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Copyright (C) Microsoft. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
var Reflect;
(function (Reflect) {
// Metadata Proposal
// https://rbuckton.github.io/reflect-metadata/
(function (factory) {
var root = typeof global === "object" ? global :
typeof self === "object" ? self :
typeof this === "object" ? this :
Function("return this;")();
var exporter = makeExporter(Reflect);
if (typeof root.Reflect === "undefined") {
root.Reflect = Reflect;
}
else {
exporter = makeExporter(root.Reflect, exporter);
}
factory(exporter);
function makeExporter(target, previous) {
return function (key, value) {
if (typeof target[key] !== "function") {
Object.defineProperty(target, key, { configurable: true, writable: true, value: value });
}
if (previous)
previous(key, value);
};
}
})(function (exporter) {
var hasOwn = Object.prototype.hasOwnProperty;
// feature test for Symbol support
var supportsSymbol = typeof Symbol === "function";
var toPrimitiveSymbol = supportsSymbol && typeof Symbol.toPrimitive !== "undefined" ? Symbol.toPrimitive : "@@toPrimitive";
var iteratorSymbol = supportsSymbol && typeof Symbol.iterator !== "undefined" ? Symbol.iterator : "@@iterator";
var supportsCreate = typeof Object.create === "function"; // feature test for Object.create support
var supportsProto = { __proto__: [] } instanceof Array; // feature test for __proto__ support
var downLevel = !supportsCreate && !supportsProto;
var HashMap = {
// create an object in dictionary mode (a.k.a. "slow" mode in v8)
create: supportsCreate
? function () { return MakeDictionary(Object.create(null)); }
: supportsProto
? function () { return MakeDictionary({ __proto__: null }); }
: function () { return MakeDictionary({}); },
has: downLevel
? function (map, key) { return hasOwn.call(map, key); }
: function (map, key) { return key in map; },
get: downLevel
? function (map, key) { return hasOwn.call(map, key) ? map[key] : undefined; }
: function (map, key) { return map[key]; },
};
// Load global or shim versions of Map, Set, and WeakMap
var functionPrototype = Object.getPrototypeOf(Function);
var usePolyfill = typeof process === "object" && process.env && process.env["REFLECT_METADATA_USE_MAP_POLYFILL"] === "true";
var _Map = !usePolyfill && typeof Map === "function" && typeof Map.prototype.entries === "function" ? Map : CreateMapPolyfill();
var _Set = !usePolyfill && typeof Set === "function" && typeof Set.prototype.entries === "function" ? Set : CreateSetPolyfill();
var _WeakMap = !usePolyfill && typeof WeakMap === "function" ? WeakMap : CreateWeakMapPolyfill();
// [[Metadata]] internal slot
// https://rbuckton.github.io/reflect-metadata/#ordinary-object-internal-methods-and-internal-slots
var Metadata = new _WeakMap();
/**
* Applies a set of decorators to a property of a target object.
* @param decorators An array of decorators.
* @param target The target object.
* @param propertyKey (Optional) The property key to decorate.
* @param attributes (Optional) The property descriptor for the target key.
* @remarks Decorators are applied in reverse order.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* Example = Reflect.decorate(decoratorsArray, Example);
*
* // property (on constructor)
* Reflect.decorate(decoratorsArray, Example, "staticProperty");
*
* // property (on prototype)
* Reflect.decorate(decoratorsArray, Example.prototype, "property");
*
* // method (on constructor)
* Object.defineProperty(Example, "staticMethod",
* Reflect.decorate(decoratorsArray, Example, "staticMethod",
* Object.getOwnPropertyDescriptor(Example, "staticMethod")));
*
* // method (on prototype)
* Object.defineProperty(Example.prototype, "method",
* Reflect.decorate(decoratorsArray, Example.prototype, "method",
* Object.getOwnPropertyDescriptor(Example.prototype, "method")));
*
*/
function decorate(decorators, target, propertyKey, attributes) {
if (!IsUndefined(propertyKey)) {
if (!IsArray(decorators))
throw new TypeError();
if (!IsObject(target))
throw new TypeError();
if (!IsObject(attributes) && !IsUndefined(attributes) && !IsNull(attributes))
throw new TypeError();
if (IsNull(attributes))
attributes = undefined;
propertyKey = ToPropertyKey(propertyKey);
return DecorateProperty(decorators, target, propertyKey, attributes);
}
else {
if (!IsArray(decorators))
throw new TypeError();
if (!IsConstructor(target))
throw new TypeError();
return DecorateConstructor(decorators, target);
}
}
exporter("decorate", decorate);
// 4.1.2 Reflect.metadata(metadataKey, metadataValue)
// https://rbuckton.github.io/reflect-metadata/#reflect.metadata
/**
* A default metadata decorator factory that can be used on a class, class member, or parameter.
* @param metadataKey The key for the metadata entry.
* @param metadataValue The value for the metadata entry.
* @returns A decorator function.
* @remarks
* If `metadataKey` is already defined for the target and target key, the
* metadataValue for that key will be overwritten.
* @example
*
* // constructor
* @Reflect.metadata(key, value)
* class Example {
* }
*
* // property (on constructor, TypeScript only)
* class Example {
* @Reflect.metadata(key, value)
* static staticProperty;
* }
*
* // property (on prototype, TypeScript only)
* class Example {
* @Reflect.metadata(key, value)
* property;
* }
*
* // method (on constructor)
* class Example {
* @Reflect.metadata(key, value)
* static staticMethod() { }
* }
*
* // method (on prototype)
* class Example {
* @Reflect.metadata(key, value)
* method() { }
* }
*
*/
function metadata(metadataKey, metadataValue) {
function decorator(target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey) && !IsPropertyKey(propertyKey))
throw new TypeError();
OrdinaryDefineOwnMetadata(metadataKey, metadataValue, target, propertyKey);
}
return decorator;
}
exporter("metadata", metadata);
/**
* Define a unique metadata entry on the target.
* @param metadataKey A key used to store and retrieve metadata.
* @param metadataValue A value that contains attached metadata.
* @param target The target object on which to define metadata.
* @param propertyKey (Optional) The property key for the target.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* Reflect.defineMetadata("custom:annotation", options, Example);
*
* // property (on constructor)
* Reflect.defineMetadata("custom:annotation", options, Example, "staticProperty");
*
* // property (on prototype)
* Reflect.defineMetadata("custom:annotation", options, Example.prototype, "property");
*
* // method (on constructor)
* Reflect.defineMetadata("custom:annotation", options, Example, "staticMethod");
*
* // method (on prototype)
* Reflect.defineMetadata("custom:annotation", options, Example.prototype, "method");
*
* // decorator factory as metadata-producing annotation.
* function MyAnnotation(options): Decorator {
* return (target, key?) => Reflect.defineMetadata("custom:annotation", options, target, key);
* }
*
*/
function defineMetadata(metadataKey, metadataValue, target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryDefineOwnMetadata(metadataKey, metadataValue, target, propertyKey);
}
exporter("defineMetadata", defineMetadata);
/**
* Gets a value indicating whether the target object or its prototype chain has the provided metadata key defined.
* @param metadataKey A key used to store and retrieve metadata.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns `true` if the metadata key was defined on the target object or its prototype chain; otherwise, `false`.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.hasMetadata("custom:annotation", Example);
*
* // property (on constructor)
* result = Reflect.hasMetadata("custom:annotation", Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.hasMetadata("custom:annotation", Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.hasMetadata("custom:annotation", Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.hasMetadata("custom:annotation", Example.prototype, "method");
*
*/
function hasMetadata(metadataKey, target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryHasMetadata(metadataKey, target, propertyKey);
}
exporter("hasMetadata", hasMetadata);
/**
* Gets a value indicating whether the target object has the provided metadata key defined.
* @param metadataKey A key used to store and retrieve metadata.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns `true` if the metadata key was defined on the target object; otherwise, `false`.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.hasOwnMetadata("custom:annotation", Example);
*
* // property (on constructor)
* result = Reflect.hasOwnMetadata("custom:annotation", Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.hasOwnMetadata("custom:annotation", Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.hasOwnMetadata("custom:annotation", Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.hasOwnMetadata("custom:annotation", Example.prototype, "method");
*
*/
function hasOwnMetadata(metadataKey, target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryHasOwnMetadata(metadataKey, target, propertyKey);
}
exporter("hasOwnMetadata", hasOwnMetadata);
/**
* Gets the metadata value for the provided metadata key on the target object or its prototype chain.
* @param metadataKey A key used to store and retrieve metadata.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns The metadata value for the metadata key if found; otherwise, `undefined`.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.getMetadata("custom:annotation", Example);
*
* // property (on constructor)
* result = Reflect.getMetadata("custom:annotation", Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.getMetadata("custom:annotation", Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.getMetadata("custom:annotation", Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.getMetadata("custom:annotation", Example.prototype, "method");
*
*/
function getMetadata(metadataKey, target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryGetMetadata(metadataKey, target, propertyKey);
}
exporter("getMetadata", getMetadata);
/**
* Gets the metadata value for the provided metadata key on the target object.
* @param metadataKey A key used to store and retrieve metadata.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns The metadata value for the metadata key if found; otherwise, `undefined`.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.getOwnMetadata("custom:annotation", Example);
*
* // property (on constructor)
* result = Reflect.getOwnMetadata("custom:annotation", Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.getOwnMetadata("custom:annotation", Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.getOwnMetadata("custom:annotation", Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.getOwnMetadata("custom:annotation", Example.prototype, "method");
*
*/
function getOwnMetadata(metadataKey, target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryGetOwnMetadata(metadataKey, target, propertyKey);
}
exporter("getOwnMetadata", getOwnMetadata);
/**
* Gets the metadata keys defined on the target object or its prototype chain.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns An array of unique metadata keys.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.getMetadataKeys(Example);
*
* // property (on constructor)
* result = Reflect.getMetadataKeys(Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.getMetadataKeys(Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.getMetadataKeys(Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.getMetadataKeys(Example.prototype, "method");
*
*/
function getMetadataKeys(target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryMetadataKeys(target, propertyKey);
}
exporter("getMetadataKeys", getMetadataKeys);
/**
* Gets the unique metadata keys defined on the target object.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns An array of unique metadata keys.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.getOwnMetadataKeys(Example);
*
* // property (on constructor)
* result = Reflect.getOwnMetadataKeys(Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.getOwnMetadataKeys(Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.getOwnMetadataKeys(Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.getOwnMetadataKeys(Example.prototype, "method");
*
*/
function getOwnMetadataKeys(target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
return OrdinaryOwnMetadataKeys(target, propertyKey);
}
exporter("getOwnMetadataKeys", getOwnMetadataKeys);
/**
* Deletes the metadata entry from the target object with the provided key.
* @param metadataKey A key used to store and retrieve metadata.
* @param target The target object on which the metadata is defined.
* @param propertyKey (Optional) The property key for the target.
* @returns `true` if the metadata entry was found and deleted; otherwise, false.
* @example
*
* class Example {
* // property declarations are not part of ES6, though they are valid in TypeScript:
* // static staticProperty;
* // property;
*
* constructor(p) { }
* static staticMethod(p) { }
* method(p) { }
* }
*
* // constructor
* result = Reflect.deleteMetadata("custom:annotation", Example);
*
* // property (on constructor)
* result = Reflect.deleteMetadata("custom:annotation", Example, "staticProperty");
*
* // property (on prototype)
* result = Reflect.deleteMetadata("custom:annotation", Example.prototype, "property");
*
* // method (on constructor)
* result = Reflect.deleteMetadata("custom:annotation", Example, "staticMethod");
*
* // method (on prototype)
* result = Reflect.deleteMetadata("custom:annotation", Example.prototype, "method");
*
*/
function deleteMetadata(metadataKey, target, propertyKey) {
if (!IsObject(target))
throw new TypeError();
if (!IsUndefined(propertyKey))
propertyKey = ToPropertyKey(propertyKey);
var metadataMap = GetOrCreateMetadataMap(target, propertyKey, /*Create*/ false);
if (IsUndefined(metadataMap))
return false;
if (!metadataMap.delete(metadataKey))
return false;
if (metadataMap.size > 0)
return true;
var targetMetadata = Metadata.get(target);
targetMetadata.delete(propertyKey);
if (targetMetadata.size > 0)
return true;
Metadata.delete(target);
return true;
}
exporter("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) && !IsNull(decorated)) {
if (!IsConstructor(decorated))
throw new TypeError();
target = decorated;
}
}
return target;
}
function DecorateProperty(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) && !IsNull(decorated)) {
if (!IsObject(decorated))
throw new TypeError();
descriptor = decorated;
}
}
return descriptor;
}
function GetOrCreateMetadataMap(O, P, Create) {
var targetMetadata = Metadata.get(O);
if (IsUndefined(targetMetadata)) {
if (!Create)
return undefined;
targetMetadata = new _Map();
Metadata.set(O, targetMetadata);
}
var metadataMap = targetMetadata.get(P);
if (IsUndefined(metadataMap)) {
if (!Create)
return undefined;
metadataMap = new _Map();
targetMetadata.set(P, metadataMap);
}
return metadataMap;
}
// 3.1.1.1 OrdinaryHasMetadata(MetadataKey, O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinaryhasmetadata
function OrdinaryHasMetadata(MetadataKey, O, P) {
var hasOwn = OrdinaryHasOwnMetadata(MetadataKey, O, P);
if (hasOwn)
return true;
var parent = OrdinaryGetPrototypeOf(O);
if (!IsNull(parent))
return OrdinaryHasMetadata(MetadataKey, parent, P);
return false;
}
// 3.1.2.1 OrdinaryHasOwnMetadata(MetadataKey, O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinaryhasownmetadata
function OrdinaryHasOwnMetadata(MetadataKey, O, P) {
var metadataMap = GetOrCreateMetadataMap(O, P, /*Create*/ false);
if (IsUndefined(metadataMap))
return false;
return ToBoolean(metadataMap.has(MetadataKey));
}
// 3.1.3.1 OrdinaryGetMetadata(MetadataKey, O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinarygetmetadata
function OrdinaryGetMetadata(MetadataKey, O, P) {
var hasOwn = OrdinaryHasOwnMetadata(MetadataKey, O, P);
if (hasOwn)
return OrdinaryGetOwnMetadata(MetadataKey, O, P);
var parent = OrdinaryGetPrototypeOf(O);
if (!IsNull(parent))
return OrdinaryGetMetadata(MetadataKey, parent, P);
return undefined;
}
// 3.1.4.1 OrdinaryGetOwnMetadata(MetadataKey, O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinarygetownmetadata
function OrdinaryGetOwnMetadata(MetadataKey, O, P) {
var metadataMap = GetOrCreateMetadataMap(O, P, /*Create*/ false);
if (IsUndefined(metadataMap))
return undefined;
return metadataMap.get(MetadataKey);
}
// 3.1.5.1 OrdinaryDefineOwnMetadata(MetadataKey, MetadataValue, O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinarydefineownmetadata
function OrdinaryDefineOwnMetadata(MetadataKey, MetadataValue, O, P) {
var metadataMap = GetOrCreateMetadataMap(O, P, /*Create*/ true);
metadataMap.set(MetadataKey, MetadataValue);
}
// 3.1.6.1 OrdinaryMetadataKeys(O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinarymetadatakeys
function OrdinaryMetadataKeys(O, P) {
var ownKeys = OrdinaryOwnMetadataKeys(O, P);
var parent = OrdinaryGetPrototypeOf(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, ownKeys_1 = ownKeys; _i < ownKeys_1.length; _i++) {
var key = ownKeys_1[_i];
var hasKey = set.has(key);
if (!hasKey) {
set.add(key);
keys.push(key);
}
}
for (var _a = 0, parentKeys_1 = parentKeys; _a < parentKeys_1.length; _a++) {
var key = parentKeys_1[_a];
var hasKey = set.has(key);
if (!hasKey) {
set.add(key);
keys.push(key);
}
}
return keys;
}
// 3.1.7.1 OrdinaryOwnMetadataKeys(O, P)
// https://rbuckton.github.io/reflect-metadata/#ordinaryownmetadatakeys
function OrdinaryOwnMetadataKeys(O, P) {
var keys = [];
var metadataMap = GetOrCreateMetadataMap(O, P, /*Create*/ false);
if (IsUndefined(metadataMap))
return keys;
var keysObj = metadataMap.keys();
var iterator = GetIterator(keysObj);
var k = 0;
while (true) {
var next = IteratorStep(iterator);
if (!next) {
keys.length = k;
return keys;
}
var nextValue = IteratorValue(next);
try {
keys[k] = nextValue;
}
catch (e) {
try {
IteratorClose(iterator);
}
finally {
throw e;
}
}
k++;
}
}
// 6 ECMAScript Data Typ0es and Values
// https://tc39.github.io/ecma262/#sec-ecmascript-data-types-and-values
function Type(x) {
if (x === null)
return 1 /* Null */;
switch (typeof x) {
case "undefined": return 0 /* Undefined */;
case "boolean": return 2 /* Boolean */;
case "string": return 3 /* String */;
case "symbol": return 4 /* Symbol */;
case "number": return 5 /* Number */;
case "object": return x === null ? 1 /* Null */ : 6 /* Object */;
default: return 6 /* Object */;
}
}
// 6.1.1 The Undefined Type
// https://tc39.github.io/ecma262/#sec-ecmascript-language-types-undefined-type
function IsUndefined(x) {
return x === undefined;
}
// 6.1.2 The Null Type
// https://tc39.github.io/ecma262/#sec-ecmascript-language-types-null-type
function IsNull(x) {
return x === null;
}
// 6.1.5 The Symbol Type
// https://tc39.github.io/ecma262/#sec-ecmascript-language-types-symbol-type
function IsSymbol(x) {
return typeof x === "symbol";
}
// 6.1.7 The Object Type
// https://tc39.github.io/ecma262/#sec-object-type
function IsObject(x) {
return typeof x === "object" ? x !== null : typeof x === "function";
}
// 7.1 Type Conversion
// https://tc39.github.io/ecma262/#sec-type-conversion
// 7.1.1 ToPrimitive(input [, PreferredType])
// https://tc39.github.io/ecma262/#sec-toprimitive
function ToPrimitive(input, PreferredType) {
switch (Type(input)) {
case 0 /* Undefined */: return input;
case 1 /* Null */: return input;
case 2 /* Boolean */: return input;
case 3 /* String */: return input;
case 4 /* Symbol */: return input;
case 5 /* Number */: return input;
}
var hint = PreferredType === 3 /* String */ ? "string" : PreferredType === 5 /* Number */ ? "number" : "default";
var exoticToPrim = GetMethod(input, toPrimitiveSymbol);
if (exoticToPrim !== undefined) {
var result = exoticToPrim.call(input, hint);
if (IsObject(result))
throw new TypeError();
return result;
}
return OrdinaryToPrimitive(input, hint === "default" ? "number" : hint);
}
// 7.1.1.1 OrdinaryToPrimitive(O, hint)
// https://tc39.github.io/ecma262/#sec-ordinarytoprimitive
function OrdinaryToPrimitive(O, hint) {
if (hint === "string") {
var toString_1 = O.toString;
if (IsCallable(toString_1)) {
var result = toString_1.call(O);
if (!IsObject(result))
return result;
}
var valueOf = O.valueOf;
if (IsCallable(valueOf)) {
var result = valueOf.call(O);
if (!IsObject(result))
return result;
}
}
else {
var valueOf = O.valueOf;
if (IsCallable(valueOf)) {
var result = valueOf.call(O);
if (!IsObject(result))
return result;
}
var toString_2 = O.toString;
if (IsCallable(toString_2)) {
var result = toString_2.call(O);
if (!IsObject(result))
return result;
}
}
throw new TypeError();
}
// 7.1.2 ToBoolean(argument)
// https://tc39.github.io/ecma262/2016/#sec-toboolean
function ToBoolean(argument) {
return !!argument;
}
// 7.1.12 ToString(argument)
// https://tc39.github.io/ecma262/#sec-tostring
function ToString(argument) {
return "" + argument;
}
// 7.1.14 ToPropertyKey(argument)
// https://tc39.github.io/ecma262/#sec-topropertykey
function ToPropertyKey(argument) {
var key = ToPrimitive(argument, 3 /* String */);
if (IsSymbol(key))
return key;
return ToString(key);
}
// 7.2 Testing and Comparison Operations
// https://tc39.github.io/ecma262/#sec-testing-and-comparison-operations
// 7.2.2 IsArray(argument)
// https://tc39.github.io/ecma262/#sec-isarray
function IsArray(argument) {
return Array.isArray
? Array.isArray(argument)
: argument instanceof Object
? argument instanceof Array
: Object.prototype.toString.call(argument) === "[object Array]";
}
// 7.2.3 IsCallable(argument)
// https://tc39.github.io/ecma262/#sec-iscallable
function IsCallable(argument) {
// NOTE: This is an approximation as we cannot check for [[Call]] internal method.
return typeof argument === "function";
}
// 7.2.4 IsConstructor(argument)
// https://tc39.github.io/ecma262/#sec-isconstructor
function IsConstructor(argument) {
// NOTE: This is an approximation as we cannot check for [[Construct]] internal method.
return typeof argument === "function";
}
// 7.2.7 IsPropertyKey(argument)
// https://tc39.github.io/ecma262/#sec-ispropertykey
function IsPropertyKey(argument) {
switch (Type(argument)) {
case 3 /* String */: return true;
case 4 /* Symbol */: return true;
default: return false;
}
}
// 7.3 Operations on Objects
// https://tc39.github.io/ecma262/#sec-operations-on-objects
// 7.3.9 GetMethod(V, P)
// https://tc39.github.io/ecma262/#sec-getmethod
function GetMethod(V, P) {
var func = V[P];
if (func === undefined || func === null)
return undefined;
if (!IsCallable(func))
throw new TypeError();
return func;
}
// 7.4 Operations on Iterator Objects
// https://tc39.github.io/ecma262/#sec-operations-on-iterator-objects
function GetIterator(obj) {
var method = GetMethod(obj, iteratorSymbol);
if (!IsCallable(method))
throw new TypeError(); // from Call
var iterator = method.call(obj);
if (!IsObject(iterator))
throw new TypeError();
return iterator;
}
// 7.4.4 IteratorValue(iterResult)
// https://tc39.github.io/ecma262/2016/#sec-iteratorvalue
function IteratorValue(iterResult) {
return iterResult.value;
}
// 7.4.5 IteratorStep(iterator)
// https://tc39.github.io/ecma262/#sec-iteratorstep
function IteratorStep(iterator) {
var result = iterator.next();
return result.done ? false : result;
}
// 7.4.6 IteratorClose(iterator, completion)
// https://tc39.github.io/ecma262/#sec-iteratorclose
function IteratorClose(iterator) {
var f = iterator["return"];
if (f)
f.call(iterator);
}
// 9.1 Ordinary Object Internal Methods and Internal Slots
// https://tc39.github.io/ecma262/#sec-ordinary-object-internal-methods-and-internal-slots
// 9.1.1.1 OrdinaryGetPrototypeOf(O)
// https://tc39.github.io/ecma262/#sec-ordinarygetprototypeof
function OrdinaryGetPrototypeOf(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 = prototype && 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 = {};
var arraySentinel = [];
var MapIterator = /** @class */ (function () {
function MapIterator(keys, values, selector) {
this._index = 0;
this._keys = keys;
this._values = values;
this._selector = selector;
}
MapIterator.prototype["@@iterator"] = function () { return this; };
MapIterator.prototype[iteratorSymbol] = function () { return this; };
MapIterator.prototype.next = function () {
var index = this._index;
if (index >= 0 && index < this._keys.length) {
var result = this._selector(this._keys[index], this._values[index]);
if (index + 1 >= this._keys.length) {
this._index = -1;
this._keys = arraySentinel;
this._values = arraySentinel;
}
else {
this._index++;
}
return { value: result, done: false };
}
return { value: undefined, done: true };
};
MapIterator.prototype.throw = function (error) {
if (this._index >= 0) {
this._index = -1;
this._keys = arraySentinel;
this._values = arraySentinel;
}
throw error;
};
MapIterator.prototype.return = function (value) {
if (this._index >= 0) {
this._index = -1;
this._keys = arraySentinel;
this._values = arraySentinel;
}
return { value: value, done: true };
};
return MapIterator;
}());
return /** @class */ (function () {
function Map() {
this._keys = [];
this._values = [];
this._cacheKey = cacheSentinel;
this._cacheIndex = -2;
}
Object.defineProperty(Map.prototype, "size", {
get: function () { return this._keys.length; },
enumerable: true,
configurable: true
});
Map.prototype.has = function (key) { return this._find(key, /*insert*/ false) >= 0; };
Map.prototype.get = function (key) {
var index = this._find(key, /*insert*/ false);
return index >= 0 ? this._values[index] : undefined;
};
Map.prototype.set = function (key, value) {
var index = this._find(key, /*insert*/ true);
this._values[index] = value;
return this;
};
Map.prototype.delete = function (key) {
var index = this._find(key, /*insert*/ false);
if (index >= 0) {
var size = this._keys.length;
for (var i = index + 1; i < size; i++) {
this._keys[i - 1] = this._keys[i];
this._values[i - 1] = this._values[i];
}
this._keys.length--;
this._values.length--;
if (key === this._cacheKey) {
this._cacheKey = cacheSentinel;
this._cacheIndex = -2;
}
return true;
}
return false;
};
Map.prototype.clear = function () {
this._keys.length = 0;
this._values.length = 0;
this._cacheKey = cacheSentinel;
this._cacheIndex = -2;
};
Map.prototype.keys = function () { return new MapIterator(this._keys, this._values, getKey); };
Map.prototype.values = function () { return new MapIterator(this._keys, this._values, getValue); };
Map.prototype.entries = function () { return new MapIterator(this._keys, this._values, getEntry); };
Map.prototype["@@iterator"] = function () { return this.entries(); };
Map.prototype[iteratorSymbol] = function () { return this.entries(); };
Map.prototype._find = function (key, insert) {
if (this._cacheKey !== key) {
this._cacheIndex = this._keys.indexOf(this._cacheKey = key);
}
if (this._cacheIndex < 0 && insert) {
this._cacheIndex = this._keys.length;
this._keys.push(key);
this._values.push(undefined);
}
return this._cacheIndex;
};
return Map;
}());
function getKey(key, _) {
return key;
}
function getValue(_, value) {
return value;
}
function getEntry(key, value) {
return [key, value];
}
}
// naive Set shim
function CreateSetPolyfill() {
return /** @class */ (function () {
function Set() {
this._map = new _Map();
}
Object.defineProperty(Set.prototype, "size", {
get: function () { return this._map.size; },
enumerable: true,
configurable: true
});
Set.prototype.has = function (value) { return this._map.has(value); };
Set.prototype.add = function (value) { return this._map.set(value, value), this; };
Set.prototype.delete = function (value) { return this._map.delete(value); };
Set.prototype.clear = function () { this._map.clear(); };
Set.prototype.keys = function () { return this._map.keys(); };
Set.prototype.values = function () { return this._map.values(); };
Set.prototype.entries = function () { return this._map.entries(); };
Set.prototype["@@iterator"] = function () { return this.keys(); };
Set.prototype[iteratorSymbol] = function () { return this.keys(); };
return Set;
}());
}
// naive WeakMap shim
function CreateWeakMapPolyfill() {
var UUID_SIZE = 16;
var keys = HashMap.create();
var rootKey = CreateUniqueKey();
return /** @class */ (function () {
function WeakMap() {
this._key = CreateUniqueKey();
}
WeakMap.prototype.has = function (target) {
var table = GetOrCreateWeakMapTable(target, /*create*/ false);
return table !== undefined ? HashMap.has(table, this._key) : false;
};
WeakMap.prototype.get = function (target) {
var table = GetOrCreateWeakMapTable(target, /*create*/ false);
return table !== undefined ? HashMap.get(table, this._key) : undefined;
};
WeakMap.prototype.set = function (target, value) {
var table = GetOrCreateWeakMapTable(target, /*create*/ true);
table[this._key] = value;
return this;
};
WeakMap.prototype.delete = function (target) {
var table = GetOrCreateWeakMapTable(target, /*create*/ false);
return table !== undefined ? delete table[this._key] : false;
};
WeakMap.prototype.clear = function () {
// NOTE: not a real clear, just makes the previous data unreachable
this._key = CreateUniqueKey();
};
return WeakMap;
}());
function CreateUniqueKey() {
var key;
do
key = "@@WeakMap@@" + CreateUUID();
while (HashMap.has(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: HashMap.create() });
}
return target[rootKey];
}
function FillRandomBytes(buffer, size) {
for (var i = 0; i < size; ++i)
buffer[i] = Math.random() * 0xff | 0;
return buffer;
}
function GenRandomBytes(size) {
if (typeof Uint8Array === "function") {
if (typeof crypto !== "undefined")
return crypto.getRandomValues(new Uint8Array(size));
if (typeof msCrypto !== "undefined")
return msCrypto.getRandomValues(new Uint8Array(size));
return FillRandomBytes(new Uint8Array(size), size);
}
return FillRandomBytes(new Array(size), size);
}
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;
}
}
// uses a heuristic used by v8 and chakra to force an object into dictionary mode.
function MakeDictionary(obj) {
obj.__ = undefined;
delete obj.__;
return obj;
}
});
})(Reflect || (Reflect = {}));