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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/Proxy/get/trap-is-null-target-is-proxy.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.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')
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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
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+++ 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);