1 // Copyright 2008 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --allow-natives-syntax 29 30 // Make sure that we can introduce global variables that shadow even 31 // READ_ONLY variables in the prototype chain. 32 var NONE = 0; 33 var READ_ONLY = 1; 34 35 // Use DeclareGlobal... 36 %AddNamedProperty(this.__proto__, "a", 1234, NONE); 37 assertEquals(1234, a); 38 eval("var a = 5678;"); 39 assertEquals(5678, a); 40 41 %AddNamedProperty(this.__proto__, "b", 1234, NONE); 42 assertEquals(1234, b); 43 eval("var b = 5678;"); 44 assertEquals(5678, b); 45 46 %AddNamedProperty(this.__proto__, "c", 1234, READ_ONLY); 47 assertEquals(1234, c); 48 eval("var c = 5678;"); 49 assertEquals(5678, c); 50 51 %AddNamedProperty(this.__proto__, "d", 1234, READ_ONLY); 52 assertEquals(1234, d); 53 eval("var d = 5678;"); 54 assertEquals(5678, d); 55 56 // Use DeclareContextSlot... 57 %AddNamedProperty(this.__proto__, "x", 1234, NONE); 58 assertEquals(1234, x); 59 eval("with({}) { var x = 5678; }"); 60 assertEquals(5678, x); 61 62 %AddNamedProperty(this.__proto__, "y", 1234, NONE); 63 assertEquals(1234, y); 64 eval("with({}) { var y = 5678; }"); 65 assertEquals(5678, y); 66 67 %AddNamedProperty(this.__proto__, "z", 1234, READ_ONLY); 68 assertEquals(1234, z); 69 eval("with({}) { var z = 5678; }"); 70 assertEquals(5678, z); 71 72 %AddNamedProperty(this.__proto__, "w", 1234, READ_ONLY); 73 assertEquals(1234, w); 74 eval("with({}) { var w = 5678; }"); 75 assertEquals(5678, w); 76
