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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/construct/trap-is-undefined-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/construct/trap-is-undefined-target-is-proxy.js')
-rw-r--r--js/src/tests/test262/built-ins/Proxy/construct/trap-is-undefined-target-is-proxy.js48
1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/construct/trap-is-undefined-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/construct/trap-is-undefined-target-is-proxy.js
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+++ b/js/src/tests/test262/built-ins/Proxy/construct/trap-is-undefined-target-is-proxy.js
@@ -0,0 +1,48 @@
+// 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-construct-argumentslist-newtarget
+description: >
+ If "construct" trap is null or undefined, [[Construct]] call is
+ properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
+info: |
+ [[Construct]] ( argumentsList, newTarget )
+
+ [...]
+ 4. Let target be O.[[ProxyTarget]].
+ 5. Assert: IsConstructor(target) is true.
+ 6. Let trap be ? GetMethod(handler, "construct").
+ 7. If trap is undefined, then
+ a. Return ? Construct(target, argumentsList, newTarget).
+features: [class, Proxy, Reflect, Reflect.construct]
+---*/
+
+class Foo {
+ constructor(a, b) {
+ this.sum = a + b;
+ }
+}
+
+var FooBound = Foo.bind(null, 1);
+var FooTarget = new Proxy(FooBound, {});
+var FooProxy = new Proxy(FooTarget, {
+ construct: undefined,
+});
+
+var foo = new FooBound(2);
+assert(foo instanceof Foo);
+assert.sameValue(foo.sum, 3);
+
+class Bar extends Foo {
+ get isBar() {
+ return true;
+ }
+}
+
+var bar = Reflect.construct(FooProxy, [3], Bar);
+assert(bar instanceof Bar);
+assert.sameValue(bar.sum, 4);
+assert(bar.isBar);
+
+reportCompare(0, 0);