/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ // ES2017 draft rev 0e10c9f29fca1385980c08a7d5e7bb3eb775e2e4 // 23.1.1.1 Map, steps 6-8 function MapConstructorInit(iterable) { var map = this; // Step 6.a. var adder = map.set; // Step 6.b. if (!IsCallable(adder)) ThrowTypeError(JSMSG_NOT_FUNCTION, typeof adder); // Steps 6.c-8. for (var nextItem of allowContentIter(iterable)) { // Step 8.d. if (!IsObject(nextItem)) ThrowTypeError(JSMSG_INVALID_MAP_ITERABLE, "Map"); // Steps 8.e-j. callContentFunction(adder, map, nextItem[0], nextItem[1]); } } /* ES6 20121122 draft 15.14.4.4. */ function MapForEach(callbackfn, thisArg = undefined) { /* Step 1-2. */ var M = this; if (!IsObject(M)) ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "Map", "forEach", typeof M); /* Step 3-4. */ try { callFunction(std_Map_has, M); } catch (e) { // has will throw on non-Map objects, throw our own error in that case. ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "Map", "forEach", typeof M); } /* Step 5. */ if (!IsCallable(callbackfn)) ThrowTypeError(JSMSG_NOT_FUNCTION, DecompileArg(0, callbackfn)); /* Step 6-8. */ var entries = callFunction(std_Map_iterator, M); while (true) { var result = callFunction(MapIteratorNext, entries); if (result.done) break; var entry = result.value; callContentFunction(callbackfn, thisArg, entry[1], entry[0], M); } } var iteratorTemp = { mapIterationResultPair : null }; function MapIteratorNext() { // Step 1. var O = this; // Steps 2-3. if (!IsObject(O) || (O = GuardToMapIterator(O)) === null) return callFunction(CallMapIteratorMethodIfWrapped, this, "MapIteratorNext"); // Steps 4-5 (implemented in _GetNextMapEntryForIterator). // Steps 8-9 (omitted). var mapIterationResultPair = iteratorTemp.mapIterationResultPair; if (!mapIterationResultPair) { mapIterationResultPair = iteratorTemp.mapIterationResultPair = _CreateMapIterationResultPair(); } var retVal = {value: undefined, done: true}; // Step 10.a, 11. var done = _GetNextMapEntryForIterator(O, mapIterationResultPair); if (!done) { // Steps 10.b-c (omitted). // Step 6. var itemKind = UnsafeGetInt32FromReservedSlot(O, ITERATOR_SLOT_ITEM_KIND); var result; if (itemKind === ITEM_KIND_KEY) { // Step 10.d.i. result = mapIterationResultPair[0]; } else if (itemKind === ITEM_KIND_VALUE) { // Step 10.d.ii. result = mapIterationResultPair[1]; } else { // Step 10.d.iii. assert(itemKind === ITEM_KIND_KEY_AND_VALUE, itemKind); result = [mapIterationResultPair[0], mapIterationResultPair[1]]; } mapIterationResultPair[0] = null; mapIterationResultPair[1] = null; retVal.value = result; retVal.done = false; } // Steps 7, 12. return retVal; } // ES6 final draft 23.1.2.2. function MapSpecies() { // Step 1. return this; } _SetCanonicalName(MapSpecies, "get [Symbol.species]");