1 // Copyright 2013 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 var realmA = Realm.current(); 29 var realmB = Realm.create(); 30 assertEquals(0, realmA); 31 assertEquals(1, realmB); 32 33 // The global objects match the realms' this binding. 34 assertSame(this, Realm.global(realmA)); 35 assertSame(Realm.eval(realmB, "this"), Realm.global(realmB)); 36 assertFalse(this === Realm.global(realmB)); 37 38 // The global object is not accessible cross-realm. 39 var x = 3; 40 Realm.shared = this; 41 assertThrows("Realm.eval(realmB, 'x')"); 42 assertSame(undefined, Realm.eval(realmB, "this.x")); 43 assertSame(undefined, Realm.eval(realmB, "Realm.shared.x")); 44 45 Realm.eval(realmB, "Realm.global(0).y = 1"); 46 assertThrows("y"); 47 assertSame(undefined, this.y); 48 49 // Can get or set other objects' properties cross-realm. 50 var p = {a: 1}; 51 var o = {__proto__: p, b: 2}; 52 Realm.shared = o; 53 assertSame(1, Realm.eval(realmB, "Realm.shared.a")); 54 assertSame(2, Realm.eval(realmB, "Realm.shared.b")); 55 56 // Cannot get or set a prototype cross-realm. 57 assertSame(undefined, Realm.eval(realmB, "Realm.shared.__proto__")); 58 59 Realm.eval(realmB, "Realm.shared.__proto__ = {c: 3}"); 60 assertSame(1, o.a); 61 assertSame(undefined, o.c); 62
