| // 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%.from |
| description: > |
| Assert mapfn `this` without thisArg |
| info: | |
| 22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] ) |
| |
| ... |
| 5. If thisArg was supplied, let T be thisArg; else let T be undefined. |
| ... |
| 10. Repeat, while k < len |
| ... |
| c. If mapping is true, then |
| i. Let mappedValue be ? Call(mapfn, T, « kValue, k »). |
| ... |
| includes: [testTypedArray.js] |
| flags: [noStrict] |
| features: [TypedArray] |
| ---*/ |
| |
| var source = [42, 43]; |
| var global = this; |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var results = []; |
| var mapfn = function() { |
| results.push(this); |
| }; |
| |
| TA.from(source, mapfn); |
| |
| assert.sameValue(results.length, 2); |
| assert.sameValue(results[0], global); |
| assert.sameValue(results[1], global); |
| }); |
