// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-json.parse es6id: 24.3.1 description: Behavior when revived value is a Proxy exotic object info: | [...] 7. If IsCallable(reviver) is true, then a. Let root be ObjectCreate(%ObjectPrototype%). b. Let rootName be the empty String. c. Let status be CreateDataProperty(root, rootName, unfiltered). d. Assert: status is true. e. Return ? InternalizeJSONProperty(root, rootName). 24.3.1.1 Runtime Semantics: InternalizeJSONProperty [...] 2. If Type(val) is Object, then a. Let isArray be ? IsArray(val). b. If isArray is true, then [...] c. Else, [...] 7.2.2 IsArray [...] 3. If argument is a Proxy exotic object, then a. If the value of the [[ProxyHandler]] internal slot of argument is null, throw a TypeError exception. b. Let target be the value of the [[ProxyTarget]] internal slot of argument. c. Return ? IsArray(target). features: [Proxy] ---*/ var objectProxy = new Proxy({ length: 0, other: 0 }, {}); var arrayProxy = new Proxy([], {}); var arrayProxyProxy = new Proxy(arrayProxy, {}); var visitedOther, injectProxy; arrayProxy.other = 0; injectProxy = function(name, val) { if (name === 'other') { visitedOther = true; } this[1] = objectProxy; return val; }; visitedOther = false; JSON.parse('[null, null]', injectProxy); assert.sameValue(visitedOther, true, 'proxy for ordinary object'); injectProxy = function(name, val) { if (name === 'other') { visitedOther = true; } this[1] = arrayProxy; return val; }; visitedOther = false; JSON.parse('[null, null]', injectProxy); assert.sameValue(visitedOther, false, 'proxy for array'); injectProxy = function(name, val) { if (name === 'other') { visitedOther = true; } this[1] = arrayProxyProxy; return val; }; visitedOther = false; JSON.parse('[null, null]', injectProxy); assert.sameValue(visitedOther, false, 'proxy for array proxy');