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Diffstat (limited to '')
-rw-r--r-- | js/src/builtin/WeakSet.js | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/builtin/WeakSet.js b/js/src/builtin/WeakSet.js new file mode 100644 index 0000000000..13f6abd8f0 --- /dev/null +++ b/js/src/builtin/WeakSet.js @@ -0,0 +1,20 @@ +/* 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); + + // Steps 6.c-8. + for (var nextValue of allowContentIter(iterable)) + callContentFunction(adder, set, nextValue); +} |