/*! * Copyright 2016 The ANTLR Project. All rights reserved. * Licensed under the BSD-3-Clause license. See LICENSE file in the project root for license information. */ import { CharStream } from "./CharStream"; import { IntervalSet } from "./misc/IntervalSet"; import { IntStream } from "./IntStream"; import { Lexer } from "./Lexer"; import { ParserRuleContext } from "./ParserRuleContext"; import { Recognizer } from "./Recognizer"; import { RuleContext } from "./RuleContext"; import { Token } from "./Token"; /** The root of the ANTLR exception hierarchy. In general, ANTLR tracks just * 3 kinds of errors: prediction errors, failed predicate errors, and * mismatched input errors. In each case, the parser knows where it is * in the input, where it is in the ATN, the rule invocation stack, * and what kind of problem occurred. */ export declare class RecognitionException extends Error { /** The {@link Recognizer} where this exception originated. */ private _recognizer?; private ctx?; private input?; /** * 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. */ private offendingToken?; private _offendingState; constructor(lexer: Lexer | undefined, input: CharStream); constructor(recognizer: Recognizer | undefined, input: IntStream | undefined, ctx: ParserRuleContext | undefined); constructor(recognizer: Recognizer | undefined, input: IntStream | undefined, ctx: ParserRuleContext | undefined, message: string); /** * 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. * * If the state number is not known, this method returns -1. */ get offendingState(): number; protected setOffendingState(offendingState: number): void; /** * 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 `undefined`. * * @returns The set of token types that could potentially follow the current * state in the ATN, or `undefined` if the information is not available. */ get expectedTokens(): IntervalSet | undefined; /** * Gets the {@link RuleContext} at the time this exception was thrown. * * If the context is not available, this method returns `undefined`. * * @returns The {@link RuleContext} at the time this exception was thrown. * If the context is not available, this method returns `undefined`. */ get context(): RuleContext | undefined; /** * Gets the input stream which is the symbol source for the recognizer where * this exception was thrown. * * If the input stream is not available, this method returns `undefined`. * * @returns The input stream which is the symbol source for the recognizer * where this exception was thrown, or `undefined` if the stream is not * available. */ get inputStream(): IntStream | undefined; getOffendingToken(recognizer?: Recognizer): Token | undefined; protected setOffendingToken(recognizer: Recognizer, offendingToken?: TSymbol): void; /** * Gets the {@link Recognizer} where this exception occurred. * * If the recognizer is not available, this method returns `undefined`. * * @returns The recognizer where this exception occurred, or `undefined` if * the recognizer is not available. */ get recognizer(): Recognizer | undefined; }