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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /js/src/tests/test262/annexB/language/function-code/block-decl-func-init.js
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/annexB/language/function-code/block-decl-func-init.js')
-rw-r--r--js/src/tests/test262/annexB/language/function-code/block-decl-func-init.js38
1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/function-code/block-decl-func-init.js b/js/src/tests/test262/annexB/language/function-code/block-decl-func-init.js
new file mode 100644
index 0000000000..ce86d2797b
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/function-code/block-decl-func-init.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/func-init.case
+// - src/annex-b-fns/func/block.template
+/*---
+description: Variable binding is initialized to `undefined` in outer scope (Block statement in function scope containing a function declaration)
+esid: sec-web-compat-functiondeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+ B.3.3.1 Changes to FunctionDeclarationInstantiation
+
+ [...]
+ 2. If instantiatedVarNames does not contain F, then
+ a. Perform ! varEnvRec.CreateMutableBinding(F, false).
+ b. Perform varEnvRec.InitializeBinding(F, undefined).
+ c. Append F to instantiatedVarNames.
+ [...]
+---*/
+var init, changed;
+
+(function() {
+ init = f;
+ f = 123;
+ changed = f;
+
+ {
+ function f() { }
+ }
+
+
+}());
+
+assert.sameValue(init, undefined, 'binding is initialized to `undefined`');
+assert.sameValue(changed, 123, 'binding is mutable');
+assert.throws(ReferenceError, function() {
+ f;
+}, 'global binding is not created');
+
+reportCompare(0, 0);