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Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/find/BigInt/predicate-may-detach-buffer.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/find/BigInt/predicate-may-detach-buffer.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/find/BigInt/predicate-may-detach-buffer.js b/js/src/tests/test262/built-ins/TypedArray/prototype/find/BigInt/predicate-may-detach-buffer.js new file mode 100644 index 0000000000..0cb8181ca1 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/find/BigInt/predicate-may-detach-buffer.js @@ -0,0 +1,59 @@ +// 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%.prototype.find +description: > + Predicate may detach the buffer +info: | + %TypedArray%.prototype.find (predicate [ , thisArg ] ) + + %TypedArray%.prototype.find is a distinct function that implements the same + algorithm as Array.prototype.find as defined in 22.1.3.8 + + ... + + However, such optimization must not introduce any observable changes in the + specified behaviour of the algorithm and must take into account the + possibility that calls to predicate may cause the this value to become + detached. + + + Array.prototype.find ( predicate[ , thisArg ] ) + + Let O be ? ToObject(this value). + Let len be ? LengthOfArrayLike(O). + If IsCallable(predicate) is false, throw a TypeError exception. + Let k be 0. + Repeat, while k < len, + Let Pk be ! ToString(𝔽(k)). + Let kValue be ? Get(O, Pk). + Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)). + If testResult is true, return kValue. + Set k to k + 1. + Return undefined. + + IntegerIndexedElementGet ( O, index ) + + ... + Let buffer be the value of O's [[ViewedArrayBuffer]] internal slot. + If IsDetachedBuffer(buffer) is true, return undefined. + +includes: [testBigIntTypedArray.js, detachArrayBuffer.js] +features: [BigInt, TypedArray] +---*/ + +testWithBigIntTypedArrayConstructors(function(TA) { + var loops = 0; + var sample = new TA(2); + + sample.find(function() { + if (loops === 0) { + $DETACHBUFFER(sample.buffer); + } + loops++; + }); + + assert.sameValue(loops, 2); +}); + +reportCompare(0, 0); |