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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/other-ctor-buffer-ctor-species-undefined.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/other-ctor-buffer-ctor-species-undefined.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/other-ctor-buffer-ctor-species-undefined.js new file mode 100644 index 0000000000..a14374aa2d --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/typedarray-arg/other-ctor-buffer-ctor-species-undefined.js @@ -0,0 +1,45 @@ +// 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 undefined 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. + + ... + 18. Else, + a. Let bufferConstructor be ? SpeciesConstructor(srcData, %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 OtherCtor = TA === BigInt64Array ? BigUint64Array : BigInt64Array; + var sample = new OtherCtor(); + var ctor = {}; + + sample.buffer.constructor = ctor; + + ctor[Symbol.species] = undefined; + var a = new TA(sample); + assert.sameValue( + Object.getPrototypeOf(a.buffer), + ArrayBuffer.prototype, + "buffer ctor is not called when species is undefined" + ); +}); + +reportCompare(0, 0); |