| // 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.map |
| description: > |
| Instance buffer can be detached during loop |
| info: | |
| 22.2.3.19 %TypedArray%.prototype.map ( callbackfn [ , thisArg ] ) |
| |
| ... |
| 8. Repeat, while k < len |
| ... |
| b. Let kValue be ? Get(O, Pk). |
| c. Let mappedValue be ? Call(callbackfn, T, « kValue, k, O »). |
| ... |
| includes: [detachArrayBuffer.js, testTypedArray.js] |
| features: [TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var loops = 0; |
| var sample = new TA(2); |
| |
| assert.throws(TypeError, function() { |
| sample.map(function() { |
| if (loops === 1) { |
| throw new Test262Error("callbackfn called twice"); |
| } |
| $DETACHBUFFER(sample.buffer); |
| loops++; |
| return 0; |
| }); |
| }); |
| |
| assert.sameValue(loops, 1, "callbackfn called only once"); |
| }); |