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/* 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]");
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