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Edit File: assignment.js
// Copyright 2010 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Tests for compound assignments at the top level z = 2; z += 4; assertEquals(z, 6); a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); // Test compound assignments in an anonymous function with local variables. (function () { var z = 2; z += 4; assertEquals(z, 6); var a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); var b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); })(); // Test compound assignments in an anonymous function with global variables. (function () { z = 2; z += 4; assertEquals(z, 6); a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); })(); // Test compound assignments in a named function with local variables. function foo() { var z = 3; z += 4; assertEquals(z, 7); var a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); var b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } foo(); // Test compound assignments in a named function with global variables. function bar() { z = 2; z += 5; assertEquals(z, 7); a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } bar(); // Entire series of tests repeated, in loops. // ------------------------------------------- // Tests for compound assignments in a loop at the top level for (i = 0; i < 5; ++i) { z = 2; z += 4; assertEquals(z, 6); a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } // Test compound assignments in an anonymous function with local variables. (function () { for (var i = 0; i < 5; ++i) { var z = 2; z += 4; assertEquals(z, 6); var a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); var b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } })(); // Test compound assignments in an anonymous function with global variables. (function () { for (i = 0; i < 5; ++i) { z = 2; z += 4; assertEquals(z, 6); a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } })(); // Test compound assignments in a named function with local variables. function foo_loop() { for (i = 0; i < 5; ++i) { var z = 3; z += 4; assertEquals(z, 7); var a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); var b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } } foo_loop(); // Test compound assignments in a named function with global variables. function bar_loop() { for (i = 0; i < 5; ++i) { z = 2; z += 5; assertEquals(z, 7); a = new Array(10); a[2] += 7; a[2] = 15; a[2] += 2; assertEquals(17, a[2]); b = new Object(); b.foo = 5; b.foo += 12; assertEquals(17, b.foo); } } bar_loop(); // Test assignment in test context. function test_assign(x, y) { if (x = y) return x; } assertEquals(42, test_assign(0, 42)); assertEquals("undefined", typeof test_assign(42, 0)); // Test for assignment using a keyed store ic: function store_i_in_element_i_of_object_i() { var i = new Object(); i[i] = i; } // Run three times to exercise caches. store_i_in_element_i_of_object_i(); store_i_in_element_i_of_object_i(); store_i_in_element_i_of_object_i();