113 lines
8.8 KiB
JavaScript
113 lines
8.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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exports.default = function (realm) {
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// ECMA262 23.2.1.1
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var func = new _index.NativeFunctionValue(realm, "Set", "Set", 0, function (context, _ref, argCount, NewTarget) {
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var _ref2 = _slicedToArray(_ref, 1),
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iterable = _ref2[0];
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// 1. If NewTarget is undefined, throw a TypeError exception.
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if (!NewTarget) {
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throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError);
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}
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// 2. Let set be ? OrdinaryCreateFromConstructor(NewTarget, "%SetPrototype%", « [[SetData]] »).
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var set = _singletons.Create.OrdinaryCreateFromConstructor(realm, NewTarget, "SetPrototype", {
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$SetData: undefined
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});
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// 3. Set set's [[SetData]] internal slot to a new empty List.
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set.$SetData = [];
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// 4. If iterable is not present, let iterable be undefined.
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if (iterable && realm.isCompatibleWith(realm.MOBILE_JSC_VERSION)) {
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throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError, "the set constructor doesn't take arguments");
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}
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if (!iterable) iterable = realm.intrinsics.undefined;
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// 5. If iterable is either undefined or null, let iter be undefined.
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var iter = void 0,
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adder = void 0;
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if ((0, _index2.HasSomeCompatibleType)(iterable, _index.UndefinedValue, _index.NullValue)) {
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adder = realm.intrinsics.undefined;
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iter = realm.intrinsics.undefined;
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} else {
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// 6. Else,
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// a. Let adder be ? Get(set, "add").
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adder = (0, _index2.Get)(realm, set, "add");
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// b. If IsCallable(adder) is false, throw a TypeError exception.
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if (!(0, _index2.IsCallable)(realm, adder)) {
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throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError);
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}
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// c. Let iter be ? GetIterator(iterable).
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iter = (0, _index2.GetIterator)(realm, iterable);
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}
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// 7. If iter is undefined, return set.
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if (iter instanceof _index.UndefinedValue) {
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return set;
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}
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// 8. Repeat
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while (true) {
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// a. Let next be ? IteratorStep(iter).
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var next = (0, _index2.IteratorStep)(realm, iter);
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// b. If next is false, return set.
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if (!next) return set;
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// c. Let nextValue be ? IteratorValue(next).
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var nextValue = (0, _index2.IteratorValue)(realm, next);
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// d. Let status be Call(adder, set, « nextValue.[[Value]] »).
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try {
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(0, _index2.Call)(realm, adder, set, [nextValue]);
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} catch (status) {
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if (status instanceof _completions.AbruptCompletion) {
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// e. If status is an abrupt completion, return ? IteratorClose(iter, status).
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throw (0, _index2.IteratorClose)(realm, iter, status);
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} else throw status;
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}
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}
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(0, _invariant2.default)(false);
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});
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// ECMA262 23.2.2.2
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func.defineNativeGetter(realm.intrinsics.SymbolSpecies, function (context) {
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// 1. Return the this value
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return context;
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});
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return func;
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};
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var _index = require("../../values/index.js");
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var _completions = require("../../completions.js");
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var _index2 = require("../../methods/index.js");
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var _singletons = require("../../singletons.js");
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var _invariant = require("../../invariant.js");
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var _invariant2 = _interopRequireDefault(_invariant);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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//# sourceMappingURL=Set.js.map
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