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Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/reverse/get-length-uses-internal-arraylength.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/reverse/get-length-uses-internal-arraylength.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/reverse/get-length-uses-internal-arraylength.js b/js/src/tests/test262/built-ins/TypedArray/prototype/reverse/get-length-uses-internal-arraylength.js new file mode 100644 index 0000000000..5cead93847 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/reverse/get-length-uses-internal-arraylength.js @@ -0,0 +1,44 @@ +// 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.reverse +description: Get "length" uses internal ArrayLength +info: | + 22.2.3.22 %TypedArray%.prototype.reverse ( ) + + %TypedArray%.prototype.reverse is a distinct function that implements the same + algorithm as Array.prototype.reverse as defined in 22.1.3.21 except that the + this object's [[ArrayLength]] internal slot is accessed in place of performing + a [[Get]] of "length". + + 22.1.3.21 Array.prototype.reverse ( ) + + 1. Let O be ? ToObject(this value). + 2. Let len be ? ToLength(? Get(O, "length")). + ... +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +var getCalls = 0; +var desc = { + get: function getLen() { + getCalls++; + return 0; + } +}; + +Object.defineProperty(TypedArray.prototype, "length", desc); + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA([42, 43]); + + Object.defineProperty(TA.prototype, "length", desc); + Object.defineProperty(sample, "length", desc); + + sample.reverse(); + + assert.sameValue(getCalls, 0, "ignores length properties"); +}); + +reportCompare(0, 0); |