mirror of https://github.com/tc39/test262.git
46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-json.stringify
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es6id: 24.3.2
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description: Proxy of an array is treated as an array
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info: |
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[...]
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12. Return ? SerializeJSONProperty(the empty String, wrapper).
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24.3.2.1 Runtime Semantics: SerializeJSONProperty
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[...]
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10. If Type(value) is Object and IsCallable(value) is false, then
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a. Let isArray be ? IsArray(value).
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b. If isArray is true, return ? SerializeJSONArray(value).
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c. Else, return ? SerializeJSONObject(value).
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[...]
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7.2.2 IsArray
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[...]
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3. If argument is a Proxy exotic object, then
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a. If the value of the [[ProxyHandler]] internal slot of argument is null,
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throw a TypeError exception.
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b. Let target be the value of the [[ProxyTarget]] internal slot of
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argument.
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c. Return ? IsArray(target).
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features: [Proxy]
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---*/
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var objectProxy = new Proxy({}, {});
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var arrayProxy = new Proxy([], {});
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var arrayProxyProxy = new Proxy(arrayProxy, {});
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assert.sameValue(JSON.stringify(objectProxy), '{}');
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assert.sameValue(JSON.stringify(arrayProxy), '[]', 'proxy for an array');
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assert.sameValue(
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JSON.stringify([[arrayProxy]]), '[[[]]]', 'proxy for an array (nested)'
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);
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assert.sameValue(
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JSON.stringify([[arrayProxyProxy]]),
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'[[[]]]',
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'proxy for a proxy for an array (nested)'
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);
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