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2dcc3665ab
PR-URL: https://github.com/nodejs/node/pull/28016 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
89 lines
3.0 KiB
JavaScript
89 lines
3.0 KiB
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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function tests() {
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"use strict"
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function countArgs() { return arguments.length; }
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// Array params
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assertEquals(3, countArgs(...[1, 2, 3])); // Smi
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assertEquals(4, countArgs(...[1, 2, , 3])); // HoleySmi
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assertEquals(3, countArgs(...[1.1, 2, 3])); // Double
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assertEquals(4, countArgs(...[1.1, 2, , 3])); // HoleyDouble
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assertEquals(3, countArgs(...[{valueOf: () => 0}, 1.1, '2'])); // Object
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assertEquals(3, countArgs(...Object.freeze([{valueOf: () => 0}, 1.1, '2']))); // Frozen Object
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assertEquals(3, countArgs(...Object.seal([{valueOf: () => 0}, 1.1, '2']))); // Sealed Object
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assertEquals(3, countArgs(...Object.preventExtensions([{valueOf: () => 0}, 1.1, '2']))); // Non-extensible Object
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assertEquals(
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4, countArgs(...[{valueOf: () => 0}, 1.1, , '2'])); // HoleyObject
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// Smi param
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assertThrows(() => countArgs(...1), TypeError);
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// Object param
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assertThrows(() => countArgs(...{0: 0}), TypeError);
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// Strict arguments
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assertEquals(0, countArgs(...arguments));
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}
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%PrepareFunctionForOptimization(tests);
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tests();
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tests();
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%OptimizeFunctionOnNextCall(tests);
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tests();
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function testRest(...args) {
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function countArgs() { return arguments.length; }
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assertEquals(3, countArgs(...args));
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assertEquals(4, countArgs(1, ...args));
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assertEquals(5, countArgs(1, 2, ...args));
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}
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%PrepareFunctionForOptimization(testRest);
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testRest(1, 2, 3);
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testRest(1, 2, 3);
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%OptimizeFunctionOnNextCall(testRest);
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testRest(1, 2, 3);
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function testRestAndArgs(a, b, ...args) {
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function countArgs() { return arguments.length; }
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assertEquals(1, countArgs(...args));
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assertEquals(2, countArgs(b, ...args));
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assertEquals(3, countArgs(a, b, ...args));
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assertEquals(4, countArgs(1, a, b, ...args));
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assertEquals(5, countArgs(1, 2, a, b, ...args));
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}
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%PrepareFunctionForOptimization(testRestAndArgs);
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testRestAndArgs(1, 2, 3);
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testRestAndArgs(1, 2, 3);
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%OptimizeFunctionOnNextCall(testRestAndArgs);
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testRestAndArgs(1, 2, 3);
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function testArgumentsStrict() {
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"use strict"
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function countArgs() { return arguments.length; }
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assertEquals(3, countArgs(...arguments));
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assertEquals(4, countArgs(1, ...arguments));
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assertEquals(5, countArgs(1, 2, ...arguments));
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}
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%PrepareFunctionForOptimization(testArgumentsStrict);
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testArgumentsStrict(1, 2, 3);
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testArgumentsStrict(1, 2, 3);
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%OptimizeFunctionOnNextCall(testArgumentsStrict);
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testArgumentsStrict(1, 2, 3);
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function testArgumentsSloppy() {
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function countArgs() { return arguments.length; }
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assertEquals(3, countArgs(...arguments));
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assertEquals(4, countArgs(1, ...arguments));
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assertEquals(5, countArgs(1, 2, ...arguments));
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}
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%PrepareFunctionForOptimization(testArgumentsSloppy);
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testArgumentsSloppy(1, 2, 3);
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testArgumentsSloppy(1, 2, 3);
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%OptimizeFunctionOnNextCall(testArgumentsSloppy);
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testArgumentsSloppy(1, 2, 3);
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