reviver-object-own-keys-err.js (966B)
1 // Copyright (C) 2016 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 esid: sec-internalizejsonproperty 5 description: Abrupt completion from object property enumeration while reviving 6 info: | 7 JSON.parse ( text [ , reviver ] ) 8 9 [...] 10 7. If IsCallable(reviver) is true, then 11 [...] 12 e. Return ? InternalizeJSONProperty(root, rootName). 13 14 Runtime Semantics: InternalizeJSONProperty ( holder, name) 15 16 1. Let val be ? Get(holder, name). 17 2. If Type(val) is Object, then 18 a. Let isArray be ? IsArray(val). 19 b. If isArray is true, then 20 [...] 21 c. Else, 22 i. Let keys be ? EnumerableOwnProperties(val, "key"). 23 features: [Proxy] 24 ---*/ 25 26 var badKeys = new Proxy({}, { 27 ownKeys: function() { 28 throw new Test262Error(); 29 } 30 }); 31 32 assert.throws(Test262Error, function() { 33 JSON.parse('[0,0]', function() { 34 this[1] = badKeys; 35 }); 36 }); 37 38 reportCompare(0, 0);