| // 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.reduceright |
| description: > |
| Instance buffer can be detached during loop |
| info: | |
| 22.2.3.21 %TypedArray%.prototype.reduceRight ( callbackfn [ , initialValue ] ) |
| |
| %TypedArray%.prototype.reduceRight is a distinct function that implements the |
| same algorithm as Array.prototype.reduceRight as defined in 22.1.3.20 except |
| that the this object's [[ArrayLength]] internal slot is accessed in place of |
| performing a [[Get]] of "length". |
| |
| 22.1.3.20 Array.prototype.reduceRight ( callbackfn [ , initialValue ] ) |
| |
| ... |
| 8. Repeat, while k < len |
| ... |
| c. If kPresent is true, then |
| ... |
| i. Let accumulator be ? Call(callbackfn, undefined, « accumulator, kValue, |
| k, O »). |
| ... |
| includes: [detachArrayBuffer.js, testBigIntTypedArray.js] |
| features: [BigInt, TypedArray] |
| ---*/ |
| |
| testWithBigIntTypedArrayConstructors(function(TA) { |
| var loops = 0; |
| var sample = new TA(2); |
| |
| assert.throws(TypeError, function() { |
| sample.reduceRight(function() { |
| if (loops === 1) { |
| throw new Test262Error("callbackfn called twice"); |
| } |
| $DETACHBUFFER(sample.buffer); |
| loops++; |
| }, 0); |
| }); |
| |
| assert.sameValue(loops, 1, "callbackfn called only once"); |
| }); |