@angular/compiler
Version:
Angular - the compiler library
272 lines • 32.8 kB
JavaScript
/**
* @license
* Copyright Google LLC 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", "tslib"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.partitionArray = exports.newArray = exports.global = exports.Version = exports.isPromise = exports.resolveForwardRef = exports.stringify = exports.utf8Encode = exports.escapeRegExp = exports.getParseErrors = exports.isSyntaxError = exports.syntaxError = exports.error = exports.SyncAsync = exports.ValueTransformer = exports.noUndefined = exports.isDefined = exports.visitValue = exports.splitAtPeriod = exports.splitAtColon = exports.dashCaseToCamelCase = void 0;
var tslib_1 = require("tslib");
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.push(codePoint);
}
else if (codePoint <= 0x7ff) {
encoded.push(((codePoint >> 6) & 0x1F) | 0xc0, (codePoint & 0x3f) | 0x80);
}
else if (codePoint <= 0xffff) {
encoded.push((codePoint >> 12) | 0xe0, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);
}
else if (codePoint <= 0x1fffff) {
encoded.push(((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 e_1, _a;
var truthy = [];
var falsy = [];
try {
for (var arr_1 = tslib_1.__values(arr), arr_1_1 = arr_1.next(); !arr_1_1.done; arr_1_1 = arr_1.next()) {
var item = arr_1_1.value;
(conditionFn(item) ? truthy : falsy).push(item);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (arr_1_1 && !arr_1_1.done && (_a = arr_1.return)) _a.call(arr_1);
}
finally { if (e_1) throw e_1.error; }
}
return [truthy, falsy];
}
exports.partitionArray = partitionArray;
});
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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 type Byte = number;\n\nexport function utf8Encode(str: string): Byte[] {\n  let encoded: Byte[] = [];\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.push(codePoint);\n    } else if (codePoint <= 0x7ff) {\n      encoded.push(((codePoint >> 6) & 0x1F) | 0xc0, (codePoint & 0x3f) | 0x80);\n    } else if (codePoint <= 0xffff) {\n      encoded.push(\n          (codePoint >> 12) | 0xe0, ((codePoint >> 6) & 0x3f) | 0x80, (codePoint & 0x3f) | 0x80);\n    } else if (codePoint <= 0x1fffff) {\n      encoded.push(\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, F = T>(\n    arr: (T|F)[], conditionFn: (value: T|F) => boolean): [T[], F[]] {\n  const truthy: T[] = [];\n  const falsy: F[] = [];\n  for (const item of arr) {\n    (conditionFn(item) ? truthy : falsy).push(item as any);\n  }\n  return [truthy, falsy];\n}\n"]}