// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options // Copyright (C) 2024 André Bargull. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-%typedarray%.from description: > If the mapper function makes result typed array out-of-bounds, .from performs Set operation which ignores out-of-bounds indices. info: | %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] ) ... 12. Repeat, while k < len, ... c. If mapping is true, then i. Let mappedValue be ? Call(mapfn, thisArg, « kValue, 𝔽(k) »). ... e. Perform ? Set(targetObj, Pk, mappedValue, true). ... features: [TypedArray, resizable-arraybuffer] ---*/ let rab = new ArrayBuffer(3, {maxByteLength: 5}); let target = new Int8Array(rab); target.set([0, 1, 2]); let result = Int32Array.from.call(function() { return target; }, target, v => { if (v === 1) { rab.resize(1); } return v + 10; }); assert.sameValue(result, target); assert.sameValue(result.length, 1); assert.sameValue(result[0], 10); reportCompare(0, 0);