964 lines
36 KiB
JavaScript
964 lines
36 KiB
JavaScript
/*! *****************************************************************************
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Copyright (C) Microsoft. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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this file except in compliance with the License. You may obtain a copy of the
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License at http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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***************************************************************************** */
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"use strict";
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var Reflect;
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(function (Reflect) {
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// Load global or shim versions of Map, Set, and WeakMap
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var functionPrototype = Object.getPrototypeOf(Function);
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var _Map = typeof Map === "function" ? Map : CreateMapPolyfill();
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var _Set = typeof Set === "function" ? Set : CreateSetPolyfill();
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var _WeakMap = typeof WeakMap === "function" ? WeakMap : CreateWeakMapPolyfill();
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// [[Metadata]] internal slot
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var __Metadata__ = new _WeakMap();
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/**
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* Applies a set of decorators to a property of a target object.
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* @param decorators An array of decorators.
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* @param target The target object.
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* @param targetKey (Optional) The property key to decorate.
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* @param targetDescriptor (Optional) The property descriptor for the target key
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* @remarks Decorators are applied in reverse order.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* C = Reflect.decorate(decoratorsArray, C);
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*
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* // property (on constructor)
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* Reflect.decorate(decoratorsArray, C, "staticProperty");
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*
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* // property (on prototype)
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* Reflect.decorate(decoratorsArray, C.prototype, "property");
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*
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* // method (on constructor)
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* Object.defineProperty(C, "staticMethod",
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* Reflect.decorate(decoratorsArray, C, "staticMethod",
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* Object.getOwnPropertyDescriptor(C, "staticMethod")));
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*
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* // method (on prototype)
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* Object.defineProperty(C.prototype, "method",
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* Reflect.decorate(decoratorsArray, C.prototype, "method",
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* Object.getOwnPropertyDescriptor(C.prototype, "method")));
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*
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*/
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function decorate(decorators, target, targetKey, targetDescriptor) {
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if (!IsUndefined(targetDescriptor)) {
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if (!IsArray(decorators)) {
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throw new TypeError();
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}
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else if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (IsUndefined(targetKey)) {
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throw new TypeError();
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}
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else if (!IsObject(targetDescriptor)) {
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throw new TypeError();
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}
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targetKey = ToPropertyKey(targetKey);
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return DecoratePropertyWithDescriptor(decorators, target, targetKey, targetDescriptor);
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}
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else if (!IsUndefined(targetKey)) {
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if (!IsArray(decorators)) {
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throw new TypeError();
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}
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else if (!IsObject(target)) {
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throw new TypeError();
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}
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targetKey = ToPropertyKey(targetKey);
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return DecoratePropertyWithoutDescriptor(decorators, target, targetKey);
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}
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else {
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if (!IsArray(decorators)) {
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throw new TypeError();
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}
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else if (!IsConstructor(target)) {
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throw new TypeError();
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}
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return DecorateConstructor(decorators, target);
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}
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}
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Reflect.decorate = decorate;
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/**
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* A default metadata decorator factory that can be used on a class, class member, or parameter.
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* @param metadataKey The key for the metadata entry.
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* @param metadataValue The value for the metadata entry.
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* @returns A decorator function.
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* @remarks
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* If `metadataKey` is already defined for the target and target key, the
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* metadataValue for that key will be overwritten.
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* @example
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*
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* // constructor
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* @Reflect.metadata(key, value)
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* class C {
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* }
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*
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* // property (on constructor, TypeScript only)
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* class C {
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* @Reflect.metadata(key, value)
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* static staticProperty;
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* }
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*
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* // property (on prototype, TypeScript only)
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* class C {
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* @Reflect.metadata(key, value)
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* property;
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* }
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*
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* // method (on constructor)
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* class C {
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* @Reflect.metadata(key, value)
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* static staticMethod() { }
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* }
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*
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* // method (on prototype)
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* class C {
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* @Reflect.metadata(key, value)
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* method() { }
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* }
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*
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*/
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function metadata(metadataKey, metadataValue) {
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function decorator(target, targetKey) {
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if (!IsUndefined(targetKey)) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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targetKey = ToPropertyKey(targetKey);
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OrdinaryDefineOwnMetadata(metadataKey, metadataValue, target, targetKey);
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}
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else {
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if (!IsConstructor(target)) {
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throw new TypeError();
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}
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OrdinaryDefineOwnMetadata(metadataKey, metadataValue, target, undefined);
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}
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}
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return decorator;
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}
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Reflect.metadata = metadata;
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/**
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* Define a unique metadata entry on the target.
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* @param metadataKey A key used to store and retrieve metadata.
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* @param metadataValue A value that contains attached metadata.
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* @param target The target object on which to define metadata.
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* @param targetKey (Optional) The property key for the target.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* Reflect.defineMetadata("custom:annotation", options, C);
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*
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* // property (on constructor)
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* Reflect.defineMetadata("custom:annotation", options, C, "staticProperty");
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*
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* // property (on prototype)
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* Reflect.defineMetadata("custom:annotation", options, C.prototype, "property");
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*
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* // method (on constructor)
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* Reflect.defineMetadata("custom:annotation", options, C, "staticMethod");
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*
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* // method (on prototype)
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* Reflect.defineMetadata("custom:annotation", options, C.prototype, "method");
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*
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* // decorator factory as metadata-producing annotation.
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* function MyAnnotation(options): Decorator {
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* return (target, key?) => Reflect.defineMetadata("custom:annotation", options, target, key);
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* }
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*
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*/
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function defineMetadata(metadataKey, metadataValue, target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryDefineOwnMetadata(metadataKey, metadataValue, target, targetKey);
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}
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Reflect.defineMetadata = defineMetadata;
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/**
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* Gets a value indicating whether the target object or its prototype chain has the provided metadata key defined.
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* @param metadataKey A key used to store and retrieve metadata.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns `true` if the metadata key was defined on the target object or its prototype chain; otherwise, `false`.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.hasMetadata("custom:annotation", C);
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*
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* // property (on constructor)
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* result = Reflect.hasMetadata("custom:annotation", C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.hasMetadata("custom:annotation", C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.hasMetadata("custom:annotation", C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.hasMetadata("custom:annotation", C.prototype, "method");
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*
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*/
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function hasMetadata(metadataKey, target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryHasMetadata(metadataKey, target, targetKey);
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}
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Reflect.hasMetadata = hasMetadata;
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/**
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* Gets a value indicating whether the target object has the provided metadata key defined.
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* @param metadataKey A key used to store and retrieve metadata.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns `true` if the metadata key was defined on the target object; otherwise, `false`.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.hasOwnMetadata("custom:annotation", C);
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*
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* // property (on constructor)
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* result = Reflect.hasOwnMetadata("custom:annotation", C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.hasOwnMetadata("custom:annotation", C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.hasOwnMetadata("custom:annotation", C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.hasOwnMetadata("custom:annotation", C.prototype, "method");
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*
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*/
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function hasOwnMetadata(metadataKey, target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryHasOwnMetadata(metadataKey, target, targetKey);
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}
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Reflect.hasOwnMetadata = hasOwnMetadata;
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/**
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* Gets the metadata value for the provided metadata key on the target object or its prototype chain.
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* @param metadataKey A key used to store and retrieve metadata.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns The metadata value for the metadata key if found; otherwise, `undefined`.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.getMetadata("custom:annotation", C);
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*
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* // property (on constructor)
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* result = Reflect.getMetadata("custom:annotation", C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.getMetadata("custom:annotation", C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.getMetadata("custom:annotation", C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.getMetadata("custom:annotation", C.prototype, "method");
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*
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*/
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function getMetadata(metadataKey, target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryGetMetadata(metadataKey, target, targetKey);
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}
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Reflect.getMetadata = getMetadata;
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/**
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* Gets the metadata value for the provided metadata key on the target object.
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* @param metadataKey A key used to store and retrieve metadata.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns The metadata value for the metadata key if found; otherwise, `undefined`.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.getOwnMetadata("custom:annotation", C);
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*
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* // property (on constructor)
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* result = Reflect.getOwnMetadata("custom:annotation", C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.getOwnMetadata("custom:annotation", C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.getOwnMetadata("custom:annotation", C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.getOwnMetadata("custom:annotation", C.prototype, "method");
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*
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*/
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function getOwnMetadata(metadataKey, target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryGetOwnMetadata(metadataKey, target, targetKey);
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}
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Reflect.getOwnMetadata = getOwnMetadata;
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/**
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* Gets the metadata keys defined on the target object or its prototype chain.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns An array of unique metadata keys.
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* @example
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*
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* class C {
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* // property declarations are not part of ES6, though they are valid in TypeScript:
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* // static staticProperty;
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.getMetadataKeys(C);
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*
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* // property (on constructor)
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* result = Reflect.getMetadataKeys(C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.getMetadataKeys(C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.getMetadataKeys(C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.getMetadataKeys(C.prototype, "method");
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*
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*/
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function getMetadataKeys(target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryMetadataKeys(target, targetKey);
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}
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Reflect.getMetadataKeys = getMetadataKeys;
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/**
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* Gets the unique metadata keys defined on the target object.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns An array of unique metadata keys.
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|
* @example
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*
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* class C {
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|
* // property declarations are not part of ES6, though they are valid in TypeScript:
|
|
* // static staticProperty;
|
|
* // property;
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|
*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.getOwnMetadataKeys(C);
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*
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* // property (on constructor)
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* result = Reflect.getOwnMetadataKeys(C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.getOwnMetadataKeys(C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.getOwnMetadataKeys(C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.getOwnMetadataKeys(C.prototype, "method");
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*
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*/
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function getOwnMetadataKeys(target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
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return OrdinaryOwnMetadataKeys(target, targetKey);
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}
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Reflect.getOwnMetadataKeys = getOwnMetadataKeys;
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/**
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* Deletes the metadata entry from the target object with the provided key.
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* @param metadataKey A key used to store and retrieve metadata.
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* @param target The target object on which the metadata is defined.
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* @param targetKey (Optional) The property key for the target.
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* @returns `true` if the metadata entry was found and deleted; otherwise, false.
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* @example
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|
*
|
|
* class C {
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|
* // property declarations are not part of ES6, though they are valid in TypeScript:
|
|
* // static staticProperty;
|
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* // property;
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*
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* constructor(p) { }
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* static staticMethod(p) { }
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* method(p) { }
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* }
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*
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* // constructor
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* result = Reflect.deleteMetadata("custom:annotation", C);
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*
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* // property (on constructor)
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* result = Reflect.deleteMetadata("custom:annotation", C, "staticProperty");
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*
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* // property (on prototype)
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* result = Reflect.deleteMetadata("custom:annotation", C.prototype, "property");
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*
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* // method (on constructor)
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* result = Reflect.deleteMetadata("custom:annotation", C, "staticMethod");
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*
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* // method (on prototype)
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* result = Reflect.deleteMetadata("custom:annotation", C.prototype, "method");
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*
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*/
|
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function deleteMetadata(metadataKey, target, targetKey) {
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if (!IsObject(target)) {
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throw new TypeError();
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}
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else if (!IsUndefined(targetKey)) {
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targetKey = ToPropertyKey(targetKey);
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}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#deletemetadata-metadatakey-p-
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var metadataMap = GetOrCreateMetadataMap(target, targetKey, false);
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if (IsUndefined(metadataMap)) {
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return false;
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}
|
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if (!metadataMap.delete(metadataKey)) {
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return false;
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}
|
|
if (metadataMap.size > 0) {
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return true;
|
|
}
|
|
var targetMetadata = __Metadata__.get(target);
|
|
targetMetadata.delete(targetKey);
|
|
if (targetMetadata.size > 0) {
|
|
return true;
|
|
}
|
|
__Metadata__.delete(target);
|
|
return true;
|
|
}
|
|
Reflect.deleteMetadata = deleteMetadata;
|
|
function DecorateConstructor(decorators, target) {
|
|
for (var i = decorators.length - 1; i >= 0; --i) {
|
|
var decorator = decorators[i];
|
|
var decorated = decorator(target);
|
|
if (!IsUndefined(decorated)) {
|
|
if (!IsConstructor(decorated)) {
|
|
throw new TypeError();
|
|
}
|
|
target = decorated;
|
|
}
|
|
}
|
|
return target;
|
|
}
|
|
function DecoratePropertyWithDescriptor(decorators, target, propertyKey, descriptor) {
|
|
for (var i = decorators.length - 1; i >= 0; --i) {
|
|
var decorator = decorators[i];
|
|
var decorated = decorator(target, propertyKey, descriptor);
|
|
if (!IsUndefined(decorated)) {
|
|
if (!IsObject(decorated)) {
|
|
throw new TypeError();
|
|
}
|
|
descriptor = decorated;
|
|
}
|
|
}
|
|
return descriptor;
|
|
}
|
|
function DecoratePropertyWithoutDescriptor(decorators, target, propertyKey) {
|
|
for (var i = decorators.length - 1; i >= 0; --i) {
|
|
var decorator = decorators[i];
|
|
decorator(target, propertyKey);
|
|
}
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#getorcreatemetadatamap--o-p-create-
|
|
function GetOrCreateMetadataMap(target, targetKey, create) {
|
|
var targetMetadata = __Metadata__.get(target);
|
|
if (!targetMetadata) {
|
|
if (!create) {
|
|
return undefined;
|
|
}
|
|
targetMetadata = new _Map();
|
|
__Metadata__.set(target, targetMetadata);
|
|
}
|
|
var keyMetadata = targetMetadata.get(targetKey);
|
|
if (!keyMetadata) {
|
|
if (!create) {
|
|
return undefined;
|
|
}
|
|
keyMetadata = new _Map();
|
|
targetMetadata.set(targetKey, keyMetadata);
|
|
}
|
|
return keyMetadata;
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinaryhasmetadata--metadatakey-o-p-
|
|
function OrdinaryHasMetadata(MetadataKey, O, P) {
|
|
var hasOwn = OrdinaryHasOwnMetadata(MetadataKey, O, P);
|
|
if (hasOwn) {
|
|
return true;
|
|
}
|
|
var parent = GetPrototypeOf(O);
|
|
if (parent !== null) {
|
|
return OrdinaryHasMetadata(MetadataKey, parent, P);
|
|
}
|
|
return false;
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinaryhasownmetadata--metadatakey-o-p-
|
|
function OrdinaryHasOwnMetadata(MetadataKey, O, P) {
|
|
var metadataMap = GetOrCreateMetadataMap(O, P, false);
|
|
if (metadataMap === undefined) {
|
|
return false;
|
|
}
|
|
return Boolean(metadataMap.has(MetadataKey));
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinarygetmetadata--metadatakey-o-p-
|
|
function OrdinaryGetMetadata(MetadataKey, O, P) {
|
|
var hasOwn = OrdinaryHasOwnMetadata(MetadataKey, O, P);
|
|
if (hasOwn) {
|
|
return OrdinaryGetOwnMetadata(MetadataKey, O, P);
|
|
}
|
|
var parent = GetPrototypeOf(O);
|
|
if (parent !== null) {
|
|
return OrdinaryGetMetadata(MetadataKey, parent, P);
|
|
}
|
|
return undefined;
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinarygetownmetadata--metadatakey-o-p-
|
|
function OrdinaryGetOwnMetadata(MetadataKey, O, P) {
|
|
var metadataMap = GetOrCreateMetadataMap(O, P, false);
|
|
if (metadataMap === undefined) {
|
|
return undefined;
|
|
}
|
|
return metadataMap.get(MetadataKey);
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinarydefineownmetadata--metadatakey-metadatavalue-o-p-
|
|
function OrdinaryDefineOwnMetadata(MetadataKey, MetadataValue, O, P) {
|
|
var metadataMap = GetOrCreateMetadataMap(O, P, true);
|
|
metadataMap.set(MetadataKey, MetadataValue);
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinarymetadatakeys--o-p-
|
|
function OrdinaryMetadataKeys(O, P) {
|
|
var ownKeys = OrdinaryOwnMetadataKeys(O, P);
|
|
var parent = GetPrototypeOf(O);
|
|
if (parent === null) {
|
|
return ownKeys;
|
|
}
|
|
var parentKeys = OrdinaryMetadataKeys(parent, P);
|
|
if (parentKeys.length <= 0) {
|
|
return ownKeys;
|
|
}
|
|
if (ownKeys.length <= 0) {
|
|
return parentKeys;
|
|
}
|
|
var set = new _Set();
|
|
var keys = [];
|
|
for (var _i = 0; _i < ownKeys.length; _i++) {
|
|
var key = ownKeys[_i];
|
|
var hasKey = set.has(key);
|
|
if (!hasKey) {
|
|
set.add(key);
|
|
keys.push(key);
|
|
}
|
|
}
|
|
for (var _a = 0; _a < parentKeys.length; _a++) {
|
|
var key = parentKeys[_a];
|
|
var hasKey = set.has(key);
|
|
if (!hasKey) {
|
|
set.add(key);
|
|
keys.push(key);
|
|
}
|
|
}
|
|
return keys;
|
|
}
|
|
// https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md#ordinaryownmetadatakeys--o-p-
|
|
function OrdinaryOwnMetadataKeys(target, targetKey) {
|
|
var metadataMap = GetOrCreateMetadataMap(target, targetKey, false);
|
|
var keys = [];
|
|
if (metadataMap) {
|
|
metadataMap.forEach(function (_, key) { return keys.push(key); });
|
|
}
|
|
return keys;
|
|
}
|
|
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-ecmascript-language-types-undefined-type
|
|
function IsUndefined(x) {
|
|
return x === undefined;
|
|
}
|
|
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isarray
|
|
function IsArray(x) {
|
|
return Array.isArray(x);
|
|
}
|
|
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object-type
|
|
function IsObject(x) {
|
|
return typeof x === "object" ? x !== null : typeof x === "function";
|
|
}
|
|
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isconstructor
|
|
function IsConstructor(x) {
|
|
return typeof x === "function";
|
|
}
|
|
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-ecmascript-language-types-symbol-type
|
|
function IsSymbol(x) {
|
|
return typeof x === "symbol";
|
|
}
|
|
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-topropertykey
|
|
function ToPropertyKey(value) {
|
|
if (IsSymbol(value)) {
|
|
return value;
|
|
}
|
|
return String(value);
|
|
}
|
|
function GetPrototypeOf(O) {
|
|
var proto = Object.getPrototypeOf(O);
|
|
if (typeof O !== "function" || O === functionPrototype) {
|
|
return proto;
|
|
}
|
|
// TypeScript doesn't set __proto__ in ES5, as it's non-standard.
|
|
// Try to determine the superclass constructor. Compatible implementations
|
|
// must either set __proto__ on a subclass constructor to the superclass constructor,
|
|
// or ensure each class has a valid `constructor` property on its prototype that
|
|
// points back to the constructor.
|
|
// If this is not the same as Function.[[Prototype]], then this is definately inherited.
|
|
// This is the case when in ES6 or when using __proto__ in a compatible browser.
|
|
if (proto !== functionPrototype) {
|
|
return proto;
|
|
}
|
|
// If the super prototype is Object.prototype, null, or undefined, then we cannot determine the heritage.
|
|
var prototype = O.prototype;
|
|
var prototypeProto = Object.getPrototypeOf(prototype);
|
|
if (prototypeProto == null || prototypeProto === Object.prototype) {
|
|
return proto;
|
|
}
|
|
// if the constructor was not a function, then we cannot determine the heritage.
|
|
var constructor = prototypeProto.constructor;
|
|
if (typeof constructor !== "function") {
|
|
return proto;
|
|
}
|
|
// if we have some kind of self-reference, then we cannot determine the heritage.
|
|
if (constructor === O) {
|
|
return proto;
|
|
}
|
|
// we have a pretty good guess at the heritage.
|
|
return constructor;
|
|
}
|
|
// naive Map shim
|
|
function CreateMapPolyfill() {
|
|
var cacheSentinel = {};
|
|
function Map() {
|
|
this._keys = [];
|
|
this._values = [];
|
|
this._cache = cacheSentinel;
|
|
}
|
|
Map.prototype = {
|
|
get size() {
|
|
return this._keys.length;
|
|
},
|
|
has: function (key) {
|
|
if (key === this._cache) {
|
|
return true;
|
|
}
|
|
if (this._find(key) >= 0) {
|
|
this._cache = key;
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
get: function (key) {
|
|
var index = this._find(key);
|
|
if (index >= 0) {
|
|
this._cache = key;
|
|
return this._values[index];
|
|
}
|
|
return undefined;
|
|
},
|
|
set: function (key, value) {
|
|
this.delete(key);
|
|
this._keys.push(key);
|
|
this._values.push(value);
|
|
this._cache = key;
|
|
return this;
|
|
},
|
|
delete: function (key) {
|
|
var index = this._find(key);
|
|
if (index >= 0) {
|
|
this._keys.splice(index, 1);
|
|
this._values.splice(index, 1);
|
|
this._cache = cacheSentinel;
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
clear: function () {
|
|
this._keys.length = 0;
|
|
this._values.length = 0;
|
|
this._cache = cacheSentinel;
|
|
},
|
|
forEach: function (callback, thisArg) {
|
|
var size = this.size;
|
|
for (var i = 0; i < size; ++i) {
|
|
var key = this._keys[i];
|
|
var value = this._values[i];
|
|
this._cache = key;
|
|
callback.call(this, value, key, this);
|
|
}
|
|
},
|
|
_find: function (key) {
|
|
var keys = this._keys;
|
|
var size = keys.length;
|
|
for (var i = 0; i < size; ++i) {
|
|
if (keys[i] === key) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
};
|
|
return Map;
|
|
}
|
|
// naive Set shim
|
|
function CreateSetPolyfill() {
|
|
var cacheSentinel = {};
|
|
function Set() {
|
|
this._map = new _Map();
|
|
}
|
|
Set.prototype = {
|
|
get size() {
|
|
return this._map.length;
|
|
},
|
|
has: function (value) {
|
|
return this._map.has(value);
|
|
},
|
|
add: function (value) {
|
|
this._map.set(value, value);
|
|
return this;
|
|
},
|
|
delete: function (value) {
|
|
return this._map.delete(value);
|
|
},
|
|
clear: function () {
|
|
this._map.clear();
|
|
},
|
|
forEach: function (callback, thisArg) {
|
|
this._map.forEach(callback, thisArg);
|
|
}
|
|
};
|
|
return Set;
|
|
}
|
|
// naive WeakMap shim
|
|
function CreateWeakMapPolyfill() {
|
|
var UUID_SIZE = 16;
|
|
var isNode = typeof global !== "undefined" &&
|
|
typeof module === "object" &&
|
|
typeof module.exports === "object" &&
|
|
typeof require === "function";
|
|
var nodeCrypto = isNode && require("crypto");
|
|
var hasOwn = Object.prototype.hasOwnProperty;
|
|
var keys = {};
|
|
var rootKey = CreateUniqueKey();
|
|
function WeakMap() {
|
|
this._key = CreateUniqueKey();
|
|
}
|
|
WeakMap.prototype = {
|
|
has: function (target) {
|
|
var table = GetOrCreateWeakMapTable(target, false);
|
|
if (table) {
|
|
return this._key in table;
|
|
}
|
|
return false;
|
|
},
|
|
get: function (target) {
|
|
var table = GetOrCreateWeakMapTable(target, false);
|
|
if (table) {
|
|
return table[this._key];
|
|
}
|
|
return undefined;
|
|
},
|
|
set: function (target, value) {
|
|
var table = GetOrCreateWeakMapTable(target, true);
|
|
table[this._key] = value;
|
|
return this;
|
|
},
|
|
delete: function (target) {
|
|
var table = GetOrCreateWeakMapTable(target, false);
|
|
if (table && this._key in table) {
|
|
return delete table[this._key];
|
|
}
|
|
return false;
|
|
},
|
|
clear: function () {
|
|
// NOTE: not a real clear, just makes the previous data unreachable
|
|
this._key = CreateUniqueKey();
|
|
}
|
|
};
|
|
function FillRandomBytes(buffer, size) {
|
|
for (var i = 0; i < size; ++i) {
|
|
buffer[i] = Math.random() * 255 | 0;
|
|
}
|
|
}
|
|
function GenRandomBytes(size) {
|
|
if (nodeCrypto) {
|
|
var data = nodeCrypto.randomBytes(size);
|
|
return data;
|
|
}
|
|
else if (typeof Uint8Array === "function") {
|
|
var data = new Uint8Array(size);
|
|
if (typeof crypto !== "undefined") {
|
|
crypto.getRandomValues(data);
|
|
}
|
|
else if (typeof msCrypto !== "undefined") {
|
|
msCrypto.getRandomValues(data);
|
|
}
|
|
else {
|
|
FillRandomBytes(data, size);
|
|
}
|
|
return data;
|
|
}
|
|
else {
|
|
var data = new Array(size);
|
|
FillRandomBytes(data, size);
|
|
return data;
|
|
}
|
|
}
|
|
function CreateUUID() {
|
|
var data = GenRandomBytes(UUID_SIZE);
|
|
// mark as random - RFC 4122 § 4.4
|
|
data[6] = data[6] & 0x4f | 0x40;
|
|
data[8] = data[8] & 0xbf | 0x80;
|
|
var result = "";
|
|
for (var offset = 0; offset < UUID_SIZE; ++offset) {
|
|
var byte = data[offset];
|
|
if (offset === 4 || offset === 6 || offset === 8) {
|
|
result += "-";
|
|
}
|
|
if (byte < 16) {
|
|
result += "0";
|
|
}
|
|
result += byte.toString(16).toLowerCase();
|
|
}
|
|
return result;
|
|
}
|
|
function CreateUniqueKey() {
|
|
var key;
|
|
do {
|
|
key = "@@WeakMap@@" + CreateUUID();
|
|
} while (hasOwn.call(keys, key));
|
|
keys[key] = true;
|
|
return key;
|
|
}
|
|
function GetOrCreateWeakMapTable(target, create) {
|
|
if (!hasOwn.call(target, rootKey)) {
|
|
if (!create) {
|
|
return undefined;
|
|
}
|
|
Object.defineProperty(target, rootKey, { value: Object.create(null) });
|
|
}
|
|
return target[rootKey];
|
|
}
|
|
return WeakMap;
|
|
}
|
|
// hook global Reflect
|
|
(function (__global) {
|
|
if (typeof __global.Reflect !== "undefined") {
|
|
if (__global.Reflect !== Reflect) {
|
|
for (var p in Reflect) {
|
|
__global.Reflect[p] = Reflect[p];
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
__global.Reflect = Reflect;
|
|
}
|
|
})(typeof window !== "undefined" ? window :
|
|
typeof WorkerGlobalScope !== "undefined" ? self :
|
|
typeof global !== "undefined" ? global :
|
|
Function("return this;")());
|
|
})(Reflect || (Reflect = {}));
|
|
//# sourceMappingURL=Reflect.js.map
|