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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/same-ctor-buffer-ctor-species-null.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/same-ctor-buffer-ctor-species-null.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/same-ctor-buffer-ctor-species-null.js new file mode 100644 index 0000000000..afc55e0dba --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/same-ctor-buffer-ctor-species-null.js @@ -0,0 +1,51 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-typedarray-typedarray +description: > + Use default ArrayBuffer constructor on null buffer.constructor.@@species +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 17. If SameValue(elementType, srcType) is true, then + a. Let data be ? CloneArrayBuffer(srcData, srcByteOffset). + ... + + 24.1.1.4 CloneArrayBuffer ( srcBuffer, srcByteOffset [ , cloneConstructor ] ) + + ... + 2. If cloneConstructor is not present, then + a. Let cloneConstructor be ? SpeciesConstructor(srcBuffer, %ArrayBuffer%). + ... + + 7.3.20 SpeciesConstructor ( O, defaultConstructor ) + + ... + 5. Let S be ? Get(C, @@species). + 6. If S is either undefined or null, return defaultConstructor. + ... +includes: [testBigIntTypedArray.js] +features: [BigInt, Symbol.species, TypedArray] +---*/ + +testWithBigIntTypedArrayConstructors(function(TA) { + var sample = new TA(4); + var ctor = {}; + + sample.buffer.constructor = ctor; + + ctor[Symbol.species] = null; + var typedArray = new TA(sample); + assert.sameValue( + Object.getPrototypeOf(typedArray.buffer), + ArrayBuffer.prototype, + "buffer ctor is not called when species is null" + ); +}); + +reportCompare(0, 0); |