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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
// 23.4.1.1 WeakSet, steps 6-8
function WeakSetConstructorInit(iterable) {
var set = this;
// Step 6.a.
var adder = set.add;
// Step 6.b.
if (!IsCallable(adder))
ThrowTypeError(JSMSG_NOT_FUNCTION, typeof adder);
// Step 6.c.
var iterFn = iterable[std_iterator];
if (!IsCallable(iterFn))
ThrowTypeError(JSMSG_NOT_ITERABLE, DecompileArg(0, iterable));
var iter = callContentFunction(iterFn, iterable);
if (!IsObject(iter))
ThrowTypeError(JSMSG_NOT_NONNULL_OBJECT, typeof iter);
// Step 7 (not applicable).
// Step 8.
while (true) {
// Step 8.a.
var next = callContentFunction(iter.next, iter);
if (!IsObject(next))
ThrowTypeError(JSMSG_NOT_NONNULL_OBJECT, typeof next);
// Step 8.b.
if (next.done)
return;
// Step 8.c.
var nextValue = next.value;
// Steps 8.d-e.
try {
callContentFunction(adder, set, nextValue);
} catch (e) {
IteratorCloseThrow(iter);
throw e;
}
}
}
// 23.4.3.1
function WeakSet_add(value) {
// Steps 1-3.
var S = this;
if (!IsObject(S) || !IsWeakSet(S))
return callFunction(CallWeakSetMethodIfWrapped, this, value, "WeakSet_add");
// Step 4.,6.
let entries = UnsafeGetReservedSlot(this, WEAKSET_MAP_SLOT);
if (!entries)
ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "WeakSet", "add", typeof S);
// Step 5.
if (!IsObject(value))
ThrowTypeError(JSMSG_NOT_NONNULL_OBJECT, DecompileArg(0, value));
// Steps 7-8.
callFunction(std_WeakMap_set, entries, value, true);
// Step 8.
return S;
}
// 23.4.3.3
function WeakSet_delete(value) {
// Steps 1-3.
var S = this;
if (!IsObject(S) || !IsWeakSet(S))
return callFunction(CallWeakSetMethodIfWrapped, this, value, "WeakSet_delete");
// Step 4.,6.
let entries = UnsafeGetReservedSlot(this, WEAKSET_MAP_SLOT);
if (!entries)
ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "WeakSet", "delete", typeof S);
// Step 5.
if (!IsObject(value))
return false;
// Steps 7-8.
return callFunction(std_WeakMap_delete, entries, value);
}
// 23.4.3.4
function WeakSet_has(value) {
// Steps 1-3.
var S = this;
if (!IsObject(S) || !IsWeakSet(S))
return callFunction(CallWeakSetMethodIfWrapped, this, value, "WeakSet_has");
// Step 4-5.
let entries = UnsafeGetReservedSlot(this, WEAKSET_MAP_SLOT);
if (!entries)
ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "WeakSet", "has", typeof S);
// Step 6.
if (!IsObject(value))
return false;
// Steps 7-8.
return callFunction(std_WeakMap_has, entries, value);
}
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