diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
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/set/trap-is-undefined-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/set/trap-is-undefined-target-is-proxy.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/set/trap-is-undefined-target-is-proxy.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/set/trap-is-undefined-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/set/trap-is-undefined-target-is-proxy.js new file mode 100644 index 0000000000..ac2f7a8497 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/set/trap-is-undefined-target-is-proxy.js @@ -0,0 +1,54 @@ +// 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-set-p-v-receiver +description: > + If "set" trap is null or undefined, [[Set]] call is properly + forwarded to [[ProxyTarget]] (which is also a Proxy object). +info: | + [[Set]] ( P, V, Receiver ) + + [...] + 5. Let target be O.[[ProxyTarget]]. + 6. Let trap be ? GetMethod(handler, "set"). + 7. If trap is undefined, then + a. Return ? target.[[Set]](P, V, Receiver). +features: [Proxy, Reflect] +---*/ + +var func = function() {}; +var funcTarget = new Proxy(func, {}); +var funcProxy = new Proxy(funcTarget, { + set: undefined, +}); + +assert(Reflect.set(funcProxy, "prototype", null)); +assert.sameValue(func.prototype, null); + +assert(!Reflect.set(funcProxy, "length", 2)); +assert.throws(TypeError, function() { + "use strict"; + funcProxy.name = "foo"; +}); + + +var trapCalls = 0; +var target = new Proxy({}, { + set: function(_target, key) { + trapCalls++; + return key === "foo"; + }, +}); + +var proxy = new Proxy(target, { + set: undefined, +}); + +assert(Reflect.set(Object.create(proxy), "foo", 1)); +assert.sameValue(trapCalls, 1); + +assert(!Reflect.set(proxy, "bar", 2)); +assert.sameValue(trapCalls, 2); + +reportCompare(0, 0); |