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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/language/eval-code/indirect/var-env-func-init-global-update-non-configurable.js
parentInitial commit. (diff)
downloadfirefox-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/language/eval-code/indirect/var-env-func-init-global-update-non-configurable.js')
-rw-r--r--js/src/tests/test262/language/eval-code/indirect/var-env-func-init-global-update-non-configurable.js46
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diff --git a/js/src/tests/test262/language/eval-code/indirect/var-env-func-init-global-update-non-configurable.js b/js/src/tests/test262/language/eval-code/indirect/var-env-func-init-global-update-non-configurable.js
new file mode 100644
index 0000000000..0d807c3a23
--- /dev/null
+++ b/js/src/tests/test262/language/eval-code/indirect/var-env-func-init-global-update-non-configurable.js
@@ -0,0 +1,46 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-evaldeclarationinstantiation
+description: >
+ Modification of previously-existing non-configurable global property
+info: |
+ [...]
+ 15. For each production f in functionsToInitialize, do
+ a. Let fn be the sole element of the BoundNames of f.
+ b. Let fo be the result of performing InstantiateFunctionObject for f
+ with argument lexEnv.
+ c. If varEnvRec is a global Environment Record, then
+ i. Perform ? varEnvRec.CreateGlobalFunctionBinding(fn, fo, true).
+ [...]
+
+ 8.1.1.4.18 CreateGlobalFunctionBinding
+
+ [...]
+ 5. If existingProp is undefined or existingProp.[[Configurable]] is true,
+ then
+ [...]
+ 6. Else,
+ b. Let desc be the PropertyDescriptor{[[Value]]: V }.
+ 7. Perform ? DefinePropertyOrThrow(globalObject, N, desc).
+ [...]
+includes: [propertyHelper.js]
+---*/
+
+var initial;
+
+Object.defineProperty(this, 'f', {
+ enumerable: true,
+ writable: true,
+ configurable: false
+});
+
+(0,eval)('initial = f; function f() { return 2222; }');
+
+verifyEnumerable(this, 'f');
+verifyWritable(this, 'f');
+verifyNotConfigurable(this, 'f');
+assert.sameValue(typeof initial, 'function');
+assert.sameValue(initial(), 2222);
+
+reportCompare(0, 0);