106 lines
3.0 KiB
JavaScript
106 lines
3.0 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// ES2017 draft rev 0e10c9f29fca1385980c08a7d5e7bb3eb775e2e4
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// 23.2.1.1 Set, steps 6-8
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function SetConstructorInit(iterable) {
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var set = this;
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// Step 6.a.
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var adder = set.add;
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// Step 6.b.
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if (!IsCallable(adder))
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ThrowTypeError(JSMSG_NOT_FUNCTION, typeof adder);
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// Steps 6.c-8.
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for (var nextValue of allowContentIter(iterable))
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callContentFunction(adder, set, nextValue);
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}
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/* ES6 20121122 draft 15.16.4.6. */
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function SetForEach(callbackfn, thisArg = undefined) {
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/* Step 1-2. */
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var S = this;
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if (!IsObject(S))
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ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "Set", "forEach", typeof S);
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/* Step 3-4. */
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try {
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callFunction(std_Set_has, S);
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} catch (e) {
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// has will throw on non-Set objects, throw our own error in that case.
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ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "Set", "forEach", typeof S);
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}
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/* Step 5-6. */
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if (!IsCallable(callbackfn))
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ThrowTypeError(JSMSG_NOT_FUNCTION, DecompileArg(0, callbackfn));
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/* Step 7-8. */
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var values = callFunction(std_Set_iterator, S);
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while (true) {
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var result = callFunction(SetIteratorNext, values);
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if (result.done)
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break;
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var value = result.value;
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callContentFunction(callbackfn, thisArg, value, value, S);
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}
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}
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// ES6 final draft 23.2.2.2.
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function SetSpecies() {
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// Step 1.
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return this;
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}
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_SetCanonicalName(SetSpecies, "get [Symbol.species]");
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var setIteratorTemp = { setIterationResult : null };
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function SetIteratorNext() {
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// Step 1.
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var O = this;
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// Steps 2-3.
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if (!IsObject(O) || (O = GuardToSetIterator(O)) === null)
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return callFunction(CallSetIteratorMethodIfWrapped, this, "SetIteratorNext");
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// Steps 4-5 (implemented in _GetNextSetEntryForIterator).
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// Steps 8-9 (omitted).
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var setIterationResult = setIteratorTemp.setIterationResult;
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if (!setIterationResult) {
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setIterationResult = setIteratorTemp.setIterationResult = _CreateSetIterationResult();
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}
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var retVal = {value: undefined, done: true};
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// Steps 10.a, 11.
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var done = _GetNextSetEntryForIterator(O, setIterationResult);
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if (!done) {
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// Steps 10.b-c (omitted).
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// Step 6.
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var itemKind = UnsafeGetInt32FromReservedSlot(O, ITERATOR_SLOT_ITEM_KIND);
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var result;
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if (itemKind === ITEM_KIND_VALUE) {
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// Step 10.d.i.
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result = setIterationResult[0];
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} else {
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// Step 10.d.ii.
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assert(itemKind === ITEM_KIND_KEY_AND_VALUE, itemKind);
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result = [setIterationResult[0], setIterationResult[0]];
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}
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setIterationResult[0] = null;
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retVal.value = result;
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retVal.done = false;
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}
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// Steps 7, 10.d, 12.
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return retVal;
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}
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