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Diffstat (limited to 'js/src/tests/test262/built-ins/Proxy/getPrototypeOf/trap-is-undefined-target-is-proxy.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/getPrototypeOf/trap-is-undefined-target-is-proxy.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/getPrototypeOf/trap-is-undefined-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/getPrototypeOf/trap-is-undefined-target-is-proxy.js new file mode 100644 index 0000000000..00146ad19e --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/getPrototypeOf/trap-is-undefined-target-is-proxy.js @@ -0,0 +1,27 @@ +// 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-getprototypeof +description: > + If "getPrototypeOf" trap is null or undefined, [[GetPrototypeOf]] call + is properly forwarded to [[ProxyTarget]] (which is also a Proxy object). +info: | + [[GetPrototypeOf]] ( ) + + [...] + 4. Let target be O.[[ProxyTarget]]. + 5. Let trap be ? GetMethod(handler, "getPrototypeOf"). + 6. If trap is undefined, then + a. Return ? target.[[GetPrototypeOf]]() +features: [Proxy] +---*/ + +var arrayTarget = new Proxy([], {}); +var arrayProxy = new Proxy(arrayTarget, { + getPrototypeOf: undefined, +}); + +assert.sameValue(Object.getPrototypeOf(arrayProxy), Array.prototype); + +reportCompare(0, 0); |