diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/is-referenced-sab.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/is-referenced-sab.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/is-referenced-sab.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/is-referenced-sab.js new file mode 100644 index 0000000000..a7c268a073 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/is-referenced-sab.js @@ -0,0 +1,36 @@ +// |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// Copyright (C) 2017 Mozilla Corporation. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-typedarray-buffer-byteoffset-length +description: > + Reuse buffer argument instead of making a new clone +info: | + 22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] ) + + This description applies only if the TypedArray function is called with at + least one argument and the Type of the first argument is Object and that + object has an [[ArrayBufferData]] internal slot. + + ... + 15. Set O's [[ViewedArrayBuffer]] internal slot to buffer. + ... +includes: [testTypedArray.js] +features: [SharedArrayBuffer, TypedArray] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var bpe = TA.BYTES_PER_ELEMENT; + + var buffer = new SharedArrayBuffer(bpe); + + var ta1 = new TA(buffer); + var ta2 = new TA(buffer); + + assert.sameValue(ta1.buffer, buffer); + assert.sameValue(ta2.buffer, buffer); + assert.sameValue(ta1.buffer, ta2.buffer); +}); + +reportCompare(0, 0); |