mirror of https://github.com/tc39/test262.git
49 lines
1.5 KiB
JavaScript
49 lines
1.5 KiB
JavaScript
// Copyright (C) 2016 ecmascript_simd authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: swizzle
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description: Tests Simd swizzle.
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includes: [simdUtilities.js]
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---*/
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function testSwizzle(type) {
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assert.sameValue('function', typeof type.fn.swizzle);
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var a = createTestValue(type); // 0, 1, 2, 3, 4, 5, 6, ...
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var indices = [];
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// Identity swizzle.
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for (var i = 0; i < type.lanes; i++) indices.push(i);
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var result = type.fn.swizzle.apply(type.fn, [a].concat(indices));
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checkValue(type, result, function(index) {
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return type.fn.extractLane(a, index);
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});
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// Reverse swizzle.
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indices.reverse();
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var result = type.fn.swizzle.apply(type.fn, [a].concat(indices));
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checkValue(type, result, function(index) {
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return type.fn.extractLane(a, type.lanes - index - 1);
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});
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function testIndexCheck(index, err) {
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for (var i = 0; i < type.lanes; i++) {
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var args = [a].concat(indices);
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args[i + 1] = index;
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assert.throws(err, function() { type.fn.swizzle.apply(type.fn, args); });
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}
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}
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// RangeError
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testIndexCheck(type.lanes, RangeError);
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testIndexCheck(-1, RangeError);
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testIndexCheck(128, RangeError);
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testIndexCheck(13.37, TypeError);
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testIndexCheck(undefined, TypeError);
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testIndexCheck({}, TypeError);
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testIndexCheck('yo', TypeError);
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}
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simdTypes.filter(isNumerical).forEach(function(type) {
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testSimdFunction(type.name + ' swizzle', function() {
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testSwizzle(type);
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});
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});
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