1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/eval-code/direct/func-switch-case-eval-func-existing-fn-no-init.js b/js/src/tests/test262/annexB/language/eval-code/direct/func-switch-case-eval-func-existing-fn-no-init.js
new file mode 100644
index 0000000000..f4ecb2da58
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/eval-code/direct/func-switch-case-eval-func-existing-fn-no-init.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/eval-func-existing-fn-no-init.case
+// - src/annex-b-fns/eval-func/direct-switch-case.template
+/*---
+description: Existing variable binding is not modified (Function declaration in the `case` clause of a `switch` statement in eval code)
+esid: sec-web-compat-evaldeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+    B.3.3.3 Changes to EvalDeclarationInstantiation
+
+    [...]
+    b. When the FunctionDeclaration f is evaluated, perform the following steps
+       in place of the FunctionDeclaration Evaluation algorithm provided in
+       14.1.21:
+       i. Let genv be the running execution context's VariableEnvironment.
+       ii. Let genvRec be genv's EnvironmentRecord.
+       iii. Let benv be the running execution context's LexicalEnvironment.
+       iv. Let benvRec be benv's EnvironmentRecord.
+       v. Let fobj be ! benvRec.GetBindingValue(F, false).
+       vi. Perform ? genvRec.SetMutableBinding(F, fobj, false).
+       vii. Return NormalCompletion(empty). 
+---*/
+var init;
+
+(function() {
+  eval(
+    'init = f;switch (1) {' +
+    '  case 1:' +
+    '    function f() { return "inner declaration"; }' +
+    '}\
+    function f() {\
+      return "outer declaration";\
+    }'
+  );
+}());
+
+assert.sameValue(init(), 'outer declaration');
+
+reportCompare(0, 0);