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Edit File: object-literal-overwrite.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. // Check that constants and computed properties are overwriting each other // correctly, i.e., the last initializer for any name is stored in the object. // Tests for the full code generator (if active). var foo1 = { bar: 6, bar: 7 }; var foo2 = { bar: function(a){}, bar: 7 }; var foo3 = { bar: function(a){}, bar: function(b){}, bar: 7 }; var foo4 = { bar: function(b){}, bar: 7, bar: function(){return 7}, }; var foo5 = { 13: function(a){}, 13: 7 } var foo6 = { 14.31: function(a){}, 14.31: 7 } var foo7 = { 15: 6, 15: 7 } assertEquals(7, foo1.bar); assertEquals(7, foo2.bar); assertEquals(7, foo3.bar); assertEquals(7, foo4.bar()); assertEquals(7, foo5[13]); assertEquals(7, foo6[14.31]); assertEquals(7, foo7[15]); // Test for the classic code generator. function fun(x) { var inner = { j: function(x) { return x; }, j: 7 }; return inner.j; } assertEquals(7, fun(7) ); // Check that the initializers of computed properties are executed, even if // no store instructions are generated for the literals. var glob1 = 0; var bar1 = { x: glob1++, x: glob1++, x: glob1++, x: 7}; assertEquals(3, glob1); var glob2 = 0; function fun2() { var r = { y: glob2++, y: glob2++, y: glob2++, y: 7}; return r.y; } var y = fun2(); assertEquals(7, y); assertEquals(3, glob2); var glob3 = 0; function fun3() { var r = { 113: glob3++, 113: glob3++, 113: glob3++, 113: 7}; return r[113]; } var y = fun3(); assertEquals(7, y); assertEquals(3, glob3);