@angular/compiler/src/util.js

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define("@angular/compiler/src/util", ["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var DASH_CASE_REGEXP = /-+([a-z0-9])/g;
    function dashCaseToCamelCase(input) {
        return input.replace(DASH_CASE_REGEXP, function () {
            var m = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                m[_i] = arguments[_i];
            }
            return m[1].toUpperCase();
        });
    }
    exports.dashCaseToCamelCase = dashCaseToCamelCase;
    function splitAtColon(input, defaultValues) {
        return _splitAt(input, ':', defaultValues);
    }
    exports.splitAtColon = splitAtColon;
    function splitAtPeriod(input, defaultValues) {
        return _splitAt(input, '.', defaultValues);
    }
    exports.splitAtPeriod = splitAtPeriod;
    function _splitAt(input, character, defaultValues) {
        var characterIndex = input.indexOf(character);
        if (characterIndex == -1)
            return defaultValues;
        return [input.slice(0, characterIndex).trim(), input.slice(characterIndex + 1).trim()];
    }
    function visitValue(value, visitor, context) {
        if (Array.isArray(value)) {
            return visitor.visitArray(value, context);
        }
        if (isStrictStringMap(value)) {
            return visitor.visitStringMap(value, context);
        }
        if (value == null || typeof value == 'string' || typeof value == 'number' ||
            typeof value == 'boolean') {
            return visitor.visitPrimitive(value, context);
        }
        return visitor.visitOther(value, context);
    }
    exports.visitValue = visitValue;
    function isDefined(val) {
        return val !== null && val !== undefined;
    }
    exports.isDefined = isDefined;
    function noUndefined(val) {
        return val === undefined ? null : val;
    }
    exports.noUndefined = noUndefined;
    var ValueTransformer = /** @class */ (function () {
        function ValueTransformer() {
        }
        ValueTransformer.prototype.visitArray = function (arr, context) {
            var _this = this;
            return arr.map(function (value) { return visitValue(value, _this, context); });
        };
        ValueTransformer.prototype.visitStringMap = function (map, context) {
            var _this = this;
            var result = {};
            Object.keys(map).forEach(function (key) {
                result[key] = visitValue(map[key], _this, context);
            });
            return result;
        };
        ValueTransformer.prototype.visitPrimitive = function (value, context) {
            return value;
        };
        ValueTransformer.prototype.visitOther = function (value, context) {
            return value;
        };
        return ValueTransformer;
    }());
    exports.ValueTransformer = ValueTransformer;
    exports.SyncAsync = {
        assertSync: function (value) {
            if (isPromise(value)) {
                throw new Error("Illegal state: value cannot be a promise");
            }
            return value;
        },
        then: function (value, cb) {
            return isPromise(value) ? value.then(cb) : cb(value);
        },
        all: function (syncAsyncValues) {
            return syncAsyncValues.some(isPromise) ? Promise.all(syncAsyncValues) : syncAsyncValues;
        }
    };
    function error(msg) {
        throw new Error("Internal Error: " + msg);
    }
    exports.error = error;
    function syntaxError(msg, parseErrors) {
        var error = Error(msg);
        error[ERROR_SYNTAX_ERROR] = true;
        if (parseErrors)
            error[ERROR_PARSE_ERRORS] = parseErrors;
        return error;
    }
    exports.syntaxError = syntaxError;
    var ERROR_SYNTAX_ERROR = 'ngSyntaxError';
    var ERROR_PARSE_ERRORS = 'ngParseErrors';
    function isSyntaxError(error) {
        return error[ERROR_SYNTAX_ERROR];
    }
    exports.isSyntaxError = isSyntaxError;
    function getParseErrors(error) {
        return error[ERROR_PARSE_ERRORS] || [];
    }
    exports.getParseErrors = getParseErrors;
    // Escape characters that have a special meaning in Regular Expressions
    function escapeRegExp(s) {
        return s.replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
    }
    exports.escapeRegExp = escapeRegExp;
    var STRING_MAP_PROTO = Object.getPrototypeOf({});
    function isStrictStringMap(obj) {
        return typeof obj === 'object' && obj !== null && Object.getPrototypeOf(obj) === STRING_MAP_PROTO;
    }
    function utf8Encode(str) {
        var encoded = '';
        for (var index = 0; index < str.length; index++) {
            var codePoint = str.charCodeAt(index);
            // decode surrogate
            // see https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
            if (codePoint >= 0xd800 && codePoint <= 0xdbff && str.length > (index + 1)) {
                var low = str.charCodeAt(index + 1);
                if (low >= 0xdc00 && low <= 0xdfff) {
                    index++;
                    codePoint = ((codePoint - 0xd800) << 10) + low - 0xdc00 + 0x10000;
                }
            }
            if (codePoint <= 0x7f) {
                encoded += String.fromCharCode(codePoint);
            }
            else if (codePoint <= 0x7ff) {
                encoded += String.fromCharCode(((codePoint >> 6) & 0x1F) | 0xc0, (codePoint & 0x3f) | 0x80);
            }
            else if (codePoint <= 0xffff) {
                encoded += String.fromCharCode((codePoint >> 12) | 0xe0, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);
            }
            else if (codePoint <= 0x1fffff) {
                encoded += String.fromCharCode(((codePoint >> 18) & 0x07) | 0xf0, ((codePoint >> 12) & 0x3f) | 0x80, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);
            }
        }
        return encoded;
    }
    exports.utf8Encode = utf8Encode;
    function stringify(token) {
        if (typeof token === 'string') {
            return token;
        }
        if (Array.isArray(token)) {
            return '[' + token.map(stringify).join(', ') + ']';
        }
        if (token == null) {
            return '' + token;
        }
        if (token.overriddenName) {
            return "" + token.overriddenName;
        }
        if (token.name) {
            return "" + token.name;
        }
        if (!token.toString) {
            return 'object';
        }
        // WARNING: do not try to `JSON.stringify(token)` here
        // see https://github.com/angular/angular/issues/23440
        var res = token.toString();
        if (res == null) {
            return '' + res;
        }
        var newLineIndex = res.indexOf('\n');
        return newLineIndex === -1 ? res : res.substring(0, newLineIndex);
    }
    exports.stringify = stringify;
    /**
     * Lazily retrieves the reference value from a forwardRef.
     */
    function resolveForwardRef(type) {
        if (typeof type === 'function' && type.hasOwnProperty('__forward_ref__')) {
            return type();
        }
        else {
            return type;
        }
    }
    exports.resolveForwardRef = resolveForwardRef;
    /**
     * Determine if the argument is shaped like a Promise
     */
    function isPromise(obj) {
        // allow any Promise/A+ compliant thenable.
        // It's up to the caller to ensure that obj.then conforms to the spec
        return !!obj && typeof obj.then === 'function';
    }
    exports.isPromise = isPromise;
    var Version = /** @class */ (function () {
        function Version(full) {
            this.full = full;
            var splits = full.split('.');
            this.major = splits[0];
            this.minor = splits[1];
            this.patch = splits.slice(2).join('.');
        }
        return Version;
    }());
    exports.Version = Version;
    var __window = typeof window !== 'undefined' && window;
    var __self = typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' &&
        self instanceof WorkerGlobalScope && self;
    var __global = typeof global !== 'undefined' && global;
    // Check __global first, because in Node tests both __global and __window may be defined and _global
    // should be __global in that case.
    var _global = __global || __window || __self;
    exports.global = _global;
    function newArray(size, value) {
        var list = [];
        for (var i = 0; i < size; i++) {
            list.push(value);
        }
        return list;
    }
    exports.newArray = newArray;
    /**
     * Partitions a given array into 2 arrays, based on a boolean value returned by the condition
     * function.
     *
     * @param arr Input array that should be partitioned
     * @param conditionFn Condition function that is called for each item in a given array and returns a
     * boolean value.
     */
    function partitionArray(arr, conditionFn) {
        var truthy = [];
        var falsy = [];
        arr.forEach(function (item) {
            (conditionFn(item) ? truthy : falsy).push(item);
        });
        return [truthy, falsy];
    }
    exports.partitionArray = partitionArray;
});
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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ConstantPool} from './constant_pool';\n\nimport * as o from './output/output_ast';\nimport {ParseError} from './parse_util';\n\nconst DASH_CASE_REGEXP = /-+([a-z0-9])/g;\n\nexport function dashCaseToCamelCase(input: string): string {\n  return input.replace(DASH_CASE_REGEXP, (...m: any[]) => m[1].toUpperCase());\n}\n\nexport function splitAtColon(input: string, defaultValues: string[]): string[] {\n  return _splitAt(input, ':', defaultValues);\n}\n\nexport function splitAtPeriod(input: string, defaultValues: string[]): string[] {\n  return _splitAt(input, '.', defaultValues);\n}\n\nfunction _splitAt(input: string, character: string, defaultValues: string[]): string[] {\n  const characterIndex = input.indexOf(character);\n  if (characterIndex == -1) return defaultValues;\n  return [input.slice(0, characterIndex).trim(), input.slice(characterIndex + 1).trim()];\n}\n\nexport function visitValue(value: any, visitor: ValueVisitor, context: any): any {\n  if (Array.isArray(value)) {\n    return visitor.visitArray(<any[]>value, context);\n  }\n\n  if (isStrictStringMap(value)) {\n    return visitor.visitStringMap(<{[key: string]: any}>value, context);\n  }\n\n  if (value == null || typeof value == 'string' || typeof value == 'number' ||\n      typeof value == 'boolean') {\n    return visitor.visitPrimitive(value, context);\n  }\n\n  return visitor.visitOther(value, context);\n}\n\nexport function isDefined(val: any): boolean {\n  return val !== null && val !== undefined;\n}\n\nexport function noUndefined<T>(val: T|undefined): T {\n  return val === undefined ? null! : val;\n}\n\nexport interface ValueVisitor {\n  visitArray(arr: any[], context: any): any;\n  visitStringMap(map: {[key: string]: any}, context: any): any;\n  visitPrimitive(value: any, context: any): any;\n  visitOther(value: any, context: any): any;\n}\n\nexport class ValueTransformer implements ValueVisitor {\n  visitArray(arr: any[], context: any): any {\n    return arr.map(value => visitValue(value, this, context));\n  }\n  visitStringMap(map: {[key: string]: any}, context: any): any {\n    const result: {[key: string]: any} = {};\n    Object.keys(map).forEach(key => {\n      result[key] = visitValue(map[key], this, context);\n    });\n    return result;\n  }\n  visitPrimitive(value: any, context: any): any {\n    return value;\n  }\n  visitOther(value: any, context: any): any {\n    return value;\n  }\n}\n\nexport type SyncAsync<T> = T|Promise<T>;\n\nexport const SyncAsync = {\n  assertSync: <T>(value: SyncAsync<T>): T => {\n    if (isPromise(value)) {\n      throw new Error(`Illegal state: value cannot be a promise`);\n    }\n    return value;\n  },\n  then: <T, R>(value: SyncAsync<T>, cb: (value: T) => R | Promise<R>| SyncAsync<R>):\n      SyncAsync<R> => {\n        return isPromise(value) ? value.then(cb) : cb(value);\n      },\n  all: <T>(syncAsyncValues: SyncAsync<T>[]): SyncAsync<T[]> => {\n    return syncAsyncValues.some(isPromise) ? Promise.all(syncAsyncValues) : syncAsyncValues as T[];\n  }\n};\n\nexport function error(msg: string): never {\n  throw new Error(`Internal Error: ${msg}`);\n}\n\nexport function syntaxError(msg: string, parseErrors?: ParseError[]): Error {\n  const error = Error(msg);\n  (error as any)[ERROR_SYNTAX_ERROR] = true;\n  if (parseErrors) (error as any)[ERROR_PARSE_ERRORS] = parseErrors;\n  return error;\n}\n\nconst ERROR_SYNTAX_ERROR = 'ngSyntaxError';\nconst ERROR_PARSE_ERRORS = 'ngParseErrors';\n\nexport function isSyntaxError(error: Error): boolean {\n  return (error as any)[ERROR_SYNTAX_ERROR];\n}\n\nexport function getParseErrors(error: Error): ParseError[] {\n  return (error as any)[ERROR_PARSE_ERRORS] || [];\n}\n\n// Escape characters that have a special meaning in Regular Expressions\nexport function escapeRegExp(s: string): string {\n  return s.replace(/([.*+?^=!:${}()|[\\]\\/\\\\])/g, '\\\\$1');\n}\n\nconst STRING_MAP_PROTO = Object.getPrototypeOf({});\nfunction isStrictStringMap(obj: any): boolean {\n  return typeof obj === 'object' && obj !== null && Object.getPrototypeOf(obj) === STRING_MAP_PROTO;\n}\n\nexport function utf8Encode(str: string): string {\n  let encoded = '';\n  for (let index = 0; index < str.length; index++) {\n    let codePoint = str.charCodeAt(index);\n\n    // decode surrogate\n    // see https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae\n    if (codePoint >= 0xd800 && codePoint <= 0xdbff && str.length > (index + 1)) {\n      const low = str.charCodeAt(index + 1);\n      if (low >= 0xdc00 && low <= 0xdfff) {\n        index++;\n        codePoint = ((codePoint - 0xd800) << 10) + low - 0xdc00 + 0x10000;\n      }\n    }\n\n    if (codePoint <= 0x7f) {\n      encoded += String.fromCharCode(codePoint);\n    } else if (codePoint <= 0x7ff) {\n      encoded += String.fromCharCode(((codePoint >> 6) & 0x1F) | 0xc0, (codePoint & 0x3f) | 0x80);\n    } else if (codePoint <= 0xffff) {\n      encoded += String.fromCharCode(\n          (codePoint >> 12) | 0xe0, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);\n    } else if (codePoint <= 0x1fffff) {\n      encoded += String.fromCharCode(\n          ((codePoint >> 18) & 0x07) | 0xf0, ((codePoint >> 12) & 0x3f) | 0x80,\n          ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);\n    }\n  }\n\n  return encoded;\n}\n\nexport interface OutputContext {\n  genFilePath: string;\n  statements: o.Statement[];\n  constantPool: ConstantPool;\n  importExpr(reference: any, typeParams?: o.Type[]|null, useSummaries?: boolean): o.Expression;\n}\n\nexport function stringify(token: any): string {\n  if (typeof token === 'string') {\n    return token;\n  }\n\n  if (Array.isArray(token)) {\n    return '[' + token.map(stringify).join(', ') + ']';\n  }\n\n  if (token == null) {\n    return '' + token;\n  }\n\n  if (token.overriddenName) {\n    return `${token.overriddenName}`;\n  }\n\n  if (token.name) {\n    return `${token.name}`;\n  }\n\n  if (!token.toString) {\n    return 'object';\n  }\n\n  // WARNING: do not try to `JSON.stringify(token)` here\n  // see https://github.com/angular/angular/issues/23440\n  const res = token.toString();\n\n  if (res == null) {\n    return '' + res;\n  }\n\n  const newLineIndex = res.indexOf('\\n');\n  return newLineIndex === -1 ? res : res.substring(0, newLineIndex);\n}\n\n/**\n * Lazily retrieves the reference value from a forwardRef.\n */\nexport function resolveForwardRef(type: any): any {\n  if (typeof type === 'function' && type.hasOwnProperty('__forward_ref__')) {\n    return type();\n  } else {\n    return type;\n  }\n}\n\n/**\n * Determine if the argument is shaped like a Promise\n */\nexport function isPromise<T = any>(obj: any): obj is Promise<T> {\n  // allow any Promise/A+ compliant thenable.\n  // It's up to the caller to ensure that obj.then conforms to the spec\n  return !!obj && typeof obj.then === 'function';\n}\n\nexport class Version {\n  public readonly major: string;\n  public readonly minor: string;\n  public readonly patch: string;\n\n  constructor(public full: string) {\n    const splits = full.split('.');\n    this.major = splits[0];\n    this.minor = splits[1];\n    this.patch = splits.slice(2).join('.');\n  }\n}\n\nexport interface Console {\n  log(message: string): void;\n  warn(message: string): void;\n}\n\n\ndeclare var WorkerGlobalScope: any;\n// CommonJS / Node have global context exposed as \"global\" variable.\n// We don't want to include the whole node.d.ts this this compilation unit so we'll just fake\n// the global \"global\" var for now.\ndeclare var global: any;\nconst __window = typeof window !== 'undefined' && window;\nconst __self = typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' &&\n    self instanceof WorkerGlobalScope && self;\nconst __global = typeof global !== 'undefined' && global;\n\n// Check __global first, because in Node tests both __global and __window may be defined and _global\n// should be __global in that case.\nconst _global: {[name: string]: any} = __global || __window || __self;\nexport {_global as global};\n\nexport function newArray<T = any>(size: number): T[];\nexport function newArray<T>(size: number, value: T): T[];\nexport function newArray<T>(size: number, value?: T): T[] {\n  const list: T[] = [];\n  for (let i = 0; i < size; i++) {\n    list.push(value!);\n  }\n  return list;\n}\n\n/**\n * Partitions a given array into 2 arrays, based on a boolean value returned by the condition\n * function.\n *\n * @param arr Input array that should be partitioned\n * @param conditionFn Condition function that is called for each item in a given array and returns a\n * boolean value.\n */\nexport function partitionArray<T>(\n    arr: T[], conditionFn: <K extends T>(value: K) => boolean): [T[], T[]] {\n  const truthy: T[] = [];\n  const falsy: T[] = [];\n  arr.forEach(item => {\n    (conditionFn(item) ? truthy : falsy).push(item);\n  });\n  return [truthy, falsy];\n}"]}