From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/builtin/WeakMap.js | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 js/src/builtin/WeakMap.js (limited to 'js/src/builtin/WeakMap.js') diff --git a/js/src/builtin/WeakMap.js b/js/src/builtin/WeakMap.js new file mode 100644 index 0000000000..5e91c5eba6 --- /dev/null +++ b/js/src/builtin/WeakMap.js @@ -0,0 +1,28 @@ +/* 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); + } + + // Steps 6.c-8. + for (var nextItem of allowContentIter(iterable)) { + // Step 8.d. + if (!IsObject(nextItem)) { + ThrowTypeError(JSMSG_INVALID_MAP_ITERABLE, "WeakMap"); + } + + // Steps 8.e-j. + callContentFunction(adder, map, nextItem[0], nextItem[1]); + } +} -- cgit v1.2.3