| // Copyright (C) 2017 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-integer-indexed-exotic-objects-hasproperty-p |
| description: > |
| "Infinity" is a canonical numeric string, test with access on detached buffer. |
| info: | |
| 9.4.5.2 [[HasProperty]]( P ) |
| ... |
| 3. If Type(P) is String, then |
| a. Let numericIndex be ! CanonicalNumericIndexString(P). |
| b. If numericIndex is not undefined, then |
| i. Let buffer be O.[[ViewedArrayBuffer]]. |
| ii. If IsDetachedBuffer(buffer) is true, return false. |
| ... |
| |
| 7.1.16 CanonicalNumericIndexString ( argument ) |
| ... |
| 3. Let n be ! ToNumber(argument). |
| 4. If SameValue(! ToString(n), argument) is false, return undefined. |
| 5. Return n. |
| |
| flags: [noStrict] |
| includes: [testTypedArray.js, detachArrayBuffer.js] |
| features: [align-detached-buffer-semantics-with-web-reality, TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| let counter = 0; |
| let n = { |
| valueOf() { |
| counter++; |
| return 9; |
| } |
| }; |
| |
| assert.sameValue(counter, 0, 'The value of `counter` is 0'); |
| |
| let ta = new TA([n]); |
| |
| assert.sameValue(counter, 1, 'The value of `counter` is 1'); |
| |
| $DETACHBUFFER(ta.buffer); |
| |
| with (ta) { |
| Infinity; |
| assert.sameValue(counter, 1, 'The value of `counter` is 1'); |
| } |
| }); |