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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js new file mode 100644 index 0000000000..6d9b09e759 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js @@ -0,0 +1,50 @@ +// 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-get-p-receiver +description: > + If "get" trap is null or undefined, [[Get]] call is properly + forwarded to [[ProxyTarget]] (which is also a Proxy object). +info: | + [[Get]] ( P, Receiver ) + + [...] + 5. Let target be O.[[ProxyTarget]]. + 6. Let trap be ? GetMethod(handler, "get"). + 7. If trap is undefined, then + a. Return ? target.[[Get]](P, Receiver). +features: [Proxy, Symbol] +---*/ + +var stringTarget = new Proxy(new String("str"), {}); +var stringProxy = new Proxy(stringTarget, { + get: null, +}); + +assert.sameValue(stringProxy.length, 3); +assert.sameValue(stringProxy[0], "s"); +assert.sameValue(stringProxy[4], undefined); + + +var sym = Symbol(); +var target = new Proxy({}, { + get: function(_target, key) { + switch (key) { + case sym: return 1; + case "10": return 2; + case "foo": return 3; + } + }, +}); + +var proxy = new Proxy(target, { + get: null, +}); + +assert.sameValue(proxy[sym], 1); +assert.sameValue(proxy[10], 2); +assert.sameValue(Object.create(proxy).foo, 3); +assert.sameValue(proxy.bar, undefined); + +reportCompare(0, 0); |