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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
// Do not read out the prototype from a cross-realm object.
var realm = Realm.create();
__proto__ = {};
assertEquals(null,
Realm.eval(realm, "3; Reflect.getPrototypeOf(Realm.global(0))"));
assertFalse(Realm.eval(realm, "3; Realm.global(0) instanceof Object"));
__proto__ = new Proxy({}, { getPrototypeOf() { assertUnreachable() } });
assertEquals(null,
Realm.eval(realm, "1; Reflect.getPrototypeOf(Realm.global(0))"));
assertFalse(Realm.eval(realm, "1; Realm.global(0) instanceof Object"));
// Test that the instannceof check works in optimized code.
var test = Realm.eval(realm,
"()=>{1.1; return Realm.global(0) instanceof Object; }");
assertFalse(test());
test();
test();
%OptimizeFunctionOnNextCall(test);
assertFalse(test());
__proto__ = {};
__proto__ = new Proxy({}, { get(t, p, r) { assertUnreachable() } });
assertEquals(null,
Realm.eval(realm, "2; Reflect.getPrototypeOf(Realm.global(0))"));
assertFalse(Realm.eval(realm, "2; Realm.global(0) instanceof Object"));
__proto__ = {};
__proto__.__proto__ = new Proxy({}, {
getPrototypeOf() { assertUnreachable() }
});
assertEquals(null,
Realm.eval(realm, "4; Reflect.getPrototypeOf(Realm.global(0))"));
assertFalse(Realm.eval(realm, "4; Realm.global(0) instanceof Object"));
// 2-level proxy indirection
__proto__ = {};
__proto__ = new Proxy({},
new Proxy({}, {
get() { assertUnreachable() }
})
);
assertEquals(null,
Realm.eval(realm, "5; Reflect.getPrototypeOf(Realm.global(0))"));
assertFalse(Realm.eval(realm, "5; Realm.global(0) instanceof Object"));
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