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// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-internalizejsonproperty
description: >
[[Delete]] does not remove non-configurable properties.
If [[Delete]] is unsuccessful, no exception is thrown.
info: |
JSON.parse ( text [ , reviver ] )
[...]
7. If IsCallable(reviver) is true, then
[...]
d. Return ? InternalizeJSONProperty(root, rootName).
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 ? EnumerableOwnPropertyNames(val, "key").
ii. For each String P in keys, do
1. Let newElement be ? InternalizeJSONProperty(val, P).
2. If newElement is undefined, then
a. Perform ? val.[[Delete]](P).
OrdinaryDelete ( O, P )
[...]
4. If desc.[[Configurable]] is true, then
a. Remove the own property with name P from O.
---*/
var json = '{"a": 1, "b": 2}';
var obj = JSON.parse(json, function(key, value) {
if (key === 'a') {
Object.defineProperty(this, 'b', {configurable: false});
}
if (key === 'b') return;
return value;
});
assert.sameValue(obj.a, 1);
assert(obj.hasOwnProperty('b'));
assert.sameValue(obj.b, 2);
reportCompare(0, 0);
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