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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/trap-is-undefined-target-is-proxy.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/trap-is-undefined-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/trap-is-undefined-target-is-proxy.js new file mode 100644 index 0000000000..38b797de3a --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/getOwnPropertyDescriptor/trap-is-undefined-target-is-proxy.js @@ -0,0 +1,53 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-proxy-object-internal-methods-and-internal-slots-getownproperty-p +description: > + If "getOwnPropertyDescriptor" trap is null or undefined, [[GetOwnProperty]] + call is properly forwarded to [[ProxyTarget]] (which is also a Proxy object). +info: | + [[GetOwnProperty]] ( P ) + + [...] + 5. Let target be O.[[ProxyTarget]]. + 6. Let trap be ? GetMethod(handler, "getOwnPropertyDescriptor"). + 7. If trap is undefined, then + a. Return ? target.[[GetOwnProperty]](P). +includes: [propertyHelper.js] +features: [Proxy] +---*/ + +var arrayTarget = new Proxy([42], {}); +var arrayProxy = new Proxy(arrayTarget, { + getOwnPropertyDescriptor: undefined, +}); + +verifyProperty(arrayProxy, "0", { + value: 42, + writable: true, + enumerable: true, + configurable: true, +}); + +verifyProperty(arrayProxy, "length", { + value: 1, + // writable: true, + enumerable: false, + configurable: false, +}); + + +var regExpTarget = new Proxy(/(?:)/, {}); +var regExpProxy = new Proxy(regExpTarget, { + getOwnPropertyDescriptor: undefined, +}); + +verifyProperty(regExpProxy, "lastIndex", { + value: 0, + writable: true, + enumerable: false, + configurable: false, +}); + +reportCompare(0, 0); |