@angular/compiler
Version:
Angular - the compiler library
215 lines • 26.7 kB
JavaScript
/**
* @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 (token instanceof Array) {
return '[' + token.map(stringify).join(', ') + ']';
}
if (token == null) {
return '' + token;
}
if (token.overriddenName) {
return "" + token.overriddenName;
}
if (token.name) {
return "" + token.name;
}
// 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;
});
//# 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* @license\n * Copyright Google Inc. 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 => { result[key] = visitValue(map[key], this, context); });\n    return result;\n  }\n  visitPrimitive(value: any, context: any): any { return value; }\n  visitOther(value: any, context: any): any { return value; }\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> => { return isPromise(value) ? value.then(cb) : cb(value);},\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 (token instanceof Array) {\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  // 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(obj: any): obj is Promise<any> {\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"]}