1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/function-code/if-decl-no-else-func-existing-block-fn-update.js b/js/src/tests/test262/annexB/language/function-code/if-decl-no-else-func-existing-block-fn-update.js
new file mode 100644
index 0000000000..6b22f948b0
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/function-code/if-decl-no-else-func-existing-block-fn-update.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/func-existing-block-fn-update.case
+// - src/annex-b-fns/func/if-decl-no-else.template
+/*---
+description: Variable-scoped binding is updated (IfStatement without an else clause in function scope)
+esid: sec-functiondeclarations-in-ifstatement-statement-clauses
+flags: [generated, noStrict]
+info: |
+    The following rules for IfStatement augment those in 13.6:
+
+    IfStatement[Yield, Return]:
+        if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else Statement[?Yield, ?Return]
+        if ( Expression[In, ?Yield] ) Statement[?Yield, ?Return] else FunctionDeclaration[?Yield]
+        if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield] else FunctionDeclaration[?Yield]
+        if ( Expression[In, ?Yield] ) FunctionDeclaration[?Yield]
+
+
+    B.3.3.1 Changes to FunctionDeclarationInstantiation
+
+    [...]
+    3. When the FunctionDeclaration f is evaluated, perform the following steps
+       in place of the FunctionDeclaration Evaluation algorithm provided in
+       14.1.21:
+       a. Let fenv be the running execution context's VariableEnvironment.
+       b. Let fenvRec be fenv's EnvironmentRecord.
+       c. Let benv be the running execution context's LexicalEnvironment.
+       d. Let benvRec be benv's EnvironmentRecord.
+       e. Let fobj be ! benvRec.GetBindingValue(F, false).
+       f. Perform ! fenvRec.SetMutableBinding(F, fobj, false).
+       g. Return NormalCompletion(empty). 
+---*/
+var updated;
+
+(function() {
+  {
+    function f() {
+      return 'first declaration';
+    }
+  }
+
+  if (true) function f() { return 'second declaration'; }
+
+  updated = f;
+}());
+
+assert.sameValue(typeof updated, 'function');
+assert.sameValue(updated(), 'second declaration');
+
+reportCompare(0, 0);