// 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. // Test that traps that involve walking the target object's prototype chain // don't overflow the stack when the original proxy is on that chain. (function TestGetPrototype() { var p = new Proxy({}, {}); p.__proto__ = p; try { return p.__proto__; } catch(e) { assertInstanceof(e, RangeError); } })(); (function TestSetPrototype() { var p = new Proxy({}, {}); p.__proto__ = p; try { p.__proto__ = p; } catch(e) { assertInstanceof(e, RangeError); } })(); (function TestHasProperty() { var p = new Proxy({}, {}); p.__proto__ = p; try { return Reflect.has(p, "foo"); } catch(e) { assertInstanceof(e, RangeError); } })(); (function TestSet() { var p = new Proxy({}, {}); p.__proto__ = p; try { p.foo = 1; } catch(e) { assertInstanceof(e, RangeError); } })(); (function TestGet() { var p = new Proxy({}, {}); p.__proto__ = p; try { return p.foo; } catch(e) { assertInstanceof(e, RangeError); } })(); (function TestEnumerate() { var p = new Proxy({}, {}); p.__proto__ = p; try { for (var x in p) {} } catch(e) { assertInstanceof(e, RangeError); } })(); // The following traps don't involve the target object's prototype chain; // we test them anyway for completeness. (function TestIsExtensible() { var p = new Proxy({}, {}); p.__proto__ = p; return Reflect.isExtensible(p); })(); (function TestPreventExtensions() { var p = new Proxy({}, {}); p.__proto__ = p; Reflect.preventExtensions(p); })(); (function TestGetOwnPropertyDescriptor() { var p = new Proxy({}, {}); p.__proto__ = p; return Object.getOwnPropertyDescriptor(p, "foo"); })(); (function TestDeleteProperty() { var p = new Proxy({}, {}); p.__proto__ = p; delete p.foo; })(); (function TestDefineProperty() { var p = new Proxy({}, {}); p.__proto__ = p; Object.defineProperty(p, "foo", {value: "bar"}); })(); (function TestOwnKeys() { var p = new Proxy({}, {}); p.__proto__ = p; return Reflect.ownKeys(p); })(); (function TestCall() { var p = new Proxy(function() {}, {}); p.__proto__ = p; return p(); })(); (function TestConstruct() { var p = new Proxy(function() { this.foo = 1; }, {}); p.__proto__ = p; return new p(); })();