| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| var typedArrayConstructors = [ |
| Uint8Array, |
| Int8Array, |
| Uint16Array, |
| Int16Array, |
| Uint32Array, |
| Int32Array, |
| Uint8ClampedArray, |
| Float32Array, |
| Float64Array |
| ]; |
| |
| for (var constructor of typedArrayConstructors) { |
| let ta = new constructor([1, 2, 3]); |
| let it = ta[Symbol.iterator](); |
| let original_next = it.__proto__["next"]; |
| Object.defineProperty(it.__proto__, "next", { |
| value: function() { |
| return {value: undefined, done: true}; |
| }, |
| configurable: true |
| }); |
| assertEquals(0, constructor.from(ta).length); |
| Object.defineProperty(it.__proto__, "next", original_next); |
| } |