mirror of https://github.com/tc39/test262.git
50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
// 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-serializejsonarray
|
|
description: >
|
|
Proxy of an array is treated as an array.
|
|
info: |
|
|
JSON.stringify ( value [ , replacer [ , space ] ] )
|
|
|
|
[...]
|
|
12. Return ? SerializeJSONProperty(the empty String, wrapper).
|
|
|
|
SerializeJSONProperty ( key, holder )
|
|
|
|
[...]
|
|
10. If Type(value) is Object and IsCallable(value) is false, then
|
|
a. Let isArray be ? IsArray(value).
|
|
b. If isArray is true, return ? SerializeJSONArray(value).
|
|
|
|
SerializeJSONArray ( value )
|
|
|
|
[...]
|
|
6. Let len be ? LengthOfArrayLike(value).
|
|
7. Let index be 0.
|
|
8. Repeat, while index < len
|
|
a. Let strP be ? SerializeJSONProperty(! ToString(index), value).
|
|
features: [Proxy]
|
|
---*/
|
|
|
|
var arrayProxy = new Proxy([], {
|
|
get: function(_target, key) {
|
|
if (key === 'length') return 2;
|
|
return Number(key);
|
|
},
|
|
});
|
|
|
|
assert.sameValue(
|
|
JSON.stringify(arrayProxy), '[0,1]', 'proxy for an array'
|
|
);
|
|
assert.sameValue(
|
|
JSON.stringify([[arrayProxy]]), '[[[0,1]]]', 'proxy for an array (nested)'
|
|
);
|
|
|
|
var arrayProxyProxy = new Proxy(arrayProxy, {});
|
|
assert.sameValue(
|
|
JSON.stringify([[arrayProxyProxy]]),
|
|
'[[[0,1]]]',
|
|
'proxy for a proxy for an array (nested)'
|
|
);
|