JSTests/test262/test/built-ins/JSON/parse/reviver-object-define-prop-err.js

// 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-internalizejsonproperty
description: Abrupt completion from defining object property while reviving
info: |
  JSON.parse ( text [ , reviver ] )

  [...]
  7. If IsCallable(reviver) is true, then
     [...]
     e. Return ? InternalizeJSONProperty(root, rootName).

  Runtime Semantics: InternalizeJSONProperty ( holder, name)

  1. Let val be ? Get(holder, name).
  2. If Type(val) is Object, then
     a. Let isArray be ? IsArray(val).
     b. If isArray is true, then
        [...]
     c. Else,
        i. Let keys be ? EnumerableOwnProperties(val, "key").
        ii. For each String P in keys do,
            1. Let newElement be ? InternalizeJSONProperty(val, P).
            2. If newElement is undefined, then
               [...]
            3. Else,
               a. Perform ? CreateDataProperty(val, P, newElement).
features: [Proxy]
---*/

var badDefine = new Proxy({
  0: null
}, {
  defineProperty: function() {
    throw new Test262Error();
  }
});

assert.throws(Test262Error, function() {
  JSON.parse('["first", null]', function(_, value) {
    if (value === 'first') {
      this[1] = badDefine;
    }
    return value;
  });
});