache !== null) {
      mergeCache.set(a, b, b);
    }
    return b;
  }
  combineCommonParents(mergedParents);
  if (mergeCache !== null) {
    mergeCache.set(a, b, merged);
  }
  if (PredictionContext.traceATNSimulator) {
    console.log("mergeArrays a=" + a + ",b=" + b + " -> " + merged);
  }
  return merged;
}, "mergeArrays");
var combineCommonParents = /* @__PURE__ */ __name((parents) => {
  const uniqueParents = new HashMap(ObjectEqualityComparator.instance);
  for (const parent of parents) {
    if (parent) {
      if (!uniqueParents.containsKey(parent)) {
        uniqueParents.set(parent, parent);
      }
    }
  }
  for (let q = 0; q < parents.length; q++) {
    if (parents[q]) {
      parents[q] = uniqueParents.get(parents[q]) ?? null;
    }
  }
}, "combineCommonParents");
var mergeSingletons = /* @__PURE__ */ __name((a, b, rootIsWildcard, mergeCache) => {
  if (mergeCache !== null) {
    let previous = mergeCache.get(a, b);
    if (previous !== null) {
      return previous;
    }
    previous = mergeCache.get(b, a);
    if (previous !== null) {
      return previous;
    }
  }
  const rootMerge = mergeRoot(a, b, rootIsWildcard);
  if (rootMerge !== null) {
    if (mergeCache !== null) {
      mergeCache.set(a, b, rootMerge);
    }
    return rootMerge;
  }
  if (a.returnState === b.returnState) {
    const parent = merge(a.parent, b.parent, rootIsWildcard, mergeCache);
    if (parent === a.parent) {
      return a;
    }
    if (parent === b.parent) {
      return b;
    }
    const spc = SingletonPredictionContext.create(parent, a.returnState);
    if (mergeCache !== null) {
      mergeCache.set(a, b, spc);
    }
    return spc;
  } else {
    let singleParent = null;
    if (a === b || a.parent !== null && a.parent === b.parent) {
      singleParent = a.parent;
    }
    if (singleParent !== null) {
      const payloads2 = [a.returnState, b.returnState];
      if (a.returnState > b.returnState) {
        payloads2[0] = b.returnState;
        payloads2[1] = a.returnState;
      }
      const parents2 = [singleParent, singleParent];
      const apc = new ArrayPredictionContext(parents2, payloads2);
      if (mergeCache !== null) {
        mergeCache.set(a, b, apc);
      }
      return apc;
    }
    const payloads = [a.returnState, b.returnState];
    let parents = [a.parent, b.parent];
    if (a.returnState > b.returnState) {
      payloads[0] = b.returnState;
      payloads[1] = a.returnState;
      parents = [b.parent, a.parent];
    }
    const aNew = new ArrayPredictionContext(parents, payloads);
    if (mergeCache !== null) {
      mergeCache.set(a, b, aNew);
    }
    return aNew;
  }
}, "mergeSingletons");
var mergeRoot = /* @__PURE__ */ __name((a, b, rootIsWildcard) => {
  if (rootIsWildcard) {
    if (a === PredictionContext.EMPTY || b === PredictionContext.EMPTY) {
      return PredictionContext.EMPTY;
    }
  } else {
    if (a === PredictionContext.EMPTY && b === PredictionContext.EMPTY) {
      return PredictionContext.EMPTY;
    }
    if (a === PredictionContext.EMPTY) {
      const payloads = [
        b.returnState,
        PredictionContext.EMPTY_RETURN_STATE
      ];
      const parents = [b.parent, null];
      return new ArrayPredictionContext(parents, payloads);
    }
    if (b === PredictionContext.EMPTY) {
      const payloads = [a.returnState, PredictionContext.EMPTY_RETURN_STATE];
      const parents = [a.parent, null];
      return new ArrayPredictionContext(parents, payloads);
    }
  }
  return null;
}, "mergeRoot");

// src/misc/BitSet.ts
var BitSet = class {
  static {
    __name(this, "BitSet");
  }
  data;
  /**
   * Creates a new bit set. All bits are initially `false`.
   *
   * @param data Optional initial data.
   */
  constructor(data) {
    if (data) {
      this.data = new Uint32Array(data.map((value) => {
        return value >>> 0;
      }));
    } else {
      this.data = new Uint32Array(1);
    }
  }
  /**
   * @returns an iterator over all set bits.
   */
  [Symbol.iterator]() {
    const length = this.data.length;
    let currentIndex = 0;
    let currentWord = this.data[currentIndex];
    const words = this.data;
    return {
      [Symbol.iterator]() {
        return this;
      },
      next: /* @__PURE__ */ __name(() => {
        while (currentIndex < length) {
          if (currentWord !== 0) {
            const t = currentWord & -currentWord;
            const value = (currentIndex << 5) + this.bitCount(t - 1);
            currentWord ^= t;
            return { done: false, value };
          } else {
            currentIndex++;
            if (currentIndex < length) {
              currentWord = words[currentIndex];
            }
          }
        }
        return { done: true, value: void 0 };
      }, "next")
    };
  }
  /**
   * Sets a single bit or all of the bits in this `BitSet` to `false`.
   *
   * @param index the index of the bit to be cleared, or undefined to clear all bits.
   */
  clear(index) {
    if (index === void 0) {
      this.data = new Uint32Array();
    } else {
      this.resize(index);
      this.data[index >>> 5] &= ~(1 << index);
    }
  }
  /**
   * Performs a logical **OR** of this bit set with the bit set argument. This bit set is modified so that a bit in it
   * has the value `true` if and only if it either already had the value `true` or the corresponding bit in the bit
   * set argument has the value `true`.
   *
   * @param set the bit set to be ORed with.
   */
  or(set) {
    const minCount = Math.min(this.data.length, set.data.length);
    for (let k = 0; k < minCount; ++k) {
      this.data[k] |= set.data[k];
    }
    if (this.data.length < set.data.length) {
      this.resize((set.data.length << 5) - 1);
      const c = set.data.length;
      for (let k = minCount; k < c; ++k) {
        this.data[k] = set.data[k];
      }
    }
  }
  /**
   * Returns the value of the bit with the specified index. The value is `true` if the bit with the index `bitIndex`
   * is currently set in this `BitSet`; otherwise, the result is `false`.
   *
   * @param index the bit index
   *
   * @returns the value of the bit with the specified index.
   */
  get(index) {
    if (index < 0) {
      throw new RangeError("index cannot be negative");
    }
    const slot = index >>> 5;
    if (slot >= this.data.length) {
      return false;
    }
    return (this.data[slot] & 1 << index % 32) !== 0;
  }
  /**
   * @returns the number of set bits.
   */
  get length() {
    let result = 0;
    const c = this.data.length;
    const w = this.data;
    for (let i = 0; i < c; i++) {
      result += this.bitCount(w[i]);
    }
    return result;
  }
  /**
   * @returns an array with indices of set bits.
   */
  values() {
    const result = new Array(this.length);
    let pos = 0;
    const length = this.data.length;
    for (let k = 0; k < length; ++k) {
      let w = this.data[k];
      while (w !== 0) {
        const t = w & -w;
        result[pos++] = (k << 5) + this.bitCount(t - 1);
        w ^= t;
      }
    }
    return result;
  }
  /**
   * @returns the index of the first bit that is set to `true` that occurs on or after the specified starting index.
   * If no such bit exists then undefined is returned.
   *
   * @param fromIndex the index to start checking from (inclusive)
   */
  nextSetBit(fromIndex) {
    if (fromIndex < 0) {
      throw new RangeError("index cannot be negative");
    }
    for (const index of this) {
      if (index >= fromIndex) {
        return index;
      }
    }
    return void 0;
  }
  /**
   * Sets the bit at the specified index to `true`.
   *
   * @param index a bit index
   */
  set(index) {
    if (index < 0) {
      throw new RangeError("index cannot be negative");
    }
    this.resize(index);
    this.data[index >>> 5] |= 1 << index % 32;
  }
  /**
   * @returns a string representation of this bit set.
   */
  toString() {
    return "{" + this.values().join(", ") + "}";
  }
  resize(index) {
    const count = index + 32 >>> 5;
    if (count <= this.data.length) {
      return;
    }
    const data = new Uint32Array(count);
    data.set(this.data);
    data.fill(0, this.data.length);
    this.data = data;
  }
  bitCount(v) {
    v = v - (v >> 1 & 1431655765);
    v = (v & 858993459) + (v >> 2 & 858993459);
    v = v + (v >> 4) & 252645135;
    v = v + (v >> 8);
    v = v + (v >> 16);
    return v & 63;
  }
};

// src/atn/ATNState.ts
var ATNState = class _ATNState {
  static {
    __name(this, "ATNState");
  }
  static INVALID_STATE_NUMBER = -1;
  static INVALID_TYPE = 0;
  static BASIC = 1;
  static RULE_START = 2;
  static BLOCK_START = 3;
  static PLUS_BLOCK_START = 4;
  static STAR_BLOCK_START = 5;
  static TOKEN_START = 6;
  static RULE_STOP = 7;
  static BLOCK_END = 8;
  static STAR_LOOP_BACK = 9;
  static STAR_LOOP_ENTRY = 10;
  static PLUS_LOOP_BACK = 11;
  static LOOP_END = 12;
  static stateType = _ATNState.INVALID_STATE_NUMBER;
  stateNumber = 0;
  ruleIndex = 0;
  // at runtime, we don't have Rule objects
  epsilonOnlyTransitions = false;
  /** Used to cache lookahead during parsing, not used during construction */
  nextTokenWithinRule;
  /** Track the transitions emanating from this ATN state. */
  transitions = [];
  hashCode() {
    return this.stateNumber;
  }
  equals(other) {
    return this.stateNumber === other.stateNumber;
  }
  toString() {
    return `${this.stateNumber}`;
  }
  addTransitionAtIndex(index, transition) {
    if (this.transitions.length === 0) {
      this.epsilonOnlyTransitions = transition.isEpsilon;
    } else if (this.epsilonOnlyTransitions !== transition.isEpsilon) {
      this.epsilonOnlyTransitions = false;
    }
    this.transitions.splice(index, 1, transition);
  }
  addTransition(transition) {
    if (this.transitions.length === 0) {
      this.epsilonOnlyTransitions = transition.isEpsilon;
    } else if (this.epsilonOnlyTransitions !== transition.isEpsilon) {
      this.epsilonOnlyTransitions = false;
    }
    this.transitions.push(transition);
  }
  setTransition(i, e) {
    this.transitions.splice(i, 1, e);
  }
  removeTransition(index) {
    const t = this.transitions.splice(index, 1);
    return t[0];
  }
};

// src/atn/SemanticContext.ts
var SemanticContext = class _SemanticContext {
  static {
    __name(this, "SemanticContext");
  }
  cachedHashCode;
  static andContext(a, b) {
    if (a === null || a === _SemanticContext.NONE) {
      return b;
    }
    if (b === null || b === _SemanticContext.NONE) {
      return a;
    }
    const result = new AND(a, b);
    if (result.operands.length === 1) {
      return result.operands[0];
    }
    return result;
  }
  static orContext(a, b) {
    if (a === null) {
      return b;
    }
    if (b === null) {
      return a;
    }
    if (a === _SemanticContext.NONE || b === _SemanticContext.NONE) {
      return _SemanticContext.NONE;
    }
    const result = new OR(a, b);
    if (result.operands.length === 1) {
      return result.operands[0];
    } else {
      return result;
    }
  }
  static filterPrecedencePredicates(set) {
    const result = [];
    for (const context of set) {
      if (context instanceof _SemanticContext.PrecedencePredicate) {
        result.push(context);
      }
    }
    return result;
  }
  /**
   * Evaluate the precedence predicates for the context and reduce the result.
   *
   * @param _parser The parser instance.
   * @param _parserCallStack The current parser context object.
   * @returns The simplified semantic context after precedence predicates are
   * evaluated, which will be one of the following values.
   * - {@link NONE}: if the predicate simplifies to `true` after
   * precedence predicates are evaluated.
   * - `null`: if the predicate simplifies to `false` after
   * precedence predicates are evaluated.
   * - `this`: if the semantic context is not changed as a result of
   * precedence predicate evaluation.
   * - A non-`null` {@link SemanticContext}: the new simplified
   * semantic context after precedence predicates are evaluated.
   */
  evalPrecedence(_parser, _parserCallStack) {
    return this;
  }
};
var AND = class _AND extends SemanticContext {
  static {
    __name(this, "AND");
  }
  operands;
  /**
   * A semantic context which is true whenever none of the contained contexts
   * is false
   */
  constructor(a, b) {
    super();
    const operands = new HashSet();
    if (a instanceof _AND) {
      a.operands.forEach((o) => {
        operands.add(o);
      });
    } else {
      operands.add(a);
    }
    if (b instanceof _AND) {
      b.operands.forEach((o) => {
        operands.add(o);
      });
    } else {
      operands.add(b);
    }
    const precedencePredicates = SemanticContext.filterPrecedencePredicates(operands);
    if (precedencePredicates.length > 0) {
      let reduced = null;
      precedencePredicates.forEach((p) => {
        if (reduced === null || p.precedence < reduced.precedence) {
          reduced = p;
        }
      });
      if (reduced) {
        operands.add(reduced);
      }
    }
    this.operands = operands.toArray();
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _AND)) {
      return false;
    }
    return equalArrays(this.operands, other.operands);
  }
  hashCode() {
    if (this.cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      for (const operand of this.operands) {
        hash = MurmurHash.updateFromComparable(hash, operand);
      }
      hash = MurmurHash.update(hash, 3813686060);
      this.cachedHashCode = MurmurHash.finish(hash, this.operands.length + 1);
    }
    return this.cachedHashCode;
  }
  /**
   * {@inheritDoc}
   *
   *
   * The evaluation of predicates by this context is short-circuiting, but
   * unordered.
   */
  evaluate(parser, parserCallStack) {
    for (const operand of this.operands) {
      if (!operand.evaluate(parser, parserCallStack)) {
        return false;
      }
    }
    return true;
  }
  evalPrecedence(parser, parserCallStack) {
    let differs = false;
    const operands = [];
    for (const context of this.operands) {
      const evaluated = context.evalPrecedence(parser, parserCallStack);
      differs ||= evaluated !== context;
      if (evaluated === null) {
        return null;
      } else if (evaluated !== SemanticContext.NONE) {
        operands.push(evaluated);
      }
    }
    if (!differs) {
      return this;
    }
    if (operands.length === 0) {
      return SemanticContext.NONE;
    }
    let result = null;
    operands.forEach((o) => {
      result = result === null ? o : SemanticContext.andContext(result, o);
    });
    return result;
  }
  toString() {
    const s = this.operands.map((o) => {
      return o.toString();
    });
    return (s.length > 3 ? s.slice(3) : s).join("&&");
  }
};
var OR = class _OR extends SemanticContext {
  static {
    __name(this, "OR");
  }
  operands;
  /**
   * A semantic context which is true whenever at least one of the contained
   * contexts is true
   */
  constructor(a, b) {
    super();
    const operands = new HashSet();
    if (a instanceof _OR) {
      a.operands.forEach((o) => {
        operands.add(o);
      });
    } else {
      operands.add(a);
    }
    if (b instanceof _OR) {
      b.operands.forEach((o) => {
        operands.add(o);
      });
    } else {
      operands.add(b);
    }
    const precedencePredicates = SemanticContext.filterPrecedencePredicates(operands);
    if (precedencePredicates.length > 0) {
      const s = precedencePredicates.sort((a2, b2) => {
        return a2.compareTo(b2);
      });
      const reduced = s[s.length - 1];
      operands.add(reduced);
    }
    this.operands = operands.toArray();
  }
  equals(other) {
    if (this === other) {
      return true;
    } else if (!(other instanceof _OR)) {
      return false;
    } else {
      return equalArrays(this.operands, other.operands);
    }
  }
  hashCode() {
    if (this.cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      for (const operand of this.operands) {
        hash = MurmurHash.updateFromComparable(hash, operand);
      }
      hash = MurmurHash.update(hash, 3383313031);
      this.cachedHashCode = MurmurHash.finish(hash, this.operands.length + 1);
    }
    return this.cachedHashCode;
  }
  /**
   * The evaluation of predicates by this context is short-circuiting, but unordered.
   */
  evaluate(parser, parserCallStack) {
    for (const operand of this.operands) {
      if (operand.evaluate(parser, parserCallStack)) {
        return true;
      }
    }
    return false;
  }
  evalPrecedence(parser, parserCallStack) {
    let differs = false;
    const operands = [];
    for (const context of this.operands) {
      const evaluated = context.evalPrecedence(parser, parserCallStack);
      differs ||= evaluated !== context;
      if (evaluated === SemanticContext.NONE) {
        return SemanticContext.NONE;
      } else if (evaluated !== null) {
        operands.push(evaluated);
      }
    }
    if (!differs) {
      return this;
    }
    if (operands.length === 0) {
      return null;
    }
    let result = null;
    operands.forEach((o) => {
      result = result === null ? o : SemanticContext.orContext(result, o);
    });
    return result;
  }
  toString() {
    const s = this.operands.map((o) => {
      return o.toString();
    });
    return (s.length > 3 ? s.slice(3) : s).join("||");
  }
};
((SemanticContext2) => {
  class Predicate extends SemanticContext2 {
    static {
      __name(this, "Predicate");
    }
    ruleIndex;
    predIndex;
    isCtxDependent;
    // e.g., $i ref in pred
    constructor(ruleIndex, predIndex, isCtxDependent) {
      super();
      this.ruleIndex = ruleIndex ?? -1;
      this.predIndex = predIndex ?? -1;
      this.isCtxDependent = isCtxDependent ?? false;
    }
    evaluate(parser, outerContext) {
      const localctx = this.isCtxDependent ? outerContext : null;
      return parser.sempred(localctx, this.ruleIndex, this.predIndex);
    }
    hashCode() {
      if (this.cachedHashCode === void 0) {
        let hashCode = MurmurHash.initialize();
        hashCode = MurmurHash.update(hashCode, this.ruleIndex);
        hashCode = MurmurHash.update(hashCode, this.predIndex);
        hashCode = MurmurHash.update(hashCode, this.isCtxDependent ? 1 : 0);
        hashCode = MurmurHash.finish(hashCode, 3);
        this.cachedHashCode = hashCode;
      }
      return this.cachedHashCode;
    }
    equals(other) {
      if (this === other) {
        return true;
      }
      return this.ruleIndex === other.ruleIndex && this.predIndex === other.predIndex && this.isCtxDependent === other.isCtxDependent;
    }
    toString() {
      return "{" + this.ruleIndex + ":" + this.predIndex + "}?";
    }
  }
  SemanticContext2.Predicate = Predicate;
  class PrecedencePredicate extends SemanticContext2 {
    static {
      __name(this, "PrecedencePredicate");
    }
    precedence;
    constructor(precedence) {
      super();
      this.precedence = precedence ?? 0;
    }
    evaluate(parser, outerContext) {
      return parser.precpred(outerContext, this.precedence);
    }
    evalPrecedence(parser, outerContext) {
      if (parser.precpred(outerContext ?? null, this.precedence)) {
        return SemanticContext2.NONE;
      }
      return null;
    }
    compareTo(other) {
      return this.precedence - other.precedence;
    }
    hashCode() {
      return 31 + this.precedence;
    }
    equals(other) {
      if (this === other) {
        return true;
      }
      return this.precedence === other.precedence;
    }
    toString() {
      return "{" + this.precedence + ">=prec}?";
    }
  }
  SemanticContext2.PrecedencePredicate = PrecedencePredicate;
  SemanticContext2.NONE = new Predicate();
})(SemanticContext || (SemanticContext = {}));

// src/atn/ATNConfig.ts
var ATNConfig = class _ATNConfig {
  static {
    __name(this, "ATNConfig");
  }
  /** The ATN state associated with this configuration */
  state;
  /** What alt (or lexer rule) is predicted by this configuration */
  alt;
  /**
   * We cannot execute predicates dependent upon local context unless
   * we know for sure we are in the correct context. Because there is
   * no way to do this efficiently, we simply cannot evaluate
   * dependent predicates unless we are in the rule that initially
   * invokes the ATN simulator.
   *
   * closure() tracks the depth of how far we dip into the outer context:
   * depth > 0.
   */
  reachesIntoOuterContext = false;
  // Not used in hash code.
  precedenceFilterSuppressed = false;
  // Not used in hash code.
  get semanticContext() {
    return this.#semanticContext;
  }
  cachedHashCode;
  // Shared with LexerATNConfig.
  /**
   * The syntactic context is a graph-structured stack node whose
   * path(s) to the root is the rule invocation(s)
   * chain used to arrive at the state.  The semantic context is
   * the tree of semantic predicates encountered before reaching
   * an ATN state
   */
  #context = null;
  #semanticContext;
  /** Never create config classes directly. Use the factory methods below. */
  constructor(c, state, context, semanticContext) {
    this.state = state;
    this.alt = c.alt;
    this.context = context;
    this.#semanticContext = semanticContext ?? SemanticContext.NONE;
    this.reachesIntoOuterContext = c.reachesIntoOuterContext;
    if (c.precedenceFilterSuppressed !== void 0) {
      this.precedenceFilterSuppressed = c.precedenceFilterSuppressed;
    }
  }
  static duplicate(old, semanticContext) {
    return new _ATNConfig(old, old.state, old.context, semanticContext ?? old.semanticContext);
  }
  static createWithContext(state, alt, context, semanticContext) {
    return new _ATNConfig({ alt }, state, context, semanticContext);
  }
  static createWithConfig(state, config, context) {
    return new _ATNConfig(config, state, context ?? config.context, config.semanticContext);
  }
  static createWithSemanticContext(state, c, semanticContext) {
    return new _ATNConfig(c, state ?? c.state, c.context, semanticContext);
  }
  hashCode() {
    if (this.cachedHashCode === void 0) {
      let hashCode = MurmurHash.initialize(7);
      hashCode = MurmurHash.update(hashCode, this.state.stateNumber);
      hashCode = MurmurHash.update(hashCode, this.alt);
      hashCode = MurmurHash.updateFromComparable(hashCode, this.#context);
      hashCode = MurmurHash.updateFromComparable(hashCode, this.semanticContext);
      hashCode = MurmurHash.finish(hashCode, 4);
      this.cachedHashCode = hashCode;
    }
    return this.cachedHashCode;
  }
  /**
   * The stack of invoking states leading to the rule/states associated
   * with this config.  We track only those contexts pushed during
   * execution of the ATN simulator.
   */
  get context() {
    return this.#context;
  }
  set context(context) {
    this.#context = context;
    this.cachedHashCode = void 0;
  }
  /**
   * An ATN configuration is equal to another if both have
   * the same state, they predict the same alternative, and
   * syntactic/semantic contexts are the same.
   */
  equals(other) {
    if (this === other) {
      return true;
    }
    return this.state.stateNumber === other.state.stateNumber && this.alt === other.alt && (this.context === null ? other.context === null : this.context.equals(other.context)) && this.semanticContext.equals(other.semanticContext) && this.precedenceFilterSuppressed === other.precedenceFilterSuppressed;
  }
  toString(_recog, showAlt = true) {
    let alt = "";
    if (showAlt) {
      alt = "," + this.alt;
    }
    return "(" + this.state + alt + (this.context !== null ? ",[" + this.context.toString() + "]" : "") + (this.semanticContext !== SemanticContext.NONE ? "," + this.semanticContext.toString() : "") + (this.reachesIntoOuterContext ? ",up=" + this.reachesIntoOuterContext : "") + ")";
  }
};

// src/atn/LL1Analyzer.ts
var LL1Analyzer = class _LL1Analyzer {
  static {
    __name(this, "LL1Analyzer");
  }
  /**
   * Special value added to the lookahead sets to indicate that we hit
   * a predicate during analysis if `seeThruPreds==false`.
   */
  static hitPredicate = Token.INVALID_TYPE;
  #atn;
  /**
   * Calculates the SLL(1) expected lookahead set for each outgoing transition
   * of an {@link ATNState}. The returned array has one element for each
   * outgoing transition in `s`. If the closure from transition
   * _i_ leads to a semantic predicate before matching a symbol, the
   * element at index *i* of the result will be `null`.
   *
   * @param s the ATN state
   * @returns the expected symbols for each outgoing transition of `s`.
   */
  getDecisionLookahead(s) {
    if (!s) {
      return void 0;
    }
    const count = s.transitions.length;
    const look = new Array(count);
    for (let alt = 0; alt < count; alt++) {
      const set = new IntervalSet();
      const lookBusy = new HashSet();
      this.doLook(
        s.transitions[alt].target,
        void 0,
        PredictionContext.EMPTY,
        set,
        lookBusy,
        new BitSet(),
        false,
        false
      );
      if (set.length > 0 && !set.contains(_LL1Analyzer.hitPredicate)) {
        look[alt] = set;
      }
    }
    return look;
  }
  /**
   * Compute set of tokens that can follow `s` in the ATN in the
   * specified `ctx`.
   *
   * If `ctx` is `null` and the end of the rule containing
   * `s` is reached, {@link Token//EPSILON} is added to the result set.
   * If `ctx` is not `null` and the end of the outermost rule is
   * reached, {@link Token//EOF} is added to the result set.
   *
   * @param atn the ATN
   * @param s the ATN state
   * @param stopState the ATN state to stop at. This can be a
   * {@link BlockEndState} to detect epsilon paths through a closure.
   * @param ctx the complete parser context, or `null` if the context
   * should be ignored
   *
   * @returns The set of tokens that can follow `s` in the ATN in the
   * specified `ctx`.
   */
  look(atn, s, stopState, ctx) {
    this.#atn = atn;
    const r = new IntervalSet();
    const lookContext = ctx ? predictionContextFromRuleContext(atn, ctx) : null;
    this.doLook(s, stopState, lookContext, r, new HashSet(), new BitSet(), true, true);
    return r;
  }
  /**
   * Compute set of tokens that can follow `s` in the ATN in the
   * specified `ctx`.
   *
   * If `ctx` is `null` and `stopState` or the end of the
   * rule containing `s` is reached, {@link Token//EPSILON} is added to
   * the result set. If `ctx` is not `null` and `addEOF` is
   * `true` and `stopState` or the end of the outermost rule is
   * reached, {@link Token//EOF} is added to the result set.
   *
   * @param s the ATN state.
   * @param stopState the ATN state to stop at. This can be a
   * {@link BlockEndState} to detect epsilon paths through a closure.
   * @param ctx The outer context, or `null` if the outer context should
   * not be used.
   * @param look The result lookahead set.
   * @param lookBusy A set used for preventing epsilon closures in the ATN
   * from causing a stack overflow. Outside code should pass
   * `new CustomizedSet<ATNConfig>` for this argument.
   * @param calledRuleStack A set used for preventing left recursion in the
   * ATN from causing a stack overflow. Outside code should pass
   * `new BitSet()` for this argument.
   * @param seeThruPreds `true` to true semantic predicates as
   * implicitly `true` and "see through them", otherwise `false`
   * to treat semantic predicates as opaque and add {@link hitPredicate} to the
   * result if one is encountered.
   * @param addEOF Add {@link Token//EOF} to the result if the end of the
   * outermost context is reached. This parameter has no effect if `ctx`
   * is `null`.
   */
  doLook(s, stopState, ctx, look, lookBusy, calledRuleStack, seeThruPreds, addEOF) {
    const c = ATNConfig.createWithContext(s, 0, ctx);
    if (lookBusy.get(c)) {
      return;
    }
    lookBusy.add(c);
    if (s === stopState) {
      if (!ctx) {
        look.addOne(Token.EPSILON);
        return;
      } else if (ctx.isEmpty() && addEOF) {
        look.addOne(Token.EOF);
        return;
      }
    }
    if (s.constructor.stateType === ATNState.RULE_STOP) {
      if (!ctx) {
        look.addOne(Token.EPSILON);
        return;
      } else if (ctx.isEmpty() && addEOF) {
        look.addOne(Token.EOF);
        return;
      }
      if (ctx !== PredictionContext.EMPTY) {
        const removed = calledRuleStack.get(s.ruleIndex);
        try {
          calledRuleStack.clear(s.ruleIndex);
          for (let i = 0; i < ctx.length; i++) {
            const returnState = this.#atn.states[ctx.getReturnState(i)];
            this.doLook(
              returnState,
              stopState,
              ctx.getParent(i),
              look,
              lookBusy,
              calledRuleStack,
              seeThruPreds,
              addEOF
            );
          }
        } finally {
          if (removed) {
            calledRuleStack.set(s.ruleIndex);
          }
        }
        return;
      }
    }
    for (const t of s.transitions) {
      switch (t.transitionType) {
        case Transition.RULE: {
          if (calledRuleStack.get(t.target.ruleIndex)) {
            continue;
          }
          const newContext = SingletonPredictionContext.create(
            ctx ?? void 0,
            t.followState.stateNumber
          );
          try {
            calledRuleStack.set(t.target.ruleIndex);
            this.doLook(
              t.target,
              stopState,
              newContext,
              look,
              lookBusy,
              calledRuleStack,
              seeThruPreds,
              addEOF
            );
          } finally {
            calledRuleStack.clear(t.target.ruleIndex);
          }
          break;
        }
        case Transition.PREDICATE:
        case Transition.PRECEDENCE: {
          if (seeThruPreds) {
            this.doLook(t.target, stopState, ctx, look, lookBusy, calledRuleStack, seeThruPreds, addEOF);
          } else {
            look.addOne(_LL1Analyzer.hitPredicate);
          }
          break;
        }
        case Transition.WILDCARD: {
          look.addRange(Token.MIN_USER_TOKEN_TYPE, this.#atn.maxTokenType);
          break;
        }
        default: {
          if (t.isEpsilon) {
            this.doLook(t.target, stopState, ctx, look, lookBusy, calledRuleStack, seeThruPreds, addEOF);
          } else {
            let set = t.label;
            if (set) {
              if (t instanceof NotSetTransition) {
                set = set.complement(Token.MIN_USER_TOKEN_TYPE, this.#atn.maxTokenType);
              }
              look.addSet(set);
            }
          }
          break;
        }
      }
    }
  }
};

// src/atn/ATN.ts
var ATN = class _ATN {
  static {
    __name(this, "ATN");
  }
  static INVALID_ALT_NUMBER = 0;
  /** Represents the type of recognizer an ATN applies to */
  static LEXER = 0;
  static PARSER = 1;
  /**
   * Used for runtime deserialization of ATNs from strings
   * The type of the ATN.
   */
  grammarType;
  /** The maximum value for any symbol recognized by a transition in the ATN. */
  maxTokenType;
  states = [];
  /**
   * Each subrule/rule is a decision point and we must track them so we
   * can go back later and build DFA predictors for them.  This includes
   * all the rules, subrules, optional blocks, ()+, ()* etc...
   */
  decisionToState = [];
  /** Maps from rule index to starting state number. */
  ruleToStartState = [];
  // Initialized by the ATN deserializer.
  /** Maps from rule index to stop state number. */
  ruleToStopState = [];
  // Initialized by the ATN deserializer.
  modeNameToStartState = /* @__PURE__ */ new Map();
  /**
   * For lexer ATNs, this maps the rule index to the resulting token type.
   * For parser ATNs, this maps the rule index to the generated bypass token
   * type if the {@link ATNDeserializationOptions//isGenerateRuleBypassTransitions}
   * deserialization option was specified; otherwise, this is `null`
   */
  ruleToTokenType = [];
  // Initialized by the ATN deserializer.
  /**
   * For lexer ATNs, this is an array of {@link LexerAction} objects which may
   * be referenced by action transitions in the ATN
   */
  lexerActions = [];
  modeToStartState = [];
  static #analyzer = new LL1Analyzer();
  constructor(grammarType, maxTokenType) {
    this.grammarType = grammarType;
    this.maxTokenType = maxTokenType;
  }
  /**
   * Compute the set of valid tokens that can occur starting in state `s`.
   * If `ctx` is null, the set of tokens will not include what can follow
   * the rule surrounding `s`. In other words, the set will be
   * restricted to tokens reachable staying within `s`'s rule.
   */
  nextTokens(atnState, ctx) {
    if (!ctx && atnState.nextTokenWithinRule) {
      return atnState.nextTokenWithinRule;
    }
    const next = _ATN.#analyzer.look(this, atnState, void 0, ctx);
    if (!ctx) {
      atnState.nextTokenWithinRule = next;
    }
    return next;
  }
  addState(state) {
    if (state) {
      state.stateNumber = this.states.length;
    }
    this.states.push(state);
  }
  removeState(state) {
    this.states[state.stateNumber] = null;
  }
  defineDecisionState(s) {
    this.decisionToState.push(s);
    s.decision = this.decisionToState.length - 1;
    return s.decision;
  }
  getDecisionState(decision) {
    if (this.decisionToState.length === 0) {
      return null;
    } else {
      return this.decisionToState[decision];
    }
  }
  getNumberOfDecisions() {
    return this.decisionToState.length;
  }
  /**
   * Computes the set of input symbols which could follow ATN state number
   * `stateNumber` in the specified full `context`. This method
   * considers the complete parser context, but does not evaluate semantic
   * predicates (i.e. all predicates encountered during the calculation are
   * assumed true). If a path in the ATN exists from the starting state to the
   * {@link RuleStopState} of the outermost context without matching any
   * symbols, {@link Token//EOF} is added to the returned set.
   *
   * If `context` is `null`, it is treated as
   * {@link ParserRuleContext//EMPTY}.
   *
   * @param stateNumber the ATN state number
   * @param context the full parse context
   *
   * @returns {IntervalSet} The set of potentially valid input symbols which could follow the
   * specified state in the specified context.
   *
   * @throws IllegalArgumentException if the ATN does not contain a state with
   * number `stateNumber`
   */
  getExpectedTokens(stateNumber, context) {
    if (stateNumber < 0 || stateNumber >= this.states.length) {
      throw new Error("Invalid state number.");
    }
    const s = this.states[stateNumber];
    let following = this.nextTokens(s);
    if (!following.contains(Token.EPSILON)) {
      return following;
    }
    let ctx = context;
    const expected = new IntervalSet();
    expected.addSet(following);
    expected.removeOne(Token.EPSILON);
    while (ctx !== null && ctx.invokingState >= 0 && following.contains(Token.EPSILON)) {
      const invokingState = this.states[ctx.invokingState];
      const rt = invokingState.transitions[0];
      following = this.nextTokens(rt.followState);
      expected.addSet(following);
      expected.removeOne(Token.EPSILON);
      ctx = ctx.parent;
    }
    if (following.contains(Token.EPSILON)) {
      expected.addOne(Token.EOF);
    }
    return expected;
  }
};

// src/atn/ATNConfigSet.ts
var KeyTypeEqualityComparer = class _KeyTypeEqualityComparer {
  static {
    __name(this, "KeyTypeEqualityComparer");
  }
  static instance = new _KeyTypeEqualityComparer();
  hashCode(config) {
    let hashCode = 7;
    hashCode = 31 * hashCode + config.state.stateNumber;
    hashCode = 31 * hashCode + config.alt;
    hashCode = 31 * hashCode + config.semanticContext.hashCode();
    return hashCode;
  }
  equals(a, b) {
    if (a === b) {
      return true;
    }
    return a.state.stateNumber === b.state.stateNumber && a.alt === b.alt && a.semanticContext.equals(b.semanticContext);
  }
};
var ATNConfigSet = class {
  static {
    __name(this, "ATNConfigSet");
  }
  /**
   * The reason that we need this is because we don't want the hash map to use
   * the standard hash code and equals. We need all configurations with the
   * same
   * `(s,i,_,semctx)` to be equal. Unfortunately, this key effectively
   * doubles
   * the number of objects associated with ATNConfigs. The other solution is
   * to
   * use a hash table that lets us specify the equals/hashCode operation.
   * All configs but hashed by (s, i, _, pi) not including context. Wiped out
   * when we go readonly as this set becomes a DFA state
   */
  configLookup = new HashSet(KeyTypeEqualityComparer.instance);
  // Track the elements as they are added to the set; supports get(i).
  configs = [];
  uniqueAlt = 0;
  /**
   * Used in parser and lexer. In lexer, it indicates we hit a pred
   * while computing a closure operation. Don't make a DFA state from this
   */
  hasSemanticContext = false;
  dipsIntoOuterContext = false;
  /**
   * Indicates that this configuration set is part of a full context
   * LL prediction. It will be used to determine how to merge $. With SLL
   * it's a wildcard whereas it is not for LL context merge
   */
  fullCtx = false;
  /**
   * Indicates that the set of configurations is read-only. Do not
   * allow any code to manipulate the set; DFA states will point at
   * the sets and they must not change. This does not protect the other
   * fields; in particular, conflictingAlts is set after
   * we've made this readonly
   */
  readOnly = false;
  conflictingAlts = null;
  /**
   * Tracks the first config that has a rule stop state. Avoids frequent linear search for that, when adding
   * a DFA state in the lexer ATN simulator.
   */
  firstStopState;
  #cachedHashCode = -1;
  constructor(fullCtxOrOldSet) {
    if (fullCtxOrOldSet !== void 0) {
      if (typeof fullCtxOrOldSet === "boolean") {
        this.fullCtx = fullCtxOrOldSet ?? true;
      } else {
        const old = fullCtxOrOldSet;
        this.addAll(old.configs);
        this.uniqueAlt = old.uniqueAlt;
        this.conflictingAlts = old.conflictingAlts;
        this.hasSemanticContext = old.hasSemanticContext;
        this.dipsIntoOuterContext = old.dipsIntoOuterContext;
      }
    }
  }
  [Symbol.iterator]() {
    return this.configs[Symbol.iterator]();
  }
  /**
   * Adding a new config means merging contexts with existing configs for
   * `(s, i, pi, _)`, where `s` is the {@link ATNConfig.state}, `i` is the {@link ATNConfig.alt}, and
   * `pi` is the {@link ATNConfig.semanticContext}. We use `(s,i,pi)` as key.
   *
   * This method updates {@link dipsIntoOuterContext} and
   * {@link hasSemanticContext} when necessary.
   */
  add(config, mergeCache = null) {
    if (this.readOnly) {
      throw new Error("This set is readonly");
    }
    if (!this.firstStopState && config.state.constructor.stateType === ATNState.RULE_STOP) {
      this.firstStopState = config;
    }
    this.hasSemanticContext ||= config.semanticContext !== SemanticContext.NONE;
    this.dipsIntoOuterContext ||= config.reachesIntoOuterContext;
    const existing = this.configLookup.getOrAdd(config);
    if (existing === config) {
      this.#cachedHashCode = -1;
      this.configs.push(config);
      return;
    }
    const rootIsWildcard = !this.fullCtx;
    const merged = merge(existing.context, config.context, rootIsWildcard, mergeCache);
    existing.reachesIntoOuterContext ||= config.reachesIntoOuterContext;
    existing.precedenceFilterSuppressed ||= config.precedenceFilterSuppressed;
    existing.context = merged;
  }
  /** Return a List holding list of configs */
  get elements() {
    return this.configs;
  }
  /**
   * Gets the complete set of represented alternatives for the configuration set.
   *
   * @returns the set of represented alternatives in this configuration set
   */
  getAlts() {
    const alts = new BitSet();
    for (const config of this.configs) {
      alts.set(config.alt);
    }
    return alts;
  }
  getPredicates() {
    const preds = [];
    for (const config of this.configs) {
      if (config.semanticContext !== SemanticContext.NONE) {
        preds.push(config.semanticContext);
      }
    }
    return preds;
  }
  getStates() {
    const states = new HashSet();
    for (const config of this.configs) {
      states.add(config.state);
    }
    return states;
  }
  optimizeConfigs(interpreter) {
    if (this.readOnly) {
      throw new Error("This set is readonly");
    }
    if (this.configLookup.size === 0) {
      return;
    }
    for (const config of this.configs) {
      config.context = interpreter.getCachedContext(config.context);
    }
  }
  addAll(coll) {
    for (const config of coll) {
      this.add(config);
    }
    return false;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (this.fullCtx === other.fullCtx && this.uniqueAlt === other.uniqueAlt && this.conflictingAlts === other.conflictingAlts && this.hasSemanticContext === other.hasSemanticContext && this.dipsIntoOuterContext === other.dipsIntoOuterContext && equalArrays(this.configs, other.configs)) {
      return true;
    }
    return false;
  }
  hashCode() {
    if (this.#cachedHashCode === -1) {
      this.#cachedHashCode = this.computeHashCode();
    }
    return this.#cachedHashCode;
  }
  get length() {
    return this.configs.length;
  }
  isEmpty() {
    return this.configs.length === 0;
  }
  contains(item) {
    if (this.configLookup === null) {
      throw new Error("This method is not implemented for readonly sets.");
    }
    return this.configLookup.contains(item);
  }
  containsFast(item) {
    if (this.configLookup === null) {
      throw new Error("This method is not implemented for readonly sets.");
    }
    return this.configLookup.contains(item);
  }
  clear() {
    if (this.readOnly) {
      throw new Error("This set is readonly");
    }
    this.configs = [];
    this.#cachedHashCode = -1;
    this.configLookup = new HashSet(KeyTypeEqualityComparer.instance);
  }
  setReadonly(readOnly) {
    this.readOnly = readOnly;
    if (readOnly) {
      this.configLookup = null;
    }
  }
  toString() {
    return arrayToString(this.configs) + (this.hasSemanticContext ? ",hasSemanticContext=" + this.hasSemanticContext : "") + (this.uniqueAlt !== ATN.INVALID_ALT_NUMBER ? ",uniqueAlt=" + this.uniqueAlt : "") + (this.conflictingAlts !== null ? ",conflictingAlts=" + this.conflictingAlts : "") + (this.dipsIntoOuterContext ? ",dipsIntoOuterContext" : "");
  }
  computeHashCode() {
    let hash = MurmurHash.initialize();
    this.configs.forEach((config) => {
      hash = MurmurHash.update(hash, config.hashCode());
    });
    hash = MurmurHash.finish(hash, this.configs.length);
    return hash;
  }
};

// src/atn/BasicState.ts
var BasicState = class extends ATNState {
  static {
    __name(this, "BasicState");
  }
  static stateType = ATNState.BASIC;
};

// src/atn/DecisionState.ts
var DecisionState = class extends ATNState {
  static {
    __name(this, "DecisionState");
  }
  decision = -1;
  nonGreedy = false;
};

// src/atn/BlockStartState.ts
var BlockStartState = class extends DecisionState {
  static {
    __name(this, "BlockStartState");
  }
  endState;
};

// src/atn/BlockEndState.ts
var BlockEndState = class extends ATNState {
  static {
    __name(this, "BlockEndState");
  }
  static stateType = ATNState.BLOCK_END;
  startState;
};

// src/atn/LoopEndState.ts
var LoopEndState = class extends ATNState {
  static {
    __name(this, "LoopEndState");
  }
  static stateType = ATNState.LOOP_END;
  loopBackState;
};

// src/atn/RuleStartState.ts
var RuleStartState = class extends ATNState {
  static {
    __name(this, "RuleStartState");
  }
  static stateType = ATNState.RULE_START;
  stopState;
  isLeftRecursiveRule = false;
};

// src/atn/RuleStopState.ts
var RuleStopState = class extends ATNState {
  static {
    __name(this, "RuleStopState");
  }
  static stateType = ATNState.RULE_STOP;
};

// src/atn/TokensStartState.ts
var TokensStartState = class extends DecisionState {
  static {
    __name(this, "TokensStartState");
  }
  static stateType = ATNState.TOKEN_START;
};

// src/atn/PlusLoopbackState.ts
var PlusLoopbackState = class extends DecisionState {
  static {
    __name(this, "PlusLoopbackState");
  }
  static stateType = ATNState.PLUS_LOOP_BACK;
};

// src/atn/StarLoopbackState.ts
var StarLoopbackState = class extends ATNState {
  static {
    __name(this, "StarLoopbackState");
  }
  static stateType = ATNState.STAR_LOOP_BACK;
};

// src/atn/StarLoopEntryState.ts
var StarLoopEntryState = class extends DecisionState {
  static {
    __name(this, "StarLoopEntryState");
  }
  static stateType = ATNState.STAR_LOOP_ENTRY;
  // This is always set during ATN deserialization
  loopBackState;
  /**
   * Indicates whether this state can benefit from a precedence DFA during SLL
   * decision making.
   *
   * This is a computed property that is calculated during ATN deserialization
   * and stored for use in {@link ParserATNSimulator} and
   * {@link ParserInterpreter}.
   *
   * @see `DFA.isPrecedenceDfa`
   */
  precedenceRuleDecision = false;
};

// src/atn/PlusBlockStartState.ts
var PlusBlockStartState = class extends BlockStartState {
  static {
    __name(this, "PlusBlockStartState");
  }
  static stateType = ATNState.PLUS_BLOCK_START;
  loopBackState;
};

// src/atn/StarBlockStartState.ts
var StarBlockStartState = class extends BlockStartState {
  static {
    __name(this, "StarBlockStartState");
  }
  static stateType = ATNState.STAR_BLOCK_START;
};

// src/atn/BasicBlockStartState.ts
var BasicBlockStartState = class extends BlockStartState {
  static {
    __name(this, "BasicBlockStartState");
  }
  static stateType = ATNState.BLOCK_START;
};

// src/atn/AtomTransition.ts
var AtomTransition = class extends Transition {
  static {
    __name(this, "AtomTransition");
  }
  /** The token type or character value; or, signifies special label. */
  labelValue;
  #label;
  constructor(target, label) {
    super(target);
    this.labelValue = label;
    this.#label = IntervalSet.of(label, label);
  }
  get label() {
    return this.#label;
  }
  get transitionType() {
    return Transition.ATOM;
  }
  matches(symbol) {
    return this.labelValue === symbol;
  }
  toString() {
    return this.labelValue.toString();
  }
};

// src/atn/RuleTransition.ts
var RuleTransition = class extends Transition {
  static {
    __name(this, "RuleTransition");
  }
  ruleIndex;
  precedence;
  followState;
  constructor(ruleStart, ruleIndex, precedence, followState) {
    super(ruleStart);
    this.ruleIndex = ruleIndex;
    this.precedence = precedence;
    this.followState = followState;
  }
  get isEpsilon() {
    return true;
  }
  get transitionType() {
    return Transition.RULE;
  }
  matches(_symbol, _minVocabSymbol, _maxVocabSymbol) {
    return false;
  }
};

// src/atn/RangeTransition.ts
var RangeTransition = class extends Transition {
  static {
    __name(this, "RangeTransition");
  }
  start;
  stop;
  #label = new IntervalSet();
  constructor(target, start, stop) {
    super(target);
    this.start = start;
    this.stop = stop;
    this.#label.addRange(start, stop);
  }
  get label() {
    return this.#label;
  }
  get transitionType() {
    return Transition.RANGE;
  }
  matches(symbol, _minVocabSymbol, _maxVocabSymbol) {
    return symbol >= this.start && symbol <= this.stop;
  }
  toString() {
    return "'" + String.fromCharCode(this.start) + "'..'" + String.fromCharCode(this.stop) + "'";
  }
};

// src/atn/ActionTransition.ts
var ActionTransition = class extends Transition {
  static {
    __name(this, "ActionTransition");
  }
  ruleIndex;
  actionIndex;
  isCtxDependent;
  constructor(target, ruleIndex, actionIndex, isCtxDependent) {
    super(target);
    this.ruleIndex = ruleIndex;
    this.actionIndex = actionIndex ?? -1;
    this.isCtxDependent = isCtxDependent ?? false;
  }
  get isEpsilon() {
    return true;
  }
  get transitionType() {
    return Transition.ACTION;
  }
  matches(_symbol, _minVocabSymbol, _maxVocabSymbol) {
    return false;
  }
  toString() {
    return "action_" + this.ruleIndex + ":" + this.actionIndex;
  }
};

// src/atn/EpsilonTransition.ts
var EpsilonTransition = class extends Transition {
  static {
    __name(this, "EpsilonTransition");
  }
  #outermostPrecedenceReturn;
  constructor(target, outermostPrecedenceReturn = -1) {
    super(target);
    this.#outermostPrecedenceReturn = outermostPrecedenceReturn;
  }
  /**
   * @returns the rule index of a precedence rule for which this transition is
   * returning from, where the precedence value is 0; otherwise, -1.
   *
   * @see ATNConfig.isPrecedenceFilterSuppressed()
   * @see ParserATNSimulator.applyPrecedenceFilter(ATNConfigSet)
   * @since 4.4.1
   */
  get outermostPrecedenceReturn() {
    return this.#outermostPrecedenceReturn;
  }
  get isEpsilon() {
    return true;
  }
  get transitionType() {
    return Transition.EPSILON;
  }
  matches() {
    return false;
  }
  toString() {
    return "epsilon";
  }
};

// src/atn/WildcardTransition.ts
var WildcardTransition = class extends Transition {
  static {
    __name(this, "WildcardTransition");
  }
  get transitionType() {
    return Transition.WILDCARD;
  }
  matches(symbol, minVocabSymbol, maxVocabSymbol) {
    return symbol >= minVocabSymbol && symbol <= maxVocabSymbol;
  }
  toString() {
    return ".";
  }
};

// src/atn/AbstractPredicateTransition.ts
var AbstractPredicateTransition = class extends Transition {
  static {
    __name(this, "AbstractPredicateTransition");
  }
  constructor(target) {
    super(target);
  }
};

// src/atn/PredicateTransition.ts
var PredicateTransition = class extends AbstractPredicateTransition {
  static {
    __name(this, "PredicateTransition");
  }
  ruleIndex;
  predIndex;
  isCtxDependent;
  // e.g., $i ref in pred
  constructor(target, ruleIndex, predIndex, isCtxDependent) {
    super(target);
    this.ruleIndex = ruleIndex;
    this.predIndex = predIndex;
    this.isCtxDependent = isCtxDependent;
  }
  get isEpsilon() {
    return true;
  }
  matches(_symbol, _minVocabSymbol, _maxVocabSymbol) {
    return false;
  }
  get transitionType() {
    return Transition.PREDICATE;
  }
  getPredicate() {
    return new SemanticContext.Predicate(this.ruleIndex, this.predIndex, this.isCtxDependent);
  }
  toString() {
    return "pred_" + this.ruleIndex + ":" + this.predIndex;
  }
};

// src/atn/PrecedencePredicateTransition.ts
var PrecedencePredicateTransition = class extends AbstractPredicateTransition {
  static {
    __name(this, "PrecedencePredicateTransition");
  }
  precedence;
  constructor(target, precedence) {
    super(target);
    this.precedence = precedence;
  }
  get isEpsilon() {
    return true;
  }
  matches(_symbol, _minVocabSymbol, _maxVocabSymbol) {
    return false;
  }
  getPredicate() {
    return new SemanticContext.PrecedencePredicate(this.precedence);
  }
  get transitionType() {
    return Transition.PRECEDENCE;
  }
  toString() {
    return this.precedence + " >= _p";
  }
};

// src/atn/LexerActionType.ts
var LexerActionType = {
  /** The type of a {@link LexerChannelAction} action. */
  CHANNEL: 0,
  /** The type of a {@link LexerCustomAction} action */
  CUSTOM: 1,
  /** The type of a {@link LexerModeAction} action. */
  MODE: 2,
  /** The type of a {@link LexerMoreAction} action. */
  MORE: 3,
  /** The type of a {@link LexerPopModeAction} action. */
  POP_MODE: 4,
  /** The type of a {@link LexerPushModeAction} action. */
  PUSH_MODE: 5,
  /** The type of a {@link LexerSkipAction} action. */
  SKIP: 6,
  /** The type of a {@link LexerTypeAction} action. */
  TYPE: 7
};

// src/atn/LexerSkipAction.ts
var LexerSkipAction = class _LexerSkipAction {
  static {
    __name(this, "LexerSkipAction");
  }
  /** Provides a singleton instance of this parameter-less lexer action. */
  static instance = new _LexerSkipAction();
  actionType;
  isPositionDependent = false;
  constructor() {
    this.actionType = LexerActionType.SKIP;
  }
  equals(obj) {
    return obj === this;
  }
  hashCode() {
    return LexerActionType.SKIP;
  }
  execute(lexer) {
    lexer.skip();
  }
  toString() {
    return "skip";
  }
};

// src/atn/LexerChannelAction.ts
var LexerChannelAction = class _LexerChannelAction {
  static {
    __name(this, "LexerChannelAction");
  }
  channel;
  actionType;
  isPositionDependent = false;
  #cachedHashCode;
  constructor(channel) {
    this.actionType = LexerActionType.CHANNEL;
    this.channel = channel;
  }
  /**
   * This action is implemented by calling {@link Lexer.setChannel} with the
   * value provided by {@link getChannel}.
   */
  execute(lexer) {
    lexer.channel = this.channel;
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      hash = MurmurHash.update(hash, this.actionType);
      hash = MurmurHash.update(hash, this.channel);
      this.#cachedHashCode = MurmurHash.finish(hash, 2);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _LexerChannelAction)) {
      return false;
    }
    return this.channel === other.channel;
  }
  toString() {
    return "channel(" + this.channel + ")";
  }
};

// src/atn/LexerCustomAction.ts
var LexerCustomAction = class _LexerCustomAction {
  static {
    __name(this, "LexerCustomAction");
  }
  ruleIndex;
  actionIndex;
  actionType;
  isPositionDependent = true;
  #cachedHashCode;
  /**
   * Constructs a custom lexer action with the specified rule and action indexes.
   *
   * @param ruleIndex The rule index to use for calls to {@link Recognizer.action}.
   * @param actionIndex The action index to use for calls to {@link Recognizer.action}.
   */
  constructor(ruleIndex, actionIndex) {
    this.actionType = LexerActionType.CUSTOM;
    this.ruleIndex = ruleIndex;
    this.actionIndex = actionIndex;
  }
  /**
   * Custom actions are implemented by calling {@link Lexer.action} with the
   * appropriate rule and action indexes.
   */
  execute(lexer) {
    lexer.action(null, this.ruleIndex, this.actionIndex);
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      hash = MurmurHash.update(hash, this.actionType);
      hash = MurmurHash.update(hash, this.ruleIndex);
      hash = MurmurHash.update(hash, this.actionIndex);
      this.#cachedHashCode = MurmurHash.finish(hash, 3);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _LexerCustomAction)) {
      return false;
    }
    return this.ruleIndex === other.ruleIndex && this.actionIndex === other.actionIndex;
  }
};

// src/atn/LexerMoreAction.ts
var LexerMoreAction = class _LexerMoreAction {
  static {
    __name(this, "LexerMoreAction");
  }
  static instance = new _LexerMoreAction();
  actionType;
  isPositionDependent = false;
  constructor() {
    this.actionType = LexerActionType.MORE;
  }
  equals(obj) {
    return obj === this;
  }
  hashCode() {
    return LexerActionType.MORE;
  }
  /**
   * This action is implemented by calling {@link Lexer.popMode}.
   */
  execute(lexer) {
    lexer.more();
  }
  toString() {
    return "more";
  }
};

// src/atn/LexerTypeAction.ts
var LexerTypeAction = class _LexerTypeAction {
  static {
    __name(this, "LexerTypeAction");
  }
  type;
  actionType;
  isPositionDependent = false;
  #cachedHashCode;
  constructor(type) {
    this.actionType = LexerActionType.TYPE;
    this.type = type;
  }
  execute(lexer) {
    lexer.type = this.type;
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      hash = MurmurHash.update(hash, this.actionType);
      hash = MurmurHash.update(hash, this.type);
      this.#cachedHashCode = MurmurHash.finish(hash, 2);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _LexerTypeAction)) {
      return false;
    }
    return this.type === other.type;
  }
  toString() {
    return "type(" + this.type + ")";
  }
};

// src/atn/LexerPushModeAction.ts
var LexerPushModeAction = class _LexerPushModeAction {
  static {
    __name(this, "LexerPushModeAction");
  }
  mode;
  actionType;
  isPositionDependent = false;
  #cachedHashCode;
  constructor(mode) {
    this.actionType = LexerActionType.PUSH_MODE;
    this.mode = mode;
  }
  /**
   * This action is implemented by calling {@link Lexer.pushMode} with the
   * value provided by {@link getMode}.
   */
  execute(lexer) {
    lexer.pushMode(this.mode);
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      hash = MurmurHash.update(hash, this.actionType);
      hash = MurmurHash.update(hash, this.mode);
      this.#cachedHashCode = MurmurHash.finish(hash, 2);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _LexerPushModeAction)) {
      return false;
    }
    return this.mode === other.mode;
  }
  toString() {
    return "pushMode(" + this.mode + ")";
  }
};

// src/atn/LexerPopModeAction.ts
var LexerPopModeAction = class _LexerPopModeAction {
  static {
    __name(this, "LexerPopModeAction");
  }
  static instance = new _LexerPopModeAction();
  actionType;
  isPositionDependent = false;
  constructor() {
    this.actionType = LexerActionType.POP_MODE;
  }
  equals(obj) {
    return obj === this;
  }
  hashCode() {
    return LexerActionType.POP_MODE;
  }
  /**
   * This action is implemented by calling {@link Lexer//popMode}.
   */
  execute(lexer) {
    lexer.popMode();
  }
  toString() {
    return "popMode";
  }
};

// src/atn/LexerModeAction.ts
var LexerModeAction = class _LexerModeAction {
  static {
    __name(this, "LexerModeAction");
  }
  mode;
  actionType;
  isPositionDependent = false;
  #cachedHashCode;
  constructor(mode) {
    this.actionType = LexerActionType.MODE;
    this.mode = mode;
  }
  /**
   * This action is implemented by calling {@link Lexer.mode} with the
   * value provided by {@link getMode}.
   */
  execute(lexer) {
    lexer.mode = this.mode;
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      hash = MurmurHash.update(hash, this.actionType);
      hash = MurmurHash.update(hash, this.mode);
      this.#cachedHashCode = MurmurHash.finish(hash, 2);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _LexerModeAction)) {
      return false;
    }
    return this.mode === other.mode;
  }
  toString() {
    return "mode(" + this.mode + ")";
  }
};

// src/atn/ATNDeserializer.ts
var ATNDeserializer = class _ATNDeserializer {
  static {
    __name(this, "ATNDeserializer");
  }
  static SERIALIZED_VERSION = 4;
  static stateTypeMapper = /* @__PURE__ */ new Map([
    [ATNState.INVALID_TYPE, void 0],
    [ATNState.BASIC, BasicState],
    [ATNState.RULE_START, RuleStartState],
    [ATNState.BLOCK_START, BasicBlockStartState],
    [ATNState.PLUS_BLOCK_START, PlusBlockStartState],
    [ATNState.STAR_BLOCK_START, StarBlockStartState],
    [ATNState.TOKEN_START, TokensStartState],
    [ATNState.RULE_STOP, RuleStopState],
    [ATNState.BLOCK_END, BlockEndState],
    [ATNState.STAR_LOOP_BACK, StarLoopbackState],
    [ATNState.STAR_LOOP_ENTRY, StarLoopEntryState],
    [ATNState.PLUS_LOOP_BACK, PlusLoopbackState],
    [ATNState.LOOP_END, LoopEndState]
  ]);
  static lexerActionFactoryMapper = /* @__PURE__ */ new Map([
    [LexerActionType.CHANNEL, (data1) => {
      return new LexerChannelAction(data1);
    }],
    [LexerActionType.CUSTOM, (data1, data2) => {
      return new LexerCustomAction(data1, data2);
    }],
    [LexerActionType.MODE, (data1) => {
      return new LexerModeAction(data1);
    }],
    [LexerActionType.MORE, () => {
      return LexerMoreAction.instance;
    }],
    [LexerActionType.POP_MODE, () => {
      return LexerPopModeAction.instance;
    }],
    [LexerActionType.PUSH_MODE, (data1) => {
      return new LexerPushModeAction(data1);
    }],
    [LexerActionType.SKIP, () => {
      return LexerSkipAction.instance;
    }],
    [LexerActionType.TYPE, (data1) => {
      return new LexerTypeAction(data1);
    }]
  ]);
  data = [];
  pos = 0;
  deserializationOptions;
  actionFactories;
  constructor(options) {
    if (!options) {
      options = { readOnly: false, verifyATN: true, generateRuleBypassTransitions: false };
    }
    this.deserializationOptions = options;
  }
  deserialize(data) {
    this.data = data;
    this.checkVersion();
    const atn = this.readATN();
    this.readStates(atn);
    this.readRules(atn);
    this.readModes(atn);
    const sets = [];
    this.readSets(atn, sets);
    this.readEdges(atn, sets);
    this.readDecisions(atn);
    this.readLexerActions(atn);
    this.markPrecedenceDecisions(atn);
    this.verifyATN(atn);
    if (this.deserializationOptions.generateRuleBypassTransitions && atn.grammarType === ATN.PARSER) {
      this.generateRuleBypassTransitions(atn);
      this.verifyATN(atn);
    }
    return atn;
  }
  checkVersion() {
    const version = this.data[this.pos++];
    if (version !== _ATNDeserializer.SERIALIZED_VERSION) {
      throw new Error("Could not deserialize ATN with version " + version + " (expected " + _ATNDeserializer.SERIALIZED_VERSION + ").");
    }
  }
  readATN() {
    const grammarType = this.data[this.pos++];
    const maxTokenType = this.data[this.pos++];
    return new ATN(grammarType, maxTokenType);
  }
  readStates(atn) {
    let j;
    let stateNumber;
    const loopBackStateNumbers = [];
    const endStateNumbers = [];
    const stateCount = this.data[this.pos++];
    for (let i = 0; i < stateCount; i++) {
      const stateType = this.data[this.pos++];
      if (stateType === ATNState.INVALID_TYPE) {
        atn.addState(null);
        continue;
      }
      const ruleIndex = this.data[this.pos++];
      const s = this.stateFactory(stateType, ruleIndex);
      if (stateType === ATNState.LOOP_END) {
        const loopBackStateNumber = this.data[this.pos++];
        loopBackStateNumbers.push([s, loopBackStateNumber]);
      } else if (s instanceof BlockStartState) {
        const endStateNumber = this.data[this.pos++];
        endStateNumbers.push([s, endStateNumber]);
      }
      atn.addState(s);
    }
    for (j = 0; j < loopBackStateNumbers.length; j++) {
      const pair = loopBackStateNumbers[j];
      pair[0].loopBackState = atn.states[pair[1]] ?? void 0;
    }
    for (j = 0; j < endStateNumbers.length; j++) {
      const pair = endStateNumbers[j];
      pair[0].endState = atn.states[pair[1]];
    }
    const numNonGreedyStates = this.data[this.pos++];
    for (j = 0; j < numNonGreedyStates; j++) {
      stateNumber = this.data[this.pos++];
      atn.states[stateNumber].nonGreedy = true;
    }
    const numPrecedenceStates = this.data[this.pos++];
    for (j = 0; j < numPrecedenceStates; j++) {
      stateNumber = this.data[this.pos++];
      atn.states[stateNumber].isLeftRecursiveRule = true;
    }
  }
  readRules(atn) {
    let i;
    const ruleCount = this.data[this.pos++];
    if (atn.grammarType === ATN.LEXER) {
      atn.ruleToTokenType = new Array(ruleCount);
      atn.ruleToTokenType.fill(0);
    }
    atn.ruleToStartState = new Array(ruleCount);
    atn.ruleToStartState.fill(null);
    for (i = 0; i < ruleCount; i++) {
      const s = this.data[this.pos++];
      atn.ruleToStartState[i] = atn.states[s];
      if (atn.grammarType === ATN.LEXER) {
        const tokenType = this.data[this.pos++];
        atn.ruleToTokenType[i] = tokenType;
      }
    }
    atn.ruleToStopState = new Array(ruleCount);
    atn.ruleToStopState.fill(null);
    for (i = 0; i < atn.states.length; i++) {
      const state = atn.states[i];
      if (!(state instanceof RuleStopState)) {
        continue;
      }
      atn.ruleToStopState[state.ruleIndex] = state;
      atn.ruleToStartState[state.ruleIndex].stopState = state;
    }
  }
  readModes(atn) {
    const modeCount = this.data[this.pos++];
    for (let i = 0; i < modeCount; i++) {
      const s = this.data[this.pos++];
      atn.modeToStartState.push(atn.states[s]);
    }
  }
  readSets(atn, sets) {
    const m2 = this.data[this.pos++];
    for (let i = 0; i < m2; i++) {
      const intervalSet = new IntervalSet();
      sets.push(intervalSet);
      const n2 = this.data[this.pos++];
      const containsEof = this.data[this.pos++];
      if (containsEof !== 0) {
        intervalSet.addOne(-1);
      }
      for (let j = 0; j < n2; j++) {
        const i1 = this.data[this.pos++];
        const i2 = this.data[this.pos++];
        intervalSet.addRange(i1, i2);
      }
    }
  }
  readEdges(atn, sets) {
    let i;
    let j;
    let state;
    let trans;
    let target;
    const edgeCount = this.data[this.pos++];
    for (i = 0; i < edgeCount; i++) {
      const src = this.data[this.pos++];
      const trg = this.data[this.pos++];
      const ttype = this.data[this.pos++];
      const arg1 = this.data[this.pos++];
      const arg2 = this.data[this.pos++];
      const arg3 = this.data[this.pos++];
      trans = this.edgeFactory(atn, ttype, trg, arg1, arg2, arg3, sets);
      const srcState = atn.states[src];
      srcState.addTransition(trans);
    }
    for (i = 0; i < atn.states.length; i++) {
      state = atn.states[i];
      for (j = 0; j < state.transitions.length; j++) {
        const t = state.transitions[j];
        if (!(t instanceof RuleTransition)) {
          continue;
        }
        let outermostPrecedenceReturn = -1;
        if (atn.ruleToStartState[t.target.ruleIndex].isLeftRecursiveRule) {
          if (t.precedence === 0) {
            outermostPrecedenceReturn = t.target.ruleIndex;
          }
        }
        trans = new EpsilonTransition(t.followState, outermostPrecedenceReturn);
        atn.ruleToStopState[t.target.ruleIndex].addTransition(trans);
      }
    }
    for (i = 0; i < atn.states.length; i++) {
      state = atn.states[i];
      if (state instanceof BlockStartState) {
        if (!state.endState) {
          throw new Error("IllegalState");
        }
        if (state.endState.startState) {
          throw new Error("IllegalState");
        }
        state.endState.startState = state;
      }
      if (state instanceof PlusLoopbackState) {
        for (j = 0; j < state.transitions.length; j++) {
          target = state.transitions[j].target;
          if (target instanceof PlusBlockStartState) {
            target.loopBackState = state;
          }
        }
      } else if (state instanceof StarLoopbackState) {
        for (j = 0; j < state.transitions.length; j++) {
          target = state.transitions[j].target;
          if (target instanceof StarLoopEntryState) {
            target.loopBackState = state;
          }
        }
      }
    }
  }
  readDecisions(atn) {
    const decisionCount = this.data[this.pos++];
    for (let i = 0; i < decisionCount; i++) {
      const s = this.data[this.pos++];
      const decState = atn.states[s];
      atn.decisionToState.push(decState);
      decState.decision = i;
    }
  }
  readLexerActions(atn) {
    if (atn.grammarType === ATN.LEXER) {
      const count = this.data[this.pos++];
      atn.lexerActions = [];
      for (let i = 0; i < count; i++) {
        const actionType = this.data[this.pos++];
        const data1 = this.data[this.pos++];
        const data2 = this.data[this.pos++];
        atn.lexerActions.push(this.lexerActionFactory(actionType, data1, data2));
      }
    }
  }
  generateRuleBypassTransitions(atn) {
    let i;
    const count = atn.ruleToStartState.length;
    for (i = 0; i < count; i++) {
      atn.ruleToTokenType[i] = atn.maxTokenType + i + 1;
    }
    for (i = 0; i < count; i++) {
      this.generateRuleBypassTransition(atn, i);
    }
  }
  generateRuleBypassTransition(atn, idx) {
    let i;
    let state;
    const bypassStart = new BasicBlockStartState();
    bypassStart.ruleIndex = idx;
    atn.addState(bypassStart);
    const bypassStop = new BlockEndState();
    bypassStop.ruleIndex = idx;
    atn.addState(bypassStop);
    bypassStart.endState = bypassStop;
    atn.defineDecisionState(bypassStart);
    bypassStop.startState = bypassStart;
    let excludeTransition = null;
    let endState = null;
    if (atn.ruleToStartState[idx].isLeftRecursiveRule) {
      endState = null;
      for (i = 0; i < atn.states.length; i++) {
        state = atn.states[i];
        if (this.stateIsEndStateFor(state, idx)) {
          endState = state;
          excludeTransition = state.loopBackState.transitions[0];
          break;
        }
      }
      if (excludeTransition === null) {
        throw new Error("Couldn't identify final state of the precedence rule prefix section.");
      }
    } else {
      endState = atn.ruleToStopState[idx];
    }
    for (i = 0; i < atn.states.length; i++) {
      state = atn.states[i];
      for (const transition of state.transitions) {
        if (transition === excludeTransition) {
          continue;
        }
        if (transition.target === endState) {
          transition.target = bypassStop;
        }
      }
    }
    const ruleToStartState = atn.ruleToStartState[idx];
    const count = ruleToStartState.transitions.length;
    while (count > 0) {
      bypassStart.addTransition(ruleToStartState.transitions[count - 1]);
      ruleToStartState.transitions = ruleToStartState.transitions.slice(-1);
    }
    atn.ruleToStartState[idx].addTransition(new EpsilonTransition(bypassStart));
    if (endState) {
      bypassStop.addTransition(new EpsilonTransition(endState));
    }
    const matchState = new BasicState();
    atn.addState(matchState);
    matchState.addTransition(new AtomTransition(bypassStop, atn.ruleToTokenType[idx]));
    bypassStart.addTransition(new EpsilonTransition(matchState));
  }
  stateIsEndStateFor(state, idx) {
    if (state.ruleIndex !== idx) {
      return null;
    }
    if (!(state instanceof StarLoopEntryState)) {
      return null;
    }
    const maybeLoopEndState = state.transitions[state.transitions.length - 1].target;
    if (!(maybeLoopEndState instanceof LoopEndState)) {
      return null;
    }
    if (maybeLoopEndState.epsilonOnlyTransitions && maybeLoopEndState.transitions[0].target instanceof RuleStopState) {
      return state;
    } else {
      return null;
    }
  }
  /**
   * Analyze the {@link StarLoopEntryState} states in the specified ATN to set
   * the {@link StarLoopEntryState} field to the correct value.
   *
   * @param atn The ATN.
   */
  markPrecedenceDecisions(atn) {
    for (const state of atn.states) {
      if (!(state instanceof StarLoopEntryState)) {
        continue;
      }
      if (atn.ruleToStartState[state.ruleIndex].isLeftRecursiveRule) {
        const maybeLoopEndState = state.transitions[state.transitions.length - 1].target;
        if (maybeLoopEndState instanceof LoopEndState) {
          if (maybeLoopEndState.epsilonOnlyTransitions && maybeLoopEndState.transitions[0].target instanceof RuleStopState) {
            state.precedenceRuleDecision = true;
          }
        }
      }
    }
  }
  verifyATN(atn) {
    if (!this.deserializationOptions.verifyATN) {
      return;
    }
    for (const state of atn.states) {
      if (state === null) {
        continue;
      }
      this.checkCondition(state.epsilonOnlyTransitions || state.transitions.length <= 1);
      if (state instanceof PlusBlockStartState) {
        this.checkCondition(state.loopBackState !== null);
      } else if (state instanceof StarLoopEntryState) {
        this.checkCondition(state.loopBackState !== null);
        this.checkCondition(state.transitions.length === 2);
        if (state.transitions[0].target instanceof StarBlockStartState) {
          this.checkCondition(state.transitions[1].target instanceof LoopEndState);
          this.checkCondition(!state.nonGreedy);
        } else if (state.transitions[0].target instanceof LoopEndState) {
          this.checkCondition(state.transitions[1].target instanceof StarBlockStartState);
          this.checkCondition(state.nonGreedy);
        } else {
          throw new Error("IllegalState");
        }
      } else if (state instanceof StarLoopbackState) {
        this.checkCondition(state.transitions.length === 1);
        this.checkCondition(state.transitions[0].target instanceof StarLoopEntryState);
      } else if (state instanceof LoopEndState) {
        this.checkCondition(state.loopBackState !== null);
      } else if (state instanceof RuleStartState) {
        this.checkCondition(state.stopState !== null);
      } else if (state instanceof BlockStartState) {
        this.checkCondition(state.endState !== null);
      } else if (state instanceof BlockEndState) {
        this.checkCondition(state.startState !== null);
      } else if (state instanceof DecisionState) {
        this.checkCondition(state.transitions.length <= 1 || state.decision >= 0);
      } else {
        this.checkCondition(state.transitions.length <= 1 || state instanceof RuleStopState);
      }
    }
  }
  checkCondition(condition, message) {
    if (!condition) {
      if (message === void 0 || message === null) {
        message = "IllegalState";
      }
      throw message;
    }
  }
  edgeFactory(atn, type, trg, arg1, arg2, arg3, sets) {
    const target = atn.states[trg];
    switch (type) {
      case Transition.EPSILON:
        return new EpsilonTransition(target);
      case Transition.RANGE:
        return arg3 !== 0 ? new RangeTransition(target, Token.EOF, arg2) : new RangeTransition(target, arg1, arg2);
      case Transition.RULE:
        return new RuleTransition(atn.states[arg1], arg2, arg3, target);
      case Transition.PREDICATE:
        return new PredicateTransition(target, arg1, arg2, arg3 !== 0);
      case Transition.PRECEDENCE:
        return new PrecedencePredicateTransition(target, arg1);
      case Transition.ATOM:
        return arg3 !== 0 ? new AtomTransition(target, Token.EOF) : new AtomTransition(target, arg1);
      case Transition.ACTION:
        return new ActionTransition(target, arg1, arg2, arg3 !== 0);
      case Transition.SET:
        return new SetTransition(target, sets[arg1]);
      case Transition.NOT_SET:
        return new NotSetTransition(target, sets[arg1]);
      case Transition.WILDCARD:
        return new WildcardTransition(target);
      default:
        throw new Error("The specified transition type: " + type + " is not valid.");
    }
  }
  stateFactory(type, ruleIndex) {
    const ctor = _ATNDeserializer.stateTypeMapper.get(type);
    if (!ctor) {
      throw new Error("The specified state type " + type + " is not valid.");
    }
    const s = new ctor();
    s.ruleIndex = ruleIndex;
    return s;
  }
  lexerActionFactory(type, data1, data2) {
    const factory = _ATNDeserializer.lexerActionFactoryMapper.get(type);
    if (!factory) {
      throw new Error("The specified lexer action type " + type + " is not valid.");
    }
    return factory(data1, data2);
  }
};

// src/misc/OrderedHashMap.ts
var OrderedHashMap = class _OrderedHashMap extends HashMap {
  static {
    __name(this, "OrderedHashMap");
  }
  #keys = [];
  clear() {
    super.clear();
    this.#keys = [];
  }
  get(key) {
    return super.get(key);
  }
  set(key, value) {
    const result = super.set(key, value);
    if (result === void 0) {
      this.#keys.push(key);
    }
    return result;
  }
  setIfAbsent(key, value) {
    const result = super.setIfAbsent(key, value);
    if (result === void 0) {
      this.#keys.push(key);
    }
    return result;
  }
  /**
   * @returns an iterable of the values in the map, in the order they were inserted.
   */
  values() {
    return {
      [Symbol.iterator]: () => {
        let index = 0;
        return {
          next: /* @__PURE__ */ __name(() => {
            if (index < this.#keys.length) {
              return {
                done: false,
                value: super.get(this.#keys[index++])
              };
            }
            return {
              done: true,
              value: void 0
            };
          }, "next")
        };
      }
    };
  }
  /**
   * @returns an iterable of the keys in the map, in the order they were inserted.
   */
  keys() {
    return this.#keys[Symbol.iterator]();
  }
  equals(o) {
    if (!(o instanceof _OrderedHashMap)) {
      return false;
    }
    return super.equals(o);
  }
};

// src/atn/ATNSerializer.ts
var ATNSerializer = class _ATNSerializer {
  static {
    __name(this, "ATNSerializer");
  }
  atn;
  data = [];
  // Note that we use a LinkedHashMap as a set to maintain insertion order while deduplicating entries with the
  // same key.
  sets = new OrderedHashMap(ObjectEqualityComparator.instance);
  nonGreedyStates = [];
  precedenceStates = [];
  constructor(atn) {
    this.atn = atn;
  }
  static getSerialized(atn) {
    return new _ATNSerializer(atn).serialize();
  }
  static serializeSets(data, sets) {
    data.push(sets.length);
    for (const set of sets) {
      const containsEof = set.contains(Token.EOF);
      const intervals = [...set];
      if (containsEof && intervals[0].stop === Token.EOF) {
        data.push(intervals.length - 1);
      } else {
        data.push(intervals.length);
      }
      data.push(containsEof ? 1 : 0);
      for (const interval of intervals) {
        if (interval.start === Token.EOF) {
          if (interval.stop === Token.EOF) {
            continue;
          } else {
            data.push(0);
          }
        } else {
          data.push(interval.start);
        }
        data.push(interval.stop);
      }
    }
  }
  /**
   * Serialize state descriptors, edge descriptors, and decision -> state map
   *  into list of ints.  Likely out of date, but keeping as it could be helpful:
   *
   *      SERIALIZED_VERSION
   *      UUID (2 longs)
   * 		grammar-type, (ANTLRParser.LEXER, ...)
   *  	max token type,
   *  	num states,
   *  	state-0-type ruleIndex, state-1-type ruleIndex, ... state-i-type ruleIndex optional-arg ...
   *  	num rules,
   *  	rule-1-start-state rule-1-args, rule-2-start-state  rule-2-args, ...
   *  	(args are token type,actionIndex in lexer else 0,0)
   *      num modes,
   *      mode-0-start-state, mode-1-start-state, ... (parser has 0 modes)
   *      num unicode-bmp-sets
   *      bmp-set-0-interval-count intervals, bmp-set-1-interval-count intervals, ...
   *      num unicode-smp-sets
   *      smp-set-0-interval-count intervals, smp-set-1-interval-count intervals, ...
   *	num total edges,
   *      src, trg, edge-type, edge arg1, optional edge arg2 (present always), ...
   *      num decisions,
   *      decision-0-start-state, decision-1-start-state, ...
   *
   *  Convenient to pack into unsigned shorts to make as Java string.
   */
  serialize() {
    this.addPreamble();
    const edgeCount = this.addEdges();
    this.addNonGreedyStates();
    this.addPrecedenceStates();
    this.addRuleStatesAndLexerTokenTypes();
    this.addModeStartStates();
    const setIndices = this.addSets();
    this.addEdges(edgeCount, setIndices);
    this.addDecisionStartStates();
    this.addLexerActions();
    return this.data;
  }
  addPreamble() {
    this.data.push(ATNDeserializer.SERIALIZED_VERSION);
    this.data.push(this.atn.grammarType);
    this.data.push(this.atn.maxTokenType);
  }
  addLexerActions() {
    if (this.atn.grammarType === ATN.LEXER) {
      this.data.push(this.atn.lexerActions.length);
      for (const action of this.atn.lexerActions) {
        this.data.push(action.actionType);
        switch (action.actionType) {
          case LexerActionType.CHANNEL: {
            const channel = action.channel;
            this.data.push(channel);
            this.data.push(0);
            break;
          }
          case LexerActionType.CUSTOM: {
            const ruleIndex = action.ruleIndex;
            const actionIndex = action.actionIndex;
            this.data.push(ruleIndex);
            this.data.push(actionIndex);
            break;
          }
          case LexerActionType.MODE: {
            const mode = action.mode;
            this.data.push(mode);
            this.data.push(0);
            break;
          }
          case LexerActionType.MORE: {
            this.data.push(0);
            this.data.push(0);
            break;
          }
          case LexerActionType.POP_MODE: {
            this.data.push(0);
            this.data.push(0);
            break;
          }
          case LexerActionType.PUSH_MODE: {
            const mode = action.mode;
            this.data.push(mode);
            this.data.push(0);
            break;
          }
          case LexerActionType.SKIP: {
            this.data.push(0);
            this.data.push(0);
            break;
          }
          case LexerActionType.TYPE: {
            const type = action.type;
            this.data.push(type);
            this.data.push(0);
            break;
          }
          default: {
            throw new Error(`The specified lexer action type ${action.actionType} is not valid.`);
          }
        }
      }
    }
  }
  addDecisionStartStates() {
    this.data.push(this.atn.decisionToState.length);
    for (const decStartState of this.atn.decisionToState) {
      this.data.push(decStartState.stateNumber);
    }
  }
  addEdges(...args) {
    switch (args.length) {
      case 0: {
        let edgeCount = 0;
        this.data.push(this.atn.states.length);
        let i = 0;
        for (const s of this.atn.states) {
          if (s === null) {
            this.data.push(ATNState.INVALID_TYPE);
            continue;
          }
          const stateType = s.constructor.stateType;
          if (s instanceof DecisionState && s.nonGreedy) {
            this.nonGreedyStates.push(s.stateNumber);
          }
          if (i === 910) {
            console.log("i", i);
          }
          if (s instanceof RuleStartState && s.isLeftRecursiveRule) {
            this.precedenceStates.push(s.stateNumber);
          }
          this.data.push(stateType);
          this.data.push(s.ruleIndex);
          if (s.constructor.stateType === ATNState.LOOP_END) {
            this.data.push(s.loopBackState.stateNumber);
          } else {
            if (s instanceof BlockStartState) {
              this.data.push(s.endState.stateNumber);
            }
          }
          if (s.constructor.stateType !== ATNState.RULE_STOP) {
            edgeCount += s.transitions.length;
          }
          for (const t of s.transitions) {
            const edgeType = t.transitionType;
            if (edgeType === Transition.SET || edgeType === Transition.NOT_SET) {
              const st = t;
              this.sets.set(st.set, true);
            }
          }
          ++i;
        }
        return edgeCount;
      }
      case 2: {
        const [edgeCount, setIndices] = args;
        this.data.push(edgeCount);
        for (const s of this.atn.states) {
          if (s === null) {
            continue;
          }
          if (s.constructor.stateType === ATNState.RULE_STOP) {
            continue;
          }
          for (const t of s.transitions) {
            if (this.atn.states[t.target.stateNumber] === null) {
              throw new Error("Cannot serialize a transition to a removed state.");
            }
            const src = s.stateNumber;
            let trg = t.target.stateNumber;
            const edgeType = t.transitionType;
            let arg1 = 0;
            let arg2 = 0;
            let arg3 = 0;
            switch (edgeType) {
              case Transition.RULE: {
                trg = t.followState.stateNumber;
                arg1 = t.target.stateNumber;
                arg2 = t.ruleIndex;
                arg3 = t.precedence;
                break;
              }
              case Transition.PRECEDENCE: {
                const ppt = t;
                arg1 = ppt.precedence;
                break;
              }
              case Transition.PREDICATE: {
                const pt = t;
                arg1 = pt.ruleIndex;
                arg2 = pt.predIndex;
                arg3 = pt.isCtxDependent ? 1 : 0;
                break;
              }
              case Transition.RANGE: {
                arg1 = t.start;
                arg2 = t.stop;
                if (arg1 === Token.EOF) {
                  arg1 = 0;
                  arg3 = 1;
                }
                break;
              }
              case Transition.ATOM: {
                arg1 = t.labelValue;
                if (arg1 === Token.EOF) {
                  arg1 = 0;
                  arg3 = 1;
                }
                break;
              }
              case Transition.ACTION: {
                const at = t;
                arg1 = at.ruleIndex;
                arg2 = at.actionIndex;
                arg3 = at.isCtxDependent ? 1 : 0;
                break;
              }
              case Transition.SET: {
                arg1 = setIndices.get(t.set);
                break;
              }
              case Transition.NOT_SET: {
                arg1 = setIndices.get(t.set);
                break;
              }
              case Transition.WILDCARD: {
                break;
              }
              default:
            }
            this.data.push(src);
            this.data.push(trg);
            this.data.push(edgeType);
            this.data.push(arg1);
            this.data.push(arg2);
            this.data.push(arg3);
          }
        }
        break;
      }
      default: {
        throw new Error("Invalid number of arguments");
      }
    }
  }
  addSets() {
    _ATNSerializer.serializeSets(this.data, [...this.sets.keys()]);
    const setIndices = new HashMap();
    let setIndex = 0;
    for (const s of this.sets.keys()) {
      setIndices.set(s, setIndex++);
    }
    return setIndices;
  }
  addModeStartStates() {
    const modeCount = this.atn.modeToStartState.length;
    this.data.push(modeCount);
    if (modeCount > 0) {
      for (const modeStartState of this.atn.modeToStartState) {
        this.data.push(modeStartState.stateNumber);
      }
    }
  }
  addRuleStatesAndLexerTokenTypes() {
    const ruleCount = this.atn.ruleToStartState.length;
    this.data.push(ruleCount);
    for (let r = 0; r < ruleCount; r++) {
      const ruleStartState = this.atn.ruleToStartState[r];
      this.data.push(ruleStartState.stateNumber);
      if (this.atn.grammarType === ATN.LEXER) {
        this.data.push(this.atn.ruleToTokenType[r]);
      }
    }
  }
  addPrecedenceStates() {
    this.data.push(this.precedenceStates.length);
    for (const state of this.precedenceStates) {
      this.data.push(state);
    }
  }
  addNonGreedyStates() {
    this.data.push(this.nonGreedyStates.length);
    for (const state of this.nonGreedyStates) {
      this.data.push(state);
    }
  }
};

// src/dfa/DFAState.ts
var DFAState = class _DFAState {
  static {
    __name(this, "DFAState");
  }
  stateNumber = -1;
  configs;
  /**
   * `edges[symbol]` points to target of symbol. Shift up by 1 so (-1) {@link Token.EOF} maps to `edges[0]`.
   */
  edges = [];
  isAcceptState = false;
  /**
   * If accept state, what ttype do we match or alt do we predict? This is set to {@link ATN.INVALID_ALT_NUMBER}
   * when {@link predicates} `!= null` or {@link requiresFullContext}.
   */
  prediction = -1;
  lexerActionExecutor = null;
  /**
   * Indicates that this state was created during SLL prediction that discovered a conflict between the configurations
   * in the state. Future {@link ParserATNSimulator.execATN} invocations immediately jumped doing
   * full context prediction if this field is true.
   */
  requiresFullContext = false;
  /**
   * During SLL parsing, this is a list of predicates associated with the ATN configurations of the DFA state.
   * When we have predicates, {@link requiresFullContext} is `false` since full context prediction evaluates
   * predicates on-the-fly. If this is not null, then {@link prediction} is `ATN.INVALID_ALT_NUMBER`.
   *
   * We only use these for non-{@link #requiresFullContext} but conflicting states. That
   * means we know from the context (it's $ or we don't dip into outer
   * context) that it's an ambiguity not a conflict.
   *
   * This list is computed by {@link ParserATNSimulator#predicateDFAState}.
   */
  predicates = null;
  constructor(configs) {
    if (configs) {
      this.configs = configs;
    }
  }
  static fromState(stateNumber) {
    const result = new _DFAState();
    result.stateNumber = stateNumber;
    return result;
  }
  static fromConfigs(configs) {
    return new _DFAState(configs);
  }
  static hashCode(state) {
    return state.configs.hashCode();
  }
  /**
   * Two {@link DFAState} instances are equal if their ATN configuration sets
   * are the same. This method is used to see if a state already exists.
   *
   * Because the number of alternatives and number of ATN configurations are
   * finite, there is a finite number of DFA states that can be processed.
   * This is necessary to show that the algorithm terminates.
   *
   * Cannot test the DFA state numbers here because in
   * {@link ParserATNSimulator#addDFAState} we need to know if any other state
   * exists that has this exact set of ATN configurations. The
   * {@link #stateNumber} is irrelevant.
   *
   * @param a The first {@link DFAState}.
   * @param b The second {@link DFAState}.
   *
   * @returns `true` if the two states are equal, otherwise `false`.
   */
  static equals(a, b) {
    return a.configs.equals(b.configs);
  }
  /**
   * @returns the set of all alts mentioned by all ATN configurations in this DFA state.
   */
  getAltSet() {
    const alts = /* @__PURE__ */ new Set();
    for (const config of this.configs) {
      alts.add(config.alt);
    }
    if (alts.size === 0) {
      return null;
    }
    return alts;
  }
  toString() {
    let buf = "";
    buf += this.stateNumber;
    buf += ":";
    buf += this.configs ? this.configs.toString() : "";
    if (this.isAcceptState) {
      buf += "=>";
      if (this.predicates) {
        buf += arrayToString(this.predicates);
      } else {
        buf += this.prediction;
      }
    }
    return buf.toString();
  }
};

// src/atn/ATNSimulator.ts
var ATNSimulator = class {
  static {
    __name(this, "ATNSimulator");
  }
  /** Must distinguish between missing edge and edge we know leads nowhere */
  static ERROR = DFAState.fromState(2147483647);
  atn;
  /**
   * The context cache maps all PredictionContext objects that are ==
   * to a single cached copy. This cache is shared across all contexts
   * in all ATNConfigs in all DFA states.  We rebuild each ATNConfigSet
   * to use only cached nodes/graphs in addDFAState(). We don't want to
   * fill this during closure() since there are lots of contexts that
   * pop up but are not used ever again. It also greatly slows down closure().
   *
   * This cache makes a huge difference in memory and a little bit in speed.
   * For the Java grammar on java.*, it dropped the memory requirements
   * at the end from 25M to 16M. We don't store any of the full context
   * graphs in the DFA because they are limited to local context only,
   * but apparently there's a lot of repetition there as well. We optimize
   * the config contexts before storing the config set in the DFA states
   * by literally rebuilding them with cached subgraphs only.
   *
   * I tried a cache for use during closure operations, that was
   * whacked after each adaptivePredict(). It cost a little bit
   * more time I think and doesn't save on the overall footprint
   * so it's not worth the complexity.
   */
  sharedContextCache;
  constructor(atn, sharedContextCache) {
    this.atn = atn;
    this.sharedContextCache = sharedContextCache;
    return this;
  }
  getCachedContext(context) {
    if (!this.sharedContextCache) {
      return context;
    }
    const visited = new HashMap(ObjectEqualityComparator.instance);
    return getCachedPredictionContext(context, this.sharedContextCache, visited);
  }
};

// src/atn/CodePointTransitions.ts
var CodePointTransitions = class _CodePointTransitions {
  static {
    __name(this, "CodePointTransitions");
  }
  /** @returns new {@link AtomTransition}     */
  static createWithCodePoint(target, codePoint) {
    return _CodePointTransitions.createWithCodePointRange(target, codePoint, codePoint);
  }
  /** @returns new {@link AtomTransition} if range represents one atom else {@link SetTransition}. */
  static createWithCodePointRange(target, codePointFrom, codePointTo) {
    return codePointFrom === codePointTo ? new AtomTransition(target, codePointFrom) : new RangeTransition(target, codePointFrom, codePointTo);
  }
};

// src/atn/DecisionInfo.ts
var DecisionInfo = class {
  static {
    __name(this, "DecisionInfo");
  }
  /**
   * The decision number, which is an index into {@link ATN.decisionToState}.
   */
  decision = 0;
  /**
   * The total number of times {@link ParserATNSimulator.adaptivePredict} was
   * invoked for this decision.
   */
  invocations = 0;
  /**
   * The total time spent in {@link ParserATNSimulator.adaptivePredict} for
   * this decision, in nanoseconds.
   *
   * The value of this field contains the sum of differential results obtained
   * by {@link process.hrtime()}, and is not adjusted to compensate for JIT
   * and/or garbage collection overhead. For best accuracy, use a modern Node.js
   * version that provides precise results from {@link process.hrtime()}, and
   * perform profiling in a separate process which is warmed up by parsing the
   * input prior to profiling.
   */
  timeInPrediction = 0;
  /**
   * The sum of the lookahead required for SLL prediction for this decision.
   * Note that SLL prediction is used before LL prediction for performance
   * reasons even when {@link PredictionMode.LL} or
   * {@link PredictionMode.LL_EXACT_AMBIG_DETECTION} is used.
   */
  sllTotalLook = 0;
  /**
   * Gets the minimum lookahead required for any single SLL prediction to
   * complete for this decision, by reaching a unique prediction, reaching an
   * SLL conflict state, or encountering a syntax error.
   */
  sllMinLook = 0;
  /**
   * Gets the maximum lookahead required for any single SLL prediction to
   * complete for this decision, by reaching a unique prediction, reaching an
   * SLL conflict state, or encountering a syntax error.
   */
  sllMaxLook = 0;
  /**
   * Gets the {@link LookaheadEventInfo} associated with the event where the
   * {@link sllMaxLook} value was set.
   */
  sllMaxLookEvent;
  /**
   * The sum of the lookahead required for LL prediction for this decision.
   * Note that LL prediction is only used when SLL prediction reaches a
   * conflict state.
   */
  llTotalLook = 0;
  /**
   * Gets the minimum lookahead required for any single LL prediction to
   * complete for this decision. An LL prediction completes when the algorithm
   * reaches a unique prediction, a conflict state (for
   * {@link PredictionMode.LL}, an ambiguity state (for
   * {@link PredictionMode.LL_EXACT_AMBIG_DETECTION}, or a syntax error.
   */
  llMinLook = 0;
  /**
   * Gets the maximum lookahead required for any single LL prediction to
   * complete for this decision. An LL prediction completes when the algorithm
   * reaches a unique prediction, a conflict state (for
   * {@link PredictionMode.LL}, an ambiguity state (for
   * {@link PredictionMode.LL_EXACT_AMBIG_DETECTION}, or a syntax error.
   */
  llMaxLook = 0;
  /**
   * Gets the {@link LookaheadEventInfo} associated with the event where the
   * {@link llMaxLook} value was set.
   */
  llMaxLookEvent;
  /**
   * A collection of {@link ContextSensitivityInfo} instances describing the
   * context sensitivities encountered during LL prediction for this decision.
   */
  contextSensitivities;
  /**
   * A collection of {@link DecisionEventInfo} instances describing the parse errors
   * identified during calls to {@link ParserATNSimulator.adaptivePredict} for
   * this decision.
   */
  errors;
  /**
   * A collection of {@link AmbiguityInfo} instances describing the
   * ambiguities encountered during LL prediction for this decision.
   */
  ambiguities;
  /**
   * A collection of {@link PredicateEvalInfo} instances describing the
   * results of evaluating individual predicates during prediction for this
   * decision.
   */
  predicateEvals;
  /**
   * The total number of ATN transitions required during SLL prediction for
   * this decision. An ATN transition is determined by the number of times the
   * DFA does not contain an edge that is required for prediction, resulting
   * in on-the-fly computation of that edge.
  /**
   * If DFA caching of SLL transitions is employed by the implementation, ATN
   * computation may cache the computed edge for efficient lookup during
   * future parsing of this decision. Otherwise, the SLL parsing algorithm
   * will use ATN transitions exclusively.
   *
   * @see sllDFATransitions
   * @see ParserATNSimulator.computeTargetState
   * @see LexerATNSimulator.computeTargetState
   */
  sllATNTransitions = 0;
  /**
   * The total number of DFA transitions required during SLL prediction for
   * this decision.
   *
   * If the ATN simulator implementation does not use DFA caching for SLL
   * transitions, this value will be 0.
   *
   * @see ParserATNSimulator.getExistingTargetState
   * @see LexerATNSimulator.getExistingTargetState
   */
  sllDFATransitions = 0;
  /**
   * Gets the total number of times SLL prediction completed in a conflict
   * state, resulting in fallback to LL prediction.
   *
   * Note that this value is not related to whether or not
   * {@link PredictionMode.SLL} may be used successfully with a particular
   * grammar. If the ambiguity resolution algorithm applied to the SLL
   * conflicts for this decision produce the same result as LL prediction for
   * this decision, {@link PredictionMode.SLL} would produce the same overall
   * parsing result as {@link PredictionMode.LL}.
   */
  llFallback = 0;
  /**
   * The total number of ATN transitions required during LL prediction for
   * this decision. An ATN transition is determined by the number of times the
   * DFA does not contain an edge that is required for prediction, resulting
   * in on-the-fly computation of that edge.
   *
   * If DFA caching of LL transitions is employed by the implementation, ATN
   * computation may cache the computed edge for efficient lookup during
   * future parsing of this decision. Otherwise, the LL parsing algorithm will
   * use ATN transitions exclusively.
   *
   * @see llDFATransitions
   * @see ParserATNSimulator.computeTargetState
   * @see LexerATNSimulator.computeTargetState
   */
  llATNTransitions = 0;
  /**
   * The total number of DFA transitions required during LL prediction for
   * this decision.
   *
   * If the ATN simulator implementation does not use DFA caching for LL
   * transitions, this value will be 0.
   *
   * @see ParserATNSimulator.getExistingTargetState
   * @see LexerATNSimulator.getExistingTargetState
   */
  llDFATransitions = 0;
  /**
   * Constructs a new instance of the {@link DecisionInfo} class to contain
   * statistics for a particular decision.
   *
   * @param decision The decision number
   */
  constructor(decision) {
    this.decision = decision;
    this.contextSensitivities = [];
    this.errors = [];
    this.ambiguities = [];
    this.predicateEvals = [];
  }
  toString1() {
    return "{decision=" + this.decision + ", contextSensitivities=" + this.contextSensitivities.length + ", errors=" + this.errors.length + ", ambiguities=" + this.ambiguities.length + ", sllLookahead=" + this.sllTotalLook + ", sllATNTransitions=" + this.sllATNTransitions + ", sllDFATransitions=" + this.sllDFATransitions + ", llFallback=" + this.llFallback + ", llLookahead=" + this.llTotalLook + ", llATNTransitions=" + this.llATNTransitions + "}";
  }
};

// src/atn/LexerATNConfig.ts
var LexerATNConfig = class _LexerATNConfig extends ATNConfig {
  static {
    __name(this, "LexerATNConfig");
  }
  /**
   * This is the backing field for {@link #getLexerActionExecutor}.
   */
  lexerActionExecutor;
  passedThroughNonGreedyDecision;
  constructor(config, state, context, lexerActionExecutor) {
    super(config, state, context ?? config.context, context ? SemanticContext.NONE : config.semanticContext);
    this.lexerActionExecutor = context ? lexerActionExecutor : config.lexerActionExecutor ?? null;
    this.passedThroughNonGreedyDecision = _LexerATNConfig.checkNonGreedyDecision(config, this.state);
    return this;
  }
  static createWithExecutor(config, state, lexerActionExecutor) {
    return new _LexerATNConfig(config, state, config.context, lexerActionExecutor);
  }
  static createWithConfig(state, config, context) {
    return new _LexerATNConfig(config, state, context ?? null, config.lexerActionExecutor);
  }
  static createWithContext(state, alt, context) {
    return new _LexerATNConfig({ alt }, state, context, null);
  }
  static checkNonGreedyDecision(source, target) {
    return source.passedThroughNonGreedyDecision || "nonGreedy" in target && target.nonGreedy;
  }
  hashCode() {
    if (this.cachedHashCode === void 0) {
      let hashCode = MurmurHash.initialize(7);
      hashCode = MurmurHash.update(hashCode, this.state.stateNumber);
      hashCode = MurmurHash.update(hashCode, this.alt);
      hashCode = MurmurHash.updateFromComparable(hashCode, this.context);
      hashCode = MurmurHash.updateFromComparable(hashCode, this.semanticContext);
      hashCode = MurmurHash.update(hashCode, this.passedThroughNonGreedyDecision ? 1 : 0);
      hashCode = MurmurHash.updateFromComparable(hashCode, this.lexerActionExecutor);
      hashCode = MurmurHash.finish(hashCode, 6);
      this.cachedHashCode = hashCode;
    }
    return this.cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    return this.passedThroughNonGreedyDecision === other.passedThroughNonGreedyDecision && (this.lexerActionExecutor && other.lexerActionExecutor ? this.lexerActionExecutor.equals(other.lexerActionExecutor) : !other.lexerActionExecutor) && super.equals(other);
  }
};

// src/BaseErrorListener.ts
var BaseErrorListener = class {
  static {
    __name(this, "BaseErrorListener");
  }
  syntaxError(recognizer, offendingSymbol, line, column, msg, e) {
  }
  reportAmbiguity(recognizer, dfa, startIndex, stopIndex, exact, ambigAlts, configs) {
  }
  reportAttemptingFullContext(recognizer, dfa, startIndex, stopIndex, conflictingAlts, configs) {
  }
  reportContextSensitivity(recognizer, dfa, startIndex, stopIndex, prediction, configs) {
  }
};

// src/ConsoleErrorListener.ts
var ConsoleErrorListener = class _ConsoleErrorListener extends BaseErrorListener {
  static {
    __name(this, "ConsoleErrorListener");
  }
  /**
   * Provides a default instance of {@link ConsoleErrorListener}.
   */
  static instance = new _ConsoleErrorListener();
  syntaxError(recognizer, offendingSymbol, line, charPositionInLine, msg, _e) {
    console.error("line " + line + ":" + charPositionInLine + " " + msg);
  }
};

// src/ProxyErrorListener.ts
var ProxyErrorListener = class extends BaseErrorListener {
  constructor(delegates) {
    super();
    this.delegates = delegates;
    return this;
  }
  static {
    __name(this, "ProxyErrorListener");
  }
  syntaxError(recognizer, offendingSymbol, line, column, msg, e) {
    this.delegates.forEach((d) => {
      d.syntaxError(recognizer, offendingSymbol, line, column, msg, e);
    });
  }
  reportAmbiguity(recognizer, dfa, startIndex, stopIndex, exact, ambigAlts, configs) {
    this.delegates.forEach((d) => {
      d.reportAmbiguity(recognizer, dfa, startIndex, stopIndex, exact, ambigAlts, configs);
    });
  }
  reportAttemptingFullContext(recognizer, dfa, startIndex, stopIndex, conflictingAlts, configs) {
    this.delegates.forEach((d) => {
      d.reportAttemptingFullContext(recognizer, dfa, startIndex, stopIndex, conflictingAlts, configs);
    });
  }
  reportContextSensitivity(recognizer, dfa, startIndex, stopIndex, prediction, configs) {
    this.delegates.forEach((d) => {
      d.reportContextSensitivity(recognizer, dfa, startIndex, stopIndex, prediction, configs);
    });
  }
};

// src/Recognizer.ts
var Recognizer = class _Recognizer {
  static {
    __name(this, "Recognizer");
  }
  static EOF = -1;
  static tokenTypeMapCache = /* @__PURE__ */ new Map();
  static ruleIndexMapCache = /* @__PURE__ */ new Map();
  interpreter;
  #listeners = [ConsoleErrorListener.instance];
  #stateNumber = -1;
  checkVersion(toolVersion) {
    const runtimeVersion = "4.13.1";
    if (runtimeVersion !== toolVersion) {
      console.error("ANTLR runtime and generated code versions disagree: " + runtimeVersion + "!=" + toolVersion);
    }
  }
  addErrorListener(listener) {
    this.#listeners.push(listener);
  }
  removeErrorListeners() {
    this.#listeners = [];
  }
  removeErrorListener(listener) {
    for (let i = 0; i < this.#listeners.length; i++) {
      if (this.#listeners[i] === listener) {
        this.#listeners.splice(i, 1);
        return;
      }
    }
  }
  getErrorListeners() {
    return this.#listeners;
  }
  getTokenTypeMap() {
    const vocabulary = this.vocabulary;
    let result = _Recognizer.tokenTypeMapCache.get(vocabulary);
    if (!result) {
      result = /* @__PURE__ */ new Map();
      for (let i = 0; i <= this.atn.maxTokenType; i++) {
        const literalName = vocabulary.getLiteralName(i);
        if (literalName) {
          result.set(literalName, i);
        }
        const symbolicName = vocabulary.getSymbolicName(i);
        if (symbolicName) {
          result.set(symbolicName, i);
        }
      }
      result.set("EOF", Token.EOF);
      _Recognizer.tokenTypeMapCache.set(vocabulary, result);
    }
    return result;
  }
  /**
   * Get a map from rule names to rule indexes.
   * Used for XPath and tree pattern compilation.
   */
  getRuleIndexMap() {
    const ruleNames = this.ruleNames;
    let result = _Recognizer.ruleIndexMapCache.get(ruleNames);
    if (!result) {
      result = /* @__PURE__ */ new Map();
      ruleNames.forEach((ruleName, idx) => {
        return result.set(ruleName, idx);
      });
      _Recognizer.ruleIndexMapCache.set(ruleNames, result);
    }
    return result;
  }
  getTokenType(tokenName) {
    const ttype = this.getTokenTypeMap().get(tokenName);
    if (ttype) {
      return ttype;
    }
    return Token.INVALID_TYPE;
  }
  /** What is the error header, normally line/character position information? */
  getErrorHeader(e) {
    const line = e.offendingToken?.line;
    const column = e.offendingToken?.column;
    return "line " + line + ":" + column;
  }
  get errorListenerDispatch() {
    return new ProxyErrorListener(this.#listeners);
  }
  /**
   * subclass needs to override these if there are semantic predicates or actions
   * that the ATN interp needs to execute
   */
  sempred(_localctx, _ruleIndex, _actionIndex) {
    return true;
  }
  // TODO: make localCtx an optional parameter, not optional null.
  precpred(_localctx, _precedence) {
    return true;
  }
  action(_localctx, _ruleIndex, _actionIndex) {
  }
  get atn() {
    return this.interpreter.atn;
  }
  get state() {
    return this.#stateNumber;
  }
  set state(state) {
    this.#stateNumber = state;
  }
  getSerializedATN() {
    throw new Error("there is no serialized ATN");
  }
  getParseInfo() {
    return void 0;
  }
};

// src/CommonTokenFactory.ts
var CommonTokenFactory = class _CommonTokenFactory {
  static {
    __name(this, "CommonTokenFactory");
  }
  /**
   * The default {@link CommonTokenFactory} instance.
   *
   *
   * This token factory does not explicitly copy token text when constructing
   * tokens.
   */
  static DEFAULT = new _CommonTokenFactory();
  /**
   * Indicates whether {@link CommonToken.setText} should be called after
   * constructing tokens to explicitly set the text. This is useful for cases
   * where the input stream might not be able to provide arbitrary substrings
   * of text from the input after the lexer creates a token (e.g. the
   * implementation of {@link CharStream.getText} in
   * {@link UnbufferedCharStream} throws an
   * {@link UnsupportedOperationException}). Explicitly setting the token text
   * allows {@link Token.getText} to be called at any time regardless of the
   * input stream implementation.
   *
   *
   * The default value is `false` to avoid the performance and memory
   * overhead of copying text for every token unless explicitly requested.
   */
  copyText = false;
  constructor(copyText) {
    this.copyText = copyText ?? false;
  }
  create(source, type, text, channel, start, stop, line, column) {
    const t = CommonToken.fromSource(source, type, channel, start, stop);
    t.line = line;
    t.column = column;
    if (text) {
      t.text = text;
    } else if (this.copyText && source[1] !== null) {
      t.text = source[1].getTextFromRange(start, stop);
    }
    return t;
  }
};

// src/RecognitionException.ts
var RecognitionException = class _RecognitionException extends Error {
  static {
    __name(this, "RecognitionException");
  }
  ctx;
  /**
   * The current {@link Token} when an error occurred. Since not all streams
   * support accessing symbols by index, we have to track the {@link Token}
   * instance itself
   */
  offendingToken = null;
  /**
   * Get the ATN state number the parser was in at the time the error
   * occurred. For {@link NoViableAltException} and
   * {@link LexerNoViableAltException} exceptions, this is the
   * {@link DecisionState} number. For others, it is the state whose outgoing
   * edge we couldn't match.
   */
  offendingState = -1;
  recognizer;
  input;
  constructor(params) {
    super(params.message);
    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, _RecognitionException);
    }
    this.message = params.message;
    this.recognizer = params.recognizer;
    this.input = params.input;
    this.ctx = params.ctx;
    if (this.recognizer !== null) {
      this.offendingState = this.recognizer.state;
    }
  }
  /**
   * Gets the set of input symbols which could potentially follow the
   * previously matched symbol at the time this exception was thrown.
   *
   * If the set of expected tokens is not known and could not be computed,
   * this method returns `null`.
   *
   * @returns The set of token types that could potentially follow the current
   * state in the ATN, or `null` if the information is not available.
   */
  getExpectedTokens() {
    if (this.recognizer !== null && this.ctx !== null) {
      return this.recognizer.atn.getExpectedTokens(this.offendingState, this.ctx);
    } else {
      return null;
    }
  }
  // If the state number is not known, this method returns -1.
  toString() {
    return this.message;
  }
};

// src/LexerNoViableAltException.ts
var LexerNoViableAltException = class extends RecognitionException {
  static {
    __name(this, "LexerNoViableAltException");
  }
  startIndex;
  deadEndConfigs;
  constructor(lexer, input, startIndex, deadEndConfigs) {
    super({ message: "", recognizer: lexer, input, ctx: null });
    this.startIndex = startIndex;
    this.deadEndConfigs = deadEndConfigs;
  }
  toString() {
    let symbol = "";
    if (this.input && this.startIndex >= 0 && this.startIndex < this.input.size) {
      symbol = this.input.getTextFromRange(this.startIndex, this.startIndex);
    }
    return "LexerNoViableAltException" + symbol;
  }
};

// src/Lexer.ts
var Lexer = class _Lexer extends Recognizer {
  static {
    __name(this, "Lexer");
  }
  static DEFAULT_MODE = 0;
  static MORE = -2;
  static SKIP = -3;
  static DEFAULT_TOKEN_CHANNEL = Token.DEFAULT_CHANNEL;
  static HIDDEN = Token.HIDDEN_CHANNEL;
  options = {
    minDFAEdge: 0,
    maxDFAEdge: 256,
    minCodePoint: 0,
    maxCodePoint: 1114111
  };
  /**
   * What character index in the stream did the current token start at?
   *  Needed, for example, to get the text for current token.  Set at
   *  the start of nextToken.
   */
  tokenStartCharIndex = -1;
  /** The channel number for the current token */
  channel = 0;
  /** The token type for the current token */
  type = 0;
  mode = _Lexer.DEFAULT_MODE;
  /** The start column of the current token (the one that was last read by `nextToken`). */
  currentTokenColumn = 0;
  /**
   * The line on which the first character of the current token (the one that was last read by `nextToken`) resides.
   */
  currentTokenStartLine = 0;
  #input;
  /**
   * The goal of all lexer rules/methods is to create a token object.
   *  This is an instance variable as multiple rules may collaborate to
   *  create a single token.  nextToken will return this object after
   *  matching lexer rule(s).  If you subclass to allow multiple token
   *  emissions, then set this to the last token to be matched or
   *  something non-null so that the auto token emit mechanism will not
   *  emit another token.
   */
  #token = null;
  /**
   * Once we see EOF on char stream, next token will be EOF.
   * If you have DONE : EOF ; then you see DONE EOF.
   */
  #hitEOF = false;
  #modeStack = [];
  /**
   * The text to be used for the next token. If this is not null, then the text
   * for the next token is fixed and is not subject to change in the normal
   * workflow of the lexer.
   */
  #text;
  #factory;
  constructor(input, options) {
    super();
    this.options = { ...this.options, ...options };
    this.#input = input;
    this.#factory = CommonTokenFactory.DEFAULT;
  }
  reset(seekBack = true) {
    if (seekBack) {
      this.#input.seek(0);
    }
    this.#token = null;
    this.type = Token.INVALID_TYPE;
    this.channel = Token.DEFAULT_CHANNEL;
    this.tokenStartCharIndex = -1;
    this.currentTokenColumn = -1;
    this.currentTokenStartLine = -1;
    this.#text = void 0;
    this.#hitEOF = false;
    this.mode = _Lexer.DEFAULT_MODE;
    this.#modeStack = [];
    this.interpreter.reset();
  }
  /** @returns a token from this source; i.e., match a token on the char stream. */
  nextToken() {
    if (this.#input === null) {
      throw new Error("nextToken requires a non-null input stream.");
    }
    const tokenStartMarker = this.#input.mark();
    try {
      while (true) {
        if (this.#hitEOF) {
          this.emitEOF();
          return this.#token;
        }
        this.#token = null;
        this.channel = Token.DEFAULT_CHANNEL;
        this.tokenStartCharIndex = this.#input.index;
        this.currentTokenColumn = this.interpreter.column;
        this.currentTokenStartLine = this.interpreter.line;
        this.#text = void 0;
        let continueOuter = false;
        while (true) {
          this.type = Token.INVALID_TYPE;
          let ttype = _Lexer.SKIP;
          try {
            ttype = this.interpreter.match(this.#input, this.mode);
          } catch (e) {
            if (e instanceof LexerNoViableAltException) {
              this.notifyListeners(e);
              this.recover(e);
            } else {
              throw e;
            }
          }
          if (this.#input.LA(1) === Token.EOF) {
            this.#hitEOF = true;
          }
          if (this.type === Token.INVALID_TYPE) {
            this.type = ttype;
          }
          if (this.type === _Lexer.SKIP) {
            continueOuter = true;
            break;
          }
          if (this.type !== _Lexer.MORE) {
            break;
          }
        }
        if (continueOuter) {
          continue;
        }
        if (this.#token === null) {
          this.emit();
        }
        return this.#token;
      }
    } finally {
      this.#input.release(tokenStartMarker);
    }
  }
  /**
   * Instruct the lexer to skip creating a token for current lexer rule
   * and look for another token. nextToken() knows to keep looking when
   * a lexer rule finishes with token set to SKIP_TOKEN. Recall that
   * if token==null at end of any token rule, it creates one for you
   * and emits it.
   */
  skip() {
    this.type = _Lexer.SKIP;
  }
  more() {
    this.type = _Lexer.MORE;
  }
  pushMode(m2) {
    if (LexerATNSimulator.debug) {
      console.log("pushMode " + m2);
    }
    this.#modeStack.push(this.mode);
    this.mode = m2;
  }
  popMode() {
    if (this.#modeStack.length === 0) {
      throw new Error("Empty Stack");
    }
    if (LexerATNSimulator.debug) {
      console.log("popMode back to " + this.#modeStack.slice(0, -1));
    }
    this.mode = this.#modeStack.pop();
    return this.mode;
  }
  get modeStack() {
    return this.#modeStack;
  }
  /**
   * By default does not support multiple emits per nextToken invocation
   * for efficiency reasons. Subclass and override this method, nextToken,
   * and getToken (to push tokens into a list and pull from that list
   * rather than a single variable as this implementation does).
   */
  emitToken(token) {
    this.#token = token;
  }
  /**
   * The standard method called to automatically emit a token at the
   * outermost lexical rule. The token object should point into the
   * char buffer start..stop. If there is a text override in 'text',
   * use that to set the token's text. Override this method to emit
   * custom Token objects or provide a new factory.
   */
  emit() {
    const t = this.#factory.create(
      [this, this.#input],
      this.type,
      this.#text,
      this.channel,
      this.tokenStartCharIndex,
      this.getCharIndex() - 1,
      this.currentTokenStartLine,
      this.currentTokenColumn
    );
    this.emitToken(t);
    return t;
  }
  emitEOF() {
    const eof = this.#factory.create(
      [this, this.#input],
      Token.EOF,
      void 0,
      Token.DEFAULT_CHANNEL,
      this.#input.index,
      this.#input.index - 1,
      this.line,
      this.column
    );
    this.emitToken(eof);
    return eof;
  }
  /** What is the index of the current character of lookahead? */
  getCharIndex() {
    return this.#input.index;
  }
  /**
   * Return a list of all Token objects in input char stream.
   * Forces load of all tokens. Does not include EOF token.
   */
  getAllTokens() {
    const tokens = [];
    let t = this.nextToken();
    while (t.type !== Token.EOF) {
      tokens.push(t);
      t = this.nextToken();
    }
    return tokens;
  }
  notifyListeners(e) {
    const start = this.tokenStartCharIndex;
    const stop = this.#input.index;
    const text = this.#input.getTextFromRange(start, stop);
    const msg = "token recognition error at: '" + this.getErrorDisplay(text) + "'";
    this.errorListenerDispatch.syntaxError(this, null, this.currentTokenStartLine, this.currentTokenColumn, msg, e);
  }
  getErrorDisplay(s) {
    return s;
  }
  getErrorDisplayForChar(c) {
    if (c.charCodeAt(0) === Token.EOF) {
      return "<EOF>";
    }
    if (c === "\n") {
      return "\\n";
    }
    if (c === "	") {
      return "\\t";
    }
    if (c === "\r") {
      return "\\r";
    }
    return c;
  }
  getCharErrorDisplay(c) {
    return "'" + this.getErrorDisplayForChar(c) + "'";
  }
  /**
   * Lexers can normally match any char in it's vocabulary after matching
   * a token, so do the easy thing and just kill a character and hope
   * it all works out. You can instead use the rule invocation stack
   * to do sophisticated error recovery if you are in a fragment rule.
   */
  recover(re) {
    if (this.#input.LA(1) !== Token.EOF) {
      if (re instanceof LexerNoViableAltException) {
        this.interpreter.consume(this.#input);
      } else {
        this.#input.consume();
      }
    }
  }
  get inputStream() {
    return this.#input;
  }
  set inputStream(input) {
    this.reset(false);
    this.#input = input;
  }
  set tokenFactory(factory) {
    this.#factory = factory;
  }
  get tokenFactory() {
    return this.#factory;
  }
  get sourceName() {
    return this.#input.getSourceName();
  }
  get line() {
    return this.interpreter.line;
  }
  set line(line) {
    this.interpreter.line = line;
  }
  get column() {
    return this.interpreter.column;
  }
  set column(column) {
    this.interpreter.column = column;
  }
  get text() {
    if (this.#text) {
      return this.#text;
    } else {
      return this.interpreter.getText(this.#input);
    }
  }
  set text(text) {
    this.#text = text;
  }
};

// src/misc/OrderedHashSet.ts
var OrderedHashSet = class _OrderedHashSet extends HashSet {
  static {
    __name(this, "OrderedHashSet");
  }
  #elements = [];
  getOrAdd(o) {
    const oldSize = this.size;
    const result = super.getOrAdd(o);
    if (this.size > oldSize) {
      this.#elements.push(o);
    }
    return result;
  }
  equals(o) {
    if (!(o instanceof _OrderedHashSet)) {
      return false;
    }
    return super.equals(o);
  }
  clear() {
    super.clear();
    this.#elements = [];
  }
  *[Symbol.iterator]() {
    yield* this.#elements;
  }
  toArray() {
    return this.#elements.slice(0);
  }
};

// src/atn/OrderedATNConfigSet.ts
var OrderedATNConfigSet = class extends ATNConfigSet {
  static {
    __name(this, "OrderedATNConfigSet");
  }
  constructor() {
    super();
    this.configLookup = new OrderedHashSet();
  }
};

// src/atn/LexerIndexedCustomAction.ts
var LexerIndexedCustomAction = class _LexerIndexedCustomAction {
  static {
    __name(this, "LexerIndexedCustomAction");
  }
  offset;
  action;
  actionType;
  isPositionDependent = true;
  #cachedHashCode;
  constructor(offset, action) {
    this.actionType = action.actionType;
    this.offset = offset;
    this.action = action;
  }
  /**
   * This method calls {@link execute} on the result of {@link getAction}
   * using the provided `lexer`.
   */
  execute(lexer) {
    this.action.execute(lexer);
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hash = MurmurHash.initialize();
      hash = MurmurHash.update(hash, this.offset);
      hash = MurmurHash.updateFromComparable(hash, this.action);
      this.#cachedHashCode = MurmurHash.finish(hash, 2);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (!(other instanceof _LexerIndexedCustomAction)) {
      return false;
    }
    return this.offset === other.offset && this.action === other.action;
  }
};

// src/atn/LexerActionExecutor.ts
var LexerActionExecutor = class _LexerActionExecutor {
  static {
    __name(this, "LexerActionExecutor");
  }
  lexerActions;
  actionType;
  isPositionDependent = false;
  #cachedHashCode;
  /**
   * Represents an executor for a sequence of lexer actions which traversed during
   * the matching operation of a lexer rule (token).
   *
   * The executor tracks position information for position-dependent lexer actions
   * efficiently, ensuring that actions appearing only at the end of the rule do
   * not cause bloating of the {@link DFA} created for the lexer.
   */
  constructor(lexerActions) {
    this.actionType = -1;
    this.lexerActions = lexerActions ?? [];
    return this;
  }
  /**
   * Creates a {@link LexerActionExecutor} which executes the actions for
   * the input `lexerActionExecutor` followed by a specified
   * `lexerAction`.
   *
   * @param lexerActionExecutor The executor for actions already traversed by
   * the lexer while matching a token within a particular
   * {@link LexerATNConfig}. If this is `null`, the method behaves as
   * though it were an empty executor.
   * @param lexerAction The lexer action to execute after the actions
   * specified in `lexerActionExecutor`.
   *
   * @returns {LexerActionExecutor} A {@link LexerActionExecutor} for executing the combine actions
   * of `lexerActionExecutor` and `lexerAction`.
   */
  static append(lexerActionExecutor, lexerAction) {
    if (lexerActionExecutor === null) {
      return new _LexerActionExecutor([lexerAction]);
    }
    const lexerActions = lexerActionExecutor.lexerActions.concat([lexerAction]);
    return new _LexerActionExecutor(lexerActions);
  }
  /**
   * Creates a {@link LexerActionExecutor} which encodes the current offset
   * for position-dependent lexer actions.
   *
   * Normally, when the executor encounters lexer actions where
   * {@link LexerAction//isPositionDependent} returns `true`, it calls
   * {@link IntStream.seek} on the input {@link CharStream} to set the input
   * position to the *end* of the current token. This behavior provides
   * for efficient DFA representation of lexer actions which appear at the end
   * of a lexer rule, even when the lexer rule matches a variable number of
   * characters.
   *
   * Prior to traversing a match transition in the ATN, the current offset
   * from the token start index is assigned to all position-dependent lexer
   * actions which have not already been assigned a fixed offset. By storing
   * the offsets relative to the token start index, the DFA representation of
   * lexer actions which appear in the middle of tokens remains efficient due
   * to sharing among tokens of the same length, regardless of their absolute
   * position in the input stream.
   *
   * If the current executor already has offsets assigned to all
   * position-dependent lexer actions, the method returns `this`.
   *
   * @param offset The current offset to assign to all position-dependent
   * lexer actions which do not already have offsets assigned.
   *
   * @returns {LexerActionExecutor} A {@link LexerActionExecutor} which stores input stream offsets
   * for all position-dependent lexer actions.
   */
  fixOffsetBeforeMatch(offset) {
    let updatedLexerActions = null;
    for (let i = 0; i < this.lexerActions.length; i++) {
      if (this.lexerActions[i].isPositionDependent && !(this.lexerActions[i] instanceof LexerIndexedCustomAction)) {
        if (updatedLexerActions === null) {
          updatedLexerActions = this.lexerActions.concat([]);
        }
        updatedLexerActions[i] = new LexerIndexedCustomAction(
          offset,
          this.lexerActions[i]
        );
      }
    }
    if (updatedLexerActions === null) {
      return this;
    } else {
      return new _LexerActionExecutor(updatedLexerActions);
    }
  }
  /**
   * Execute the actions encapsulated by this executor within the context of a
   * particular {@link Lexer}.
   *
   * This method calls {@link IntStream.seek} to set the position of the
   * `input` {@link CharStream} prior to calling
   * {@link LexerAction.execute} on a position-dependent action. Before the
   * method returns, the input position will be restored to the same position
   * it was in when the method was invoked.
   *
   * @param lexer The lexer instance.
   * @param input The input stream which is the source for the current token.
   * When this method is called, the current {@link IntStream.index} for
   * `input` should be the start of the following token, i.e. 1
   * character past the end of the current token.
   * @param startIndex The token start index. This value may be passed to
   * {@link IntStream.seek} to set the `input` position to the beginning
   * of the token.
   */
  execute(lexer, input, startIndex) {
    if (input === void 0 || startIndex === void 0) {
      return;
    }
    let requiresSeek = false;
    const stopIndex = input.index;
    try {
      for (const lexerAction of this.lexerActions) {
        let action = lexerAction;
        if (lexerAction instanceof LexerIndexedCustomAction) {
          const offset = lexerAction.offset;
          input.seek(startIndex + offset);
          action = lexerAction.action;
          requiresSeek = startIndex + offset !== stopIndex;
        } else if (lexerAction.isPositionDependent) {
          input.seek(stopIndex);
          requiresSeek = false;
        }
        action.execute(lexer);
      }
    } finally {
      if (requiresSeek) {
        input.seek(stopIndex);
      }
    }
  }
  hashCode() {
    if (this.#cachedHashCode === void 0) {
      let hashCode = MurmurHash.initialize(7);
      for (const lexerAction of this.lexerActions) {
        hashCode = MurmurHash.update(hashCode, lexerAction.hashCode());
      }
      this.#cachedHashCode = MurmurHash.finish(hashCode, this.lexerActions.length);
    }
    return this.#cachedHashCode;
  }
  equals(other) {
    if (this === other) {
      return true;
    }
    if (this.#cachedHashCode !== other.#cachedHashCode) {
      return false;
    }
    if (this.lexerActions.length !== other.lexerActions.length) {
      return false;
    }
    return this.lexerActions.every((action, index) => {
      return action.equals(other.lexerActions[index]);
    });
  }
};

// src/dfa/DFASerializer.ts
var DFASerializer = class {
  static {
    __name(this, "DFASerializer");
  }
  dfa;
  vocabulary;
  constructor(dfa, vocabulary) {
    this.dfa = dfa;
    this.vocabulary = vocabulary;
  }
  toString() {
    if (!this.dfa.s0) {
      return "";
    }
    let buf = "";
    const states = this.dfa.getStates();
    for (const s of states) {
      let n2 = 0;
      n2 = s.edges.length;
      for (let i = 0; i < n2; i++) {
        const t = s.edges[i];
        if (t && t.stateNumber !== 2147483647) {
          buf += this.getStateString(s);
          const label = this.getEdgeLabel(i);
          buf += "-";
          buf += label;
          buf += "->";
          buf += this.getStateString(t);
          buf += "\n";
        }
      }
    }
    return buf;
  }
  getEdgeLabel(i) {
    const name = this.vocabulary.getDisplayName(i - 1);
    return `${name}`;
  }
  getStateString(s) {
    const n2 = s.stateNumber;
    const baseStateStr = (s.isAcceptState ? ":" : "") + "s" + n2 + (s.requiresFullContext ? "^" : "");
    if (s.isAcceptState) {
      if (s.predicates !== null) {
        return `${baseStateStr}=>${s.predicates.toString()}`;
      }
      return `${baseStateStr}=>${s.prediction}`;
    } else {
      return `${baseStateStr}`;
    }
  }
};

// src/dfa/LexerDFASerializer.ts
var LexerDFASerializer = class extends DFASerializer {
  static {
    __name(this, "LexerDFASerializer");
  }
  constructor(dfa) {
    super(dfa, Vocabulary.EMPTY_VOCABULARY);
  }
  getEdgeLabel = /* @__PURE__ */ __name((i) => {
    return "'" + String.fromCharCode(i) + "'";
  }, "getEdgeLabel");
};

// src/dfa/DFA.ts
var DFA = class {
  static {
    __name(this, "DFA");
  }
  s0;
  decision;
  /** From which ATN state did we create this DFA? */
  atnStartState;
  /**
   * Gets whether this DFA is a precedence DFA. Precedence DFAs use a special
   * start state {@link #s0} which is not stored in {@link #states}. The
   * {@link DFAState#edges} array for this start state contains outgoing edges
   * supplying individual start states corresponding to specific precedence
   * values.
   *
   * @returns `true` if this is a precedence DFA; otherwise, `false`.
   */
  isPrecedenceDfa;
  /**
   * A mapping from an ATNConfigSet hash to a DFAState.
   * Used to quick look up the DFA state for a particular configuration set.
   */
  #states = /* @__PURE__ */ new Map();
  constructor(atnStartState, decision) {
    this.atnStartState = atnStartState;
    this.decision = decision ?? 0;
    let precedenceDfa = false;
    if (atnStartState instanceof StarLoopEntryState) {
      if (atnStartState.precedenceRuleDecision) {
        precedenceDfa = true;
        this.s0 = DFAState.fromState(-1);
      }
    }
    this.isPrecedenceDfa = precedenceDfa;
  }
  [Symbol.iterator] = () => {
    return this.#states.values()[Symbol.iterator]();
  };
  /**
   * Get the start state for a specific precedence value.
   *
   * @param precedence The current precedence.
    @returns The start state corresponding to the specified precedence, or
   * `null` if no start state exists for the specified precedence.
   *
   * @throws IllegalStateException if this is not a precedence DFA.
   * @see #isPrecedenceDfa
   */
  getPrecedenceStartState = /* @__PURE__ */ __name((precedence) => {
    if (!this.isPrecedenceDfa) {
      throw new Error(`Only precedence DFAs may contain a precedence start state.`);
    }
    if (!this.s0 || !this.s0.edges || precedence < 0 || precedence >= this.s0.edges.length) {
      return void 0;
    }
    return this.s0.edges[precedence];
  }, "getPrecedenceStartState");
  /**
   * Set the start state for a specific precedence value.
   *
   * @param precedence The current precedence.
   * @param startState The start state corresponding to the specified precedence.
   */
  setPrecedenceStartState = /* @__PURE__ */ __name((precedence, startState) => {
    if (!this.isPrecedenceDfa) {
      throw new Error(`Only precedence DFAs may contain a precedence start state.`);
    }
    if (precedence < 0 || !this.s0) {
      return;
    }
    this.s0.edges[precedence] = startState;
  }, "setPrecedenceStartState");
  /**
   * @returns a list of all states in this DFA, ordered by state number.
   */
  getStates() {
    const result = [...this.#states.values()];
    result.sort((o1, o2) => {
      return o1.stateNumber - o2.stateNumber;
    });
    return result;
  }
  getState(state) {
    return this.#states.get(state.configs.hashCode()) ?? null;
  }
  getStateForConfigs(configs) {
    return this.#states.get(configs.hashCode()) ?? null;
  }
  addState(state) {
    const hash = state.configs.hashCode();
    if (this.#states.has(hash)) {
      return;
    }
    this.#states.set(hash, state);
    state.stateNumber = this.#states.size - 1;
  }
  toString(vocabulary) {
    if (!vocabulary) {
      return this.toString(Vocabulary.EMPTY_VOCABULARY);
    }
    if (!this.s0) {
      return "";
    }
    const serializer = new DFASerializer(this, vocabulary);
    return serializer.toString() ?? "";
  }
  toLexerString() {
    if (!this.s0) {
      return "";
    }
    const serializer = new LexerDFASerializer(this);
    return serializer.toString() ?? "";
  }
  get length() {
    return this.#states.size;
  }
};

// src/atn/LexerATNSimulator.ts
var LexerATNSimulator = class _LexerATNSimulator extends ATNSimulator {
  static {
    __name(this, "LexerATNSimulator");
  }
  static debug = false;
  decisionToDFA;
  recognizer = null;
  /**
   * The current token's starting index into the character stream.
   *  Shared across DFA to ATN simulation in case the ATN fails and the
   *  DFA did not have a previous accept state. In this case, we use the
   *  ATN-generated exception object.
   */
  startIndex = -1;
  /** line number 1..n within the input */
  line = 1;
  /** The index of the character relative to the beginning of the line 0..n-1 */
  column = 0;
  mode = Lexer.DEFAULT_MODE;
  /** Used during DFA/ATN exec to record the most recent accept configuration info */
  #prevAccept;
  #options;
  /** Lookup table for lexer ATN config creation. */
  #lexerATNConfigFactory;
  /**
   * When we hit an accept state in either the DFA or the ATN, we
   * have to notify the character stream to start buffering characters
   * via {@link IntStream//mark} and record the current state. The current sim state
   * includes the current index into the input, the current line,
   * and current character position in that line. Note that the Lexer is
   * tracking the starting line and characterization of the token. These
   * variables track the "state" of the simulator when it hits an accept state.
   *
   * We track these variables separately for the DFA and ATN simulation
   * because the DFA simulation often has to fail over to the ATN
   * simulation. If the ATN simulation fails, we need the DFA to fall
   * back to its previously accepted state, if any. If the ATN succeeds,
   * then the ATN does the accept and the DFA simulator that invoked it
   * can simply return the predicted token type.
   */
  constructor(recog, atn, decisionToDFA, sharedContextCache) {
    super(atn, sharedContextCache);
    this.decisionToDFA = decisionToDFA;
    this.recognizer = recog;
    if (recog) {
      this.#options = recog.options;
    }
  }
  match(input, mode) {
    this.mode = mode;
    const mark = input.mark();
    try {
      this.startIndex = input.index;
      this.#prevAccept = void 0;
      const dfa = this.decisionToDFA[mode];
      if (!dfa.s0) {
        return this.matchATN(input);
      }
      return this.execATN(input, dfa.s0);
    } finally {
      input.release(mark);
    }
  }
  reset() {
    this.#prevAccept = void 0;
    this.startIndex = -1;
    this.line = 1;
    this.column = 0;
    this.mode = Lexer.DEFAULT_MODE;
  }
  clearDFA() {
    for (let d = 0; d < this.decisionToDFA.length; d++) {
      this.decisionToDFA[d] = new DFA(this.atn.getDecisionState(d), d);
    }
  }
  getDFA(mode) {
    return this.decisionToDFA[mode];
  }
  /** @returns the text matched so far for the current token. */
  getText(input) {
    return input.getTextFromRange(this.startIndex, input.index - 1);
  }
  consume(input) {
    const curChar = input.LA(1);
    if (curChar === "\n".charCodeAt(0)) {
      this.line += 1;
      this.column = 0;
    } else {
      this.column += 1;
    }
    input.consume();
  }
  getTokenName(tt) {
    if (tt === Token.EOF) {
      return "EOF";
    } else {
      return "'" + String.fromCharCode(tt) + "'";
    }
  }
  matchATN(input) {
    const startState = this.atn.modeToStartState[this.mode];
    if (_LexerATNSimulator.debug) {
      console.log("matchATN mode " + this.mode + " start: " + startState);
    }
    const oldMode = this.mode;
    const s0Closure = this.computeStartState(input, startState);
    const suppressEdge = s0Closure.hasSemanticContext;
    s0Closure.hasSemanticContext = false;
    const next = this.addDFAState(s0Closure);
    if (!suppressEdge) {
      this.decisionToDFA[this.mode].s0 = next;
    }
    const predict = this.execATN(input, next);
    if (_LexerATNSimulator.debug) {
      console.log("DFA after matchATN: " + this.decisionToDFA[oldMode].toLexerString());
    }
    return predict;
  }
  execATN(input, state) {
    if (_LexerATNSimulator.debug) {
      console.log("start state closure=" + state.configs);
    }
    if (state.isAcceptState) {
      this.captureSimState(input, state);
    }
    let t = input.LA(1);
    while (true) {
      if (_LexerATNSimulator.debug) {
        console.log("execATN loop starting closure: " + state.configs);
      }
      let target = this.getExistingTargetState(state, t);
      if (!target) {
        target = this.computeTargetState(input, state, t);
      }
      if (target === ATNSimulator.ERROR) {
        break;
      }
      if (t !== Token.EOF) {
        this.consume(input);
      }
      if (target.isAcceptState) {
        this.captureSimState(input, target);
        if (t === Token.EOF) {
          break;
        }
      }
      t = input.LA(1);
      state = target;
    }
    return this.failOrAccept(input, state.configs, t);
  }
  /**
   * Get an existing target state for an edge in the DFA. If the target state
   * for the edge has not yet been computed or is otherwise not available,
   * this method returns `null`.
   *
   * @param s The current DFA state.
   * @param t The next input symbol.
   *
   * @returns The existing target DFA state for the given input symbol
   * `t`, or `null` if the target state for this edge is not already cached
   */
  getExistingTargetState(s, t) {
    if (t >= this.#options.minDFAEdge && t <= this.#options.maxDFAEdge) {
      const target = s.edges[t - this.#options.minDFAEdge];
      if (_LexerATNSimulator.debug && target) {
        console.log("reuse state " + s.stateNumber + " edge to " + target.stateNumber);
      }
      return target;
    }
    return void 0;
  }
  /**
   * Compute a target state for an edge in the DFA, and attempt to add the computed state and corresponding
   * edge to the DFA.
   *
   * @param input The input stream
   * @param s The current DFA state
   * @param t The next input symbol
   *
   * @returns The computed target DFA state for the given input symbol `t`.
   *          If `t` does not lead to a valid DFA state, this method returns `ERROR`.
   */
  computeTargetState(input, s, t) {
    const reach = new OrderedATNConfigSet();
    this.getReachableConfigSet(input, s.configs, reach, t);
    if (reach.length === 0) {
      if (!reach.hasSemanticContext) {
        this.addDFAEdge(s, t, ATNSimulator.ERROR);
      }
      return ATNSimulator.ERROR;
    }
    return this.addDFAEdge(s, t, null, reach);
  }
  failOrAccept(input, reach, t) {
    if (this.#prevAccept?.dfaState) {
      const { dfaState, index, line, column } = this.#prevAccept;
      this.accept(input, dfaState.lexerActionExecutor, this.startIndex, index, line, column);
      return dfaState.prediction;
    }
    if (t === Token.EOF && input.index === this.startIndex) {
      return Token.EOF;
    }
    throw new LexerNoViableAltException(this.recognizer, input, this.startIndex, reach);
  }
  /**
   * Given a starting configuration set, figure out all ATN configurations we can reach upon input `t`.
   * Parameter `reach` is a return parameter.
   */
  getReachableConfigSet(input, closure, reach, t) {
    let skipAlt = ATN.INVALID_ALT_NUMBER;
    for (const cfg of closure) {
      const currentAltReachedAcceptState = cfg.alt === skipAlt;
      if (currentAltReachedAcceptState && cfg.passedThroughNonGreedyDecision) {
        continue;
      }
      if (_LexerATNSimulator.debug) {
        console.log("testing %s at %s\n", this.getTokenName(t), cfg.toString(this.recognizer, true));
      }
      for (const trans of cfg.state.transitions) {
        const target = this.getReachableTarget(trans, t);
        if (target) {
          let lexerActionExecutor = cfg.lexerActionExecutor;
          if (lexerActionExecutor) {
            lexerActionExecutor = lexerActionExecutor.fixOffsetBeforeMatch(input.index - this.startIndex);
          }
          const treatEofAsEpsilon = t === Token.EOF;
          const config = LexerATNConfig.createWithExecutor(
            cfg,
            target,
            lexerActionExecutor
          );
          if (this.closure(input, config, reach, currentAltReachedAcceptState, true, treatEofAsEpsilon)) {
            skipAlt = cfg.alt;
          }
        }
      }
    }
  }
  accept(input, lexerActionExecutor, startIndex, index, line, charPos) {
    if (_LexerATNSimulator.debug) {
      console.log("ACTION %s\n", lexerActionExecutor);
    }
    input.seek(index);
    this.line = line;
    this.column = charPos;
    if (lexerActionExecutor && this.recognizer) {
      lexerActionExecutor.execute(this.recognizer, input, startIndex);
    }
  }
  getReachableTarget(trans, t) {
    if (trans.matches(t, this.#options.minCodePoint, this.#options.maxCodePoint)) {
      return trans.target;
    } else {
      return void 0;
    }
  }
  computeStartState(input, p) {
    const initialContext = PredictionContext.EMPTY;
    const configs = new OrderedATNConfigSet();
    for (let i = 0; i < p.transitions.length; i++) {
      const target = p.transitions[i].target;
      const cfg = LexerATNConfig.createWithContext(target, i + 1, initialContext);
      this.closure(input, cfg, configs, false, false, false);
    }
    return configs;
  }
  /**
   * Since the alternatives within any lexer decision are ordered by
   * preference, this method stops pursuing the closure as soon as an accept
   * state is reached. After the first accept state is reached by depth-first
   * search from `config`, all other (potentially reachable) states for
   * this rule would have a lower priority.
   *
   * @returns {boolean} `true` if an accept state is reached, otherwise `false`.
   */
  closure(input, config, configs, currentAltReachedAcceptState, speculative, treatEofAsEpsilon) {
    let cfg = null;
    if (_LexerATNSimulator.debug) {
      console.log("closure(" + config.toString(this.recognizer, true) + ")");
    }
    if (config.state.constructor.stateType === ATNState.RULE_STOP) {
      if (_LexerATNSimulator.debug) {
        if (this.recognizer !== null) {
          console.log(
            "closure at %s rule stop %s\n",
            this.recognizer.ruleNames[config.state.ruleIndex],
            config
          );
        } else {
          console.log("closure at rule stop %s\n", config);
        }
      }
      if (!config.context || config.context.hasEmptyPath()) {
        if (!config.context || config.context.isEmpty()) {
          configs.add(config);
          return true;
        } else {
          configs.add(LexerATNConfig.createWithConfig(config.state, config, PredictionContext.EMPTY));
          currentAltReachedAcceptState = true;
        }
      }
      if (config.context && !config.context.isEmpty()) {
        for (let i = 0; i < config.context.length; i++) {
          if (config.context.getReturnState(i) !== PredictionContext.EMPTY_RETURN_STATE) {
            const newContext = config.context.getParent(i);
            const returnState = this.atn.states[config.context.getReturnState(i)];
            cfg = LexerATNConfig.createWithConfig(returnState, config, newContext);
            currentAltReachedAcceptState = this.closure(
              input,
              cfg,
              configs,
              currentAltReachedAcceptState,
              speculative,
              treatEofAsEpsilon
            );
          }
        }
      }
      return currentAltReachedAcceptState;
    }
    if (!config.state.epsilonOnlyTransitions) {
      if (!currentAltReachedAcceptState || !config.passedThroughNonGreedyDecision) {
        configs.add(config);
      }
    }
    for (const trans of config.state.transitions) {
      cfg = this.getEpsilonTarget(input, config, trans, configs, speculative, treatEofAsEpsilon);
      if (cfg) {
        currentAltReachedAcceptState = this.closure(
          input,
          cfg,
          configs,
          currentAltReachedAcceptState,
          speculative,
          treatEofAsEpsilon
        );
      }
    }
    return currentAltReachedAcceptState;
  }
  // side-effect: can alter configs.hasSemanticContext
  getEpsilonTarget(input, config, trans, configs, speculative, treatEofAsEpsilon) {
    if (!this.#lexerATNConfigFactory) {
      this.setupATNFactoryLookup();
    }
    const factory = this.#lexerATNConfigFactory[trans.transitionType];
    if (!factory) {
      return null;
    }
    return factory(input, config, trans, configs, speculative, treatEofAsEpsilon);
  }
  /**
   * Fills the lookup table for creating lexer ATN configs. This helps to avoid frequent checks of the transition
   * type, which determines the configuration of the created config.
   */
  setupATNFactoryLookup() {
    this.#lexerATNConfigFactory = [];
    this.#lexerATNConfigFactory[Transition.RULE] = (input, config, trans) => {
      const newContext = SingletonPredictionContext.create(
        config.context ?? void 0,
        trans.followState.stateNumber
      );
      return LexerATNConfig.createWithConfig(trans.target, config, newContext);
    };
    this.#lexerATNConfigFactory[Transition.PRECEDENCE] = () => {
      throw new Error("Precedence predicates are not supported in lexers.");
    };
    this.#lexerATNConfigFactory[Transition.PREDICATE] = (input, config, trans, configs, speculative) => {
      const pt = trans;
      if (_LexerATNSimulator.debug) {
        console.log("EVAL rule " + pt.ruleIndex + ":" + pt.predIndex);
      }
      configs.hasSemanticContext = true;
      if (this.evaluatePredicate(input, pt.ruleIndex, pt.predIndex, speculative)) {
        return LexerATNConfig.createWithConfig(trans.target, config);
      }
      return null;
    };
    this.#lexerATNConfigFactory[Transition.ACTION] = (input, config, trans) => {
      if (config.context === null || config.context.hasEmptyPath()) {
        const lexerActionExecutor = LexerActionExecutor.append(
          config.lexerActionExecutor,
          this.atn.lexerActions[trans.actionIndex]
        );
        return LexerATNConfig.createWithExecutor(config, trans.target, lexerActionExecutor);
      } else {
        return LexerATNConfig.createWithConfig(trans.target, config);
      }
    };
    this.#lexerATNConfigFactory[Transition.EPSILON] = (input, config, trans) => {
      return LexerATNConfig.createWithConfig(trans.target, config);
    };
    const simple = /* @__PURE__ */ __name((input, config, trans, configs, speculative, treatEofAsEpsilon) => {
      if (treatEofAsEpsilon) {
        if (trans.matches(Token.EOF, this.#options.minCodePoint, this.#options.maxCodePoint)) {
          return LexerATNConfig.createWithConfig(trans.target, config);
        }
      }
      return null;
    }, "simple");
    this.#lexerATNConfigFactory[Transition.ATOM] = simple;
    this.#lexerATNConfigFactory[Transition.RANGE] = simple;
    this.#lexerATNConfigFactory[Transition.SET] = simple;
  }
  /**
   * Evaluate a predicate specified in the lexer.
   *
   * If `speculative` is `true`, this method was called before
   * {@link consume} for the matched character. This method should call
   * {@link consume} before evaluating the predicate to ensure position
   * sensitive values, including {@link Lexer//getText}, {@link Lexer//getLine},
   * and {@link Lexer}, properly reflect the current
   * lexer state. This method should restore `input` and the simulator
   * to the original state before returning (i.e. undo the actions made by the
   * call to {@link consume}.
   *
   * @param input The input stream.
   * @param ruleIndex The rule containing the predicate.
   * @param predIndex The index of the predicate within the rule.
   * @param speculative `true` if the current index in `input` is
   * one character before the predicate's location.
   *
   * @returns `true` if the specified predicate evaluates to
   * `true`.
   */
  evaluatePredicate(input, ruleIndex, predIndex, speculative) {
    if (!this.recognizer) {
      return true;
    }
    if (!speculative) {
      return this.recognizer.sempred(null, ruleIndex, predIndex);
    }
    const savedColumn = this.column;
    const savedLine = this.line;
    const index = input.index;
    const marker = input.mark();
    try {
      this.consume(input);
      return this.recognizer.sempred(null, ruleIndex, predIndex);
    } finally {
      this.column = savedColumn;
      this.line = savedLine;
      input.seek(index);
      input.release(marker);
    }
  }
  captureSimState(input, dfaState) {
    this.#prevAccept = {
      index: input.index,
      line: this.line,
      column: this.column,
      dfaState
    };
  }
  addDFAEdge(from, tk, to, configs) {
    if (!to && configs) {
      const suppressEdge = configs.hasSemanticContext;
      configs.hasSemanticContext = false;
      to = this.addDFAState(configs);
      if (suppressEdge) {
        return to;
      }
    }
    if (tk < this.#options.minDFAEdge || tk > this.#options.maxDFAEdge) {
      return to;
    }
    if (_LexerATNSimulator.debug) {
      console.log("EDGE " + from + " -> " + to + " upon " + tk);
    }
    from.edges[tk - this.#options.minDFAEdge] = to;
    return to;
  }
  /**
   * Add a new DFA state if there isn't one with this set of configurations already. This method also detects
   * the first configuration containing an ATN rule stop state. Later, when traversing the DFA, we will know
   * which rule to accept.
   */
  addDFAState(configs) {
    const dfa = this.decisionToDFA[this.mode];
    const existing = dfa.getStateForConfigs(configs);
    if (existing) {
      return existing;
    }
    const proposed = DFAState.fromConfigs(configs);
    const firstConfigWithRuleStopState = configs.firstStopState;
    if (firstConfigWithRuleStopState) {
      proposed.isAcceptState = true;
      proposed.lexerActionExecutor = firstConfigWithRuleStopState.lexerActionExecutor;
      proposed.prediction = this.atn.ruleToTokenType[firstConfigWithRuleStopState.state.ruleIndex];
    }
    configs.setReadonly(true);
    dfa.addState(proposed);
    return proposed;
  }
};

// src/atn/ParseInfo.ts
var ParseInfo = class {
  static {
    __name(this, "ParseInfo");
  }
  atnSimulator;
  constructor(atnSimulator) {
    this.atnSimulator = atnSimulator;
  }
  /**
   * Gets an array of {@link DecisionInfo} instances containing the profiling
   * information gathered for each decision in the ATN.
   *
   * @returns An array of {@link DecisionInfo} instances, indexed by decision
   * number.
   */
  getDecisionInfo() {
    return this.atnSimulator.getDecisionInfo();
  }
  /**
   * Gets the decision numbers for decisions that required one or more
   * full-context predictions during parsing. These are decisions for which
   * {@link DecisionInfo#llFallback} is non-zero.
   *
   * @returns A list of decision numbers which required one or more
   * full-context predictions during parsing.
   */
  getLLDecisions() {
    const decisions = this.atnSimulator.getDecisionInfo();
    const result = new Array();
    for (let i = 0; i < decisions.length; i++) {
      const fallBack = decisions[i].llFallback;
      if (fallBack > 0) {
        result.push(i);
      }
    }
    return result;
  }
  /**
   * Gets the total time spent during prediction across all decisions made
   * during parsing. This value is the sum of
   * {@link DecisionInfo#timeInPrediction} for all decisions.
   */
  getTotalTimeInPrediction() {
    const decisions = this.atnSimulator.getDecisionInfo();
    let t = 0;
    for (const decision of decisions) {
      t += decision.timeInPrediction;
    }
    return t;
  }
  /**
   * Gets the total number of SLL lookahead operations across all decisions
   * made during parsing. This value is the sum of
   * {@link DecisionInfo#sllTotalLook} for all decisions.
   */
  getTotalSLLLookaheadOps() {
    const decisions = this.atnSimulator.getDecisionInfo();
    let k = 0;
    for (const decision of decisions) {
      k += decision.sllTotalLook;
    }
    return k;
  }
  /**
   * Gets the total number of LL lookahead operations across all decisions
   * made during parsing. This value is the sum of
   * {@link DecisionInfo#llTotalLook} for all decisions.
   */
  getTotalLLLookaheadOps() {
    const decisions = this.atnSimulator.getDecisionInfo();
    let k = 0;
    for (const decision of decisions) {
      k += decision.llTotalLook;
    }
    return k;
  }
  /**
   * Gets the total number of ATN lookahead operations for SLL prediction
   * across all decisions made during parsing.
   */
  getTotalSLLATNLookaheadOps() {
    const decisions = this.atnSimulator.getDecisionInfo();
    let k = 0;
    for (const decision of decisions) {
      k += decision.sllATNTransitions;
    }
    return k;
  }
  /**
   * Gets the total number of ATN lookahead operations for LL prediction
   * across all decisions made during parsing.
   */
  getTotalLLATNLookaheadOps() {
    const decisions = this.atnSimulator.getDecisionInfo();
    let k = 0;
    for (const decision of decisions) {
      k += decision.llATNTransitions;
    }
    return k;
  }
  /**
   * Gets the total number of ATN lookahead operations for SLL and LL
   * prediction across all decisions made during parsing.
   *
   *
   * This value is the sum of {@link #getTotalSLLATNLookaheadOps} and
   * {@link #getTotalLLATNLookaheadOps}.
   */
  getTotalATNLookaheadOps() {
    const decisions = this.atnSimulator.getDecisionInfo();
    let k = 0;
    for (const decision of decisions) {
      k += decision.sllATNTransitions;
      k += decision.llATNTransitions;
    }
    return k;
  }
  getDFASize(decision) {
    if (decision === void 0) {
      let n2 = 0;
      const decisionToDFA = this.atnSimulator.decisionToDFA;
      for (let i = 0; i < decisionToDFA.length; i++) {
        n2 += this.getDFASize(i);
      }
      return n2;
    } else {
      const decisionToDFA = this.atnSimulator.decisionToDFA[decision];
      return decisionToDFA.length;
    }
  }
};

// src/NoViableAltException.ts
var NoViableAltException = class extends RecognitionException {
  static {
    __name(this, "NoViableAltException");
  }
  /** Which configurations did we try at input.index() that couldn't match input.LT(1)? */
  deadEndConfigs = null;
  /**
   * The token object at the start index; the input stream might
   * 	not be buffering tokens so get a reference to it. (At the
   *  time the error occurred, of course the stream needs to keep a
   *  buffer all of the tokens but later we might not have access to those.)
   */
  startToken;
  constructor(recognizer, input = null, startToken = null, offendingToken = null, deadEndConfigs = null, ctx = null) {
    ctx = ctx ?? recognizer.context;
    offendingToken = offendingToken ?? recognizer.getCurrentToken();
    startToken = startToken ?? recognizer.getCurrentToken();
    input = input ?? recognizer.inputStream;
    super({ message: "", recognizer, input, ctx });
    this.deadEndConfigs = deadEndConfigs;
    this.startToken = startToken;
    this.offendingToken = offendingToken;
  }
};

// src/utils/DoubleDict.ts
var DoubleDict = class {
  static {
    __name(this, "DoubleDict");
  }
  cacheMap;
  constructor() {
    this.cacheMap = new HashMap();
  }
  get(a, b) {
    const d = this.cacheMap.get(a) ?? null;
    return d === null ? null : d.get(b) ?? null;
  }
  set(a, b, o) {
    let d = this.cacheMap.get(a);
    if (!d) {
      d = new HashMap();
      this.cacheMap.set(a, d);
    }
    d.set(b, o);
  }
};

// src/atn/PredictionMode.ts
var SubsetEqualityComparer = class _SubsetEqualityComparer {
  static {
    __name(this, "SubsetEqualityComparer");
  }
  static instance = new _SubsetEqualityComparer();
  hashCode(config) {
    let hashCode = MurmurHash.initialize(7);
    hashCode = MurmurHash.update(hashCode, config.state.stateNumber);
    hashCode = MurmurHash.updateFromComparable(hashCode, config.context);
    hashCode = MurmurHash.finish(hashCode, 2);
    return hashCode;
  }
  equals(a, b) {
    return a.state.stateNumber === b.state.stateNumber && (a.context?.equals(b.context) ?? true);
  }
};
var PredictionMode = class _PredictionMode {
  static {
    __name(this, "PredictionMode");
  }
  /**
   * The SLL(*) prediction mode. This prediction mode ignores the current
   * parser context when making predictions. This is the fastest prediction
   * mode, and provides correct results for many grammars. This prediction
   * mode is more powerful than the prediction mode provided by ANTLR 3, but
   * may result in syntax errors for grammar and input combinations which are
   * not SLL.
   *
   *
   * When using this prediction mode, the parser will either return a correct
   * parse tree (i.e. the same parse tree that would be returned with the
   * {@link LL} prediction mode), or it will report a syntax error. If a
   * syntax error is encountered when using the {@link SLL} prediction mode,
   * it may be due to either an actual syntax error in the input or indicate
   * that the particular combination of grammar and input requires the more
   * powerful {@link LL} prediction abilities to complete successfully.
   *
   *
   * This prediction mode does not provide any guarantees for prediction
   * behavior for syntactically-incorrect inputs.
   */
  static SLL = 0;
  /**
   * The LL(*) prediction mode. This prediction mode allows the current parser
   * context to be used for resolving SLL conflicts that occur during
   * prediction. This is the fastest prediction mode that guarantees correct
   * parse results for all combinations of grammars with syntactically correct
   * inputs.
   *
   *
   * When using this prediction mode, the parser will make correct decisions
   * for all syntactically-correct grammar and input combinations. However, in
   * cases where the grammar is truly ambiguous this prediction mode might not
   * report a precise answer for *exactly which* alternatives are
   * ambiguous.
   *
   *
   * This prediction mode does not provide any guarantees for prediction
   * behavior for syntactically-incorrect inputs.
   */
  static LL = 1;
  /**
   *
   * The LL(*) prediction mode with exact ambiguity detection. In addition to
   * the correctness guarantees provided by the {@link LL} prediction mode,
   * this prediction mode instructs the prediction algorithm to determine the
   * complete and exact set of ambiguous alternatives for every ambiguous
   * decision encountered while parsing.
   *
   *
   * This prediction mode may be used for diagnosing ambiguities during
   * grammar development. Due to the performance overhead of calculating sets
   * of ambiguous alternatives, this prediction mode should be avoided when
   * the exact results are not necessary.
   *
   *
   * This prediction mode does not provide any guarantees for prediction
   * behavior for syntactically-incorrect inputs.
   */
  static LL_EXACT_AMBIG_DETECTION = 2;
  /**
   *
   *Computes the SLL prediction termination condition.
   *
   *
   *This method computes the SLL prediction termination condition for both of
   *the following cases.
   *
   * - The usual SLL+LL fallback upon SLL conflict
   * - Pure SLL without LL fallback
   *
   ***COMBINED SLL+LL PARSING**
   *
   *When LL-fallback is enabled upon SLL conflict, correct predictions are
   *ensured regardless of how the termination condition is computed by this
   *method. Due to the substantially higher cost of LL prediction, the
   *prediction should only fall back to LL when the additional lookahead
   *cannot lead to a unique SLL prediction.
   *
   *Assuming combined SLL+LL parsing, an SLL configuration set with only
   *conflicting subsets should fall back to full LL, even if the
   *configuration sets don't resolve to the same alternative (e.g.
   *`{1,2`} and `{3,4`}. If there is at least one non-conflicting
   *configuration, SLL could continue with the hopes that more lookahead will
   *resolve via one of those non-conflicting configurations.
   *
   *Here's the prediction termination rule them: SLL (for SLL+LL parsing)
   *stops when it sees only conflicting configuration subsets. In contrast,
   *full LL keeps going when there is uncertainty.
   *
   ***HEURISTIC**
   *
   *As a heuristic, we stop prediction when we see any conflicting subset
   *unless we see a state that only has one alternative associated with it.
   *The single-alt-state thing lets prediction continue upon rules like
   *(otherwise, it would admit defeat too soon):
   *
   *`[12|1|[], 6|2|[], 12|2|[]]. s : (ID | ID ID?) ';' ;`
   *
   *When the ATN simulation reaches the state before `';'`, it has a
   *DFA state that looks like: `[12|1|[], 6|2|[], 12|2|[]]`. Naturally
   *`12|1|[]` and `12|2|[]` conflict, but we cannot stop
   *processing this node because alternative to has another way to continue,
   *via `[6|2|[]]`.
   *
   *It also let's us continue for this rule:
   *
   *`[1|1|[], 1|2|[], 8|3|[]] a : A | A | A B ;`
   *
   *After matching input A, we reach the stop state for rule A, state 1.
   *State 8 is the state right before B. Clearly alternatives 1 and 2
   *conflict and no amount of further lookahead will separate the two.
   *However, alternative 3 will be able to continue and so we do not stop
   *working on this state. In the previous example, we're concerned with
   *states associated with the conflicting alternatives. Here alt 3 is not
   *associated with the conflicting configs, but since we can continue
   *looking for input reasonably, don't declare the state done.
   *
   ***PURE SLL PARSING**
   *
   *To handle pure SLL parsing, all we have to do is make sure that we
   *combine stack contexts for configurations that differ only by semantic
   *predicate. From there, we can do the usual SLL termination heuristic.
   *
   ***PREDICATES IN SLL+LL PARSING**
   *
   *SLL decisions don't evaluate predicates until after they reach DFA stop
   *states because they need to create the DFA cache that works in all
   *semantic situations. In contrast, full LL evaluates predicates collected
   *during start state computation so it can ignore predicates thereafter.
   *This means that SLL termination detection can totally ignore semantic
   *predicates.
   *
   *Implementation-wise, {@link ATNConfigSet} combines stack contexts but not
   *semantic predicate contexts so we might see two configurations like the
   *following.
   *
   *`(s, 1, x, {`), (s, 1, x', {p})}
   *
   *Before testing these configurations against others, we have to merge
   *`x` and `x'` (without modifying the existing configurations).
   *For example, we test `(x+x')==x''` when looking for conflicts in
   *the following configurations.
   *
   *`(s, 1, x, {`), (s, 1, x', {p}), (s, 2, x'', {})}
   *
   *If the configuration set has predicates (as indicated by
   *{@link ATNConfigSet//hasSemanticContext}), this algorithm makes a copy of
   *the configurations to strip out all of the predicates so that a standard
   *{@link ATNConfigSet} will merge everything ignoring predicates.
   */
  static hasSLLConflictTerminatingPrediction(mode, configs) {
    if (_PredictionMode.allConfigsInRuleStopStates(configs)) {
      return true;
    }
    if (mode === _PredictionMode.SLL) {
      if (configs.hasSemanticContext) {
        const dup = new ATNConfigSet();
        for (let c of configs) {
          c = ATNConfig.duplicate(c, SemanticContext.NONE);
          dup.add(c);
        }
        configs = dup;
      }
    }
    const altSets = _PredictionMode.getConflictingAltSubsets(configs);
    return _PredictionMode.hasConflictingAltSet(altSets) && !_PredictionMode.hasStateAssociatedWithOneAlt(configs);
  }
  /**
   * Checks if any configuration in `configs` is in a
   * {@link RuleStopState}. Configurations meeting this condition have reached
   * the end of the decision rule (local context) or end of start rule (full
   * context).
   *
   * @param configs the configuration set to test
   * @returns `true` if any configuration in `configs` is in a
   * {@link RuleStopState}, otherwise `false`
   */
  static hasConfigInRuleStopState(configs) {
    for (const c of configs) {
      if (c.state instanceof RuleStopState) {
        return true;
      }
    }
    return false;
  }
  /**
   * Checks if all configurations in `configs` are in a
   * {@link RuleStopState}. Configurations meeting this condition have reached
   * the end of the decision rule (local context) or end of start rule (full
   * context).
   *
   * @param configs the configuration set to test
   * @returns `true` if all configurations in `configs` are in a
   * {@link RuleStopState}, otherwise `false`
   */
  static allConfigsInRuleStopStates(configs) {
    for (const c of configs) {
      if (!(c.state instanceof RuleStopState)) {
        return false;
      }
    }
    return true;
  }
  /**
   *
   * Full LL prediction termination.
   *
   * Can we stop looking ahead during ATN simulation or is there some
   * uncertainty as to which alternative we will ultimately pick, after
   * consuming more input? Even if there are partial conflicts, we might know
   * that everything is going to resolve to the same minimum alternative. That
   * means we can stop since no more lookahead will change that fact. On the
   * other hand, there might be multiple conflicts that resolve to different
   * minimums. That means we need more look ahead to decide which of those
   * alternatives we should predict.
   *
   * The basic idea is to split the set of configurations `C`, into
   * conflicting subsets `(s, _, ctx, _)` and singleton subsets with
   * non-conflicting configurations. Two configurations conflict if they have
   * identical {@link ATNConfig.state} and {@link ATNConfig.context} values
   * but different {@link ATNConfig.alt} value, e.g. `(s, i, ctx, _)`
   * and `(s, j, ctx, _)` for `i!=j`.
   *
   * Reduce these configuration subsets to the set of possible alternatives.
   * You can compute the alternative subsets in one pass as follows:
   *
   * `A_s,ctx = {i | (s, i, ctx, _)`} for each configuration in
   * `C` holding `s` and `ctx` fixed.
   *
   * Or in pseudo-code, for each configuration `c` in `C`:
   *
   * ```
   * map[c] U= c.{@link ATNConfig.alt alt} // map hash/equals uses s and x, not
   * alt and not pred
   * ```
   *
   * The values in `map` are the set of `A_s,ctx` sets.
   *
   * If `|A_s,ctx|=1` then there is no conflict associated with
   * `s` and `ctx`.
   *
   * Reduce the subsets to singletons by choosing a minimum of each subset. If
   * the union of these alternative subsets is a singleton, then no amount of
   * more lookahead will help us. We will always pick that alternative. If,
   * however, there is more than one alternative, then we are uncertain which
   * alternative to predict and must continue looking for resolution. We may
   * or may not discover an ambiguity in the future, even if there are no
   * conflicting subsets this round.
   *
   * The biggest sin is to terminate early because it means we've made a
   * decision but were uncertain as to the eventual outcome. We haven't used
   * enough lookahead. On the other hand, announcing a conflict too late is no
   * big deal; you will still have the conflict. It's just inefficient. It
   * might even look until the end of file.
   *
   * No special consideration for semantic predicates is required because
   * predicates are evaluated on-the-fly for full LL prediction, ensuring that
   * no configuration contains a semantic context during the termination
   * check.
   *
   * **CONFLICTING CONFIGS**
   *
   * Two configurations `(s, i, x)` and `(s, j, x')`, conflict when `i!=j` but `x=x'`. Because we merge all
   * `(s, i, _)` configurations together, that means that there are at most `n` configurations associated with state
   * `s` for `n` possible alternatives in the decision. The merged stacks complicate the comparison of configuration
   * contexts `x` and `x'`. Sam checks to see if one is a subset of the other by calling merge and checking to see
   * if the merged result is either `x` or `x'`. If the `x` associated with lowest alternative `i` is the superset,
   * then `i` is the only possible prediction since the others resolve to `min(i)` as well. However, if `x` is
   * associated with `j>i` then at least one stack configuration for `j` is not in conflict with alternative `i`.
   * The algorithm should keep going, looking for more lookahead due to the uncertainty.
   *
   * For simplicity, I'm doing a equality check between `x` and `x'` that lets the algorithm continue to consume
   * lookahead longer than necessary. The reason I like the equality is of course the simplicity but also because
   * that is the test you need to detect the alternatives that are actually in conflict.
   *
   * **CONTINUE/STOP RULE**
   *
   * Continue if union of resolved alternative sets from non-conflicting and conflicting alternative subsets has more
   * than one alternative. We are uncertain about which alternative to predict.
   *
   * The complete set of alternatives, `[i for (_,i,_)]`, tells us which alternatives are still in the running for
   * the amount of input we've consumed at this point. The conflicting sets let us to strip away configurations that
   * won't lead to more states because we resolve conflicts to the configuration with a minimum alternate for the
   * conflicting set.
   *
   * **CASES**
   *
   * - no conflicts and more than 1 alternative in set => continue
   * -  `(s, 1, x)`, `(s, 2, x)`, `(s, 3, z)`, `(s', 1, y)`, `(s', 2, y)` yields non-conflicting set `{3`} U
   *   conflicting sets `min({1,2`)} U `min({1,2`)} = `{1,3`} => continue
   * - `(s, 1, x)`, `(s, 2, x)`, `(s', 1, y)`, `(s', 2, y)`, `(s'', 1, z)` yields non-conflicting set `{1`} U
   *   conflicting sets `min({1,2`)} U `min({1,2`)} = `{1`} => stop and predict 1
   * - `(s, 1, x)`, `(s, 2, x)`, `(s', 1, y)`, `(s', 2, y)` yields conflicting, reduced sets `{1`} U
   *   `{1`} = `{1`} => stop and predict 1, can announce ambiguity `{1,2`}
   * - `(s, 1, x)`, `(s, 2, x)`, `(s', 2, y)`, `(s', 3, y)` yields conflicting, reduced sets `{1`} U
   *   `{2`} = `{1,2`} => continue
   * - `(s, 1, x)`, `(s, 2, x)`, `(s', 3, y)`, `(s', 4, y)` yields conflicting, reduced sets `{1`} U
   *   `{3`} = `{1,3`} => continue
   *
   * **EXACT AMBIGUITY DETECTION**
   *
   *If all states report the same conflicting set of alternatives, then we
   *know we have the exact ambiguity set.
   *
   * `|A_*i*|>1` and `A_*i* = A_*j*` for all *i*, *j*.
   *
   * In other words, we continue examining lookahead until all `A_i` have more than one alternative and all `A_i`
   * are the same. If `A={{1,2`, {1,3}}}, then regular LL prediction would terminate because the resolved set
   * is `{1`}. To determine what the real ambiguity is, we have to know whether the ambiguity is between one and
   * two or one and three so we keep going. We can only stop prediction when we need exact ambiguity detection when
   * the sets look like `A={{1,2`}} or `{{1,2`,{1,2}}}, etc...
   */
  static resolvesToJustOneViableAlt(altSets) {
    return _PredictionMode.getSingleViableAlt(altSets);
  }
  /**
   * Determines if every alternative subset in `altSets` contains more
   * than one alternative.
   *
   * @param altSets a collection of alternative subsets
   * @returns `true` if every {@link BitSet} in `altSets` has
   * {@link BitSet//cardinality cardinality} > 1, otherwise `false`
   */
  static allSubsetsConflict(altSets) {
    return !_PredictionMode.hasNonConflictingAltSet(altSets);
  }
  /**
   * Determines if any single alternative subset in `altSets` contains
   * exactly one alternative.
   *
   * @param altSets a collection of alternative subsets
   * @returns `true` if `altSets` contains a {@link BitSet} with
   * {@link BitSet//cardinality cardinality} 1, otherwise `false`
   */
  static hasNonConflictingAltSet(altSets) {
    for (const alts of altSets) {
      if (alts.length === 1) {
        return true;
      }
    }
    return false;
  }
  /**
   * Determines if any single alternative subset in `altSets` contains
   * more than one alternative.
   *
   * @param altSets a collection of alternative subsets
   * @returns `true` if `altSets` contains a {@link BitSet} with
   * {@link BitSet//cardinality cardinality} > 1, otherwise `false`
   */
  static hasConflictingAltSet(altSets) {
    for (const alts of altSets) {
      if (alts.length > 1) {
        return true;
      }
    }
    return false;
  }
  /**
   * Determines if every alternative subset in `altSets` is equivalent.
   *
   * @param altSets a collection of alternative subsets
   * @returns `true` if every member of `altSets` is equal to the
   * others, otherwise `false`
   */
  static allSubsetsEqual(altSets) {
    let first = null;
    for (const alts of altSets) {
      if (first === null) {
        first = alts;
      } else if (alts !== first) {
        return false;
      }
    }
    return true;
  }
  /**
   * Returns the unique alternative predicted by all alternative subsets in
   * `altSets`. If no such alternative exists, this method returns
   * {@link ATN.INVALID_ALT_NUMBER}.
   *
   * @param altSets a collection of alternative subsets
   */
  static getUniqueAlt(altSets) {
    const all = _PredictionMode.getAlts(altSets);
    if (all.length === 1) {
      return all.nextSetBit(0);
    } else {
      return ATN.INVALID_ALT_NUMBER;
    }
  }
  /**
   * Gets the complete set of represented alternatives for a collection of
   * alternative subsets. This method returns the union of each {@link BitSet}
   * in `altSets`.
   *
   * @param altSets a collection of alternative subsets
   * @returns the set of represented alternatives in `altSets`
   */
  static getAlts(altSets) {
    const all = new BitSet();
    altSets.forEach((alts) => {
      all.or(alts);
    });
    return all;
  }
  /**
   * This function gets the conflicting alt subsets from a configuration set.
   * For each configuration `c` in `configs`:
   *
   * ```
   * map[c] U= c.{@link ATNConfig.alt alt} // map hash/equals uses s and x, not
   * alt and not pred
   * ```
   */
  static getConflictingAltSubsets(configs) {
    const configToAlts = new HashMap(SubsetEqualityComparer.instance);
    for (const cfg of configs) {
      let alts = configToAlts.get(cfg);
      if (!alts) {
        alts = new BitSet();
        configToAlts.set(cfg, alts);
      }
      alts.set(cfg.alt);
    }
    return Array.from(configToAlts.values());
  }
  /**
   * Get a map from state to alt subset from a configuration set. For each configuration `c` in `configs`:
   *
   * ```
   * map[c.state] = c.alt
   * ```
   */
  static getStateToAltMap(configs) {
    const m2 = new HashMap(ObjectEqualityComparator.instance);
    for (const c of configs) {
      let alts = m2.get(c.state);
      if (!alts) {
        alts = new BitSet();
        m2.set(c.state, alts);
      }
      alts.set(c.alt);
    }
    return m2;
  }
  static hasStateAssociatedWithOneAlt(configs) {
    const counts = {};
    for (const c of configs) {
      const stateNumber = c.state.stateNumber;
      if (!counts[stateNumber]) {
        counts[stateNumber] = 0;
      }
      counts[stateNumber]++;
    }
    return Object.values(counts).some((count) => {
      return count === 1;
    });
  }
  static getSingleViableAlt(altSets) {
    let result = null;
    for (const alts of altSets) {
      const minAlt = alts.nextSetBit(0);
      if (result === null) {
        result = minAlt;
      } else if (result !== minAlt) {
        return ATN.INVALID_ALT_NUMBER;
      }
    }
    return result ?? 0;
  }
};

// src/atn/ParserATNSimulator.ts
var ParserATNSimulator = class _ParserATNSimulator extends ATNSimulator {
  static {
    __name(this, "ParserATNSimulator");
  }
  static traceATNSimulator = false;
  static debug;
  static debugAdd = false;
  static debugClosure = false;
  static dfaDebug = false;
  static retryDebug = false;
  /** SLL, LL, or LL + exact ambig detection? */
  predictionMode;
  decisionToDFA;
  parser;
  /**
   * Each prediction operation uses a cache for merge of prediction contexts.
   * Don't keep around as it wastes huge amounts of memory. DoubleKeyMap
   * isn't synchronized but we're ok since two threads shouldn't reuse same
   * parser/atn sim object because it can only handle one input at a time.
   * This maps graphs a and b to merged result c. (a,b)->c. We can avoid
   * the merge if we ever see a and b again.  Note that (b,a)->c should
   * also be examined during cache lookup.
   */
  mergeCache = new DoubleDict();
  // Used also in the profiling ATN simulator.
  predictionState;
  constructor(recog, atn, decisionToDFA, sharedContextCache) {
    super(atn, sharedContextCache);
    this.parser = recog;
    this.decisionToDFA = decisionToDFA;
  }
  static getUniqueAlt(configs) {
    let alt = ATN.INVALID_ALT_NUMBER;
    for (const c of configs) {
      if (alt === ATN.INVALID_ALT_NUMBER) {
        alt = c.alt;
      } else if (c.alt !== alt) {
        return ATN.INVALID_ALT_NUMBER;
      }
    }
    return alt;
  }
  reset() {
  }
  clearDFA() {
    for (let d = 0; d < this.decisionToDFA.length; d++) {
      this.decisionToDFA[d] = new DFA(this.atn.getDecisionState(d), d);
    }
  }
  // TODO: make outerContext an optional parameter, not optional null.
  adaptivePredict(input, decision, outerContext) {
    if (_ParserATNSimulator.debug || _ParserATNSimulator.traceATNSimulator) {
      console.log("adaptivePredict decision " + decision + " exec LA(1)==" + this.getLookaheadName(input) + " line " + input.LT(1).line + ":" + input.LT(1).column);
    }
    const dfa = this.decisionToDFA[decision];
    this.predictionState = {
      input,
      startIndex: input.index,
      outerContext: outerContext ?? void 0,
      dfa
    };
    const m2 = input.mark();
    const index = input.index;
    try {
      let s0;
      if (dfa.isPrecedenceDfa) {
        s0 = dfa.getPrecedenceStartState(this.parser.getPrecedence());
      } else {
        s0 = dfa.s0;
      }
      if (!s0) {
        if (!outerContext) {
          outerContext = ParserRuleContext.empty;
        }
        if (_ParserATNSimulator.debug) {
          console.log("predictATN decision " + dfa.decision + " exec LA(1)==" + this.getLookaheadName(input) + ", outerContext=" + outerContext.toString(this.parser.ruleNames));
        }
        const fullCtx = false;
        let s0_closure = this.computeStartState(dfa.atnStartState, ParserRuleContext.empty, fullCtx);
        if (dfa.isPrecedenceDfa) {
          s0_closure = this.applyPrecedenceFilter(s0_closure);
          s0 = this.addDFAState(dfa, DFAState.fromConfigs(s0_closure));
          dfa.setPrecedenceStartState(this.parser.getPrecedence(), s0);
        } else {
          s0 = this.addDFAState(dfa, DFAState.fromConfigs(s0_closure));
          dfa.s0 = s0;
        }
      }
      const alt = this.execATN(dfa, s0, input, index, outerContext);
      if (_ParserATNSimulator.debug) {
        console.log("DFA after predictATN: " + dfa.toString(this.parser.vocabulary));
      }
      return alt;
    } finally {
      this.predictionState.dfa = void 0;
      this.mergeCache = new DoubleDict();
      input.seek(index);
      input.release(m2);
    }
  }
  /**
   * Performs ATN simulation to compute a predicted alternative based
   *  upon the remaining input, but also updates the DFA cache to avoid
   *  having to traverse the ATN again for the same input sequence.
   *
   * There are some key conditions we're looking for after computing a new
   * set of ATN configs (proposed DFA state):
   *       if the set is empty, there is no viable alternative for current symbol
   *       does the state uniquely predict an alternative?
   *       does the state have a conflict that would prevent us from
   *         putting it on the work list?
   *
   * We also have some key operations to do:
   *       add an edge from previous DFA state to potentially new DFA state, D,
   *         upon current symbol but only if adding to work list, which means in all
   *         cases except no viable alternative (and possibly non-greedy decisions?)
   *       collecting predicates and adding semantic context to DFA accept states
   *       adding rule context to context-sensitive DFA accept states
   *       consuming an input symbol
   *       reporting a conflict
   *       reporting an ambiguity
   *       reporting a context sensitivity
   *       reporting insufficient predicates
   *
   * cover these cases:
   *    dead end
   *    single alt
   *    single alt + preds
   *    conflict
   *    conflict + preds
   */
  execATN(dfa, s0, input, startIndex, outerContext) {
    if (_ParserATNSimulator.debug || _ParserATNSimulator.traceATNSimulator) {
      console.log("execATN decision " + dfa.decision + ", DFA state " + s0 + ", LA(1)==" + this.getLookaheadName(input) + " line " + input.LT(1).line + ":" + input.LT(1).column);
    }
    let alt;
    let previousState = s0;
    let t = input.LA(1);
    while (true) {
      let nextState = this.getExistingTargetState(previousState, t);
      if (!nextState) {
        nextState = this.computeTargetState(dfa, previousState, t);
      }
      if (nextState === ATNSimulator.ERROR) {
        const e = this.noViableAlt(input, outerContext, previousState.configs, startIndex);
        input.seek(startIndex);
        alt = this.getSynValidOrSemInvalidAltThatFinishedDecisionEntryRule(previousState.configs, outerContext);
        if (alt !== ATN.INVALID_ALT_NUMBER) {
          return alt;
        } else {
          throw e;
        }
      }
      if (nextState.requiresFullContext && this.predictionMode !== PredictionMode.SLL) {
        let conflictingAlts = null;
        if (nextState.predicates !== null) {
          if (_ParserATNSimulator.debug) {
            console.log("DFA state has preds in DFA sim LL failover");
          }
          const conflictIndex = input.index;
          if (conflictIndex !== startIndex) {
            input.seek(startIndex);
          }
          conflictingAlts = this.evalSemanticContext(nextState.predicates, outerContext, true);
          if (conflictingAlts.length === 1) {
            if (_ParserATNSimulator.debug) {
              console.log("Full LL avoided");
            }
            return conflictingAlts.nextSetBit(0);
          }
          if (conflictIndex !== startIndex) {
            input.seek(conflictIndex);
          }
        }
        if (_ParserATNSimulator.dfaDebug) {
          console.log("ctx sensitive state " + outerContext + " in " + nextState);
        }
        const fullCtx = true;
        const s0_closure = this.computeStartState(dfa.atnStartState, outerContext, fullCtx);
        this.reportAttemptingFullContext(dfa, conflictingAlts, nextState.configs, startIndex, input.index);
        alt = this.execATNWithFullContext(dfa, nextState, s0_closure, input, startIndex, outerContext);
        return alt;
      }
      if (nextState.isAcceptState) {
        if (nextState.predicates === null) {
          return nextState.prediction;
        }
        const stopIndex = input.index;
        input.seek(startIndex);
        const alts = this.evalSemanticContext(nextState.predicates, outerContext, true);
        if (alts.length === 0) {
          throw this.noViableAlt(input, outerContext, nextState.configs, startIndex);
        }
        if (alts.length === 1) {
          return alts.nextSetBit(0);
        }
        this.reportAmbiguity(dfa, nextState, startIndex, stopIndex, false, alts, nextState.configs);
        return alts.nextSetBit(0);
      }
      previousState = nextState;
      if (t !== Token.EOF) {
        input.consume();
        t = input.LA(1);
      }
    }
  }
  /**
   * Get an existing target state for an edge in the DFA. If the target state
   * for the edge has not yet been computed or is otherwise not available,
   * this method returns `null`.
   *
   * @param previousD The current DFA state
   * @param t The next input symbol
   * @returns The existing target DFA state for the given input symbol
   * `t`, or `null` if the target state for this edge is not
   * already cached
   */
  getExistingTargetState(previousD, t) {
    return previousD.edges[t + 1];
  }
  /**
   * Compute a target state for an edge in the DFA, and attempt to add the
   * computed state and corresponding edge to the DFA.
   *
   * @param dfa The DFA
   * @param previousD The current DFA state
   * @param t The next input symbol
   *
   * @returns The computed target DFA state for the given input symbol
   * `t`. If `t` does not lead to a valid DFA state, this method
   * returns {@link ERROR
   */
  computeTargetState(dfa, previousD, t) {
    const reach = this.computeReachSet(previousD.configs, t, false);
    if (reach === null) {
      this.addDFAEdge(dfa, previousD, t, ATNSimulator.ERROR);
      return ATNSimulator.ERROR;
    }
    let D = DFAState.fromConfigs(reach);
    const predictedAlt = _ParserATNSimulator.getUniqueAlt(reach);
    if (_ParserATNSimulator.debug) {
      const altSubSets = PredictionMode.getConflictingAltSubsets(reach);
      console.log("SLL altSubSets=" + arrayToString(altSubSets) + /*", previous=" + previousD.configs + */
      ", configs=" + reach + ", predict=" + predictedAlt + ", allSubsetsConflict=" + PredictionMode.allSubsetsConflict(altSubSets) + ", conflictingAlts=" + this.getConflictingAlts(reach));
    }
    if (predictedAlt !== ATN.INVALID_ALT_NUMBER) {
      D.isAcceptState = true;
      D.configs.uniqueAlt = predictedAlt;
      D.prediction = predictedAlt;
    } else if (PredictionMode.hasSLLConflictTerminatingPrediction(this.predictionMode, reach)) {
      D.configs.conflictingAlts = this.getConflictingAlts(reach);
      D.requiresFullContext = true;
      D.isAcceptState = true;
      D.prediction = D.configs.conflictingAlts.nextSetBit(0);
    }
    if (D.isAcceptState && D.configs.hasSemanticContext) {
      this.predicateDFAState(D, this.atn.getDecisionState(dfa.decision));
      if (D.predicates !== null) {
        D.prediction = ATN.INVALID_ALT_NUMBER;
      }
    }
    D = this.addDFAEdge(dfa, previousD, t, D);
    return D;
  }
  getRuleName(index) {
    if (this.parser !== null && index >= 0) {
      return this.parser.ruleNames[index];
    } else {
      return "<rule " + index + ">";
    }
  }
  getTokenName(t) {
    if (t === Token.EOF) {
      return "EOF";
    }
    const vocabulary = this.parser?.vocabulary ?? Vocabulary.EMPTY_VOCABULARY;
    const displayName = vocabulary.getDisplayName(t);
    if (displayName === t.toString()) {
      return displayName;
    }
    return displayName + "<" + t + ">";
  }
  getLookaheadName(input) {
    return this.getTokenName(input.LA(1));
  }
  /**
   * Used for debugging in adaptivePredict around execATN but I cut
   * it out for clarity now that alg. works well. We can leave this
   * "dead" code for a bit
   */
  dumpDeadEndConfigs(e) {
    console.log("dead end configs: ");
    const decs = e.deadEndConfigs;
    for (const c of decs) {
      let trans = "no edges";
      if (c.state.transitions.length > 0) {
        const t = c.state.transitions[0];
        if (t instanceof AtomTransition) {
          trans = "Atom " + this.getTokenName(t.labelValue);
        } else if (t instanceof SetTransition) {
          const neg = t instanceof NotSetTransition;
          trans = (neg ? "~" : "") + "Set " + t.label;
        }
      }
      console.error(c.toString(this.parser, true) + ":" + trans);
    }
  }
  predicateDFAState(dfaState, decisionState) {
    const altCount = decisionState.transitions.length;
    const altsToCollectPredsFrom = this.getConflictingAltsOrUniqueAlt(dfaState.configs);
    const altToPred = this.getPredsForAmbigAlts(altsToCollectPredsFrom, dfaState.configs, altCount);
    if (altToPred !== null) {
      dfaState.predicates = this.getPredicatePredictions(altsToCollectPredsFrom, altToPred);
      dfaState.prediction = ATN.INVALID_ALT_NUMBER;
    } else {
      dfaState.prediction = altsToCollectPredsFrom.nextSetBit(0);
    }
  }
  // comes back with reach.uniqueAlt set to a valid alt
  execATNWithFullContext(dfa, D, s0, input, startIndex, outerContext) {
    if (_ParserATNSimulator.debug || _ParserATNSimulator.traceATNSimulator) {
      console.log("execATNWithFullContext " + s0);
    }
    const fullCtx = true;
    let foundExactAmbig = false;
    let reach;
    let previous = s0;
    input.seek(startIndex);
    let t = input.LA(1);
    let predictedAlt = -1;
    for (; ; ) {
      reach = this.computeReachSet(previous, t, fullCtx);
      if (reach === null) {
        const e = this.noViableAlt(input, outerContext, previous, startIndex);
        input.seek(startIndex);
        const alt = this.getSynValidOrSemInvalidAltThatFinishedDecisionEntryRule(previous, outerContext);
        if (alt !== ATN.INVALID_ALT_NUMBER) {
          return alt;
        } else {
          throw e;
        }
      }
      const altSubSets = PredictionMode.getConflictingAltSubsets(reach);
      if (_ParserATNSimulator.debug) {
        console.log("LL altSubSets=" + altSubSets + ", predict=" + PredictionMode.getUniqueAlt(altSubSets) + ", resolvesToJustOneViableAlt=" + PredictionMode.resolvesToJustOneViableAlt(altSubSets));
      }
      reach.uniqueAlt = _ParserATNSimulator.getUniqueAlt(reach);
      if (reach.uniqueAlt !== ATN.INVALID_ALT_NUMBER) {
        predictedAlt = reach.uniqueAlt;
        break;
      } else if (this.predictionMode !== PredictionMode.LL_EXACT_AMBIG_DETECTION) {
        predictedAlt = PredictionMode.resolvesToJustOneViableAlt(altSubSets);
        if (predictedAlt !== ATN.INVALID_ALT_NUMBER) {
          break;
        }
      } else {
        if (PredictionMode.allSubsetsConflict(altSubSets) && PredictionMode.allSubsetsEqual(altSubSets)) {
          foundExactAmbig = true;
          predictedAlt = PredictionMode.getSingleViableAlt(altSubSets);
          break;
        }
      }
      previous = reach;
      if (t !== Token.EOF) {
        input.consume();
        t = input.LA(1);
      }
    }
    if (reach.uniqueAlt !== ATN.INVALID_ALT_NUMBER) {
      this.reportContextSensitivity(dfa, predictedAlt, reach, startIndex, input.index);
      return predictedAlt;
    }
    this.reportAmbiguity(dfa, D, startIndex, input.index, foundExactAmbig, reach.getAlts(), reach);
    return predictedAlt;
  }
  computeReachSet(closure, t, fullCtx) {
    if (_ParserATNSimulator.debug) {
      console.log("in computeReachSet, starting closure: " + closure);
    }
    const intermediate = new ATNConfigSet(fullCtx);
    let skippedStopStates = null;
    for (const c of closure) {
      if (_ParserATNSimulator.debug) {
        console.log("testing " + this.getTokenName(t) + " at " + c);
      }
      if (c.state instanceof RuleStopState) {
        if (fullCtx || t === Token.EOF) {
          if (skippedStopStates === null) {
            skippedStopStates = [];
          }
          skippedStopStates.push(c);
        }
        continue;
      }
      for (const trans of c.state.transitions) {
        const target = this.getReachableTarget(trans, t);
        if (target !== null) {
          const cfg = ATNConfig.createWithConfig(target, c);
          intermediate.add(cfg, this.mergeCache);
          if (_ParserATNSimulator.debugAdd) {
            console.log("added " + cfg + " to intermediate");
          }
        }
      }
    }
    let reach = null;
    if (skippedStopStates === null && t !== Token.EOF) {
      if (intermediate.length === 1) {
        reach = intermediate;
      } else if (_ParserATNSimulator.getUniqueAlt(intermediate) !== ATN.INVALID_ALT_NUMBER) {
        reach = intermediate;
      }
    }
    if (reach === null) {
      reach = new ATNConfigSet(fullCtx);
      const closureBusy = new HashSet();
      const treatEofAsEpsilon = t === Token.EOF;
      for (const config of intermediate) {
        this.closure(config, reach, closureBusy, false, fullCtx, treatEofAsEpsilon);
      }
    }
    if (t === Token.EOF) {
      reach = this.removeAllConfigsNotInRuleStopState(reach, reach === intermediate);
    }
    if (skippedStopStates !== null && (!fullCtx || !PredictionMode.hasConfigInRuleStopState(reach))) {
      for (const config of skippedStopStates) {
        reach.add(config, this.mergeCache);
      }
    }
    if (_ParserATNSimulator.traceATNSimulator) {
      console.log("computeReachSet " + closure + " -> " + reach);
    }
    if (reach.length === 0) {
      return null;
    } else {
      return reach;
    }
  }
  /**
   * Return a configuration set containing only the configurations from
   * `configs` which are in a {@link RuleStopState}. If all
   * configurations in `configs` are already in a rule stop state, this
   * method simply returns `configs`.
   *
   * When `lookToEndOfRule` is true, this method uses
   * {@link ATN.nextTokens} for each configuration in `configs` which is
   * not already in a rule stop state to see if a rule stop state is reachable
   * from the configuration via epsilon-only transitions.
   *
   * @param configs the configuration set to update
   * @param lookToEndOfRule when true, this method checks for rule stop states
   * reachable by epsilon-only transitions from each configuration in
   * `configs`.
   *
   * @returns `configs` if all configurations in `configs` are in a
   * rule stop state, otherwise return a new configuration set containing only
   * the configurations from `configs` which are in a rule stop state
   */
  removeAllConfigsNotInRuleStopState(configs, lookToEndOfRule) {
    if (PredictionMode.allConfigsInRuleStopStates(configs)) {
      return configs;
    }
    const result = new ATNConfigSet(configs.fullCtx);
    for (const config of configs) {
      if (config.state instanceof RuleStopState) {
        result.add(config, this.mergeCache);
        continue;
      }
      if (lookToEndOfRule && config.state.epsilonOnlyTransitions) {
        const nextTokens = this.atn.nextTokens(config.state);
        if (nextTokens.contains(Token.EPSILON)) {
          const endOfRuleState = this.atn.ruleToStopState[config.state.ruleIndex];
          result.add(ATNConfig.createWithConfig(endOfRuleState, config), this.mergeCache);
        }
      }
    }
    return result;
  }
  computeStartState(p, ctx, fullCtx) {
    const initialContext = predictionContextFromRuleContext(this.atn, ctx);
    const configs = new ATNConfigSet(fullCtx);
    if (_ParserATNSimulator.traceATNSimulator) {
      console.log("computeStartState from ATN state " + p + " initialContext=" + initialContext.toString(this.parser));
    }
    for (let i = 0; i < p.transitions.length; i++) {
      const target = p.transitions[i].target;
      const c = ATNConfig.createWithContext(target, i + 1, initialContext);
      const closureBusy = new HashSet();
      this.closure(c, configs, closureBusy, true, fullCtx, false);
    }
    return configs;
  }
  /**
   * This method transforms the start state computed by
   * {@link computeStartState} to the special start state used by a
   * precedence DFA for a particular precedence value. The transformation
   * process applies the following changes to the start state's configuration
   * set.
   *
   * 1. Evaluate the precedence predicates for each configuration using
   * {@link SemanticContext//evalPrecedence}.
   * 2. Remove all configurations which predict an alternative greater than
   * 1, for which another configuration that predicts alternative 1 is in the
   * same ATN state with the same prediction context. This transformation is
   * valid for the following reasons:
   * 3. The closure block cannot contain any epsilon transitions which bypass
   * the body of the closure, so all states reachable via alternative 1 are
   * part of the precedence alternatives of the transformed left-recursive
   * rule.
   * 4. The "primary" portion of a left recursive rule cannot contain an
   * epsilon transition, so the only way an alternative other than 1 can exist
   * in a state that is also reachable via alternative 1 is by nesting calls
   * to the left-recursive rule, with the outer calls not being at the
   * preferred precedence level.
   *
   *
   * The prediction context must be considered by this filter to address
   * situations like the following.
   *
   * `
   * ```
   * grammar TA;
   * prog: statement* EOF;
   * statement: letterA | statement letterA 'b' ;
   * letterA: 'a';
   * ```
   * `
   *
   * If the above grammar, the ATN state immediately before the token
   * reference `'a'` in `letterA` is reachable from the left edge
   * of both the primary and closure blocks of the left-recursive rule
   * `statement`. The prediction context associated with each of these
   * configurations distinguishes between them, and prevents the alternative
   * which stepped out to `prog` (and then back in to `statement`
   * from being eliminated by the filter.
   *
   * @param configs The configuration set computed by
   * {@link computeStartState} as the start state for the DFA.
   * @returns The transformed configuration set representing the start state
   * for a precedence DFA at a particular precedence level (determined by
   * calling {@link Parser//getPrecedence})
   */
  applyPrecedenceFilter(configs) {
    const statesFromAlt1 = [];
    const configSet = new ATNConfigSet(configs.fullCtx);
    for (const config of configs) {
      if (config.alt !== 1) {
        continue;
      }
      const updatedContext = config.semanticContext.evalPrecedence(
        this.parser,
        this.predictionState.outerContext
      );
      if (updatedContext === null) {
        continue;
      }
      statesFromAlt1[config.state.stateNumber] = config.context;
      if (updatedContext !== config.semanticContext) {
        configSet.add(ATNConfig.duplicate(config, updatedContext), this.mergeCache);
      } else {
        configSet.add(config, this.mergeCache);
      }
    }
    for (const config of configs) {
      if (config.alt === 1) {
        continue;
      }
      if (!config.precedenceFilterSuppressed) {
        const context = statesFromAlt1[config.state.stateNumber] || null;
        if (context !== null && context.equals(config.context)) {
          continue;
        }
      }
      configSet.add(config, this.mergeCache);
    }
    return configSet;
  }
  getReachableTarget(trans, ttype) {
    if (trans.matches(ttype, 0, this.atn.maxTokenType)) {
      return trans.target;
    } else {
      return null;
    }
  }
  getPredsForAmbigAlts(ambigAlts, configs, altCount) {
    let altToPred = [];
    for (const c of configs) {
      if (ambigAlts.get(c.alt)) {
        altToPred[c.alt] = SemanticContext.orContext(altToPred[c.alt] ?? null, c.semanticContext);
      }
    }
    let nPredAlts = 0;
    for (let i = 1; i < altCount + 1; i++) {
      const pred = altToPred[i] ?? null;
      if (pred === null) {
        altToPred[i] = SemanticContext.NONE;
      } else if (pred !== SemanticContext.NONE) {
        nPredAlts += 1;
      }
    }
    if (nPredAlts === 0) {
      altToPred = null;
    }
    if (_ParserATNSimulator.debug) {
      console.log("getPredsForAmbigAlts result " + arrayToString(altToPred));
    }
    return altToPred;
  }
  getPredicatePredictions(ambigAlts, altToPred) {
    const pairs = [];
    let containsPredicate = false;
    for (let i = 1; i < altToPred.length; i++) {
      const pred = altToPred[i];
      if (ambigAlts.get(i)) {
        pairs.push({ pred, alt: i });
      }
      if (pred !== SemanticContext.NONE) {
        containsPredicate = true;
      }
    }
    if (!containsPredicate) {
      return null;
    }
    return pairs;
  }
  /**
   * This method is used to improve the localization of error messages by
   * choosing an alternative rather than throwing a
   * {@link NoViableAltException} in particular prediction scenarios where the
   * {@link ERROR} state was reached during ATN simulation.
   *
   *
   * The default implementation of this method uses the following
   * algorithm to identify an ATN configuration which successfully parsed the
   * decision entry rule. Choosing such an alternative ensures that the
   * {@link ParserRuleContext} returned by the calling rule will be complete
   * and valid, and the syntax error will be reported later at a more
   * localized location.
   *
   * - If a syntactically valid path or paths reach the end of the decision rule and
   * they are semantically valid if predicated, return the min associated alt.
   * - Else, if a semantically invalid but syntactically valid path exist
   * or paths exist, return the minimum associated alt.
   *
   * - Otherwise, return {@link ATN//INVALID_ALT_NUMBER}.
   *
   *
   * In some scenarios, the algorithm described above could predict an
   * alternative which will result in a {@link FailedPredicateException} in
   * the parser. Specifically, this could occur if the *only* configuration
   * capable of successfully parsing to the end of the decision rule is
   * blocked by a semantic predicate. By choosing this alternative within
   * {@link adaptivePredict} instead of throwing a
   * {@link NoViableAltException}, the resulting
   * {@link FailedPredicateException} in the parser will identify the specific
   * predicate which is preventing the parser from successfully parsing the
   * decision rule, which helps developers identify and correct logic errors
   * in semantic predicates.
   *
   * @param configs The ATN configurations which were valid immediately before
   * the {@link ERROR} state was reached
   * @param outerContext The is the \gamma_0 initial parser context from the paper
   * or the parser stack at the instant before prediction commences.
   *
   * @returns The value to return from {@link adaptivePredict}, or
   * {@link ATN//INVALID_ALT_NUMBER} if a suitable alternative was not
   * identified and {@link adaptivePredict} should report an error instead
   */
  getSynValidOrSemInvalidAltThatFinishedDecisionEntryRule(configs, outerContext) {
    const splitConfigs = this.splitAccordingToSemanticValidity(configs, outerContext);
    const semValidConfigs = splitConfigs[0];
    const semInvalidConfigs = splitConfigs[1];
    let alt = this.getAltThatFinishedDecisionEntryRule(semValidConfigs);
    if (alt !== ATN.INVALID_ALT_NUMBER) {
      return alt;
    }
    if (semInvalidConfigs.length > 0) {
      alt = this.getAltThatFinishedDecisionEntryRule(semInvalidConfigs);
      if (alt !== ATN.INVALID_ALT_NUMBER) {
        return alt;
      }
    }
    return ATN.INVALID_ALT_NUMBER;
  }
  getAltThatFinishedDecisionEntryRule(configs) {
    const alts = [];
    for (const c of configs) {
      if (c.reachesIntoOuterContext || c.state instanceof RuleStopState && c.context.hasEmptyPath()) {
        if (alts.indexOf(c.alt) < 0) {
          alts.push(c.alt);
        }
      }
    }
    if (alts.length === 0) {
      return ATN.INVALID_ALT_NUMBER;
    } else {
      return Math.min(...alts);
    }
  }
  /**
   * Walk the list of configurations and split them according to
   * those that have preds evaluating to true/false.  If no pred, assume
   * true pred and include in succeeded set.  Returns Pair of sets.
   *
   * Create a new set so as not to alter the incoming parameter.
   *
   * Assumption: the input stream has been restored to the starting point
   * prediction, which is where predicates need to evaluate.
   */
  splitAccordingToSemanticValidity(configs, outerContext) {
    const succeeded = new ATNConfigSet(configs.fullCtx);
    const failed = new ATNConfigSet(configs.fullCtx);
    for (const c of configs) {
      if (c.semanticContext !== SemanticContext.NONE) {
        const predicateEvaluationResult = c.semanticContext.evaluate(this.parser, outerContext);
        if (predicateEvaluationResult) {
          succeeded.add(c);
        } else {
          failed.add(c);
        }
      } else {
        succeeded.add(c);
      }
    }
    return [succeeded, failed];
  }
  /**
   * Look through a list of predicate/alt pairs, returning alts for the
   * pairs that win. A `NONE` predicate indicates an alt containing an
   * unpredicated config which behaves as "always true." If !complete
   * then we stop at the first predicate that evaluates to true. This
   * includes pairs with null predicates.
   */
  evalSemanticContext(predPredictions, outerContext, complete) {
    const predictions = new BitSet();
    for (const pair of predPredictions) {
      if (pair.pred === SemanticContext.NONE) {
        predictions.set(pair.alt);
        if (!complete) {
          break;
        }
        continue;
      }
      const predicateEvaluationResult = pair.pred.evaluate(this.parser, outerContext);
      if (_ParserATNSimulator.debug || _ParserATNSimulator.dfaDebug) {
        console.log("eval pred " + pair + "=" + predicateEvaluationResult);
      }
      if (predicateEvaluationResult) {
        predictions.set(pair.alt);
        if (!complete) {
          break;
        }
      }
    }
    return predictions;
  }
  // TODO: If we are doing predicates, there is no point in pursuing
  //     closure operations if we reach a DFA state that uniquely predicts
  //     alternative. We will not be caching that DFA state and it is a
  //     waste to pursue the closure. Might have to advance when we do
  //     ambig detection thought :(
  //
  closure(config, configs, closureBusy, collectPredicates, fullCtx, treatEofAsEpsilon) {
    const initialDepth = 0;
    this.closureCheckingStopState(
      config,
      configs,
      closureBusy,
      collectPredicates,
      fullCtx,
      initialDepth,
      treatEofAsEpsilon
    );
  }
  closureCheckingStopState(config, configs, closureBusy, collectPredicates, fullCtx, depth, treatEofAsEpsilon) {
    if (_ParserATNSimulator.traceATNSimulator || _ParserATNSimulator.debugClosure) {
      console.log("closure(" + config.toString(this.parser, true) + ")");
    }
    if (config.state instanceof RuleStopState) {
      if (config.context && !config.context.isEmpty()) {
        for (let i = 0; i < config.context.length; i++) {
          if (config.context.getReturnState(i) === PredictionContext.EMPTY_RETURN_STATE) {
            if (fullCtx) {
              configs.add(
                ATNConfig.createWithConfig(
                  config.state,
                  config,
                  PredictionContext.EMPTY
                ),
                this.mergeCache
              );
              continue;
            } else {
              if (_ParserATNSimulator.debug) {
                console.log("FALLING off rule " + this.getRuleName(config.state.ruleIndex));
              }
              this.closure_(
                config,
                configs,
                closureBusy,
                collectPredicates,
                fullCtx,
                depth,
                treatEofAsEpsilon
              );
            }
            continue;
          }
          const returnState = this.atn.states[config.context.getReturnState(i)];
          const newContext = config.context.getParent(i);
          const c = ATNConfig.createWithContext(returnState, config.alt, newContext, config.semanticContext);
          c.reachesIntoOuterContext = config.reachesIntoOuterContext;
          this.closureCheckingStopState(
            c,
            configs,
            closureBusy,
            collectPredicates,
            fullCtx,
            depth - 1,
            treatEofAsEpsilon
          );
        }
        return;
      } else if (fullCtx) {
        configs.add(config, this.mergeCache);
        return;
      } else {
        if (_ParserATNSimulator.debug) {
          console.log("FALLING off rule " + this.getRuleName(config.state.ruleIndex));
        }
      }
    }
    this.closure_(config, configs, closureBusy, collectPredicates, fullCtx, depth, treatEofAsEpsilon);
  }
  // Do the actual work of walking epsilon edges//
  closure_(config, configs, closureBusy, collectPredicates, fullCtx, depth, treatEofAsEpsilon) {
    const p = config.state;
    if (!p.epsilonOnlyTransitions) {
      configs.add(config, this.mergeCache);
    }
    for (let i = 0; i < p.transitions.length; i++) {
      if (i === 0 && this.canDropLoopEntryEdgeInLeftRecursiveRule(config)) {
        continue;
      }
      const t = p.transitions[i];
      const continueCollecting = collectPredicates && !(t instanceof ActionTransition);
      const c = this.getEpsilonTarget(config, t, continueCollecting, depth === 0, fullCtx, treatEofAsEpsilon);
      if (c) {
        let newDepth = depth;
        if (config.state.constructor.stateType === ATNState.RULE_STOP) {
          if (this.predictionState.dfa && this.predictionState?.dfa.isPrecedenceDfa) {
            const outermostPrecedenceReturn = t.outermostPrecedenceReturn;
            if (outermostPrecedenceReturn === this.predictionState?.dfa.atnStartState?.ruleIndex) {
              c.precedenceFilterSuppressed = true;
            }
          }
          c.reachesIntoOuterContext = true;
          if (closureBusy.getOrAdd(c) !== c) {
            continue;
          }
          configs.dipsIntoOuterContext = true;
          newDepth -= 1;
          if (_ParserATNSimulator.debug) {
            console.log("dips into outer ctx: " + c);
          }
        } else {
          if (!t.isEpsilon && closureBusy.getOrAdd(c) !== c) {
            continue;
          }
          if (t instanceof RuleTransition) {
            if (newDepth >= 0) {
              newDepth += 1;
            }
          }
        }
        this.closureCheckingStopState(
          c,
          configs,
          closureBusy,
          continueCollecting,
          fullCtx,
          newDepth,
          treatEofAsEpsilon
        );
      }
    }
  }
  canDropLoopEntryEdgeInLeftRecursiveRule(config) {
    const p = config.state;
    if (p.constructor.stateType !== ATNState.STAR_LOOP_ENTRY || !config.context) {
      return false;
    }
    if (!p.precedenceRuleDecision || config.context.isEmpty() || config.context.hasEmptyPath()) {
      return false;
    }
    const numCtxs = config.context.length;
    for (let i = 0; i < numCtxs; i++) {
      const returnState = this.atn.states[config.context.getReturnState(i)];
      if (returnState.ruleIndex !== p.ruleIndex) {
        return false;
      }
    }
    const decisionStartState = p.transitions[0].target;
    const blockEndStateNum = decisionStartState.endState.stateNumber;
    const blockEndState = this.atn.states[blockEndStateNum];
    for (let i = 0; i < numCtxs; i++) {
      const returnStateNumber = config.context.getReturnState(i);
      const returnState = this.atn.states[returnStateNumber];
      if (returnState.transitions.length !== 1 || !returnState.transitions[0].isEpsilon) {
        return false;
      }
      const returnStateTarget = returnState.transitions[0].target;
      if (returnState.constructor.stateType === ATNState.BLOCK_END && returnStateTarget === p) {
        continue;
      }
      if (returnState === blockEndState) {
        continue;
      }
      if (returnStateTarget === blockEndState) {
        continue;
      }
      if (returnStateTarget.constructor.stateType === ATNState.BLOCK_END && returnStateTarget.transitions.length === 1 && returnStateTarget.transitions[0].isEpsilon && returnStateTarget.transitions[0].target === p) {
        continue;
      }
      return false;
    }
    return true;
  }
  getEpsilonTarget(config, t, collectPredicates, inContext, fullCtx, treatEofAsEpsilon) {
    switch (t.transitionType) {
      case Transition.RULE: {
        return this.ruleTransition(config, t);
      }
      case Transition.PRECEDENCE: {
        return this.precedenceTransition(
          config,
          t,
          collectPredicates,
          inContext,
          fullCtx
        );
      }
      case Transition.PREDICATE: {
        return this.predTransition(config, t, collectPredicates, inContext, fullCtx);
      }
      case Transition.ACTION: {
        if (_ParserATNSimulator.debug) {
          const at = t;
          const index = at.actionIndex === -1 ? 65535 : at.actionIndex;
          console.log("ACTION edge " + at.ruleIndex + ":" + index);
        }
        return ATNConfig.createWithConfig(t.target, config);
      }
      case Transition.EPSILON: {
        return ATNConfig.createWithConfig(t.target, config);
      }
      case Transition.ATOM:
      case Transition.RANGE:
      case Transition.SET: {
        if (treatEofAsEpsilon) {
          if (t.matches(Token.EOF, 0, 1)) {
            return ATNConfig.createWithConfig(t.target, config);
          }
        }
        return null;
      }
      default:
        return null;
    }
  }
  precedenceTransition(config, pt, collectPredicates, inContext, fullCtx) {
    if (_ParserATNSimulator.debug) {
      console.log("PRED (collectPredicates=" + collectPredicates + ") " + pt.precedence + ">=_p, ctx dependent=true");
      if (this.parser !== null) {
        console.log("context surrounding pred is " + arrayToString(this.parser.getRuleInvocationStack()));
      }
    }
    let c = null;
    if (collectPredicates && inContext) {
      if (fullCtx && this.predictionState?.input) {
        const currentPosition = this.predictionState.input.index;
        this.predictionState.input.seek(this.predictionState.startIndex);
        const predSucceeds = pt.getPredicate().evaluate(this.parser, this.predictionState.outerContext);
        this.predictionState.input.seek(currentPosition);
        if (predSucceeds) {
          c = ATNConfig.createWithConfig(pt.target, config);
        }
      } else {
        const newSemCtx = SemanticContext.andContext(config.semanticContext, pt.getPredicate());
        c = ATNConfig.createWithSemanticContext(pt.target, config, newSemCtx);
      }
    } else {
      c = ATNConfig.createWithConfig(pt.target, config);
    }
    if (_ParserATNSimulator.debug) {
      console.log("config from pred transition=" + c);
    }
    return c;
  }
  predTransition(config, pt, collectPredicates, inContext, fullCtx) {
    if (_ParserATNSimulator.debug) {
      console.log("PRED (collectPredicates=" + collectPredicates + ") " + pt.ruleIndex + ":" + pt.predIndex + ", ctx dependent=" + pt.isCtxDependent);
      if (this.parser !== null) {
        console.log("context surrounding pred is " + arrayToString(this.parser.getRuleInvocationStack()));
      }
    }
    let c = null;
    if (collectPredicates && (pt.isCtxDependent && inContext || !pt.isCtxDependent)) {
      if (fullCtx && this.predictionState?.input) {
        const currentPosition = this.predictionState.input.index;
        this.predictionState.input.seek(this.predictionState.startIndex);
        const predSucceeds = pt.getPredicate().evaluate(this.parser, this.predictionState.outerContext);
        this.predictionState.input.seek(currentPosition);
        if (predSucceeds) {
          c = ATNConfig.createWithConfig(pt.target, config);
        }
      } else {
        const newSemCtx = SemanticContext.andContext(config.semanticContext, pt.getPredicate());
        c = ATNConfig.createWithSemanticContext(pt.target, config, newSemCtx);
      }
    } else {
      c = ATNConfig.createWithConfig(pt.target, config);
    }
    if (_ParserATNSimulator.debug) {
      console.log("config from pred transition=" + c);
    }
    return c;
  }
  ruleTransition(config, t) {
    if (_ParserATNSimulator.debug) {
      console.log("CALL rule " + this.getRuleName(t.target.ruleIndex) + ", ctx=" + config.context);
    }
    const returnState = t.followState;
    const newContext = SingletonPredictionContext.create(config.context ?? void 0, returnState.stateNumber);
    return ATNConfig.createWithConfig(t.target, config, newContext);
  }
  getConflictingAlts(configs) {
    const altSets = PredictionMode.getConflictingAltSubsets(configs);
    return PredictionMode.getAlts(altSets);
  }
  /**
   * Sam pointed out a problem with the previous definition, v3, of
   * ambiguous states. If we have another state associated with conflicting
   * alternatives, we should keep going. For example, the following grammar
   *
   * s : (ID | ID ID?) ';' ;
   *
   * When the ATN simulation reaches the state before ';', it has a DFA
   * state that looks like: [12|1|[], 6|2|[], 12|2|[]]. Naturally
   * 12|1|[] and 12|2|[] conflict, but we cannot stop processing this node
   * because alternative to has another way to continue, via [6|2|[]].
   * The key is that we have a single state that has config's only associated
   * with a single alternative, 2, and crucially the state transitions
   * among the configurations are all non-epsilon transitions. That means
   * we don't consider any conflicts that include alternative 2. So, we
   * ignore the conflict between alts 1 and 2. We ignore a set of
   * conflicting alts when there is an intersection with an alternative
   * associated with a single alt state in the state -> config-list map.
   *
   * It's also the case that we might have two conflicting configurations but
   * also a 3rd nonconflicting configuration for a different alternative:
   * [1|1|[], 1|2|[], 8|3|[]]. This can come about from grammar:
   *
   * a : A | A | A B ;
   *
   * After matching input A, we reach the stop state for rule A, state 1.
   * State 8 is the state right before B. Clearly alternatives 1 and 2
   * conflict and no amount of further lookahead will separate the two.
   * However, alternative 3 will be able to continue and so we do not
   * stop working on this state. In the previous example, we're concerned
   * with states associated with the conflicting alternatives. Here alt
   * 3 is not associated with the conflicting configs, but since we can continue
   * looking for input reasonably, I don't declare the state done. We
   * ignore a set of conflicting alts when we have an alternative
   * that we still need to pursue
   */
  getConflictingAltsOrUniqueAlt(configs) {
    let conflictingAlts;
    if (configs.uniqueAlt !== ATN.INVALID_ALT_NUMBER) {
      conflictingAlts = new BitSet();
      conflictingAlts.set(configs.uniqueAlt);
    } else {
      conflictingAlts = configs.conflictingAlts;
    }
    return conflictingAlts;
  }
  noViableAlt(input, outerContext, configs, startIndex) {
    return new NoViableAltException(this.parser, input, input.get(startIndex), input.LT(1), configs, outerContext);
  }
  /**
   * Add an edge to the DFA, if possible. This method calls
   * {@link addDFAState} to ensure the `to` state is present in the
   * DFA. If `from` is `null`, or if `t` is outside the
   * range of edges that can be represented in the DFA tables, this method
   * returns without adding the edge to the DFA.
   *
   * If `to` is `null`, this method returns `null`.
   * Otherwise, this method returns the {@link DFAState} returned by calling
   * {@link addDFAState} for the `to` state.
   *
   * @param dfa The DFA
   * @param from The source state for the edge
   * @param t The input symbol
   * @param to The target state for the edge
   *
   * @returns If `to` is `null`, this method returns `null`;
   * otherwise this method returns the result of calling {@link addDFAState}
   * on `to`
   */
  addDFAEdge(dfa, from, t, to) {
    if (_ParserATNSimulator.debug) {
      console.log("EDGE " + from + " -> " + to + " upon " + this.getTokenName(t));
    }
    to = this.addDFAState(dfa, to);
    if (t < -1 || t > this.atn.maxTokenType) {
      return to;
    }
    if (_ParserATNSimulator.debug) {
      console.log("DFA=\n" + dfa.toString(this.parser != null ? this.parser.vocabulary : Vocabulary.EMPTY_VOCABULARY));
    }
    from.edges[t + 1] = to;
    return to;
  }
  /**
   * Add state `D` to the DFA if it is not already present, and return
   * the actual instance stored in the DFA. If a state equivalent to `D`
   * is already in the DFA, the existing state is returned. Otherwise this
   * method returns `D` after adding it to the DFA.
   *
   * If `D` is {@link ERROR}, this method returns {@link ERROR} and
   * does not change the DFA.
   *
   * @param dfa The dfa.
   * @param newState The DFA state to add.
   *
   * @returns The state stored in the DFA. This will be either the existing state if `newState` is already in
   *          the DFA, or `newState` itself if the state was not already present.
   */
  addDFAState(dfa, newState) {
    if (newState === ATNSimulator.ERROR) {
      return newState;
    }
    const existing = dfa.getState(newState);
    if (existing !== null) {
      return existing;
    }
    if (!newState.configs.readOnly) {
      newState.configs.optimizeConfigs(this);
      newState.configs.setReadonly(true);
    }
    if (_ParserATNSimulator.traceATNSimulator) {
      console.log("addDFAState new " + newState);
    }
    dfa.addState(newState);
    return newState;
  }
  reportAttemptingFullContext(dfa, conflictingAlts, configs, startIndex, stopIndex) {
    if (_ParserATNSimulator.debug || _ParserATNSimulator.retryDebug) {
      const interval = new Interval(startIndex, stopIndex + 1);
      console.log("reportAttemptingFullContext decision=" + dfa.decision + ":" + configs + ", input=" + this.parser.tokenStream.getTextFromInterval(interval));
    }
    this.parser.errorListenerDispatch.reportAttemptingFullContext(
      this.parser,
      dfa,
      startIndex,
      stopIndex,
      conflictingAlts,
      configs
    );
  }
  reportContextSensitivity(dfa, prediction, configs, startIndex, stopIndex) {
    if (_ParserATNSimulator.debug || _ParserATNSimulator.retryDebug) {
      const interval = new Interval(startIndex, stopIndex + 1);
      console.log("reportContextSensitivity decision=" + dfa.decision + ":" + configs + ", input=" + this.parser.tokenStream.getTextFromInterval(interval));
    }
    this.parser.errorListenerDispatch.reportContextSensitivity(
      this.parser,
      dfa,
      startIndex,
      stopIndex,
      prediction,
      configs
    );
  }
  // If context sensitive parsing, we know it's ambiguity not conflict.
  reportAmbiguity(dfa, D, startIndex, stopIndex, exact, ambigAlts, configs) {
    if (_ParserATNSimulator.debug || _ParserATNSimulator.retryDebug) {
      const interval = new Interval(startIndex, stopIndex + 1);
      console.log("reportAmbiguity " + ambigAlts + ":" + configs + ", input=" + this.parser.tokenStream.getTextFromInterval(interval));
    }
    this.parser.errorListenerDispatch.reportAmbiguity(
      this.parser,
      dfa,
      startIndex,
      stopIndex,
      exact,
      ambigAlts,
      configs
    );
  }
};

// src/atn/PredictionContextCache.ts
var PredictionContextCache = class {
  static {
    __name(this, "PredictionContextCache");
  }
  cache = new HashMap(ObjectEqualityComparator.instance);
  /**
   * Add a context to the cache and return it. If the context already exists,
   * return that one instead and do not add a new context to the cache.
   * Protect shared cache from unsafe thread access.
   *
   * @param ctx tbd
   * @returns tbd
   */
  add(ctx) {
    if (ctx === PredictionContext.EMPTY) {
      return ctx;
    }
    const existing = this.cache.get(ctx);
    if (existing) {
      return existing;
    }
    this.cache.set(ctx, ctx);
    return ctx;
  }
  get(ctx) {
    return this.cache.get(ctx);
  }
  get length() {
    return this.cache.size;
  }
};

// src/atn/ProfilingATNSimulator.ts
var ProfilingATNSimulator = class extends ParserATNSimulator {
  static {
    __name(this, "ProfilingATNSimulator");
  }
  decisions;
  numDecisions = 0;
  currentDecision = 0;
  currentState;
  /**
   * At the point of LL failover, we record how SLL would resolve the conflict so that
   *  we can determine whether or not a decision / input pair is context-sensitive.
   *  If LL gives a different result than SLL's predicted alternative, we have a
   *  context sensitivity for sure. The converse is not necessarily true, however.
   *  It's possible that after conflict resolution chooses minimum alternatives,
   *  SLL could get the same answer as LL. Regardless of whether or not the result indicates
   *  an ambiguity, it is not treated as a context sensitivity because LL prediction
   *  was not required in order to produce a correct prediction for this decision and input sequence.
   *  It may in fact still be a context sensitivity but we don't know by looking at the
   *  minimum alternatives for the current input.
   */
  conflictingAltResolvedBySLL;
  #sllStopIndex = 0;
  #llStopIndex = 0;
  constructor(parser) {
    const sharedContextCache = parser.interpreter.sharedContextCache;
    super(parser, parser.interpreter.atn, parser.interpreter.decisionToDFA, sharedContextCache);
    if (sharedContextCache) {
      this.numDecisions = this.atn.decisionToState.length;
      this.decisions = new Array(this.numDecisions);
      for (let i = 0; i < this.numDecisions; i++) {
        this.decisions[i] = new DecisionInfo(i);
      }
    }
  }
  adaptivePredict(input, decision, outerContext) {
    try {
      this.#sllStopIndex = -1;
      this.#llStopIndex = -1;
      this.currentDecision = decision;
      const start = performance.now();
      const alt = super.adaptivePredict(input, decision, outerContext);
      const stop = performance.now();
      this.decisions[decision].timeInPrediction += stop - start;
      this.decisions[decision].invocations++;
      const sllLook = this.#sllStopIndex - this.predictionState.startIndex + 1;
      this.decisions[decision].sllTotalLook += sllLook;
      this.decisions[decision].sllMinLook = this.decisions[decision].sllMinLook === 0 ? sllLook : Math.min(this.decisions[decision].sllMinLook, sllLook);
      if (sllLook > this.decisions[decision].sllMaxLook) {
        this.decisions[decision].sllMaxLook = sllLook;
        this.decisions[decision].sllMaxLookEvent = {
          decision,
          configs: null,
          predictedAlt: alt,
          input,
          startIndex: this.predictionState.startIndex,
          stopIndex: this.#sllStopIndex,
          fullCtx: false
        };
      }
      if (this.#llStopIndex >= 0) {
        const llLook = this.#llStopIndex - this.predictionState.startIndex + 1;
        this.decisions[decision].llTotalLook += llLook;
        this.decisions[decision].llMinLook = this.decisions[decision].llMinLook === 0 ? llLook : Math.min(this.decisions[decision].llMinLook, llLook);
        if (llLook > this.decisions[decision].llMaxLook) {
          this.decisions[decision].llMaxLook = llLook;
          this.decisions[decision].llMaxLookEvent = {
            decision,
            configs: null,
            predictedAlt: alt,
            input,
            startIndex: this.predictionState.startIndex,
            stopIndex: this.#llStopIndex,
            fullCtx: true
          };
        }
      }
      return alt;
    } finally {
      this.currentDecision = -1;
    }
  }
  getExistingTargetState(previousD, t) {
    if (this.predictionState?.input) {
      this.#sllStopIndex = this.predictionState.input.index;
      const existingTargetState = super.getExistingTargetState(previousD, t);
      if (existingTargetState !== null) {
        this.decisions[this.currentDecision].sllDFATransitions++;
        if (existingTargetState === ATNSimulator.ERROR) {
          this.decisions[this.currentDecision].errors.push({
            decision: this.currentDecision,
            configs: previousD.configs,
            input: this.predictionState.input,
            startIndex: this.predictionState.startIndex,
            stopIndex: this.#sllStopIndex,
            fullCtx: false
          });
        }
      }
      this.currentState = existingTargetState;
      return existingTargetState;
    }
    return void 0;
  }
  computeTargetState(dfa, previousD, t) {
    const state = super.computeTargetState(dfa, previousD, t);
    this.currentState = state;
    return state;
  }
  computeReachSet(closure, t, fullCtx) {
    if (fullCtx && this.predictionState?.input) {
      this.#llStopIndex = this.predictionState.input.index;
    }
    const reachConfigs = super.computeReachSet(closure, t, fullCtx);
    if (this.predictionState?.input) {
      if (fullCtx) {
        this.decisions[this.currentDecision].llATNTransitions++;
        if (reachConfigs === null) {
          this.decisions[this.currentDecision].errors.push({
            decision: this.currentDecision,
            configs: closure,
            input: this.predictionState.input,
            startIndex: this.predictionState.startIndex,
            stopIndex: this.#sllStopIndex,
            fullCtx: true
          });
        }
      } else {
        this.decisions[this.currentDecision].sllATNTransitions++;
        if (reachConfigs === null) {
          this.decisions[this.currentDecision].errors.push({
            decision: this.currentDecision,
            configs: closure,
            input: this.predictionState.input,
            startIndex: this.predictionState.startIndex,
            stopIndex: this.#sllStopIndex,
            fullCtx: false
          });
        }
      }
    }
    return reachConfigs;
  }
  reportAttemptingFullContext(dfa, conflictingAlts, configs, startIndex, stopIndex) {
    if (conflictingAlts !== null) {
      this.conflictingAltResolvedBySLL = conflictingAlts.nextSetBit(0);
    } else {
      this.conflictingAltResolvedBySLL = configs.getAlts().nextSetBit(0);
    }
    this.decisions[this.currentDecision].llFallback++;
    if (conflictingAlts) {
      super.reportAttemptingFullContext(dfa, conflictingAlts, configs, startIndex, stopIndex);
    }
  }
  reportContextSensitivity(dfa, prediction, configs, startIndex, stopIndex) {
    if (prediction !== this.conflictingAltResolvedBySLL && this.predictionState.input) {
      this.decisions[this.currentDecision].contextSensitivities.push({
        decision: this.currentDecision,
        configs,
        input: this.predictionState.input,
        startIndex,
        stopIndex,
        fullCtx: true
      });
    }
    super.reportContextSensitivity(dfa, prediction, configs, startIndex, stopIndex);
  }
  reportAmbiguity(dfa, state, startIndex, stopIndex, exact, ambigAlts, configs) {
    let prediction;
    if (ambigAlts) {
      prediction = ambigAlts.nextSetBit(0);
    } else {
      prediction = configs.getAlts().nextSetBit(0);
    }
    if (this.predictionState?.input) {
      if (configs.fullCtx && prediction !== this.conflictingAltResolvedBySLL) {
        this.decisions[this.currentDecision].contextSensitivities.push({
          decision: this.currentDecision,
          configs,
          input: this.predictionState.input,
          startIndex,
          stopIndex,
          fullCtx: true
        });
      }
      this.decisions[this.currentDecision].ambiguities.push({
        ambigAlts,
        decision: this.currentDecision,
        configs,
        input: this.predictionState.input,
        startIndex,
        stopIndex,
        fullCtx: configs.fullCtx
      });
    }
    super.reportAmbiguity(dfa, state, startIndex, stopIndex, exact, ambigAlts, configs);
  }
  getDecisionInfo() {
    return this.decisions;
  }
  getCurrentState() {
    return this.currentState;
  }
};

// src/dfa/PredPrediction.ts
var PredPrediction;
((PredPrediction2) => {
  PredPrediction2.toString = /* @__PURE__ */ __name((prediction) => {
    return `(${prediction.pred}, ${prediction.alt})`;
  }, "toString");
})(PredPrediction || (PredPrediction = {}));

// src/misc/ParseCancellationException.ts
var ParseCancellationException = class _ParseCancellationException extends Error {
  static {
    __name(this, "ParseCancellationException");
  }
  constructor(_e) {
    super();
    Error.captureStackTrace(this, _ParseCancellationException);
  }
};

// src/misc/InterpreterDataReader.ts
var InterpreterDataReader = class {
  static {
    __name(this, "InterpreterDataReader");
  }
  /**
   * The structure of the data file is very simple. Everything is line based with empty lines
   * separating the different parts. For lexers the layout is:
   * token literal names:
   * ...
   *
   * token symbolic names:
   * ...
   *
   * rule names:
   * ...
   *
   * channel names:
   * ...
   *
   * mode names:
   * ...
   *
   * atn:
   * a single line with comma separated int values, enclosed in a pair of squared brackets.
   *
   * Data for a parser does not contain channel and mode names.
   */
  static parseInterpreterData(source) {
    const ruleNames = [];
    const channels = [];
    const modes = [];
    const literalNames = [];
    const symbolicNames = [];
    const lines = source.split("\n");
    let index = 0;
    let line = lines[index++];
    if (line !== "token literal names:") {
      throw new Error("Unexpected data entry");
    }
    do {
      line = lines[index++];
      if (line.length === 0) {
        break;
      }
      literalNames.push(line === "null" ? null : line);
    } while (true);
    line = lines[index++];
    if (line !== "token symbolic names:") {
      throw new Error("Unexpected data entry");
    }
    do {
      line = lines[index++];
      if (line.length === 0) {
        break;
      }
      symbolicNames.push(line === "null" ? null : line);
    } while (true);
    line = lines[index++];
    if (line !== "rule names:") {
      throw new Error("Unexpected data entry");
    }
    do {
      line = lines[index++];
      if (line.length === 0) {
        break;
      }
      ruleNames.push(line);
    } while (true);
    line = lines[index++];
    if (line === "channel names:") {
      do {
        line = lines[index++];
        if (line.length === 0) {
          break;
        }
        channels.push(line);
      } while (true);
      line = lines[index++];
      if (line !== "mode names:") {
        throw new Error("Unexpected data entry");
      }
      do {
        line = lines[index++];
        if (line.length === 0) {
          break;
        }
        modes.push(line);
      } while (true);
    }
    line = lines[index++];
    if (line !== "atn:") {
      throw new Error("Unexpected data entry");
    }
    line = lines[index++];
    const elements = line.split(",");
    let value;
    const serializedATN = [];
    for (let i = 0; i < elements.length; ++i) {
      const element = elements[i];
      if (element.startsWith("[")) {
        value = Number(element.substring(1).trim());
      } else if (element.endsWith("]")) {
        value = Number(element.substring(0, element.length - 1).trim());
      } else {
        value = Number(element.trim());
      }
      serializedATN[i] = value;
    }
    const deserializer = new ATNDeserializer();
    return {
      atn: deserializer.deserialize(serializedATN),
      vocabulary: new Vocabulary(literalNames, symbolicNames, []),
      ruleNames,
      channels: channels.length > 0 ? channels : void 0,
      modes: modes.length > 0 ? modes : void 0
    };
  }
};

// src/tree/AbstractParseTreeVisitor.ts
var AbstractParseTreeVisitor = class {
  static {
    __name(this, "AbstractParseTreeVisitor");
  }
  visit(tree) {
    return tree.accept(this);
  }
  visitChildren(node) {
    let result = this.defaultResult();
    const n2 = node.getChildCount();
    for (let i = 0; i < n2; i++) {
      if (!this.shouldVisitNextChild(node, result)) {
        break;
      }
      const c = node.getChild(i);
      if (c) {
        const childResult = c.accept(this);
        result = this.aggregateResult(result, childResult);
      }
    }
    return result;
  }
  visitTerminal(_node) {
    return this.defaultResult();
  }
  visitErrorNode(_node) {
    return this.defaultResult();
  }
  defaultResult() {
    return null;
  }
  shouldVisitNextChild(_node, _currentResult) {
    return true;
  }
  aggregateResult(aggregate, nextResult) {
    return nextResult;
  }
};

// src/tree/ParseTreeWalker.ts
var ParseTreeWalker = class _ParseTreeWalker {
  static {
    __name(this, "ParseTreeWalker");
  }
  static DEFAULT = new _ParseTreeWalker();
  /**
   * Performs a walk on the given parse tree starting at the root and going down recursively
   * with depth-first search. On each node, {@link ParseTreeWalker.enterRule} is called before
   * recursively walking down into child nodes, then
   * {@link ParseTreeWalker.exitRule} is called after the recursive call to wind up.
   *
   * @param listener The listener used by the walker to process grammar rules
   * @param t The parse tree to be walked on
   */
  walk(listener, t) {
    const errorNode = t instanceof ErrorNode;
    if (errorNode) {
      listener.visitErrorNode(t);
    } else if (t instanceof TerminalNode) {
      listener.visitTerminal(t);
    } else {
      const r = t;
      this.enterRule(listener, r);
      for (let i = 0; i < t.getChildCount(); i++) {
        this.walk(listener, t.getChild(i));
      }
      this.exitRule(listener, r);
    }
  }
  /**
   * Enters a grammar rule by first triggering the generic event {@link ParseTreeListener.enterEveryRule}
   * then by triggering the event specific to the given parse tree node
   *
   * @param listener The listener responding to the trigger events
   * @param r The grammar rule containing the rule context
   */
  enterRule(listener, r) {
    const ctx = r.ruleContext;
    listener.enterEveryRule(ctx);
    ctx.enterRule(listener);
  }
  /**
   * Exits a grammar rule by first triggering the event specific to the given parse tree node
   * then by triggering the generic event {@link ParseTreeListener.exitEveryRule}
   *
   * @param listener The listener responding to the trigger events
   * @param r The grammar rule containing the rule context
   */
  exitRule(listener, r) {
    const ctx = r.ruleContext;
    ctx.exitRule(listener);
    listener.exitEveryRule(ctx);
  }
};

// src/CharStream.ts
var CharStream;
((CharStream2) => {
  CharStream2.fromString = /* @__PURE__ */ __name((str) => {
    return new CharStreamImpl(str);
  }, "fromString");
})(CharStream || (CharStream = {}));
var CharStreamImpl = class {
  static {
    __name(this, "CharStreamImpl");
  }
  name = "";
  index = 0;
  data;
  constructor(input) {
    const codePoints = [];
    for (const char of input) {
      codePoints.push(char.codePointAt(0));
    }
    this.data = new Uint32Array(codePoints);
  }
  /**
   * Reset the stream so that it's in the same state it was
   * when the object was created *except* the data array is not
   * touched.
   */
  reset() {
    this.index = 0;
  }
  consume() {
    if (this.index >= this.data.length) {
      throw new Error("cannot consume EOF");
    }
    this.index += 1;
  }
  LA(offset) {
    if (offset === 0) {
      return 0;
    }
    if (offset < 0) {
      offset += 1;
    }
    const pos = this.index + offset - 1;
    if (pos < 0 || pos >= this.data.length) {
      return Token.EOF;
    }
    return this.data[pos];
  }
  // mark/release do nothing; we have entire buffer
  mark() {
    return -1;
  }
  release(_marker) {
  }
  /**
   * consume() ahead until p==_index; can't just set p=_index as we must
   * update line and column. If we seek backwards, just set p
   */
  seek(index) {
    if (index <= this.index) {
      this.index = index;
      return;
    }
    this.index = Math.min(index, this.data.length);
  }
  getTextFromRange(start, stop) {
    stop = stop ?? this.data.length - 1;
    if (stop >= this.data.length) {
      stop = this.data.length - 1;
    }
    if (start >= this.data.length) {
      return "";
    }
    return this.#stringFromRange(start, stop + 1);
  }
  getTextFromInterval(interval) {
    const start = interval.start;
    let stop = interval.stop;
    if (stop >= this.data.length) {
      stop = this.data.length - 1;
    }
    if (start >= this.data.length) {
      return "";
    }
    return this.#stringFromRange(start, stop + 1);
  }
  toString() {
    return this.#stringFromRange(0);
  }
  get size() {
    return this.data.length;
  }
  getSourceName() {
    if (this.name) {
      return this.name;
    }
    return IntStream.UNKNOWN_SOURCE_NAME;
  }
  #stringFromRange(start, stop) {
    const data = this.data.slice(start, stop);
    let result = "";
    data.forEach((value) => {
      result += String.fromCodePoint(value);
    });
    return result;
  }
};

// src/BufferedTokenStream.ts
var BufferedTokenStream = class {
  static {
    __name(this, "BufferedTokenStream");
  }
  /**
   * The {@link TokenSource} from which tokens for this stream are fetched.
   */
  tokenSource;
  /**
   * A collection of all tokens fetched from the token source. The list is
   * considered a complete view of the input once {@link fetchedEOF} is set
   * to `true`.
   */
  tokens = [];
  /**
   * The index into {@link tokens} of the current token (next token to
   * {@link consume}). {@link tokens}`[p]` should be
   * {@link LT LT(1)}.
   *
   * This field is set to -1 when the stream is first constructed or when
   * {@link setTokenSource} is called, indicating that the first token has
   * not yet been fetched from the token source. For additional information,
   * see the documentation of {@link IntStream} for a description of
   * Initializing Methods.
   */
  p = -1;
  /**
   * Indicates whether the {@link Token.EOF} token has been fetched from
   * {@link tokenSource} and added to {@link tokens}. This field improves
   * performance for the following cases:
   *
   * - {@link consume}: The lookahead check in {@link consume} to prevent
   * consuming the EOF symbol is optimized by checking the values of
   * {@link fetchedEOF} and {@link p} instead of calling {@link LA}.
   * - {@link fetch}: The check to prevent adding multiple EOF symbols into
   * {@link tokens} is trivial with this field.
   */
  fetchedEOF = false;
  constructor(tokenSource) {
    this.tokenSource = tokenSource;
  }
  mark() {
    return 0;
  }
  release(_marker) {
  }
  reset() {
    this.seek(0);
  }
  seek(index) {
    this.lazyInit();
    this.p = this.adjustSeekIndex(index);
  }
  get size() {
    return this.tokens.length;
  }
  get index() {
    return this.p;
  }
  get(index) {
    this.lazyInit();
    return this.tokens[index];
  }
  consume() {
    let skipEofCheck = false;
    if (this.p >= 0) {
      if (this.fetchedEOF) {
        skipEofCheck = this.p < this.tokens.length - 1;
      } else {
        skipEofCheck = this.p < this.tokens.length;
      }
    } else {
      skipEofCheck = false;
    }
    if (!skipEofCheck && this.LA(1) === Token.EOF) {
      throw new Error("cannot consume EOF");
    }
    if (this.sync(this.p + 1)) {
      this.p = this.adjustSeekIndex(this.p + 1);
    }
  }
  /**
   * Make sure index `i` in tokens has a token.
   *
   * @returns {boolean} `true` if a token is located at index `i`, otherwise `false`.
   */
  sync(i) {
    const n2 = i - this.tokens.length + 1;
    if (n2 > 0) {
      const fetched = this.fetch(n2);
      return fetched >= n2;
    }
    return true;
  }
  /**
   * Add `n` elements to buffer.
   *
   * @returns {number} The actual number of elements added to the buffer.
   */
  fetch(n2) {
    if (this.fetchedEOF) {
      return 0;
    }
    for (let i = 0; i < n2; i++) {
      const t = this.tokenSource.nextToken();
      t.tokenIndex = this.tokens.length;
      this.tokens.push(t);
      if (t.type === Token.EOF) {
        this.fetchedEOF = true;
        return i + 1;
      }
    }
    return n2;
  }
  /** Get all tokens from start..stop, inclusively. */
  getTokens(start, stop, types) {
    this.lazyInit();
    if (start === void 0 && stop === void 0) {
      return this.tokens;
    }
    start ??= 0;
    if (stop === void 0) {
      stop = this.tokens.length - 1;
    }
    if (start < 0 || stop >= this.tokens.length || stop < 0 || start >= this.tokens.length) {
      throw new RangeError("start " + start + " or stop " + stop + " not in 0.." + (this.tokens.length - 1));
    }
    if (start > stop) {
      return [];
    }
    if (types === void 0) {
      return this.tokens.slice(start, stop + 1);
    }
    const subset = [];
    if (stop >= this.tokens.length) {
      stop = this.tokens.length - 1;
    }
    for (let i = start; i < stop; i++) {
      const t = this.tokens[i];
      if (t.type === Token.EOF) {
        subset.push(t);
        break;
      }
      if (types.has(t.type)) {
        subset.push(t);
      }
    }
    return subset;
  }
  LA(k) {
    return this.LT(k)?.type ?? Token.INVALID_TYPE;
  }
  LB(k) {
    if (this.p - k < 0) {
      return null;
    }
    return this.tokens[this.p - k];
  }
  LT(k) {
    this.lazyInit();
    if (k === 0) {
      return null;
    }
    if (k < 0) {
      return this.LB(-k);
    }
    const i = this.p + k - 1;
    this.sync(i);
    if (i >= this.tokens.length) {
      return this.tokens[this.tokens.length - 1];
    }
    return this.tokens[i];
  }
  /**
   * Allowed derived classes to modify the behavior of operations which change
   * the current stream position by adjusting the target token index of a seek
   * operation. The default implementation simply returns `i`. If an
   * exception is thrown in this method, the current stream index should not be
   * changed.
   *
   * For example, {@link CommonTokenStream} overrides this method to ensure that
   * the seek target is always an on-channel token.
   *
   * @param  i The target token index.
   *
   * @returns The adjusted target token index.
   */
  adjustSeekIndex(i) {
    return i;
  }
  lazyInit() {
    if (this.p === -1) {
      this.setup();
    }
  }
  setup() {
    this.sync(0);
    this.p = this.adjustSeekIndex(0);
  }
  /** Reset this token stream by setting its token source. */
  setTokenSource(tokenSource) {
    this.tokenSource = tokenSource;
    this.tokens = [];
    this.p = -1;
    this.fetchedEOF = false;
  }
  /**
   * Given a starting index, return the index of the next token on channel.
   * Return i if tokens[i] is on channel. Return -1 if there are no tokens
   * on channel between i and EOF.
   */
  nextTokenOnChannel(i, channel) {
    this.sync(i);
    if (i >= this.tokens.length) {
      return -1;
    }
    let token = this.tokens[i];
    while (token.channel !== channel) {
      if (token.type === Token.EOF) {
        return -1;
      }
      i += 1;
      this.sync(i);
      token = this.tokens[i];
    }
    return i;
  }
  /**
   * Given a starting index, return the index of the previous token on
   * channel. Return `i` if `tokens[i]` is on channel. Return -1
   * if there are no tokens on channel between `i` and 0.
   *
   * If `i` specifies an index at or after the EOF token, the EOF token
   * index is returned. This is due to the fact that the EOF token is treated
   * as though it were on every channel.
   */
  previousTokenOnChannel(i, channel) {
    if (i >= this.tokens.length) {
      return this.tokens.length - 1;
    }
    while (i >= 0) {
      const token = this.tokens[i];
      if (token.type === Token.EOF || token.channel === channel) {
        return i;
      }
      --i;
    }
    return i;
  }
  /**
   * Collect all tokens on specified channel to the right of
   * the current token up until we see a token on DEFAULT_TOKEN_CHANNEL or
   * EOF. If channel is -1, find any non default channel token.
   */
  getHiddenTokensToRight(tokenIndex, channel) {
    if (channel === void 0) {
      channel = -1;
    }
    this.lazyInit();
    if (tokenIndex < 0 || tokenIndex >= this.tokens.length) {
      throw new Error(`${tokenIndex} not in 0..${this.tokens.length - 1}`);
    }
    const nextOnChannel = this.nextTokenOnChannel(tokenIndex + 1, Lexer.DEFAULT_TOKEN_CHANNEL);
    const from = tokenIndex + 1;
    const to = nextOnChannel === -1 ? this.tokens.length - 1 : nextOnChannel;
    return this.filterForChannel(from, to, channel);
  }
  /**
   * Collect all tokens on specified channel to the left of
   * the current token up until we see a token on DEFAULT_TOKEN_CHANNEL.
   * If channel is -1, find any non default channel token.
   */
  getHiddenTokensToLeft(tokenIndex, channel) {
    if (channel === void 0) {
      channel = -1;
    }
    this.lazyInit();
    if (tokenIndex < 0 || tokenIndex >= this.tokens.length) {
      throw new Error(`${tokenIndex} not in 0..${this.tokens.length - 1}`);
    }
    const prevOnChannel = this.previousTokenOnChannel(tokenIndex - 1, Lexer.DEFAULT_TOKEN_CHANNEL);
    if (prevOnChannel === tokenIndex - 1) {
      return void 0;
    }
    const from = prevOnChannel + 1;
    const to = tokenIndex - 1;
    return this.filterForChannel(from, to, channel);
  }
  filterForChannel(left, right, channel) {
    const hidden = [];
    for (let i = left; i < right + 1; i++) {
      const t = this.tokens[i];
      if (channel === -1) {
        if (t.channel !== Lexer.DEFAULT_TOKEN_CHANNEL) {
          hidden.push(t);
        }
      } else if (t.channel === channel) {
        hidden.push(t);
      }
    }
    if (hidden.length === 0) {
      return void 0;
    }
    return hidden;
  }
  getSourceName() {
    return this.tokenSource.sourceName;
  }
  /** Get the text of all tokens in this buffer. */
  getText() {
    return this.getTextFromInterval(Interval.of(0, this.size - 1));
  }
  getTextFromInterval(interval) {
    const start = interval.start;
    let stop = interval.stop;
    if (start < 0 || stop < 0) {
      return "";
    }
    this.sync(stop);
    if (stop >= this.tokens.length) {
      stop = this.tokens.length - 1;
    }
    let result = "";
    for (let i = start; i <= stop; ++i) {
      const t = this.tokens[i];
      if (t.type === Token.EOF) {
        break;
      }
      result += t.text;
    }
    return result;
  }
  getTextFromContext(ctx) {
    return this.getTextFromInterval(ctx.getSourceInterval());
  }
  getTextFromRange(start, stop) {
    if (start !== null && stop !== null) {
      return this.getTextFromInterval(Interval.of(start.tokenIndex, stop.tokenIndex));
    }
    return "";
  }
  /** Get all tokens from lexer until EOF. */
  fill() {
    this.lazyInit();
    while (this.fetch(1e3) === 1e3) {
      ;
    }
  }
};

// src/CommonTokenStream.ts
var CommonTokenStream = class extends BufferedTokenStream {
  static {
    __name(this, "CommonTokenStream");
  }
  /**
   * Specifies the channel to use for filtering tokens.
   *
   *
   * The default value is {@link Token.DEFAULT_CHANNEL}, which matches the
   * default channel assigned to tokens created by the lexer.
   */
  channel = Token.DEFAULT_CHANNEL;
  constructor(lexer, channel) {
    super(lexer);
    this.channel = channel ?? Token.DEFAULT_CHANNEL;
  }
  adjustSeekIndex(i) {
    return this.nextTokenOnChannel(i, this.channel);
  }
  LB(k) {
    if (k === 0 || this.index - k < 0) {
      return null;
    }
    let i = this.index;
    let n2 = 1;
    while (n2 <= k) {
      i = this.previousTokenOnChannel(i - 1, this.channel);
      n2 += 1;
    }
    if (i < 0) {
      return null;
    }
    return this.tokens[i];
  }
  LT(k) {
    this.lazyInit();
    if (k === 0) {
      return null;
    }
    if (k < 0) {
      return this.LB(-k);
    }
    let i = this.index;
    let n2 = 1;
    while (n2 < k) {
      if (this.sync(i + 1)) {
        i = this.nextTokenOnChannel(i + 1, this.channel);
      }
      n2 += 1;
    }
    return this.tokens[i];
  }
  // Count EOF just once.
  getNumberOfOnChannelTokens() {
    let n2 = 0;
    this.fill();
    for (const t of this.tokens) {
      if (t.channel === this.channel) {
        n2 += 1;
      }
      if (t.type === Token.EOF) {
        break;
      }
    }
    return n2;
  }
};

// src/tree/xpath/XPathLexer.ts
var XPathLexer = class _XPathLexer extends Lexer {
  static {
    __name(this, "XPathLexer");
  }
  static TOKEN_REF = 1;
  static RULE_REF = 2;
  static ANYWHERE = 3;
  static ROOT = 4;
  static WILDCARD = 5;
  static BANG = 6;
  static ID = 7;
  static STRING = 8;
  static channelNames = [
    "DEFAULT_TOKEN_CHANNEL",
    "HIDDEN"
  ];
  static literalNames = [
    null,
    null,
    null,
    "'//'",
    "'/'",
    "'*'",
    "'!'"
  ];
  static symbolicNames = [
    null,
    "TOKEN_REF",
    "RULE_REF",
    "ANYWHERE",
    "ROOT",
    "WILDCARD",
    "BANG",
    "ID",
    "STRING"
  ];
  static modeNames = [
    "DEFAULT_MODE"
  ];
  static ruleNames = [
    "ANYWHERE",
    "ROOT",
    "WILDCARD",
    "BANG",
    "ID",
    "NameChar",
    "NameStartChar",
    "STRING"
  ];
  constructor(input) {
    super(input);
    this.interpreter = new LexerATNSimulator(this, _XPathLexer._ATN, _XPathLexer.decisionsToDFA, new PredictionContextCache());
  }
  get grammarFileName() {
    return "XPathLexer.g4";
  }
  get literalNames() {
    return _XPathLexer.literalNames;
  }
  get symbolicNames() {
    return _XPathLexer.symbolicNames;
  }
  get ruleNames() {
    return _XPathLexer.ruleNames;
  }
  get serializedATN() {
    return _XPathLexer._serializedATN;
  }
  get channelNames() {
    return _XPathLexer.channelNames;
  }
  get modeNames() {
    return _XPathLexer.modeNames;
  }
  action(localContext, ruleIndex, actionIndex) {
    switch (ruleIndex) {
      case 4:
        this.ID_action(localContext, actionIndex);
        break;
    }
  }
  ID_action(localContext, actionIndex) {
    switch (actionIndex) {
      case 0:
        const text = this.text;
        if (text.charAt(0) === text.charAt(0).toUpperCase()) {
          this.type = _XPathLexer.TOKEN_REF;
        } else {
          this.type = _XPathLexer.RULE_REF;
        }
        break;
    }
  }
  static _serializedATN = [
    4,
    0,
    8,
    48,
    6,
    -1,
    2,
    0,
    7,
    0,
    2,
    1,
    7,
    1,
    2,
    2,
    7,
    2,
    2,
    3,
    7,
    3,
    2,
    4,
    7,
    4,
    2,
    5,
    7,
    5,
    2,
    6,
    7,
    6,
    2,
    7,
    7,
    7,
    1,
    0,
    1,
    0,
    1,
    0,
    1,
    1,
    1,
    1,
    1,
    2,
    1,
    2,
    1,
    3,
    1,
    3,
    1,
    4,
    1,
    4,
    5,
    4,
    29,
    8,
    4,
    10,
    4,
    12,
    4,
    32,
    9,
    4,
    1,
    4,
    1,
    4,
    1,
    5,
    1,
    5,
    1,
    6,
    1,
    6,
    1,
    7,
    1,
    7,
    5,
    7,
    42,
    8,
    7,
    10,
    7,
    12,
    7,
    45,
    9,
    7,
    1,
    7,
    1,
    7,
    1,
    43,
    0,
    8,
    1,
    3,
    3,
    4,
    5,
    5,
    7,
    6,
    9,
    7,
    11,
    0,
    13,
    0,
    15,
    8,
    1,
    0,
    2,
    784,
    0,
    0,
    8,
    14,
    27,
    48,
    57,
    65,
    90,
    95,
    95,
    97,
    122,
    127,
    159,
    170,
    170,
    173,
    173,
    181,
    181,
    186,
    186,
    192,
    214,
    216,
    246,
    248,
    705,
    710,
    721,
    736,
    740,
    748,
    748,
    750,
    750,
    768,
    884,
    886,
    887,
    890,
    893,
    895,
    895,
    902,
    902,
    904,
    906,
    908,
    908,
    910,
    929,
    931,
    1013,
    1015,
    1153,
    1155,
    1159,
    1162,
    1327,
    1329,
    1366,
    1369,
    1369,
    1376,
    1416,
    1425,
    1469,
    1471,
    1471,
    1473,
    1474,
    1476,
    1477,
    1479,
    1479,
    1488,
    1514,
    1519,
    1522,
    1536,
    1541,
    1552,
    1562,
    1564,
    1564,
    1568,
    1641,
    1646,
    1747,
    1749,
    1757,
    1759,
    1768,
    1770,
    1788,
    1791,
    1791,
    1807,
    1866,
    1869,
    1969,
    1984,
    2037,
    2042,
    2042,
    2045,
    2045,
    2048,
    2093,
    2112,
    2139,
    2144,
    2154,
    2160,
    2183,
    2185,
    2190,
    2192,
    2193,
    2200,
    2403,
    2406,
    2415,
    2417,
    2435,
    2437,
    2444,
    2447,
    2448,
    2451,
    2472,
    2474,
    2480,
    2482,
    2482,
    2486,
    2489,
    2492,
    2500,
    2503,
    2504,
    2507,
    2510,
    2519,
    2519,
    2524,
    2525,
    2527,
    2531,
    2534,
    2545,
    2556,
    2556,
    2558,
    2558,
    2561,
    2563,
    2565,
    2570,
    2575,
    2576,
    2579,
    2600,
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  static __ATN;
  static get _ATN() {
    if (!_XPathLexer.__ATN) {
      _XPathLexer.__ATN = new ATNDeserializer().deserialize(_XPathLexer._serializedATN);
    }
    return _XPathLexer.__ATN;
  }
  static vocabulary = new Vocabulary(_XPathLexer.literalNames, _XPathLexer.symbolicNames, []);
  get vocabulary() {
    return _XPathLexer.vocabulary;
  }
  static decisionsToDFA = _XPathLexer._ATN.decisionToState.map((ds, index) => {
    return new DFA(ds, index);
  });
};

// src/tree/xpath/XPathLexerErrorListener.ts
var XPathLexerErrorListener = class extends BaseErrorListener {
  static {
    __name(this, "XPathLexerErrorListener");
  }
  syntaxError(_recognizer, _offendingSymbol, _line, _charPositionInLine, _msg, _e) {
  }
};

// src/tree/xpath/XPathElement.ts
var XPathElement = class {
  static {
    __name(this, "XPathElement");
  }
  invert;
  nodeName;
  /**
   * Construct element like `/ID` or `ID` or `/*` etc... `nodeName` is undefined if just node
   *
   * @param nodeName The name of the node; may be undefined for any node.
   */
  constructor(nodeName) {
    this.nodeName = nodeName;
    this.invert = false;
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPathRuleAnywhereElement.ts
var XPathRuleAnywhereElement = class extends XPathElement {
  static {
    __name(this, "XPathRuleAnywhereElement");
  }
  ruleIndex;
  constructor(ruleName, ruleIndex) {
    super(ruleName);
    this.ruleIndex = ruleIndex;
  }
  evaluate(t) {
    return Trees.findAllRuleNodes(t, this.ruleIndex);
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathRuleAnywhereElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPathRuleElement.ts
var XPathRuleElement = class extends XPathElement {
  static {
    __name(this, "XPathRuleElement");
  }
  ruleIndex;
  constructor(ruleName, ruleIndex) {
    super(ruleName);
    this.ruleIndex = ruleIndex;
  }
  evaluate(t) {
    const nodes = [];
    for (const c of Trees.getChildren(t)) {
      if (c instanceof ParserRuleContext) {
        if (c.ruleIndex === this.ruleIndex && !this.invert || c.ruleIndex !== this.ruleIndex && this.invert) {
          nodes.push(c);
        }
      }
    }
    return nodes;
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathRuleElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPathTokenAnywhereElement.ts
var XPathTokenAnywhereElement = class extends XPathElement {
  static {
    __name(this, "XPathTokenAnywhereElement");
  }
  tokenType;
  constructor(tokenName, tokenType) {
    super(tokenName);
    this.tokenType = tokenType;
  }
  evaluate(t) {
    return Trees.findAllTokenNodes(t, this.tokenType);
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathTokenAnywhereElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPathTokenElement.ts
var XPathTokenElement = class extends XPathElement {
  static {
    __name(this, "XPathTokenElement");
  }
  tokenType;
  constructor(tokenName, tokenType) {
    super(tokenName);
    this.tokenType = tokenType;
  }
  evaluate(t) {
    const nodes = [];
    for (const c of Trees.getChildren(t)) {
      if (c instanceof TerminalNode && c.symbol) {
        if (c.symbol.type === this.tokenType && !this.invert || c.symbol.type !== this.tokenType && this.invert) {
          nodes.push(c);
        }
      }
    }
    return nodes;
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathTokenElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPathWildcardAnywhereElement.ts
var XPathWildcardAnywhereElement = class extends XPathElement {
  static {
    __name(this, "XPathWildcardAnywhereElement");
  }
  constructor() {
    super(XPath.WILDCARD);
  }
  evaluate(t) {
    if (this.invert) {
      return [];
    }
    return Trees.descendants(t);
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathWildcardAnywhereElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPathWildcardElement.ts
var XPathWildcardElement = class extends XPathElement {
  static {
    __name(this, "XPathWildcardElement");
  }
  constructor() {
    super(XPath.WILDCARD);
  }
  evaluate(t) {
    const kids = [];
    if (this.invert) {
      return kids;
    }
    for (const c of Trees.getChildren(t)) {
      kids.push(c);
    }
    return kids;
  }
  toString() {
    const inv = this.invert ? "!" : "";
    return "XPathWildcardElement[" + inv + this.nodeName + "]";
  }
};

// src/tree/xpath/XPath.ts
var XPath = class _XPath {
  static {
    __name(this, "XPath");
  }
  static WILDCARD = "*";
  // word not operator/separator
  static NOT = "!";
  // word for invert operator
  path;
  elements;
  parser;
  constructor(parser, path) {
    this.parser = parser;
    this.path = path;
    this.elements = this.split(path);
  }
  static findAll(tree, xpath, parser) {
    const p = new _XPath(parser, xpath);
    return p.evaluate(tree);
  }
  // TODO: check for invalid token/rule names, bad syntax
  split(path) {
    const lexer = new XPathLexer(CharStream.fromString(path));
    lexer.recover = (e) => {
      throw e;
    };
    lexer.removeErrorListeners();
    lexer.addErrorListener(new XPathLexerErrorListener());
    const tokenStream = new CommonTokenStream(lexer);
    try {
      tokenStream.fill();
    } catch (e) {
      if (e instanceof LexerNoViableAltException) {
        const pos = lexer.column;
        const msg = "Invalid tokens or characters at index " + pos + " in path '" + path + "' -- " + e.message;
        throw new RangeError(msg);
      }
      throw e;
    }
    const tokens = tokenStream.getTokens();
    const elements = [];
    const n2 = tokens.length;
    let i = 0;
    loop:
      while (i < n2) {
        const el = tokens[i];
        let next;
        switch (el.type) {
          case XPathLexer.ROOT:
          case XPathLexer.ANYWHERE:
            const anywhere = el.type === XPathLexer.ANYWHERE;
            i++;
            next = tokens[i];
            const invert = next.type === XPathLexer.BANG;
            if (invert) {
              i++;
              next = tokens[i];
            }
            const pathElement = this.getXPathElement(next, anywhere);
            pathElement.invert = invert;
            elements.push(pathElement);
            i++;
            break;
          case XPathLexer.TOKEN_REF:
          case XPathLexer.RULE_REF:
          case XPathLexer.WILDCARD:
            elements.push(this.getXPathElement(el, false));
            ++i;
            break;
          case Token.EOF:
            break loop;
          default:
            throw new Error("Unknown path element " + el);
        }
      }
    return elements;
  }
  /**
   * Return a list of all nodes starting at `t` as root that satisfy the
   * path. The root `/` is relative to the node passed to {@link evaluate}.
   */
  evaluate(t) {
    const dummyRoot = new ParserRuleContext(null);
    dummyRoot.addChild(t);
    let work = /* @__PURE__ */ new Set([dummyRoot]);
    let i = 0;
    while (i < this.elements.length) {
      const next = /* @__PURE__ */ new Set();
      for (const node of work) {
        if (node.getChildCount() > 0) {
          const matching = this.elements[i].evaluate(node);
          matching.forEach((tree) => {
            next.add(tree);
          }, next);
        }
      }
      i++;
      work = next;
    }
    return work;
  }
  /**
   * Convert word like `*` or `ID` or `expr` to a path
   * element. `anywhere` is `true` if `//` precedes the
   * word.
   */
  getXPathElement(wordToken, anywhere) {
    if (wordToken.type === Token.EOF) {
      throw new Error("Missing path element at end of path");
    }
    const word = wordToken.text;
    if (word == null) {
      throw new Error("Expected wordToken to have text content.");
    }
    const ttype = this.parser.getTokenType(word);
    const ruleIndex = this.parser.getRuleIndex(word);
    switch (wordToken.type) {
      case XPathLexer.WILDCARD:
        return anywhere ? new XPathWildcardAnywhereElement() : new XPathWildcardElement();
      case XPathLexer.TOKEN_REF:
      case XPathLexer.STRING:
        if (ttype === Token.INVALID_TYPE) {
          throw new Error(word + " at index " + wordToken.start + " isn't a valid token name");
        }
        return anywhere ? new XPathTokenAnywhereElement(word, ttype) : new XPathTokenElement(word, ttype);
      default:
        if (ruleIndex === -1) {
          throw new Error(word + " at index " + wordToken.start + " isn't a valid rule name");
        }
        return anywhere ? new XPathRuleAnywhereElement(word, ruleIndex) : new XPathRuleElement(word, ruleIndex);
    }
  }
};

// src/tree/pattern/Chunk.ts
var Chunk = class {
  static {
    __name(this, "Chunk");
  }
};

// src/tree/pattern/ParseTreeMatch.ts
var ParseTreeMatch = class {
  static {
    __name(this, "ParseTreeMatch");
  }
  /**
   * This is the backing field for {@link #getTree()}.
   */
  tree;
  /**
   * This is the backing field for {@link #getPattern()}.
   */
  pattern;
  /**
   * This is the backing field for {@link #getLabels()}.
   */
  labels;
  /**
   * This is the backing field for {@link #getMismatchedNode()}.
   */
  mismatchedNode;
  /**
   * Constructs a new instance of {@link ParseTreeMatch} from the specified
   * parse tree and pattern.
   *
   * @param tree The parse tree to match against the pattern.
   * @param pattern The parse tree pattern.
   * @param labels A mapping from label names to collections of
   * {@link ParseTree} objects located by the tree pattern matching process.
   * @param mismatchedNode The first node which failed to match the tree
   * pattern during the matching process.
   */
  constructor(tree, pattern, labels, mismatchedNode) {
    this.tree = tree;
    this.pattern = pattern;
    this.labels = labels;
    this.mismatchedNode = mismatchedNode;
  }
  /**
   * Get the last node associated with a specific `label`.
   *
   * For example, for pattern `<id:ID>`, `get("id")` returns the
   * node matched for that `ID`. If more than one node
   * matched the specified label, only the last is returned. If there is
   * no node associated with the label, this returns `null`.
   *
   * Pattern tags like `<ID>` and `<expr>` without labels are
   * considered to be labeled with `ID` and `expr`, respectively.
   *
   * @param label The label to check.
   *
   * @returns The last {@link ParseTree} to match a tag with the specified
   * label, or `null` if no parse tree matched a tag with the label.
   */
  get(label) {
    const parseTrees = this.labels.get(label);
    if (!parseTrees || parseTrees.length === 0) {
      return null;
    }
    return parseTrees[parseTrees.length - 1];
  }
  /**
   * Return all nodes matching a rule or token tag with the specified label.
   *
   * If the `label` is the name of a parser rule or token in the
   * grammar, the resulting list will contain both the parse trees matching
   * rule or tags explicitly labeled with the label and the complete set of
   * parse trees matching the labeled and unlabeled tags in the pattern for
   * the parser rule or token. For example, if `label` is `"foo"`,
   * the result will contain *all* of the following.
   *
   * - Parse tree nodes matching tags of the form `<foo:anyRuleName>` and
   * `<foo:AnyTokenName>`.
   * - Parse tree nodes matching tags of the form `<anyLabel:foo>`.
   * - Parse tree nodes matching tags of the form `<foo>`.
   *
   * @param label The label.
   *
   * @returns A collection of all {@link ParseTree} nodes matching tags with
   * the specified `label`. If no nodes matched the label, an empty list
   * is returned.
   */
  getAll(label) {
    const nodes = this.labels.get(label);
    return nodes ?? [];
  }
  /**
   * Return a mapping from label -> [list of nodes].
   *
   * The map includes special entries corresponding to the names of rules and
   * tokens referenced in tags in the original pattern. For additional
   * information, see the description of {@link getAll(String)}.
   *
   * @returns A mapping from labels to parse tree nodes. If the parse tree
   * pattern did not contain any rule or token tags, this map will be empty.
   */
  getLabels() {
    return this.labels;
  }
  /**
   * Get the node at which we first detected a mismatch.
   *
   * @returns the node at which we first detected a mismatch, or `null`
   * if the match was successful.
   */
  getMismatchedNode() {
    return this.mismatchedNode;
  }
  /**
   * Gets a value indicating whether the match operation succeeded.
   *
   * @returns `true` if the match operation succeeded; otherwise, `false`.
   */
  succeeded() {
    return !this.mismatchedNode;
  }
  /**
   * Get the tree pattern we are matching against.
   *
   * @returns The tree pattern we are matching against.
   */
  getPattern() {
    return this.pattern;
  }
  /**
   * Get the parse tree we are trying to match to a pattern.
   *
   * @returns The {@link ParseTree} we are trying to match to a pattern.
   */
  getTree() {
    return this.tree;
  }
  toString() {
    return `Match ${this.succeeded() ? "succeeded" : "failed"}; found ${this.getLabels().size} labels`;
  }
};

// src/tree/pattern/ParseTreePattern.ts
var ParseTreePattern = class {
  static {
    __name(this, "ParseTreePattern");
  }
  /**
   * This is the backing field for {@link #getPatternRuleIndex()}.
   */
  patternRuleIndex;
  /**
   * This is the backing field for {@link #getPattern()}.
   */
  pattern;
  /**
   * This is the backing field for {@link #getPatternTree()}.
   */
  patternTree;
  /**
   * This is the backing field for {@link #getMatcher()}.
   */
  matcher;
  /**
   * Construct a new instance of the {@link ParseTreePattern} class.
   *
   * @param matcher The {@link ParseTreePatternMatcher} which created this
   * tree pattern.
   * @param pattern The tree pattern in concrete syntax form.
   * @param patternRuleIndex The parser rule which serves as the root of the
   * tree pattern.
   * @param patternTree The tree pattern in {@link ParseTree} form.
   */
  constructor(matcher, pattern, patternRuleIndex, patternTree) {
    this.matcher = matcher;
    this.patternRuleIndex = patternRuleIndex;
    this.pattern = pattern;
    this.patternTree = patternTree;
  }
  /**
   * Match a specific parse tree against this tree pattern.
   *
   * @param tree The parse tree to match against this tree pattern.
   * @returns A {@link ParseTreeMatch} object describing the result of the
   * match operation. The {@link ParseTreeMatch#succeeded()} method can be
   * used to determine whether or not the match was successful.
   */
  match(tree) {
    return this.matcher.match(tree, this);
  }
  /**
   * Determine whether or not a parse tree matches this tree pattern.
   *
   * @param tree The parse tree to match against this tree pattern.
   * @returns `true` if `tree` is a match for the current tree
   * pattern; otherwise, `false`.
   */
  matches(tree) {
    return this.matcher.match(tree, this).succeeded();
  }
  /**
   * Find all nodes using XPath and then try to match those subtrees against
   * this tree pattern.
   *
   * @param tree The {@link ParseTree} to match against this pattern.
   * @param xpath An expression matching the nodes
   *
   * @returns A collection of {@link ParseTreeMatch} objects describing the
   * successful matches. Unsuccessful matches are omitted from the result,
   * regardless of the reason for the failure.
   */
  findAll(tree, xpath) {
    const subtrees = XPath.findAll(tree, xpath, this.matcher.getParser());
    const matches = new Array();
    for (const t of subtrees) {
      const match = this.match(t);
      if (match.succeeded()) {
        matches.push(match);
      }
    }
    return matches;
  }
  /**
   * Get the {@link ParseTreePatternMatcher} which created this tree pattern.
   *
   * @returns The {@link ParseTreePatternMatcher} which created this tree
   * pattern.
   */
  getMatcher() {
    return this.matcher;
  }
  /**
   * Get the tree pattern in concrete syntax form.
   *
   * @returns The tree pattern in concrete syntax form.
   */
  getPattern() {
    return this.pattern;
  }
  /**
   * Get the parser rule which serves as the outermost rule for the tree
   * pattern.
   *
   * @returns The parser rule which serves as the outermost rule for the tree
   * pattern.
   */
  getPatternRuleIndex() {
    return this.patternRuleIndex;
  }
  /**
   * Get the tree pattern as a {@link ParseTree}. The rule and token tags from
   * the pattern are present in the parse tree as terminal nodes with a symbol
   * of type {@link RuleTagToken} or {@link TokenTagToken}.
   *
   * @returns The tree pattern as a {@link ParseTree}.
   */
  getPatternTree() {
    return this.patternTree;
  }
};

// src/InputMismatchException.ts
var InputMismatchException = class extends RecognitionException {
  static {
    __name(this, "InputMismatchException");
  }
  constructor(recognizer) {
    super({ message: "", recognizer, input: recognizer.inputStream, ctx: recognizer.context });
    this.offendingToken = recognizer.getCurrentToken();
  }
};

// src/FailedPredicateException.ts
var FailedPredicateException = class extends RecognitionException {
  static {
    __name(this, "FailedPredicateException");
  }
  ruleIndex = 0;
  predicateIndex = 0;
  predicate;
  constructor(recognizer, predicate, message = null) {
    super({
      message: formatMessage(predicate ?? "no predicate", message ?? null),
      recognizer,
      input: recognizer.inputStream,
      ctx: recognizer.context
    });
    const s = recognizer.atn.states[recognizer.state];
    const trans = s.transitions[0];
    if (trans instanceof PredicateTransition) {
      this.ruleIndex = trans.ruleIndex;
      this.predicateIndex = trans.predIndex;
    } else {
      this.ruleIndex = 0;
      this.predicateIndex = 0;
    }
    this.predicate = predicate;
    this.offendingToken = recognizer.getCurrentToken();
  }
};
var formatMessage = /* @__PURE__ */ __name((predicate, message) => {
  if (message !== null) {
    return message;
  }
  return "failed predicate: {" + predicate + "}?";
}, "formatMessage");

// src/DefaultErrorStrategy.ts
var DefaultErrorStrategy = class {
  static {
    __name(this, "DefaultErrorStrategy");
  }
  /**
   * Indicates whether the error strategy is currently "recovering from an
   * error". This is used to suppress reporting multiple error messages while
   * attempting to recover from a detected syntax error.
   *
   * @see #inErrorRecoveryMode
   */
  errorRecoveryMode = false;
  /**
   * The index into the input stream where the last error occurred.
   * 	This is used to prevent infinite loops where an error is found
   *  but no token is consumed during recovery...another error is found,
   *  ad nauseam.  This is a failsafe mechanism to guarantee that at least
   *  one token/tree node is consumed for two errors.
   */
  lastErrorIndex = -1;
  lastErrorStates = new IntervalSet();
  /**
   * This field is used to propagate information about the lookahead following
   * the previous match. Since prediction prefers completing the current rule
   * to error recovery efforts, error reporting may occur later than the
   * original point where it was discoverable. The original context is used to
   * compute the true expected sets as though the reporting occurred as early
   * as possible.
   */
  nextTokensContext = null;
  nextTokenState = 0;
  /**
   * The default implementation simply calls {@link endErrorCondition} to
   * ensure that the handler is not in error recovery mode.
   */
  reset(recognizer) {
    this.endErrorCondition(recognizer);
  }
  /**
   * This method is called to enter error recovery mode when a recognition
   * exception is reported.
   *
   * @param _recognizer the parser instance
   */
  beginErrorCondition(_recognizer) {
    this.errorRecoveryMode = true;
  }
  inErrorRecoveryMode(_recognizer) {
    return this.errorRecoveryMode;
  }
  /**
   * This method is called to leave error recovery mode after recovering from
   * a recognition exception.
   */
  endErrorCondition(_recognizer) {
    this.errorRecoveryMode = false;
    this.lastErrorStates = new IntervalSet();
    this.lastErrorIndex = -1;
  }
  /**
   * The default implementation simply calls {@link endErrorCondition}.
   */
  reportMatch(recognizer) {
    this.endErrorCondition(recognizer);
  }
  /**
   * The default implementation returns immediately if the handler is already
   * in error recovery mode. Otherwise, it calls {@link beginErrorCondition}
   * and dispatches the reporting task based on the runtime type of `e`
   * according to the following table.
   *
   * - {@link NoViableAltException}: Dispatches the call to {@link reportNoViableAlternative}
   * - {@link InputMismatchException}: Dispatches the call to {@link reportInputMismatch}
   * - {@link FailedPredicateException}: Dispatches the call to {@link reportFailedPredicate}
   * - All other types: calls {@link Parser.notifyErrorListeners} to report the exception
   */
  reportError(recognizer, e) {
    if (this.inErrorRecoveryMode(recognizer)) {
      return;
    }
    this.beginErrorCondition(recognizer);
    if (e instanceof NoViableAltException) {
      this.reportNoViableAlternative(recognizer, e);
    } else if (e instanceof InputMismatchException) {
      this.reportInputMismatch(recognizer, e);
    } else if (e instanceof FailedPredicateException) {
      this.reportFailedPredicate(recognizer, e);
    } else {
      recognizer.notifyErrorListeners(e.message, e.offendingToken, e);
    }
  }
  /**
   * The default implementation resynchronizes the parser by consuming tokens
   * until we find one in the resynchronization set--loosely the set of tokens
   * that can follow the current rule.
   *
   */
  recover(recognizer, _e) {
    if (this.lastErrorIndex === recognizer.inputStream?.index && this.lastErrorStates.contains(recognizer.state)) {
      recognizer.consume();
    }
    this.lastErrorIndex = recognizer.inputStream?.index ?? 0;
    this.lastErrorStates.addOne(recognizer.state);
    const followSet = this.getErrorRecoverySet(recognizer);
    this.consumeUntil(recognizer, followSet);
  }
  /**
   * The default implementation of {@link ANTLRErrorStrategy.sync} makes sure
   * that the current lookahead symbol is consistent with what were expecting
   * at this point in the ATN. You can call this anytime but ANTLR only
   * generates code to check before subrules/loops and each iteration.
   *
   * Implements Jim Idle's magic sync mechanism in closures and optional
   * subrules. E.g.,
   *
   * ```
   * a : sync ( stuff sync )* ;
   * sync : {consume to what can follow sync} ;
   * ```
   *
   * At the start of a sub rule upon error, {@link sync} performs single
   * token deletion, if possible. If it can't do that, it bails on the current
   * rule and uses the default error recovery, which consumes until the
   * resynchronization set of the current rule.
   *
   * If the sub rule is optional (`(...)?`, `(...)*`, or block
   * with an empty alternative), then the expected set includes what follows
   * the subrule.
   *
   * During loop iteration, it consumes until it sees a token that can start a
   * sub rule or what follows loop. Yes, that is pretty aggressive. We opt to
   * stay in the loop as long as possible.
   *
   * **ORIGINS**
   *
   * Previous versions of ANTLR did a poor job of their recovery within loops.
   * A single mismatch token or missing token would force the parser to bail
   * out of the entire rules surrounding the loop. So, for rule
   *
   * ```
   * classDef : 'class' ID '{' member* '}'
   * ```
   *
   * input with an extra token between members would force the parser to
   * consume until it found the next class definition rather than the next
   * member definition of the current class.
   *
   * This functionality cost a little bit of effort because the parser has to
   * compare token set at the start of the loop and at each iteration. If for
   * some reason speed is suffering for you, you can turn off this
   * functionality by simply overriding this method as a blank { }.
   *
   */
  sync(recognizer) {
    if (this.inErrorRecoveryMode(recognizer)) {
      return;
    }
    const s = recognizer.atn.states[recognizer.state];
    const la = recognizer.tokenStream.LA(1);
    const nextTokens = recognizer.atn.nextTokens(s);
    if (nextTokens.contains(la)) {
      this.nextTokensContext = null;
      this.nextTokenState = ATNState.INVALID_STATE_NUMBER;
      return;
    }
    if (nextTokens.contains(Token.EPSILON)) {
      if (this.nextTokensContext === null) {
        this.nextTokensContext = recognizer.context;
        this.nextTokenState = recognizer.state;
      }
      return;
    }
    switch (s.constructor.stateType) {
      case ATNState.BLOCK_START:
      case ATNState.STAR_BLOCK_START:
      case ATNState.PLUS_BLOCK_START:
      case ATNState.STAR_LOOP_ENTRY: {
        if (this.singleTokenDeletion(recognizer) !== null) {
          return;
        }
        throw new InputMismatchException(recognizer);
      }
      case ATNState.PLUS_LOOP_BACK:
      case ATNState.STAR_LOOP_BACK: {
        this.reportUnwantedToken(recognizer);
        const expecting = new IntervalSet();
        expecting.addSet(recognizer.getExpectedTokens());
        const whatFollowsLoopIterationOrRule = expecting.addSet(this.getErrorRecoverySet(recognizer));
        this.consumeUntil(recognizer, whatFollowsLoopIterationOrRule);
        break;
      }
      default:
    }
  }
  /**
   * This is called by {@link reportError} when the exception is a
   * {@link NoViableAltException}.
   *
   * @see reportError
   *
   * @param recognizer the parser instance
   * @param e the recognition exception
   */
  reportNoViableAlternative(recognizer, e) {
    if (e.message.length > 0) {
      recognizer.notifyErrorListeners(e.message, e.offendingToken, e);
      return;
    }
    const tokens = recognizer.tokenStream;
    let input;
    if (tokens !== null && e.startToken) {
      if (e.startToken.type === Token.EOF) {
        input = "<EOF>";
      } else {
        input = tokens.getTextFromRange(e.startToken, e.offendingToken);
      }
    } else {
      input = "<unknown input>";
    }
    const msg = "no viable alternative at input " + this.escapeWSAndQuote(input);
    recognizer.notifyErrorListeners(msg, e.offendingToken, e);
  }
  /**
   * This is called by {@link reportError} when the exception is an {@link InputMismatchException}.
   *
   * @see reportError
   *
   * @param recognizer the parser instance
   * @param e the recognition exception
   */
  reportInputMismatch(recognizer, e) {
    if (e.message.length > 0) {
      recognizer.notifyErrorListeners(e.message, e.offendingToken, e);
      return;
    }
    const msg = "mismatched input " + this.getTokenErrorDisplay(e.offendingToken) + " expecting " + e.getExpectedTokens().toStringWithVocabulary(recognizer.vocabulary);
    recognizer.notifyErrorListeners(msg, e.offendingToken, e);
  }
  /**
   * This is called by {@link reportError} when the exception is a
   * {@link FailedPredicateException}.
   *
   * @see reportError
   *
   * @param recognizer the parser instance
   * @param e the recognition exception
   */
  reportFailedPredicate(recognizer, e) {
    const ruleName = recognizer.ruleNames[recognizer.context.ruleIndex];
    const msg = "rule " + ruleName + " " + e.message;
    recognizer.notifyErrorListeners(msg, e.offendingToken, e);
  }
  /**
   * This method is called to report a syntax error which requires the removal
   * of a token from the input stream. At the time this method is called, the
   * erroneous symbol is current `LT(1)` symbol and has not yet been
   * removed from the input stream. When this method returns,
   * `recognizer` is in error recovery mode.
   *
   * This method is called when {@link singleTokenDeletion} identifies
   * single-token deletion as a viable recovery strategy for a mismatched
   * input error.
   *
   * The default implementation simply returns if the handler is already in
   * error recovery mode. Otherwise, it calls {@link beginErrorCondition} to
   * enter error recovery mode, followed by calling
   * {@link Parser.notifyErrorListeners}.
   *
   * @param recognizer the parser instance
   */
  reportUnwantedToken(recognizer) {
    if (this.inErrorRecoveryMode(recognizer)) {
      return;
    }
    this.beginErrorCondition(recognizer);
    const t = recognizer.getCurrentToken();
    const tokenName = this.getTokenErrorDisplay(t);
    const expecting = this.getExpectedTokens(recognizer);
    const msg = "extraneous input " + tokenName + " expecting " + expecting.toStringWithVocabulary(recognizer.vocabulary);
    recognizer.notifyErrorListeners(msg, t, null);
  }
  /**
   * This method is called to report a syntax error which requires the
   * insertion of a missing token into the input stream. At the time this
   * method is called, the missing token has not yet been inserted. When this
   * method returns, `recognizer` is in error recovery mode.
   *
   * This method is called when {@link singleTokenInsertion} identifies
   * single-token insertion as a viable recovery strategy for a mismatched
   * input error.
   *
   * The default implementation simply returns if the handler is already in
   * error recovery mode. Otherwise, it calls {@link beginErrorCondition} to
   * enter error recovery mode, followed by calling
   * {@link Parser.notifyErrorListeners}.
   *
   * @param recognizer the parser instance
   */
  reportMissingToken(recognizer) {
    if (this.inErrorRecoveryMode(recognizer)) {
      return;
    }
    this.beginErrorCondition(recognizer);
    const t = recognizer.getCurrentToken();
    const expecting = this.getExpectedTokens(recognizer);
    const msg = "missing " + expecting.toStringWithVocabulary(recognizer.vocabulary) + " at " + this.getTokenErrorDisplay(t);
    recognizer.notifyErrorListeners(msg, t, null);
  }
  /**
   * The default implementation attempts to recover from the mismatched input
   * by using single token insertion and deletion as described below. If the
   * recovery attempt fails, this method throws an
   * {@link InputMismatchException}.
   *
   * **EXTRA TOKEN** (single token deletion)
   *
   * `LA(1)` is not what we are looking for. If `LA(2)` has the
   * right token, however, then assume `LA(1)` is some extra spurious
   * token and delete it. Then consume and return the next token (which was
   * the `LA(2)` token) as the successful result of the match operation.
   *
   * This recovery strategy is implemented by {@link singleTokenDeletion}.
   *
   * **MISSING TOKEN** (single token insertion)
   *
   * If current token (at `LA(1)`) is consistent with what could come
   * after the expected `LA(1)` token, then assume the token is missing
   * and use the parser's {@link TokenFactory} to create it on the fly. The
   * "insertion" is performed by returning the created token as the successful
   * result of the match operation.
   *
   * This recovery strategy is implemented by {@link singleTokenInsertion}.
   *
   * **EXAMPLE**
   *
   * For example, Input `i=(3;` is clearly missing the `')'`. When
   * the parser returns from the nested call to `expr`, it will have
   * call chain:
   *
   * ```
   * stat -> expr -> atom
   * ```
   *
   * and it will be trying to match the `')'` at this point in the
   * derivation:
   *
   * ```
   * => ID '=' '(' INT ')' ('+' atom)* ';'
   * ^
   * ```
   *
   * The attempt to match `')'` will fail when it sees `';'` and
   * call {@link recoverInline}. To recover, it sees that `LA(1)==';'`
   * is in the set of tokens that can follow the `')'` token reference
   * in rule `atom`. It can assume that you forgot the `')'`.
   */
  recoverInline(recognizer) {
    const matchedSymbol = this.singleTokenDeletion(recognizer);
    if (matchedSymbol) {
      recognizer.consume();
      return matchedSymbol;
    }
    if (this.singleTokenInsertion(recognizer)) {
      return this.getMissingSymbol(recognizer);
    }
    throw new InputMismatchException(recognizer);
  }
  /**
   * This method implements the single-token insertion inline error recovery
   * strategy. It is called by {@link recoverInline} if the single-token
   * deletion strategy fails to recover from the mismatched input. If this
   * method returns `true`, `recognizer` will be in error recovery
   * mode.
   *
   * This method determines whether or not single-token insertion is viable by
   * checking if the `LA(1)` input symbol could be successfully matched
   * if it were instead the `LA(2)` symbol. If this method returns
   * `true`, the caller is responsible for creating and inserting a
   * token with the correct type to produce this behavior.
   *
   * @param recognizer the parser instance
   * @returns `true` if single-token insertion is a viable recovery
   * strategy for the current mismatched input, otherwise `false`
   */
  singleTokenInsertion(recognizer) {
    const currentSymbolType = recognizer.tokenStream?.LA(1) ?? -1;
    const atn = recognizer.atn;
    const currentState = atn.states[recognizer.state];
    const next = currentState.transitions[0].target;
    const expectingAtLL2 = atn.nextTokens(next, recognizer.context ?? void 0);
    if (expectingAtLL2.contains(currentSymbolType)) {
      this.reportMissingToken(recognizer);
      return true;
    }
    return false;
  }
  /**
   * This method implements the single-token deletion inline error recovery
   * strategy. It is called by {@link recoverInline} to attempt to recover
   * from mismatched input. If this method returns null, the parser and error
   * handler state will not have changed. If this method returns non-null,
   * `recognizer` will *not* be in error recovery mode since the
   * returned token was a successful match.
   *
   * If the single-token deletion is successful, this method calls
   * {@link reportUnwantedToken} to report the error, followed by
   * {@link Parser.consume} to actually "delete" the extraneous token. Then,
   * before returning {@link reportMatch} is called to signal a successful
   * match.
   *
   * @param recognizer the parser instance
   * @returns the successfully matched {@link Token} instance if single-token
   * deletion successfully recovers from the mismatched input, otherwise
   * `null`
   */
  singleTokenDeletion(recognizer) {
    const nextTokenType = recognizer.tokenStream?.LA(2) ?? -1;
    const expecting = this.getExpectedTokens(recognizer);
    if (expecting.contains(nextTokenType)) {
      this.reportUnwantedToken(recognizer);
      recognizer.consume();
      const matchedSymbol = recognizer.getCurrentToken();
      this.reportMatch(recognizer);
      return matchedSymbol;
    }
    return null;
  }
  /**
   * Conjure up a missing token during error recovery.
   *
   * The recognizer attempts to recover from single missing
   * symbols. But, actions might refer to that missing symbol.
   * For example, x=ID {f($x);}. The action clearly assumes
   * that there has been an identifier matched previously and that
   * $x points at that token. If that token is missing, but
   * the next token in the stream is what we want we assume that
   * this token is missing and we keep going. Because we
   * have to return some token to replace the missing token,
   * we have to conjure one up. This method gives the user control
   * over the tokens returned for missing tokens. Mostly,
   * you will want to create something special for identifier
   * tokens. For literals such as '{' and ',', the default
   * action in the parser or tree parser works. It simply creates
   * a CommonToken of the appropriate type. The text will be the token.
   * If you change what tokens must be created by the lexer,
   * override this method to create the appropriate tokens.
   */
  getMissingSymbol(recognizer) {
    const currentSymbol = recognizer.getCurrentToken();
    const expecting = this.getExpectedTokens(recognizer);
    let expectedTokenType = Token.INVALID_TYPE;
    if (expecting.length !== 0) {
      expectedTokenType = expecting.minElement;
    }
    let tokenText;
    if (expectedTokenType === Token.EOF) {
      tokenText = "<missing EOF>";
    } else {
      tokenText = "<missing " + recognizer.vocabulary.getDisplayName(expectedTokenType) + ">";
    }
    let current = currentSymbol;
    const lookBack = recognizer.tokenStream?.LT(-1);
    if (current.type === Token.EOF && lookBack !== null) {
      current = lookBack;
    }
    return recognizer.getTokenFactory().create(
      current.source,
      expectedTokenType,
      tokenText,
      Token.DEFAULT_CHANNEL,
      -1,
      -1,
      current.line,
      current.column
    );
  }
  getExpectedTokens(recognizer) {
    return recognizer.getExpectedTokens();
  }
  /**
   * How should a token be displayed in an error message? The default
   * is to display just the text, but during development you might
   * want to have a lot of information spit out. Override in that case
   * to use t.toString() (which, for CommonToken, dumps everything about
   * the token). This is better than forcing you to override a method in
   * your token objects because you don't have to go modify your lexer
   * so that it creates a new Java type.
   */
  getTokenErrorDisplay(t) {
    if (t === null) {
      return "<no token>";
    }
    let s = t.text;
    if (!s) {
      if (t.type === Token.EOF) {
        s = "<EOF>";
      } else {
        s = "<" + t.type + ">";
      }
    }
    return this.escapeWSAndQuote(s);
  }
  escapeWSAndQuote(s) {
    s = s.replace(/\n/g, "\\n");
    s = s.replace(/\r/g, "\\r");
    s = s.replace(/\t/g, "\\t");
    return "'" + s + "'";
  }
  /**
   * Compute the error recovery set for the current rule. During
   * rule invocation, the parser pushes the set of tokens that can
   * follow that rule reference on the stack; this amounts to
   * computing FIRST of what follows the rule reference in the
   * enclosing rule. See LinearApproximator.FIRST().
   * This local follow set only includes tokens
   * from within the rule; i.e., the FIRST computation done by
   * ANTLR stops at the end of a rule.
   *
   * EXAMPLE
   *
   * When you find a "no viable alt exception", the input is not
   * consistent with any of the alternatives for rule r. The best
   * thing to do is to consume tokens until you see something that
   * can legally follow a call to r//or* any rule that called r.
   * You don't want the exact set of viable next tokens because the
   * input might just be missing a token--you might consume the
   * rest of the input looking for one of the missing tokens.
   *
   * Consider grammar:
   *
   * a : '[' b ']'
   * | '(' b ')'
   * ;
   * b : c '^' INT ;
   * c : ID
   * | INT
   * ;
   *
   * At each rule invocation, the set of tokens that could follow
   * that rule is pushed on a stack. Here are the various
   * context-sensitive follow sets:
   *
   * FOLLOW(b1_in_a) = FIRST(']') = ']'
   * FOLLOW(b2_in_a) = FIRST(')') = ')'
   * FOLLOW(c_in_b) = FIRST('^') = '^'
   *
   * Upon erroneous input "[]", the call chain is
   *
   * a -> b -> c
   *
   * and, hence, the follow context stack is:
   *
   * depth follow set start of rule execution
   * 0 <EOF> a (from main())
   * 1 ']' b
   * 2 '^' c
   *
   * Notice that ')' is not included, because b would have to have
   * been called from a different context in rule a for ')' to be
   * included.
   *
   * For error recovery, we cannot consider FOLLOW(c)
   * (context-sensitive or otherwise). We need the combined set of
   * all context-sensitive FOLLOW sets--the set of all tokens that
   * could follow any reference in the call chain. We need to
   * resync to one of those tokens. Note that FOLLOW(c)='^' and if
   * we resync'd to that token, we'd consume until EOF. We need to
   * sync to context-sensitive FOLLOWs for a, b, and c: {']','^'}.
   * In this case, for input "[]", LA(1) is ']' and in the set, so we would
   * not consume anything. After printing an error, rule c would
   * return normally. Rule b would not find the required '^' though.
   * At this point, it gets a mismatched token error and throws an
   * exception (since LA(1) is not in the viable following token
   * set). The rule exception handler tries to recover, but finds
   * the same recovery set and doesn't consume anything. Rule b
   * exits normally returning to rule a. Now it finds the ']' (and
   * with the successful match exits errorRecovery mode).
   *
   * So, you can see that the parser walks up the call chain looking
   * for the token that was a member of the recovery set.
   *
   * Errors are not generated in errorRecovery mode.
   *
   * ANTLR's error recovery mechanism is based upon original ideas:
   *
   * "Algorithms + Data Structures = Programs" by Niklaus Wirth
   *
   * and
   *
   * "A note on error recovery in recursive descent parsers":
   * http://portal.acm.org/citation.cfm?id=947902.947905
   *
   * Later, Josef Grosch had some good ideas:
   *
   * "Efficient and Comfortable Error Recovery in Recursive Descent
   * Parsers":
   * ftp://www.cocolab.com/products/cocktail/doca4.ps/ell.ps.zip
   *
   * Like Grosch I implement context-sensitive FOLLOW sets that are combined
   * at run-time upon error to avoid overhead during parsing.
   */
  getErrorRecoverySet(recognizer) {
    const atn = recognizer.atn;
    let ctx = recognizer.context;
    const recoverSet = new IntervalSet();
    while (ctx !== null && ctx.invokingState >= 0) {
      const invokingState = atn.states[ctx.invokingState];
      const rt = invokingState.transitions[0];
      const follow = atn.nextTokens(rt.followState);
      recoverSet.addSet(follow);
      ctx = ctx.parent;
    }
    recoverSet.removeOne(Token.EPSILON);
    return recoverSet;
  }
  /** Consume tokens until one matches the given token set. */
  consumeUntil(recognizer, set) {
    let ttype = recognizer.tokenStream?.LA(1) ?? -1;
    while (ttype !== Token.EOF && !set.contains(ttype)) {
      recognizer.consume();
      ttype = recognizer.tokenStream?.LA(1) ?? -1;
    }
  }
};

// src/BailErrorStrategy.ts
var BailErrorStrategy = class extends DefaultErrorStrategy {
  static {
    __name(this, "BailErrorStrategy");
  }
  /**
   * Instead of recovering from exception `e`, re-throw it wrapped
   * in a {@link ParseCancellationException} so it is not caught by the
   * rule function catches. Use {@link Exception//getCause()} to get the
   * original {@link RecognitionException}.
   */
  recover(recognizer, e) {
    throw new ParseCancellationException(e);
  }
  /**
   * Make sure we don't attempt to recover inline; if the parser
   * successfully recovers, it won't throw an exception.
   */
  recoverInline(recognizer) {
    const exception = new InputMismatchException(recognizer);
    throw new ParseCancellationException(exception);
  }
  // Make sure we don't attempt to recover from problems in subrules.
  sync(_recognizer) {
  }
};

// src/ListTokenSource.ts
var ListTokenSource = class {
  static {
    __name(this, "ListTokenSource");
  }
  /**
   * The name of the input source. If this value is `null`, a call to
   * {@link #getSourceName} should return the source name used to create the
   * the next token in {@link #tokens} (or the previous token if the end of
   * the input has been reached).
   */
  sourceName;
  tokenFactory = CommonTokenFactory.DEFAULT;
  /**
   * The wrapped collection of {@link Token} objects to return.
   */
  tokens;
  /**
   * The index into {@link tokens} of token to return by the next call to
   * {@link #nextToken}. The end of the input is indicated by this value
   * being greater than or equal to the number of items in {@link #tokens}.
   */
  i;
  /**
   * This field caches the EOF token for the token source.
   */
  eofToken;
  constructor(tokens, sourceName) {
    this.tokens = tokens;
    this.sourceName = sourceName ?? "";
  }
  get column() {
    if (this.i < this.tokens.length) {
      return this.tokens[this.i].column;
    }
    if (this.eofToken !== null) {
      return this.eofToken.column;
    }
    if (this.tokens.length > 0) {
      const lastToken = this.tokens[this.tokens.length - 1];
      const tokenText = lastToken.text;
      if (tokenText) {
        const lastNewLine = tokenText.lastIndexOf("\n");
        if (lastNewLine >= 0) {
          return tokenText.length - lastNewLine - 1;
        }
      }
      return lastToken.column + lastToken.stop - lastToken.start + 1;
    }
    return 0;
  }
  nextToken() {
    if (this.i >= this.tokens.length) {
      if (this.eofToken === null) {
        let start = -1;
        if (this.tokens.length > 0) {
          const previousStop = this.tokens[this.tokens.length - 1].stop;
          if (previousStop !== -1) {
            start = previousStop + 1;
          }
        }
        const stop = Math.max(-1, start - 1);
        this.eofToken = this.tokenFactory.create(
          [this, this.inputStream],
          Token.EOF,
          "EOF",
          Token.DEFAULT_CHANNEL,
          start,
          stop,
          this.line,
          this.column
        );
      }
      return this.eofToken;
    }
    const t = this.tokens[this.i];
    if (this.i === this.tokens.length - 1 && t.type === Token.EOF) {
      this.eofToken = t;
    }
    this.i++;
    return t;
  }
  get line() {
    if (this.i < this.tokens.length) {
      return this.tokens[this.i].line;
    }
    if (this.eofToken !== null) {
      return this.eofToken.line;
    }
    if (this.tokens.length > 0) {
      const lastToken = this.tokens[this.tokens.length - 1];
      let line = lastToken.line;
      const tokenText = lastToken.text;
      if (tokenText) {
        for (const char of tokenText) {
          if (char === "\n") {
            line++;
          }
        }
      }
      return line;
    }
    return 1;
  }
  get inputStream() {
    if (this.i < this.tokens.length) {
      return this.tokens[this.i].inputStream;
    }
    if (this.eofToken !== null) {
      return this.eofToken.inputStream;
    }
    if (this.tokens.length > 0) {
      return this.tokens[this.tokens.length - 1].inputStream;
    }
    return null;
  }
  getSourceName() {
    if (this.sourceName !== null) {
      return this.sourceName;
    }
    const inputStream = this.inputStream;
    if (inputStream !== null) {
      return inputStream.getSourceName();
    }
    return "List";
  }
};

// src/InterpreterRuleContext.ts
var InterpreterRuleContext = class extends ParserRuleContext {
  static {
    __name(this, "InterpreterRuleContext");
  }
  /** This is the backing field for {@link #getRuleIndex}. */
  #ruleIndex;
  constructor(ruleIndex, parent, invokingStateNumber) {
    super(parent, invokingStateNumber);
    this.#ruleIndex = ruleIndex;
  }
  get ruleIndex() {
    return this.#ruleIndex;
  }
};

// src/TraceListener.ts
var TraceListener = class {
  static {
    __name(this, "TraceListener");
  }
  parser;
  constructor(parser) {
    this.parser = parser;
  }
  enterEveryRule(ctx) {
    console.log("enter   " + this.parser.ruleNames[ctx.ruleIndex] + ", LT(1)=" + this.parser.inputStream?.LT(1)?.text);
  }
  visitTerminal(node) {
    console.log("consume " + node.getSymbol() + " rule " + this.parser.ruleNames[this.parser.context.ruleIndex]);
  }
  exitEveryRule(ctx) {
    console.log("exit    " + this.parser.ruleNames[ctx.ruleIndex] + ", LT(1)=" + this.parser.inputStream?.LT(1)?.text);
  }
  visitErrorNode(_node) {
  }
};

// src/Parser.ts
var Parser = class extends Recognizer {
  static {
    __name(this, "Parser");
  }
  /** For testing only. */
  printer = null;
  /**
   * Specifies whether or not the parser should construct a parse tree during
   * the parsing process. The default value is `true`.
   *
   * @see #getBuildParseTree
   * @see #setBuildParseTree
   */
  buildParseTrees = true;
  /**
   * The error handling strategy for the parser. The default value is a new
   * instance of {@link DefaultErrorStrategy}.
   *
   * @see #getErrorHandler
   * @see #setErrorHandler
   */
  errorHandler = new DefaultErrorStrategy();
  /**
   * The {@link ParserRuleContext} object for the currently executing rule.
   * This is always non-null during the parsing process.
   */
  // TODO: make private
  context = null;
  precedenceStack = [];
  /**
   * The list of {@link ParseTreeListener} listeners registered to receive
   * events during the parse.
   *
   * @see #addParseListener
   */
  parseListeners = null;
  /**
   * The number of syntax errors reported during parsing. This value is
   * incremented each time {@link #notifyErrorListeners} is called.
   */
  syntaxErrors = 0;
  /** Indicates parser has matched EOF token. See {@link #exitRule()}. */
  matchedEOF = false;
  /**
   * When {@link #setTrace}`(true)` is called, a reference to the
   * {@link TraceListener} is stored here so it can be easily removed in a
   * later call to {@link #setTrace}`(false)`. The listener itself is
   * implemented as a parser listener so this field is not directly used by
   * other parser methods.
   */
  #tracer = null;
  /**
   * This field holds the deserialized {@link ATN} with bypass alternatives, created
   * lazily upon first demand. In 4.10 I changed from map<serializedATNstring, ATN>
   * since we only need one per parser object and also it complicates other targets
   * that don't use ATN strings.
   *
   * @see ATNDeserializationOptions#isGenerateRuleBypassTransitions()
   */
  #bypassAltsAtnCache = null;
  #inputStream;
  /**
   * This is all the parsing support code essentially. Most of it is error recovery stuff.
   */
  constructor(input) {
    super();
    this.precedenceStack.push(0);
    this.syntaxErrors = 0;
    this.#inputStream = input;
  }
  /** reset the parser's state */
  reset(rewindInputStream = true) {
    if (rewindInputStream) {
      this.inputStream.seek(0);
    }
    this.errorHandler.reset(this);
    this.context = null;
    this.syntaxErrors = 0;
    this.matchedEOF = false;
    this.setTrace(false);
    this.precedenceStack = [];
    this.precedenceStack.push(0);
    if (this.interpreter) {
      this.interpreter.reset();
    }
  }
  /**
   * Match current input symbol against `ttype`. If the symbol type
   * matches, {@link ANTLRErrorStrategy//reportMatch} and {@link consume} are
   * called to complete the match process.
   *
   * If the symbol type does not match,
   * {@link ANTLRErrorStrategy//recoverInline} is called on the current error
   * strategy to attempt recovery. If {@link buildParseTree} is
   * `true` and the token index of the symbol returned by
   * {@link ANTLRErrorStrategy//recoverInline} is -1, the symbol is added to
   * the parse tree by calling {@link ParserRuleContext//addErrorNode}.
   *
   * @param ttype the token type to match
   * @returns the matched symbol
   * @throws RecognitionException if the current input symbol did not match
   * `ttype` and the error strategy could not recover from the
   * mismatched symbol
   */
  match(ttype) {
    let t = this.getCurrentToken();
    if (t.type === ttype) {
      if (ttype === Token.EOF) {
        this.matchedEOF = true;
      }
      this.errorHandler.reportMatch(this);
      this.consume();
    } else {
      t = this.errorHandler.recoverInline(this);
      if (this.buildParseTrees && t.tokenIndex === -1) {
        this.context.addErrorNode(this.createErrorNode(this.context, t));
      }
    }
    return t;
  }
  /**
   * Match current input symbol as a wildcard. If the symbol type matches
   * (i.e. has a value greater than 0), {@link ANTLRErrorStrategy//reportMatch}
   * and {@link consume} are called to complete the match process.
   *
   * If the symbol type does not match,
   * {@link ANTLRErrorStrategy//recoverInline} is called on the current error
   * strategy to attempt recovery. If {@link buildParseTree} is
   * `true` and the token index of the symbol returned by
   * {@link ANTLRErrorStrategy//recoverInline} is -1, the symbol is added to
   * the parse tree by calling {@link ParserRuleContext//addErrorNode}.
   *
   * @returns the matched symbol
   * @throws RecognitionException if the current input symbol did not match
   * a wildcard and the error strategy could not recover from the mismatched
   * symbol
   */
  matchWildcard() {
    let t = this.getCurrentToken();
    if (t.type > 0) {
      this.errorHandler.reportMatch(this);
      this.consume();
    } else {
      t = this.errorHandler.recoverInline(this);
      if (this.buildParseTrees && t.tokenIndex === -1) {
        this.context.addErrorNode(this.createErrorNode(this.context, t));
      }
    }
    return t;
  }
  getParseListeners() {
    return this.parseListeners ?? [];
  }
  /**
   * Registers `listener` to receive events during the parsing process.
   *
   * To support output-preserving grammar transformations (including but not
   * limited to left-recursion removal, automated left-factoring, and
   * optimized code generation), calls to listener methods during the parse
   * may differ substantially from calls made by
   * {@link ParseTreeWalker//DEFAULT} used after the parse is complete. In
   * particular, rule entry and exit events may occur in a different order
   * during the parse than after the parser. In addition, calls to certain
   * rule entry methods may be omitted.
   *
   * With the following specific exceptions, calls to listener events are
   * deterministic*, i.e. for identical input the calls to listener
   * methods will be the same.
   *
   * - Alterations to the grammar used to generate code may change the
   * behavior of the listener calls.
   * - Alterations to the command line options passed to ANTLR 4 when
   * generating the parser may change the behavior of the listener calls.
   * - Changing the version of the ANTLR Tool used to generate the parser
   * may change the behavior of the listener calls.
   *
   * @param listener the listener to add
   *
   * @throws NullPointerException if {@code} listener is `null`
   */
  addParseListener(listener) {
    if (listener === null) {
      throw new Error("listener");
    }
    if (this.parseListeners === null) {
      this.parseListeners = [];
    }
    this.parseListeners.push(listener);
  }
  /**
   * Remove `listener` from the list of parse listeners.
   *
   * If `listener` is `null` or has not been added as a parse
   * listener, this method does nothing.
   *
   * @param listener the listener to remove
   */
  removeParseListener(listener) {
    if (this.parseListeners !== null && listener !== null) {
      const idx = this.parseListeners.indexOf(listener);
      if (idx >= 0) {
        this.parseListeners.splice(idx, 1);
      }
      if (this.parseListeners.length === 0) {
        this.parseListeners = null;
      }
    }
  }
  // Remove all parse listeners.
  removeParseListeners() {
    this.parseListeners = null;
  }
  // Notify any parse listeners of an enter rule event.
  triggerEnterRuleEvent() {
    if (this.parseListeners !== null) {
      const ctx = this.context;
      this.parseListeners.forEach((listener) => {
        listener.enterEveryRule(ctx);
        ctx.enterRule(listener);
      });
    }
  }
  /**
   * Notify any parse listeners of an exit rule event.
   *
   * @see //addParseListener
   */
  triggerExitRuleEvent() {
    if (this.parseListeners !== null) {
      const ctx = this.context;
      this.parseListeners.slice(0).reverse().forEach((listener) => {
        ctx.exitRule(listener);
        listener.exitEveryRule(ctx);
      });
    }
  }
  getTokenFactory() {
    return this.inputStream.tokenSource.tokenFactory;
  }
  // Tell our token source and error strategy about a new way to create tokens.
  setTokenFactory(factory) {
    this.inputStream.tokenSource.tokenFactory = factory;
  }
  /**
   * The preferred method of getting a tree pattern. For example, here's a
   * sample use:
   *
   * ```
   * const t = parser.expr();
   * const p = parser.compileParseTreePattern("<ID>+0", MyParser.RULE_expr);
   * const m = p.match(t);
   * const id = m.get("ID");
   * ```
   */
  compileParseTreePattern(pattern, patternRuleIndex, lexer) {
    if (!lexer) {
      if (this.tokenStream !== null) {
        const tokenSource = this.tokenStream.tokenSource;
        if (tokenSource instanceof Lexer) {
          lexer = tokenSource;
        }
      }
    }
    if (!lexer) {
      throw new Error("Parser can't discover a lexer to use");
    }
    const m2 = new ParseTreePatternMatcher(lexer, this);
    return m2.compile(pattern, patternRuleIndex);
  }
  /**
   * The ATN with bypass alternatives is expensive to create so we create it
   * lazily.
   *
   * @throws UnsupportedOperationException if the current parser does not
   * implement the {@link getSerializedATN()} method.
   */
  getATNWithBypassAlts() {
    const serializedAtn = this.getSerializedATN();
    if (serializedAtn === null) {
      throw new Error("The current parser does not support an ATN with bypass alternatives.");
    }
    if (this.#bypassAltsAtnCache !== null) {
      return this.#bypassAltsAtnCache;
    }
    const deserializationOptions = { readOnly: false, verifyATN: true, generateRuleBypassTransitions: true };
    this.#bypassAltsAtnCache = new ATNDeserializer(deserializationOptions).deserialize(serializedAtn);
    return this.#bypassAltsAtnCache;
  }
  /**
   * Gets the number of syntax errors reported during parsing. This value is
   * incremented each time {@link notifyErrorListeners} is called.
   */
  get numberOfSyntaxErrors() {
    return this.syntaxErrors;
  }
  get inputStream() {
    return this.#inputStream;
  }
  set inputStream(input) {
    this.tokenStream = input;
  }
  get tokenStream() {
    return this.#inputStream;
  }
  /** Set the token stream and reset the parser. */
  set tokenStream(input) {
    this.reset(false);
    this.#inputStream = input;
  }
  /**
   * Match needs to return the current input symbol, which gets put
   * into the label for the associated token ref; e.g., x=ID.
   */
  getCurrentToken() {
    return this.inputStream.LT(1);
  }
  notifyErrorListeners(msg, offendingToken, err) {
    offendingToken = offendingToken ?? null;
    err = err ?? null;
    if (offendingToken === null) {
      offendingToken = this.getCurrentToken();
    }
    this.syntaxErrors += 1;
    const line = offendingToken.line;
    const column = offendingToken.column;
    this.errorListenerDispatch.syntaxError(this, offendingToken, line, column, msg, err);
  }
  /**
   * Consume and return the {@link getCurrentToken current symbol}.
   *
   * E.g., given the following input with `A` being the current
   * lookahead symbol, this function moves the cursor to `B` and returns
   * `A`.
   *
   * ```
   * A B
   * ^
   * ```
   *
   * If the parser is not in error recovery mode, the consumed symbol is added
   * to the parse tree using {@link ParserRuleContext//addChild(Token)}, and
   * {@link ParseTreeListener//visitTerminal} is called on any parse listeners.
   * If the parser *is* in error recovery mode, the consumed symbol is
   * added to the parse tree using
   * {@link ParserRuleContext//addErrorNode(Token)}, and
   * {@link ParseTreeListener//visitErrorNode} is called on any parse
   * listeners.
   */
  consume() {
    const o = this.getCurrentToken();
    if (o.type !== Token.EOF) {
      this.tokenStream.consume();
    }
    const hasListener = this.parseListeners !== null && this.parseListeners.length > 0;
    if (this.buildParseTrees || hasListener) {
      let node;
      if (this.errorHandler.inErrorRecoveryMode(this)) {
        node = this.context.addErrorNode(this.createErrorNode(this.context, o));
      } else {
        node = this.context.addTokenNode(o);
      }
      if (hasListener) {
        this.parseListeners.forEach((listener) => {
          if (node instanceof ErrorNode) {
            listener.visitErrorNode(node);
          } else {
            listener.visitTerminal(node);
          }
        });
      }
    }
    return o;
  }
  addContextToParseTree() {
    if (this.context?.parent) {
      this.context.parent.addChild(this.context);
    }
  }
  /**
   * Always called by generated parsers upon entry to a rule. Access field
   * {@link context} get the current context.
   */
  enterRule(localctx, state, _ruleIndex) {
    this.state = state;
    this.context = localctx;
    this.context.start = this.inputStream.LT(1);
    if (this.buildParseTrees) {
      this.addContextToParseTree();
    }
    this.triggerEnterRuleEvent();
  }
  exitRule() {
    if (this.matchedEOF) {
      this.context.stop = this.inputStream.LT(1);
    } else {
      this.context.stop = this.inputStream.LT(-1);
    }
    this.triggerExitRuleEvent();
    this.state = this.context.invokingState;
    this.context = this.context.parent;
  }
  enterOuterAlt(localctx, altNum) {
    localctx.setAltNumber(altNum);
    if (this.buildParseTrees && this.context !== localctx) {
      if (this.context?.parent) {
        this.context.parent.removeLastChild();
        this.context.parent.addChild(localctx);
      }
    }
    this.context = localctx;
  }
  /**
   * Get the precedence level for the top-most precedence rule.
   *
   * @returns The precedence level for the top-most precedence rule, or -1 if
   * the parser context is not nested within a precedence rule.
   */
  getPrecedence() {
    if (this.precedenceStack.length === 0) {
      return -1;
    }
    return this.precedenceStack[this.precedenceStack.length - 1];
  }
  enterRecursionRule(localctx, state, ruleIndex, precedence) {
    this.state = state;
    this.precedenceStack.push(precedence);
    this.context = localctx;
    this.context.start = this.inputStream.LT(1);
    this.triggerEnterRuleEvent();
  }
  /** Like {@link enterRule} but for recursive rules. */
  pushNewRecursionContext(localctx, state, _ruleIndex) {
    const previous = this.context;
    previous.parent = localctx;
    previous.invokingState = state;
    previous.stop = this.inputStream.LT(-1);
    this.context = localctx;
    this.context.start = previous.start;
    if (this.buildParseTrees) {
      this.context.addChild(previous);
    }
    this.triggerEnterRuleEvent();
  }
  unrollRecursionContexts(parent) {
    this.precedenceStack.pop();
    this.context.stop = this.inputStream.LT(-1);
    const retCtx = this.context;
    const parseListeners = this.getParseListeners();
    if (parseListeners !== null && parseListeners.length > 0) {
      while (this.context !== parent) {
        this.triggerExitRuleEvent();
        this.context = this.context.parent;
      }
    } else {
      this.context = parent;
    }
    retCtx.parent = parent;
    if (this.buildParseTrees && parent !== null) {
      parent.addChild(retCtx);
    }
  }
  getInvokingContext(ruleIndex) {
    let ctx = this.context;
    while (ctx !== null) {
      if (ctx.ruleIndex === ruleIndex) {
        return ctx;
      }
      ctx = ctx.parent;
    }
    return null;
  }
  precpred(_localctx, precedence) {
    return precedence >= this.precedenceStack[this.precedenceStack.length - 1];
  }
  /**
   * Checks whether or not `symbol` can follow the current state in the
   * ATN. The behavior of this method is equivalent to the following, but is
   * implemented such that the complete context-sensitive follow set does not
   * need to be explicitly constructed.
   *
   * ```
   * return getExpectedTokens().contains(symbol);
   * ```
   *
   * @param symbol the symbol type to check
   * @returns `true` if `symbol` can follow the current state in
   * the ATN, otherwise `false`.
   */
  isExpectedToken(symbol) {
    const atn = this.interpreter.atn;
    let ctx = this.context;
    const s = atn.states[this.state];
    let following = atn.nextTokens(s);
    if (following.contains(symbol)) {
      return true;
    }
    if (!following.contains(Token.EPSILON)) {
      return false;
    }
    while (ctx !== null && ctx.invokingState >= 0 && following.contains(Token.EPSILON)) {
      const invokingState = atn.states[ctx.invokingState];
      const rt = invokingState.transitions[0];
      following = atn.nextTokens(rt.followState);
      if (following.contains(symbol)) {
        return true;
      }
      ctx = ctx.parent;
    }
    if (following.contains(Token.EPSILON) && symbol === Token.EOF) {
      return true;
    } else {
      return false;
    }
  }
  /**
   * Computes the set of input symbols which could follow the current parser
   * state and context, as given by {@link getState} and {@link getContext},
   * respectively.
   *
   * {@link ATN.getExpectedTokens ATN.getExpectedTokens(int, RuleContext)}
   */
  getExpectedTokens() {
    return this.interpreter.atn.getExpectedTokens(this.state, this.context);
  }
  getExpectedTokensWithinCurrentRule() {
    const atn = this.interpreter.atn;
    const s = atn.states[this.state];
    return atn.nextTokens(s);
  }
  /** Get a rule's index (i.e., `RULE_ruleName` field) or -1 if not found. */
  getRuleIndex(ruleName) {
    return this.getRuleIndexMap().get(ruleName) ?? -1;
  }
  /**
   * @returns an array of string of the rule names in your parser instance
   * leading up to a call to the current rule. You could override if
   * you want more details such as the file/line info of where
   * in the ATN a rule is invoked.
   *
   * this is very useful for error messages.
   */
  getRuleInvocationStack(p) {
    p = p ?? null;
    if (p === null) {
      p = this.context;
    }
    const stack = [];
    while (p !== null) {
      const ruleIndex = p.ruleIndex;
      if (ruleIndex < 0) {
        stack.push("n/a");
      } else {
        stack.push(this.ruleNames[ruleIndex]);
      }
      p = p.parent;
    }
    return stack;
  }
  /**
   * For debugging and other purposes.
   *
   * TODO: this differs from the Java version. Change it.
   */
  getDFAStrings() {
    return this.interpreter.decisionToDFA.toString();
  }
  /** For debugging and other purposes. */
  dumpDFA() {
    let seenOne = false;
    for (const dfa of this.interpreter.decisionToDFA) {
      if (dfa.length > 0) {
        if (seenOne) {
          console.log();
        }
        if (this.printer) {
          this.printer.println("Decision " + dfa.decision + ":");
          this.printer.print(dfa.toString(this.vocabulary));
        }
        seenOne = true;
      }
    }
  }
  getSourceName() {
    return this.inputStream.getSourceName();
  }
  getParseInfo() {
    const interp = this.interpreter;
    if (interp instanceof ProfilingATNSimulator) {
      return new ParseInfo(interp);
    }
    return void 0;
  }
  setProfile(profile) {
    const interp = this.interpreter;
    const saveMode = interp.predictionMode;
    if (profile) {
      if (!(interp instanceof ProfilingATNSimulator)) {
        this.interpreter = new ProfilingATNSimulator(this);
      }
    } else if (interp instanceof ProfilingATNSimulator) {
      const sharedContextCache = interp.sharedContextCache;
      if (sharedContextCache) {
        const sim = new ParserATNSimulator(this, this.atn, interp.decisionToDFA, sharedContextCache);
        this.interpreter = sim;
      }
    }
    this.interpreter.predictionMode = saveMode;
  }
  /**
   * During a parse is sometimes useful to listen in on the rule entry and exit
   * events as well as token matches. this is for quick and dirty debugging.
   */
  setTrace(trace) {
    if (!trace) {
      this.removeParseListener(this.#tracer);
      this.#tracer = null;
    } else {
      if (this.#tracer !== null) {
        this.removeParseListener(this.#tracer);
      }
      this.#tracer = new TraceListener(this);
      this.addParseListener(this.#tracer);
    }
  }
  createTerminalNode(parent, t) {
    return new TerminalNode(t);
  }
  createErrorNode(parent, t) {
    return new ErrorNode(t);
  }
};

// src/ParserInterpreter.ts
var ParserInterpreter = class extends Parser {
  static {
    __name(this, "ParserInterpreter");
  }
  rootContext;
  overrideDecisionRoot = null;
  parentContextStack = [];
  #overrideDecision = -1;
  #overrideDecisionInputIndex = -1;
  #overrideDecisionAlt = -1;
  #overrideDecisionReached = false;
  #grammarFileName;
  #atn;
  #ruleNames;
  #vocabulary;
  #decisionToDFA;
  #sharedContextCache = new PredictionContextCache();
  #pushRecursionContextStates;
  constructor(grammarFileName, vocabulary, ruleNames, atn, input) {
    super(input);
    this.#grammarFileName = grammarFileName;
    this.#atn = atn;
    this.#ruleNames = ruleNames.slice(0);
    this.#vocabulary = vocabulary;
    this.#pushRecursionContextStates = new BitSet();
    for (const state of atn.states) {
      if (state instanceof StarLoopEntryState && state.precedenceRuleDecision) {
        this.#pushRecursionContextStates.set(state.stateNumber);
      }
    }
    this.#decisionToDFA = atn.decisionToState.map((ds, i) => {
      return new DFA(ds, i);
    });
    this.interpreter = new ParserATNSimulator(this, atn, this.#decisionToDFA, this.#sharedContextCache);
  }
  reset() {
    super.reset();
    this.#overrideDecisionReached = false;
    this.overrideDecisionRoot = null;
  }
  get atn() {
    return this.#atn;
  }
  get vocabulary() {
    return this.#vocabulary;
  }
  get ruleNames() {
    return this.#ruleNames;
  }
  get grammarFileName() {
    return this.#grammarFileName;
  }
  get atnState() {
    return this.#atn.states[this.state];
  }
  parse(startRuleIndex) {
    const startRuleStartState = this.#atn.ruleToStartState[startRuleIndex];
    this.rootContext = this.createInterpreterRuleContext(null, ATNState.INVALID_STATE_NUMBER, startRuleIndex);
    if (startRuleStartState.isLeftRecursiveRule) {
      this.enterRecursionRule(this.rootContext, startRuleStartState.stateNumber, startRuleIndex, 0);
    } else {
      this.enterRule(this.rootContext, startRuleStartState.stateNumber, startRuleIndex);
    }
    while (true) {
      const p = this.atnState;
      switch (p.constructor.stateType) {
        case ATNState.RULE_STOP:
          if (this.context?.isEmpty()) {
            if (startRuleStartState.isLeftRecursiveRule) {
              const result = this.context;
              const parentContext = this.parentContextStack.pop();
              this.unrollRecursionContexts(parentContext[0]);
              return result;
            } else {
              this.exitRule();
              return this.rootContext;
            }
          }
          this.visitRuleStopState(p);
          break;
        default:
          try {
            this.visitState(p);
          } catch (e) {
            if (e instanceof RecognitionException) {
              this.state = this.#atn.ruleToStopState[p.ruleIndex].stateNumber;
              this.errorHandler.reportError(this, e);
              this.recover(e);
            } else {
              throw e;
            }
          }
          break;
      }
    }
  }
  addDecisionOverride(decision, tokenIndex, forcedAlt) {
    this.#overrideDecision = decision;
    this.#overrideDecisionInputIndex = tokenIndex;
    this.#overrideDecisionAlt = forcedAlt;
  }
  get overrideDecision() {
    return this.#overrideDecision;
  }
  get overrideDecisionInputIndex() {
    return this.#overrideDecisionInputIndex;
  }
  enterRecursionRule(localctx, state, ruleIndex, precedence) {
    this.parentContextStack.push([this.context, localctx.invokingState]);
    super.enterRecursionRule(localctx, state, ruleIndex, precedence);
  }
  visitState(p) {
    let predictedAlt = 1;
    if (p instanceof DecisionState) {
      predictedAlt = this.visitDecisionState(p);
    }
    const transition = p.transitions[predictedAlt - 1];
    switch (transition.transitionType) {
      case Transition.EPSILON:
        if (this.#pushRecursionContextStates.get(p.stateNumber) && !(transition.target.constructor.stateType === ATNState.LOOP_END)) {
          const parentContext = this.parentContextStack[this.parentContextStack.length - 1];
          const localctx = this.createInterpreterRuleContext(parentContext[0], parentContext[1], this.context.ruleIndex);
          this.pushNewRecursionContext(
            localctx,
            this.#atn.ruleToStartState[p.ruleIndex].stateNumber,
            this.context.ruleIndex
          );
        }
        break;
      case Transition.ATOM:
        this.match(transition.label.minElement);
        break;
      case Transition.RANGE:
      case Transition.SET:
      case Transition.NOT_SET:
        if (!transition.matches(this.inputStream.LA(1), Token.MIN_USER_TOKEN_TYPE, 65535)) {
          this.recoverInline();
        }
        this.matchWildcard();
        break;
      case Transition.WILDCARD:
        this.matchWildcard();
        break;
      case Transition.RULE:
        const ruleStartState = transition.target;
        const ruleIndex = ruleStartState.ruleIndex;
        const newContext = this.createInterpreterRuleContext(this.context, p.stateNumber, ruleIndex);
        if (ruleStartState.isLeftRecursiveRule) {
          this.enterRecursionRule(
            newContext,
            ruleStartState.stateNumber,
            ruleIndex,
            transition.precedence
          );
        } else {
          this.enterRule(newContext, transition.target.stateNumber, ruleIndex);
        }
        break;
      case Transition.PREDICATE:
        const predicateTransition = transition;
        if (!this.sempred(this.context, predicateTransition.ruleIndex, predicateTransition.predIndex)) {
          throw new FailedPredicateException(this);
        }
        break;
      case Transition.ACTION:
        const actionTransition = transition;
        this.action(this.context, actionTransition.ruleIndex, actionTransition.actionIndex);
        break;
      case Transition.PRECEDENCE:
        if (!this.precpred(this.context, transition.precedence)) {
          const precedence = transition.precedence;
          throw new FailedPredicateException(this, `precpred(_ctx, ${precedence})`);
        }
        break;
      default:
        throw new Error("UnsupportedOperationException: Unrecognized ATN transition type.");
    }
    this.state = transition.target.stateNumber;
  }
  visitDecisionState(p) {
    let predictedAlt = 1;
    if (p.transitions.length > 1) {
      this.errorHandler.sync(this);
      const decision = p.decision;
      if (decision === this.#overrideDecision && this.inputStream.index === this.#overrideDecisionInputIndex && !this.#overrideDecisionReached) {
        predictedAlt = this.#overrideDecisionAlt;
        this.#overrideDecisionReached = true;
      } else {
        predictedAlt = this.interpreter.adaptivePredict(this.inputStream, decision, this.context);
      }
    }
    return predictedAlt;
  }
  createInterpreterRuleContext(parent, invokingStateNumber, ruleIndex) {
    return new InterpreterRuleContext(ruleIndex, parent, invokingStateNumber);
  }
  visitRuleStopState(p) {
    const ruleStartState = this.#atn.ruleToStartState[p.ruleIndex];
    if (ruleStartState.isLeftRecursiveRule) {
      const [parentContext, state] = this.parentContextStack.pop();
      this.unrollRecursionContexts(parentContext);
      this.state = state;
    } else {
      this.exitRule();
    }
    const ruleTransition = this.#atn.states[this.state].transitions[0];
    this.state = ruleTransition.followState.stateNumber;
  }
  recover(e) {
    const i = this.inputStream.index;
    this.errorHandler.recover(this, e);
    if (this.inputStream.index === i) {
      const tok = e.offendingToken;
      if (!tok) {
        throw new Error("Expected exception to have an offending token");
      }
      const source = tok.tokenSource;
      const stream = source?.inputStream ?? null;
      const sourcePair = [source, stream];
      if (e instanceof InputMismatchException) {
        const expectedTokens = e.getExpectedTokens();
        if (!expectedTokens) {
          throw new Error("Expected the exception to provide expected tokens");
        }
        let expectedTokenType = Token.INVALID_TYPE;
        if (expectedTokens.length !== 0) {
          expectedTokenType = expectedTokens.minElement;
        }
        const errToken = this.getTokenFactory().create(
          sourcePair,
          expectedTokenType,
          tok.text,
          Token.DEFAULT_CHANNEL,
          -1,
          -1,
          tok.line,
          tok.column
        );
        this.context.addErrorNode(this.createErrorNode(this.context, errToken));
      } else {
        const errToken = this.getTokenFactory().create(
          sourcePair,
          Token.INVALID_TYPE,
          tok.text,
          Token.DEFAULT_CHANNEL,
          -1,
          -1,
          tok.line,
          tok.column
        );
        this.context.addErrorNode(this.createErrorNode(this.context, errToken));
      }
    }
  }
  recoverInline() {
    return this.errorHandler.recoverInline(this);
  }
};

// src/misc/MultiMap.ts
var MultiMap = class extends Map {
  static {
    __name(this, "MultiMap");
  }
  map(key, value) {
    let elementsForKey = this.get(key);
    if (!elementsForKey) {
      elementsForKey = new Array();
      this.set(key, elementsForKey);
    }
    elementsForKey.push(value);
  }
  getPairs() {
    const pairs = new Array();
    for (const key of this.keys()) {
      const keys = this.get(key) ?? [];
      for (const value of keys) {
        pairs.push([key, value]);
      }
    }
    return pairs;
  }
};

// src/tree/pattern/CannotInvokeStartRuleError.ts
var CannotInvokeStartRuleError = class extends Error {
  static {
    __name(this, "CannotInvokeStartRuleError");
  }
  constructor(e) {
    super();
    this.cause = e;
  }
};

// src/tree/pattern/RuleTagToken.ts
var RuleTagToken = class {
  static {
    __name(this, "RuleTagToken");
  }
  /** The name of the label associated with the rule tag. */
  label;
  /** The name of the parser rule associated with this rule tag. */
  ruleName;
  /**
   * The token type for the current token. This is the token type assigned to
   * the bypass alternative for the rule during ATN deserialization.
   */
  bypassTokenType;
  constructor(ruleName, bypassTokenType, label) {
    this.ruleName = ruleName;
    this.bypassTokenType = bypassTokenType;
    this.label = label;
  }
  /**
   * Rule tag tokens are always placed on the {@link #DEFAULT_CHANNEL}.
   */
  get channel() {
    return Token.DEFAULT_CHANNEL;
  }
  /**
   * This method returns the rule tag formatted with `<` and `>`
   * delimiters.
   */
  get text() {
    if (this.label !== null) {
      return "<" + this.label + ":" + this.ruleName + ">";
    }
    return "<" + this.ruleName + ">";
  }
  /**
   * Rule tag tokens have types assigned according to the rule bypass
   * transitions created during ATN deserialization.
   */
  get type() {
    return this.bypassTokenType;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns 0.
   */
  get line() {
    return 0;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns -1.
   */
  get column() {
    return -1;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns -1.
   */
  get tokenIndex() {
    return -1;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns -1.
   */
  get start() {
    return -1;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns -1.
   */
  get stop() {
    return -1;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns `null`.
   */
  get tokenSource() {
    return null;
  }
  /**
   * The implementation for {@link RuleTagToken} always returns `null`.
   */
  get inputStream() {
    return null;
  }
  /**
   * The implementation for {@link RuleTagToken} returns a string of the form
   * `ruleName:bypassTokenType`.
   */
  toString() {
    return this.ruleName + ":" + this.bypassTokenType;
  }
};

// src/tree/pattern/StartRuleDoesNotConsumeFullPatternError.ts
var StartRuleDoesNotConsumeFullPatternError = class extends Error {
  static {
    __name(this, "StartRuleDoesNotConsumeFullPatternError");
  }
};

// src/tree/pattern/TagChunk.ts
var TagChunk = class extends Chunk {
  static {
    __name(this, "TagChunk");
  }
  tag;
  label;
  constructor(...args) {
    let label;
    let tag;
    if (args.length === 1) {
      tag = args[0];
    } else {
      label = args[0];
      tag = args[1];
    }
    super();
    if (!tag) {
      throw new Error("tag cannot be null or empty");
    }
    this.label = label;
    this.tag = tag;
  }
  /**
   * @returns a text representation of the tag chunk. Labeled tags
   * are returned in the form `label:tag`, and unlabeled tags are
   * returned as just the tag name.
   */
  toString() {
    if (this.label !== null) {
      return this.label + ":" + this.tag;
    }
    return this.tag;
  }
};

// src/tree/pattern/TextChunk.ts
var TextChunk = class extends Chunk {
  static {
    __name(this, "TextChunk");
  }
  text;
  /**
   * Constructs a new instance of {@link TextChunk} with the specified text.
   *
   * @param text The text of this chunk.
   */
  constructor(text) {
    super();
    this.text = text;
  }
  /**
   * @returns the result of {@link #getText()} in single quotes.
   */
  toString() {
    return "'" + this.text + "'";
  }
};

// src/tree/pattern/TokenTagToken.ts
var TokenTagToken = class extends CommonToken {
  static {
    __name(this, "TokenTagToken");
  }
  tokenName;
  /**
   * The name of the label associated with the rule tag, or undefined if this is an unlabeled rule tag.
   */
  label;
  constructor(tokenName, type, label) {
    super({ type, source: CommonToken.EMPTY_SOURCE });
    this.tokenName = tokenName;
    this.label = label;
  }
  /**
   *
   * @returns the token tag formatted with `<` and `>` delimiters.
   */
  get text() {
    if (this.label !== null) {
      return "<" + this.label + ":" + this.tokenName + ">";
    }
    return "<" + this.tokenName + ">";
  }
  /**
   * @returns a string of the form `tokenName:type`.
   */
  toString() {
    return this.tokenName + ":" + this.type;
  }
};

// src/tree/pattern/ParseTreePatternMatcher.ts
var ParseTreePatternMatcher = class {
  static {
    __name(this, "ParseTreePatternMatcher");
  }
  start = "<";
  stop = ">";
  escape = "\\";
  /**
   * This is the backing field for {@link #getLexer()}.
   */
  lexer;
  /**
   * This is the backing field for {@link #getParser()}.
   */
  parser;
  // e.g., \< and \> must escape BOTH!
  /**
   * Constructs a {@link ParseTreePatternMatcher} or from a {@link Lexer} and
   * {@link Parser} object. The lexer input stream is altered for tokenizing
   * the tree patterns. The parser is used as a convenient mechanism to get
   * the grammar name, plus token, rule names.
   */
  constructor(lexer, parser) {
    this.lexer = lexer;
    this.parser = parser;
  }
  /**
   * Set the delimiters used for marking rule and token tags within concrete
   * syntax used by the tree pattern parser.
   *
   * @param start The start delimiter.
   * @param stop The stop delimiter.
   * @param escapeLeft The escape sequence to use for escaping a start or stop delimiter.
   *
   * @throws Error if `start` is `null` or empty.
   * @throws Error if `stop` is `null` or empty.
   */
  setDelimiters(start, stop, escapeLeft) {
    if (start === null || start.length === 0) {
      throw new Error("start cannot be null or empty");
    }
    if (stop === null || stop.length === 0) {
      throw new Error("stop cannot be null or empty");
    }
    this.start = start;
    this.stop = stop;
    this.escape = escapeLeft;
  }
  matches(...args) {
    switch (args.length) {
      case 2: {
        const [tree, pattern] = args;
        const labels = new MultiMap();
        const mismatchedNode = this.matchImpl(tree, pattern.getPatternTree(), labels);
        return mismatchedNode === null;
      }
      case 3: {
        const [tree, pattern, patternRuleIndex] = args;
        const p = this.compile(pattern, patternRuleIndex);
        return this.matches(tree, p);
      }
      default: {
        throw new Error("Invalid number of arguments");
      }
    }
  }
  match(...args) {
    switch (args.length) {
      case 2: {
        const [tree, pattern] = args;
        const labels = new MultiMap();
        const mismatchedNode = this.matchImpl(tree, pattern.getPatternTree(), labels);
        return new ParseTreeMatch(tree, pattern, labels, mismatchedNode);
      }
      case 3: {
        const [tree, pattern, patternRuleIndex] = args;
        const p = this.compile(pattern, patternRuleIndex);
        return this.match(tree, p);
      }
      default: {
        throw new Error("Invalid number of arguments");
      }
    }
  }
  /**
   * For repeated use of a tree pattern, compile it to a
   * {@link ParseTreePattern} using this method.
   */
  compile(pattern, patternRuleIndex) {
    const tokenList = this.tokenize(pattern);
    const tokenSrc = new ListTokenSource(tokenList);
    const tokens = new CommonTokenStream(tokenSrc);
    const parserInterp = new ParserInterpreter(
      this.parser.grammarFileName,
      this.parser.vocabulary,
      this.parser.ruleNames,
      this.parser.getATNWithBypassAlts(),
      tokens
    );
    let tree = null;
    try {
      parserInterp.errorHandler = new BailErrorStrategy();
      tree = parserInterp.parse(patternRuleIndex);
    } catch (eOrRe) {
      if (eOrRe instanceof ParseCancellationException) {
        const e = eOrRe;
        throw e.cause;
      } else if (eOrRe instanceof RecognitionException) {
        throw eOrRe;
      } else if (eOrRe instanceof Error) {
        throw new CannotInvokeStartRuleError(eOrRe);
      } else {
        throw eOrRe;
      }
    }
    if (tokens.LA(1) !== Token.EOF) {
      throw new StartRuleDoesNotConsumeFullPatternError();
    }
    return new ParseTreePattern(this, pattern, patternRuleIndex, tree);
  }
  /**
   * Used to convert the tree pattern string into a series of tokens. The
   * input stream is reset.
   */
  getLexer() {
    return this.lexer;
  }
  /**
   * Used to collect to the grammar file name, token names, rule names for
   * used to parse the pattern into a parse tree.
   */
  getParser() {
    return this.parser;
  }
  // ---- SUPPORT CODE ----
  tokenize(pattern) {
    const chunks = this.split(pattern);
    const tokens = new Array();
    for (const chunk of chunks) {
      if (chunk instanceof TagChunk) {
        const tagChunk = chunk;
        const char = tagChunk.tag[0];
        if (char === char.toUpperCase()) {
          const ttype = this.parser.getTokenType(tagChunk.tag);
          if (ttype === Token.INVALID_TYPE) {
            throw new Error("Unknown token " + tagChunk.tag + " in pattern: " + pattern);
          }
          const t = new TokenTagToken(tagChunk.tag, ttype, tagChunk.label);
          tokens.push(t);
        } else {
          if (char === char.toLowerCase()) {
            const ruleIndex = this.parser.getRuleIndex(tagChunk.tag);
            if (ruleIndex === -1) {
              throw new Error("Unknown rule " + tagChunk.tag + " in pattern: " + pattern);
            }
            const ruleImaginaryTokenType = this.parser.getATNWithBypassAlts().ruleToTokenType[ruleIndex];
            tokens.push(new RuleTagToken(tagChunk.tag, ruleImaginaryTokenType, tagChunk.label));
          } else {
            throw new Error("invalid tag: " + tagChunk.tag + " in pattern: " + pattern);
          }
        }
      } else {
        const textChunk = chunk;
        const input = CharStream.fromString(textChunk.text);
        this.lexer.inputStream = input;
        let t = this.lexer.nextToken();
        while (t.type !== Token.EOF) {
          tokens.push(t);
          t = this.lexer.nextToken();
        }
      }
    }
    return tokens;
  }
  /**
   * Split `<ID> = <e:expr> ;` into 4 chunks for tokenizing by {@link #tokenize}.
   */
  split(pattern) {
    let p = 0;
    const n2 = pattern.length;
    const chunks = new Array();
    const starts = new Array();
    const stops = new Array();
    while (p < n2) {
      if (p === pattern.indexOf(this.escape + this.start, p)) {
        p += this.escape.length + this.start.length;
      } else {
        if (p === pattern.indexOf(this.escape + this.stop, p)) {
          p += this.escape.length + this.stop.length;
        } else {
          if (p === pattern.indexOf(this.start, p)) {
            starts.push(p);
            p += this.start.length;
          } else {
            if (p === pattern.indexOf(this.stop, p)) {
              stops.push(p);
              p += this.stop.length;
            } else {
              p++;
            }
          }
        }
      }
    }
    if (starts.length > stops.length) {
      throw new Error("unterminated tag in pattern: " + pattern);
    }
    if (starts.length < stops.length) {
      throw new Error("missing start tag in pattern: " + pattern);
    }
    const tagCount = starts.length;
    for (let i = 0; i < tagCount; i++) {
      if (starts[i] >= stops[i]) {
        throw new Error("tag delimiters out of order in pattern: " + pattern);
      }
    }
    if (tagCount === 0) {
      const text = pattern.substring(0, n2);
      chunks.push(new TextChunk(text));
    }
    if (tagCount > 0 && starts[0] > 0) {
      const text = pattern.substring(0, starts[0]);
      chunks.push(new TextChunk(text));
    }
    for (let i = 0; i < tagCount; i++) {
      const tag = pattern.substring(starts[i] + this.start.length, stops[i]);
      let ruleOrToken = tag;
      let label;
      const colon = tag.indexOf(":");
      if (colon >= 0) {
        label = tag.substring(0, colon);
        ruleOrToken = tag.substring(colon + 1, tag.length);
      }
      chunks.push(new TagChunk(label, ruleOrToken));
      if (i + 1 < tagCount) {
        const text = pattern.substring(stops[i] + this.stop.length, starts[i + 1]);
        chunks.push(new TextChunk(text));
      }
    }
    if (tagCount > 0) {
      const afterLastTag = stops[tagCount - 1] + this.stop.length;
      if (afterLastTag < n2) {
        const text = pattern.substring(afterLastTag, n2);
        chunks.push(new TextChunk(text));
      }
    }
    for (let i = 0; i < chunks.length; i++) {
      const c = chunks[i];
      if (c instanceof TextChunk) {
        const tc = c;
        const unescaped = tc.text.replace(this.escape, "");
        if (unescaped.length < tc.text.length) {
          chunks[i] = new TextChunk(unescaped);
        }
      }
    }
    return chunks;
  }
  /**
   * Recursively walk `tree` against `patternTree`, filling
   * `match.`{@link ParseTreeMatch#labels labels}.
   *
   * @returns the first node encountered in `tree` which does not match
   * a corresponding node in `patternTree`, or `null` if the match
   * was successful. The specific node returned depends on the matching
   * algorithm used by the implementation, and may be overridden.
   */
  matchImpl(tree, patternTree, labels) {
    if (tree instanceof TerminalNode && patternTree instanceof TerminalNode) {
      const t1 = tree;
      const t2 = patternTree;
      let mismatchedNode;
      if (t1.getSymbol().type === t2.getSymbol().type) {
        if (t2.getSymbol() instanceof TokenTagToken) {
          const tokenTagToken = t2.getSymbol();
          labels.map(tokenTagToken.tokenName, tree);
          if (tokenTagToken.label !== void 0) {
            labels.map(tokenTagToken.label, tree);
          }
        } else {
          if (t1.getText() === t2.getText()) {
          } else {
            if (!mismatchedNode) {
              mismatchedNode = t1;
            }
          }
        }
      } else {
        if (!mismatchedNode) {
          mismatchedNode = t1;
        }
      }
      return mismatchedNode;
    }
    if (tree instanceof ParserRuleContext && patternTree instanceof ParserRuleContext) {
      let mismatchedNode;
      const ruleTagToken = this.getRuleTagToken(patternTree);
      if (ruleTagToken) {
        if (tree.ruleIndex === patternTree.ruleIndex) {
          labels.map(ruleTagToken.ruleName, tree);
          if (ruleTagToken.label) {
            labels.map(ruleTagToken.label, tree);
          }
        } else {
          if (!mismatchedNode) {
            mismatchedNode = tree;
          }
        }
        return mismatchedNode;
      }
      if (tree.getChildCount() !== patternTree.getChildCount()) {
        if (!mismatchedNode) {
          mismatchedNode = tree;
        }
        return mismatchedNode;
      }
      const n2 = tree.getChildCount();
      for (let i = 0; i < n2; i++) {
        const childMatch = this.matchImpl(tree.getChild(i), patternTree.getChild(i), labels);
        if (childMatch) {
          return childMatch;
        }
      }
      return mismatchedNode;
    }
    return tree;
  }
  /**
   * Is `t` `(expr <expr>)` subtree?
   */
  getRuleTagToken(t) {
    if (t instanceof ParserRuleContext) {
      if (t.getChildCount() === 1 && t.getChild(0) instanceof TerminalNode) {
        const c = t.getChild(0);
        if (c.getSymbol() instanceof RuleTagToken) {
          return c.getSymbol();
        }
      }
    }
    return void 0;
  }
};

// src/DiagnosticErrorListener.ts
var DiagnosticErrorListener = class extends BaseErrorListener {
  static {
    __name(this, "DiagnosticErrorListener");
  }
  /**
   * When `true`, only exactly known ambiguities are reported.
   */
  exactOnly;
  constructor(exactOnly) {
    super();
    this.exactOnly = exactOnly ?? true;
  }
  reportAmbiguity = /* @__PURE__ */ __name((recognizer, dfa, startIndex, stopIndex, exact, ambigAlts, configs) => {
    if (this.exactOnly && !exact) {
      return;
    }
    const decision = this.getDecisionDescription(recognizer, dfa);
    const conflictingAlts = this.getConflictingAlts(ambigAlts, configs);
    const text = recognizer.tokenStream?.getTextFromInterval(Interval.of(startIndex, stopIndex));
    const message = `reportAmbiguity d=${decision}: ambigAlts=${conflictingAlts}, input='${text}'`;
    recognizer.notifyErrorListeners(message, null, null);
  }, "reportAmbiguity");
  reportAttemptingFullContext = /* @__PURE__ */ __name((recognizer, dfa, startIndex, stopIndex, _conflictingAlts, _configs) => {
    const decision = this.getDecisionDescription(recognizer, dfa);
    const text = recognizer.tokenStream?.getTextFromInterval(Interval.of(startIndex, stopIndex));
    const message = `reportAttemptingFullContext d=${decision}, input='${text}'`;
    recognizer.notifyErrorListeners(message, null, null);
  }, "reportAttemptingFullContext");
  reportContextSensitivity = /* @__PURE__ */ __name((recognizer, dfa, startIndex, stopIndex, _prediction, _configs) => {
    const decision = this.getDecisionDescription(recognizer, dfa);
    const text = recognizer.tokenStream?.getTextFromInterval(Interval.of(startIndex, stopIndex));
    const message = `reportContextSensitivity d=${decision}, input='${text}'`;
    recognizer.notifyErrorListeners(message, null, null);
  }, "reportContextSensitivity");
  getDecisionDescription = /* @__PURE__ */ __name((recognizer, dfa) => {
    const decision = dfa.decision;
    const ruleIndex = dfa.atnStartState.ruleIndex;
    const ruleNames = recognizer.ruleNames;
    if (ruleIndex < 0 || ruleIndex >= ruleNames.length) {
      return decision.toString();
    }
    const ruleName = ruleNames[ruleIndex];
    if (ruleName.length === 0) {
      return decision.toString();
    }
    return `${decision} (${ruleName})`;
  }, "getDecisionDescription");
  /**
   * Computes the set of conflicting or ambiguous alternatives from a
   * configuration set, if that information was not already provided by the
   * parser.
   *
   * @param reportedAlts The set of conflicting or ambiguous alternatives, as
   * reported by the parser.
   * @param configs The conflicting or ambiguous configuration set.
   * @returns Returns `reportedAlts` if it is not `null`, otherwise
   * returns the set of alternatives represented in `configs`.
   */
  getConflictingAlts = /* @__PURE__ */ __name((reportedAlts, configs) => {
    if (reportedAlts) {
      return reportedAlts;
    }
    const result = new BitSet();
    for (let i = 0; i < configs.configs.length; i++) {
      result.set(configs.configs[i].alt);
    }
    return result;
  }, "getConflictingAlts");
};

// src/LexerInterpreter.ts
var LexerInterpreter = class extends Lexer {
  static {
    __name(this, "LexerInterpreter");
  }
  #grammarFileName;
  #atn;
  #ruleNames;
  #channelNames;
  #modeNames;
  #vocabulary;
  #decisionToDFA;
  #sharedContextCache = new PredictionContextCache();
  constructor(grammarFileName, vocabulary, ruleNames, channelNames, modeNames, atn, input) {
    super(input);
    if (atn.grammarType !== ATN.LEXER) {
      throw new Error("IllegalArgumentException: The ATN must be a lexer ATN.");
    }
    this.#grammarFileName = grammarFileName;
    this.#atn = atn;
    this.#ruleNames = ruleNames.slice(0);
    this.#channelNames = channelNames.slice(0);
    this.#modeNames = modeNames.slice(0);
    this.#vocabulary = vocabulary;
    this.#decisionToDFA = atn.decisionToState.map((ds, i) => {
      return new DFA(ds, i);
    });
    this.interpreter = new LexerATNSimulator(this, atn, this.#decisionToDFA, this.#sharedContextCache);
  }
  get atn() {
    return this.#atn;
  }
  get grammarFileName() {
    return this.#grammarFileName;
  }
  get ruleNames() {
    return this.#ruleNames;
  }
  get channelNames() {
    return this.#channelNames;
  }
  get modeNames() {
    return this.#modeNames;
  }
  get vocabulary() {
    return this.#vocabulary;
  }
};

// src/RuntimeMetaData.ts
var RuntimeMetaData = class _RuntimeMetaData {
  static {
    __name(this, "RuntimeMetaData");
  }
  /**
   * A compile-time constant containing the current version of the ANTLR 4
   * runtime library.
   *
   * This compile-time constant value allows generated parsers and other
   * libraries to include a literal reference to the version of the ANTLR 4
   * runtime library the code was compiled against. At each release, we
   * change this value.
   *
   * Version numbers are assumed to have the form
   *
   * major.minor.patch.revision-suffix,
   *
   * with the individual components defined as follows.
   *
   * - major is a required non-negative integer, and is equal to `4` for ANTLR 4.
   * - minor is a required non-negative integer.
   * - patch is an optional non-negative integer. When patch is omitted, the `.` (dot) appearing before it is
   *   also omitted.
   * - revision is an optional non-negative integer, and may only be included when patch is also included.
   *   When revision is omitted, the `.` (dot) appearing before it is also omitted.
   * - suffix is an optional string. When suffix is omitted, the `-` (hyphen-minus) appearing before it is also
   *   omitted.
   */
  static VERSION = "4.13.1";
  /**
   * Gets the currently executing version of the ANTLR 4 runtime library.
   *
   * This method provides runtime access to the {@link VERSION} field, as
   * opposed to directly referencing the field as a compile-time constant.
   *
   * @returns The currently executing version of the ANTLR 4 library
   */
  static getRuntimeVersion() {
    return _RuntimeMetaData.VERSION;
  }
  /**
   * This method provides the ability to detect mismatches between the version
   * of ANTLR 4 used to generate a parser, the version of the ANTLR runtime a
   * parser was compiled against, and the version of the ANTLR runtime which
   * is currently executing.
   *
   * The version check is designed to detect the following two specific
   * scenarios.
   *
   * - The ANTLR Tool version used for code generation does not match the
   * currently executing runtime version.
   * - The ANTLR Runtime version referenced at the time a parser was
   * compiled does not match the currently executing runtime version.
   *
   *
   * Starting with ANTLR 4.3, the code generator emits a call to this method
   * using two constants in each generated lexer and parser: a hard-coded
   * constant indicating the version of the tool used to generate the parser
   * and a reference to the compile-time constant {@link VERSION}. At
   * runtime, this method is called during the initialization of the generated
   * parser to detect mismatched versions, and notify the registered listeners
   * prior to creating instances of the parser.
   *
   *
   * This method does not perform any detection or filtering of semantic
   * changes between tool and runtime versions. It simply checks for a
   * version match and emits an error to stderr if a difference
   * is detected.
   *
   *
   * Note that some breaking changes between releases could result in other
   * types of runtime exceptions, such as a {@link LinkageError}, prior to
   * calling this method. In these cases, the underlying version mismatch will
   * not be reported here. This method is primarily intended to
   * notify users of potential semantic changes between releases that do not
   * result in binary compatibility problems which would be detected by the
   * class loader. As with semantic changes, changes that break binary
   * compatibility between releases are mentioned in the release notes
   * accompanying the affected release.
   *
   *
   * **Additional note for target developers:** The version check
   * implemented by this class is designed to address specific compatibility
   * concerns that may arise during the execution of Java applications. Other
   * targets should consider the implementation of this method in the context
   * of that target's known execution environment, which may or may not
   * resemble the design provided for the Java target.
   *
   * @param generatingToolVersion The version of the tool used to generate a parser.
   * This value may be null when called from user code that was not generated
   * by, and does not reference, the ANTLR 4 Tool itself.
   * @param compileTimeVersion The version of the runtime the parser was
   * compiled against. This should always be passed using a direct reference
   * to {@link VERSION}.
   */
  static checkVersion(generatingToolVersion, compileTimeVersion) {
    const runtimeVersion = _RuntimeMetaData.VERSION;
    let runtimeConflictsWithGeneratingTool = false;
    let runtimeConflictsWithCompileTimeTool = false;
    runtimeConflictsWithGeneratingTool = runtimeVersion !== generatingToolVersion && _RuntimeMetaData.getMajorMinorVersion(runtimeVersion) !== _RuntimeMetaData.getMajorMinorVersion(generatingToolVersion);
    runtimeConflictsWithCompileTimeTool = runtimeVersion !== compileTimeVersion && _RuntimeMetaData.getMajorMinorVersion(runtimeVersion) !== _RuntimeMetaData.getMajorMinorVersion(compileTimeVersion);
    if (runtimeConflictsWithGeneratingTool) {
      console.error(`ANTLR Tool version ${generatingToolVersion} used for code generation does not match the current runtime version ${runtimeVersion}`);
    }
    if (runtimeConflictsWithCompileTimeTool) {
      console.error(`ANTLR Runtime version ${compileTimeVersion} used for parser compilation does not match the current runtime version ${runtimeVersion}`);
    }
  }
  /**
   * Gets the major and minor version numbers from a version string. For
   * details about the syntax of the input `version`.
   * E.g., from x.y.z return x.y.
   *
   * @param version The complete version string.
   * @returns A string of the form *major*.*minor* containing
   * only the major and minor components of the version string.
   */
  static getMajorMinorVersion(version) {
    const firstDot = version.indexOf(".");
    const secondDot = firstDot >= 0 ? version.indexOf(".", firstDot + 1) : -1;
    const firstDash = version.indexOf("-");
    let referenceLength = version.length;
    if (secondDot >= 0) {
      referenceLength = Math.min(referenceLength, secondDot);
    }
    if (firstDash >= 0) {
      referenceLength = Math.min(referenceLength, firstDash);
    }
    return version.substring(0, referenceLength);
  }
};

// src/TokenStreamRewriter.ts
var TokenStreamRewriter = class _TokenStreamRewriter {
  static {
    __name(this, "TokenStreamRewriter");
  }
  static DEFAULT_PROGRAM_NAME = "default";
  static PROGRAM_INIT_SIZE = 100;
  static MIN_TOKEN_INDEX = 0;
  /** Our source stream */
  tokens;
  /**
   * You may have multiple, named streams of rewrite operations.
   *  I'm calling these things "programs."
   *  Maps String (name) -> rewrite (List)
   */
  programs = /* @__PURE__ */ new Map();
  /** Map String (program name) -> Integer index */
  lastRewriteTokenIndexes;
  /**
   * @param tokens The token stream to modify
   */
  constructor(tokens) {
    this.tokens = tokens;
  }
  getTokenStream() {
    return this.tokens;
  }
  /**
   * Insert the supplied text after the specified token (or token index)
   */
  insertAfter(tokenOrIndex, text, programName = _TokenStreamRewriter.DEFAULT_PROGRAM_NAME) {
    let index;
    if (typeof tokenOrIndex === "number") {
      index = tokenOrIndex;
    } else {
      index = tokenOrIndex.tokenIndex;
    }
    const rewrites = this.getProgram(programName);
    const op = new InsertAfterOp(this.tokens, index, rewrites.length, text);
    rewrites.push(op);
  }
  /**
   * Insert the supplied text before the specified token (or token index)
   */
  insertBefore(tokenOrIndex, text, programName = _TokenStreamRewriter.DEFAULT_PROGRAM_NAME) {
    let index;
    if (typeof tokenOrIndex === "number") {
      index = tokenOrIndex;
    } else {
      index = tokenOrIndex.tokenIndex;
    }
    const rewrites = this.getProgram(programName);
    const op = new InsertBeforeOp(this.tokens, index, rewrites.length, text);
    rewrites.push(op);
  }
  /**
   * Replace the specified token with the supplied text
   */
  replaceSingle(tokenOrIndex, text, programName = _TokenStreamRewriter.DEFAULT_PROGRAM_NAME) {
    this.replace(tokenOrIndex, tokenOrIndex, text, programName);
  }
  /**
   * Replace the specified range of tokens with the supplied text.
   */
  replace(from, to, text, programName = _TokenStreamRewriter.DEFAULT_PROGRAM_NAME) {
    if (typeof from !== "number") {
      from = from.tokenIndex;
    }
    if (typeof to !== "number") {
      to = to.tokenIndex;
    }
    if (from > to || from < 0 || to < 0 || to >= this.tokens.size) {
      throw new RangeError(`replace: range invalid: ${from}..${to}(size=${this.tokens.size})`);
    }
    const rewrites = this.getProgram(programName);
    const op = new ReplaceOp(this.tokens, from, to, rewrites.length, text);
    rewrites.push(op);
  }
  /**
   * Delete the specified range of tokens
   */
  delete(from, to, programName = _TokenStreamRewriter.DEFAULT_PROGRAM_NAME) {
    if (to == null) {
      to = from;
    }
    this.replace(from, to, null, programName);
  }
  getProgram(name) {
    let is = this.programs.get(name);
    if (is == null) {
      is = this.initializeProgram(name);
    }
    return is;
  }
  initializeProgram(name) {
    const is = [];
    this.programs.set(name, is);
    return is;
  }
  /**
   * @returns the text from the original tokens altered per the instructions given to this rewriter
   */
  getText(intervalOrProgram, programName = _TokenStreamRewriter.DEFAULT_PROGRAM_NAME) {
    let interval;
    if (intervalOrProgram instanceof Interval) {
      interval = intervalOrProgram;
    } else {
      interval = new Interval(0, this.tokens.size - 1);
    }
    if (typeof intervalOrProgram === "string") {
      programName = intervalOrProgram;
    }
    const rewrites = this.programs.get(programName);
    let start = interval.start;
    let stop = interval.stop;
    if (stop > this.tokens.size - 1) {
      stop = this.tokens.size - 1;
    }
    if (start < 0) {
      start = 0;
    }
    if (rewrites == null || rewrites.length === 0) {
      return this.tokens.getTextFromInterval(new Interval(start, stop));
    }
    const buf = [];
    const indexToOp = this.reduceToSingleOperationPerIndex(rewrites);
    let i = start;
    while (i <= stop && i < this.tokens.size) {
      const op = indexToOp.get(i);
      indexToOp.delete(i);
      const t = this.tokens.get(i);
      if (op == null) {
        if (t.type !== Token.EOF) {
          buf.push(String(t.text));
        }
        i++;
      } else {
        i = op.execute(buf);
      }
    }
    if (stop === this.tokens.size - 1) {
      for (const op of indexToOp.values()) {
        if (op && op.index >= this.tokens.size - 1) {
          buf.push(String(op.text));
        }
      }
    }
    return buf.join("");
  }
  /**
   * @returns a map from token index to operation
   */
  reduceToSingleOperationPerIndex(rewrites) {
    for (let i = 0; i < rewrites.length; i++) {
      const op = rewrites[i];
      if (op == null) {
        continue;
      }
      if (!(op instanceof ReplaceOp)) {
        continue;
      }
      const rop = op;
      const inserts = this.getKindOfOps(rewrites, InsertBeforeOp, i);
      for (const iop of inserts) {
        if (iop.index === rop.index) {
          rewrites[iop.instructionIndex] = null;
          rop.text = String(iop.text) + (rop.text != null ? rop.text.toString() : "");
        } else if (iop.index > rop.index && iop.index <= rop.lastIndex) {
          rewrites[iop.instructionIndex] = null;
        }
      }
      const prevReplaces = this.getKindOfOps(rewrites, ReplaceOp, i);
      for (const prevRop of prevReplaces) {
        if (prevRop.index >= rop.index && prevRop.lastIndex <= rop.lastIndex) {
          rewrites[prevRop.instructionIndex] = null;
          continue;
        }
        const disjoint = prevRop.lastIndex < rop.index || prevRop.index > rop.lastIndex;
        if (prevRop.text == null && rop.text == null && !disjoint) {
          rewrites[prevRop.instructionIndex] = null;
          rop.index = Math.min(prevRop.index, rop.index);
          rop.lastIndex = Math.max(prevRop.lastIndex, rop.lastIndex);
        } else if (!disjoint) {
          throw new Error(`replace op boundaries of ${rop} overlap with previous ${prevRop}`);
        }
      }
    }
    for (let i = 0; i < rewrites.length; i++) {
      const op = rewrites[i];
      if (op == null) {
        continue;
      }
      if (!(op instanceof InsertBeforeOp)) {
        continue;
      }
      const iop = op;
      const prevInserts = this.getKindOfOps(rewrites, InsertBeforeOp, i);
      for (const prevIop of prevInserts) {
        if (prevIop.index === iop.index) {
          if (prevIop instanceof InsertAfterOp) {
            iop.text = this.catOpText(prevIop.text, iop.text);
            rewrites[prevIop.instructionIndex] = null;
          } else if (prevIop instanceof InsertBeforeOp) {
            iop.text = this.catOpText(iop.text, prevIop.text);
            rewrites[prevIop.instructionIndex] = null;
          }
        }
      }
      const prevReplaces = this.getKindOfOps(rewrites, ReplaceOp, i);
      for (const rop of prevReplaces) {
        if (iop.index === rop.index) {
          rop.text = this.catOpText(iop.text, rop.text);
          rewrites[i] = null;
          continue;
        }
        if (iop.index >= rop.index && iop.index <= rop.lastIndex) {
          throw new Error(`insert op ${iop} within boundaries of previous ${rop}`);
        }
      }
    }
    const m2 = /* @__PURE__ */ new Map();
    for (const op of rewrites) {
      if (op == null) {
        continue;
      }
      if (m2.get(op.index) != null) {
        throw new Error("should only be one op per index");
      }
      m2.set(op.index, op);
    }
    return m2;
  }
  catOpText(a, b) {
    let x = "";
    let y = "";
    if (a != null) {
      x = a.toString();
    }
    if (b != null) {
      y = b.toString();
    }
    return x + y;
  }
  /**
   * Get all operations before an index of a particular kind
   */
  getKindOfOps(rewrites, kind, before) {
    return rewrites.slice(0, before).filter((op) => {
      return op && op instanceof kind;
    });
  }
};
var RewriteOperation = class {
  static {
    __name(this, "RewriteOperation");
  }
  /** What index into rewrites List are we? */
  instructionIndex;
  /** Token buffer index. */
  index;
  text;
  tokens;
  constructor(tokens, index, instructionIndex, text) {
    this.tokens = tokens;
    this.instructionIndex = instructionIndex;
    this.index = index;
    this.text = text === void 0 ? "" : text;
  }
  execute(_buf) {
    return this.index;
  }
  toString() {
    return "<RewriteOperation@" + this.tokens.get(this.index) + ':"' + this.text + '">';
  }
};
var InsertBeforeOp = class extends RewriteOperation {
  static {
    __name(this, "InsertBeforeOp");
  }
  constructor(tokens, index, instructionIndex, text) {
    super(tokens, index, instructionIndex, text);
  }
  /**
   * @returns the index of the next token to operate on
   */
  execute(buf) {
    if (this.text) {
      buf.push(this.text.toString());
    }
    if (this.tokens.get(this.index).type !== Token.EOF) {
      buf.push(String(this.tokens.get(this.index).text));
    }
    return this.index + 1;
  }
  toString() {
    return "<InsertBeforeOp@" + this.tokens.get(this.index) + ':"' + this.text + '">';
  }
};
var InsertAfterOp = class extends InsertBeforeOp {
  static {
    __name(this, "InsertAfterOp");
  }
  constructor(tokens, index, instructionIndex, text) {
    super(tokens, index + 1, instructionIndex, text);
  }
  toString() {
    return "<InsertAfterOp@" + this.tokens.get(this.index) + ':"' + this.text + '">';
  }
};
var ReplaceOp = class extends RewriteOperation {
  static {
    __name(this, "ReplaceOp");
  }
  lastIndex;
  constructor(tokens, from, to, instructionIndex, text) {
    super(tokens, from, instructionIndex, text);
    this.lastIndex = to;
  }
  /**
   * @returns the index of the next token to operate on
   */
  execute(buf) {
    if (this.text) {
      buf.push(this.text.toString());
    }
    return this.lastIndex + 1;
  }
  toString() {
    if (this.text == null) {
      return "<DeleteOp@" + this.tokens.get(this.index) + ".." + this.tokens.get(this.lastIndex) + ">";
    }
    return "<ReplaceOp@" + this.tokens.get(this.index) + ".." + this.tokens.get(this.lastIndex) + ':"' + this.text + '">';
  }
};

// src/WritableToken.ts
var isWritableToken = /* @__PURE__ */ __name((candidate) => {
  return candidate.setText !== void 0;
}, "isWritableToken");

// src/UnbufferedTokenStream.ts
var UnbufferedTokenStream = class {
  static {
    __name(this, "UnbufferedTokenStream");
  }
  tokenSource;
  /**
   * A moving window buffer of the data being scanned. While there's a marker,
   * we keep adding to buffer. Otherwise, {@link #consume consume()} resets so
   * we start filling at index 0 again.
   */
  tokens;
  /**
   * The number of tokens currently in {@link #tokens tokens}.
   *
   * This is not the buffer capacity, that's `tokens.length`.
   */
  n;
  /**
   * 0..n-1 index into {@link #tokens tokens} of next token.
   *
   * The `LT(1)` token is `tokens[p]`. If `p == n`, we are
   * out of buffered tokens.
   */
  p = 0;
  /**
   * Count up with {@link #mark mark()} and down with
   * {@link #release release()}. When we `release()` the last mark,
   * `numMarkers` reaches 0 and we reset the buffer. Copy
   * `tokens[p]..tokens[n-1]` to `tokens[0]..tokens[(n-1)-p]`.
   */
  numMarkers = 0;
  /**
   * This is the `LT(-1)` token for the current position.
   */
  lastToken;
  /**
   * When `numMarkers > 0`, this is the `LT(-1)` token for the
   * first token in {@link #tokens}. Otherwise, this is `null`.
   */
  lastTokenBufferStart;
  /**
   * Absolute token index. It's the index of the token about to be read via
   * `LT(1)`. Goes from 0 to the number of tokens in the entire stream,
   * although the stream size is unknown before the end is reached.
   *
   * This value is used to set the token indexes if the stream provides tokens
   * that implement {@link WritableToken}.
   */
  currentTokenIndex = 0;
  constructor(tokenSource, bufferSize) {
    this.tokenSource = tokenSource;
    bufferSize = bufferSize ?? 256;
    this.tokens = new Array(bufferSize);
    this.n = 0;
    this.fill(1);
  }
  get(i) {
    const bufferStartIndex = this.getBufferStartIndex();
    if (i < bufferStartIndex || i >= bufferStartIndex + this.n) {
      throw new Error("get(" + i + ") outside buffer: " + bufferStartIndex + ".." + (bufferStartIndex + this.n));
    }
    return this.tokens[i - bufferStartIndex];
  }
  // eslint-disable-next-line @typescript-eslint/naming-convention
  LT(i) {
    if (i === -1) {
      return this.lastToken;
    }
    this.sync(i);
    const index = this.p + i - 1;
    if (index < 0) {
      throw new Error("LT(" + i + ") gives negative index");
    }
    if (index >= this.n) {
      return this.tokens[this.n - 1];
    }
    return this.tokens[index];
  }
  // eslint-disable-next-line @typescript-eslint/naming-convention
  LA(i) {
    return this.LT(i).type;
  }
  getText() {
    return "";
  }
  getTextFromContext(ctx) {
    return this.getTextFromInterval(ctx.getSourceInterval());
  }
  getTextFromInterval(interval) {
    const bufferStartIndex = this.getBufferStartIndex();
    const bufferStopIndex = bufferStartIndex + this.tokens.length - 1;
    const start = interval.start;
    const stop = interval.stop;
    if (start < bufferStartIndex || stop > bufferStopIndex) {
      throw new Error("interval " + interval + " not in token buffer window: " + bufferStartIndex + ".." + bufferStopIndex);
    }
    const a = start - bufferStartIndex;
    const b = stop - bufferStartIndex;
    let result = "";
    for (let i = a; i <= b; i++) {
      const t = this.tokens[i];
      result += t.text;
    }
    return result;
  }
  getTextFromRange(start, stop) {
    return this.getTextFromInterval(Interval.of(start.tokenIndex, stop.tokenIndex));
  }
  consume() {
    if (this.LA(1) === Token.EOF) {
      throw new Error("cannot consume EOF");
    }
    this.lastToken = this.tokens[this.p];
    if (this.p === this.n - 1 && this.numMarkers === 0) {
      this.n = 0;
      this.p = -1;
      this.lastTokenBufferStart = this.lastToken;
    }
    this.p++;
    this.currentTokenIndex++;
    this.sync(1);
  }
  /**
   * Return a marker that we can release later.
   *
   * The specific marker value used for this class allows for some level of
   * protection against misuse where `seek()` is called on a mark or
   * `release()` is called in the wrong order.
   */
  mark() {
    if (this.numMarkers === 0) {
      this.lastTokenBufferStart = this.lastToken;
    }
    const mark = -this.numMarkers - 1;
    this.numMarkers++;
    return mark;
  }
  release(marker) {
    const expectedMark = -this.numMarkers;
    if (marker !== expectedMark) {
      throw new Error("release() called with an invalid marker.");
    }
    this.numMarkers--;
    if (this.numMarkers === 0) {
      if (this.p > 0) {
        this.tokens.copyWithin(0, this.p, this.n);
        this.n = this.n - this.p;
        this.p = 0;
      }
      this.lastTokenBufferStart = this.lastToken;
    }
  }
  get index() {
    return this.currentTokenIndex;
  }
  seek(index) {
    if (index === this.currentTokenIndex) {
      return;
    }
    if (index > this.currentTokenIndex) {
      this.sync(index - this.currentTokenIndex);
      index = Math.min(index, this.getBufferStartIndex() + this.n - 1);
    }
    const bufferStartIndex = this.getBufferStartIndex();
    const i = index - bufferStartIndex;
    if (i < 0) {
      throw new Error("cannot seek to negative index " + index);
    } else {
      if (i >= this.n) {
        throw new Error("seek to index outside buffer: " + index + " not in " + bufferStartIndex + ".." + (bufferStartIndex + this.n));
      }
    }
    this.p = i;
    this.currentTokenIndex = index;
    if (this.p === 0) {
      this.lastToken = this.lastTokenBufferStart;
    } else {
      this.lastToken = this.tokens[this.p - 1];
    }
  }
  get size() {
    throw new Error("Unbuffered stream cannot know its size");
  }
  getSourceName() {
    return this.tokenSource.sourceName;
  }
  /**
   * Make sure we have 'need' elements from current position {@link #p p}. Last valid
   * `p` index is `tokens.length-1`.  `p+need-1` is the tokens index 'need' elements
   * ahead.  If we need 1 element, `(p+1-1)==p` must be less than `tokens.length`.
   */
  sync(want) {
    const need = this.p + want - 1 - this.n + 1;
    if (need > 0) {
      this.fill(need);
    }
  }
  /**
   * Add `n` elements to the buffer. Returns the number of tokens
   * actually added to the buffer. If the return value is less than `n`,
   * then EOF was reached before `n` tokens could be added.
   */
  fill(n2) {
    for (let i = 0; i < n2; i++) {
      if (this.n > 0 && this.tokens[this.n - 1].type === Token.EOF) {
        return i;
      }
      const t = this.tokenSource.nextToken();
      this.add(t);
    }
    return n2;
  }
  add(t) {
    if (this.n >= this.tokens.length) {
      this.tokens.length = this.tokens.length * 2;
    }
    if (isWritableToken(t)) {
      t.setTokenIndex(this.getBufferStartIndex() + this.n);
    }
    this.tokens[this.n++] = t;
  }
  getBufferStartIndex() {
    return this.currentTokenIndex - this.p;
  }
};