From 8dd16259287f58f9273002717ec4d27e97127719 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 12 Jun 2024 07:43:14 +0200 Subject: Merging upstream version 127.0. Signed-off-by: Daniel Baumann --- .../from/from-array-mapper-detaches-result.js | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 js/src/tests/test262/built-ins/TypedArray/from/from-array-mapper-detaches-result.js (limited to 'js/src/tests/test262/built-ins/TypedArray/from/from-array-mapper-detaches-result.js') diff --git a/js/src/tests/test262/built-ins/TypedArray/from/from-array-mapper-detaches-result.js b/js/src/tests/test262/built-ins/TypedArray/from/from-array-mapper-detaches-result.js new file mode 100644 index 0000000000..0af40c814e --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/from/from-array-mapper-detaches-result.js @@ -0,0 +1,39 @@ +// Copyright (C) 2024 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-%typedarray%.from +description: > + If the mapper function detaches the result typed array, .from performs Set operation which ignores out-of-bounds indices. +info: | + %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] ) + + ... + 12. Repeat, while k < len, + ... + c. If mapping is true, then + i. Let mappedValue be ? Call(mapfn, thisArg, « kValue, 𝔽(k) »). + ... + e. Perform ? Set(targetObj, Pk, mappedValue, true). + ... +includes: [detachArrayBuffer.js] +features: [TypedArray] +---*/ + +let ab = new ArrayBuffer(3); +let target = new Int8Array(ab); +let values = [0, 1, 2]; + +let result = Int32Array.from.call(function() { + return target; +}, values, v => { + if (v === 1) { + $DETACHBUFFER(ab); + } + return v + 10; +}); + +assert.sameValue(result, target); +assert.sameValue(result.length, 0); + +reportCompare(0, 0); -- cgit v1.2.3