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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
// 23.3.1.1 WeakMap, steps 6-8
function WeakMapConstructorInit(iterable) {
var map = this;
// Step 6.a.
var adder = map.set;
// 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 nextItem = next.value;
// Step 8.d.
if (!IsObject(nextItem)) {
IteratorCloseThrow(iter);
ThrowTypeError(JSMSG_INVALID_MAP_ITERABLE, "WeakMap");
}
// Steps 8.e-j.
try {
callContentFunction(adder, map, nextItem[0], nextItem[1]);
} catch (e) {
IteratorCloseThrow(iter);
throw e;
}
}
}
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