Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/statements/switch/scope-var-none-case.js b/js/src/tests/test262/language/statements/switch/scope-var-none-case.js
new file mode 100644
index 0000000000..0b7767a7e0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/switch/scope-var-none-case.js
@@ -0,0 +1,34 @@
+// 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-switch-statement-runtime-semantics-evaluation
+description: Retainment of existing variable environment (`case` clause)
+info: |
+    1. Let exprRef be the result of evaluating Expression.
+    2. Let switchValue be ? GetValue(exprRef).
+    3. Let oldEnv be the running execution context's LexicalEnvironment.
+    4. Let blockEnv be NewDeclarativeEnvironment(oldEnv).
+    5. Perform BlockDeclarationInstantiation(CaseBlock, blockEnv).
+    6. Set the running execution context's LexicalEnvironment to blockEnv.
+    7. Let R be the result of performing CaseBlockEvaluation of CaseBlock with
+      argument switchValue.
+    [...]
+flags: [noStrict]
+---*/
+
+var probeExpr, probeSelector, probeStmt;
+var probeBefore = function() { return x; };
+
+switch (eval('var x = 1;'), probeExpr = function() { return x; }, null) {
+  case eval('var x = 2;'), probeSelector = function() { return x; }, null:
+    probeStmt = function() { return x; };
+    var x = 3;
+}
+
+assert.sameValue(probeBefore(), 3, 'reference preceding statement');
+assert.sameValue(probeExpr(), 3, 'reference from first Expression');
+assert.sameValue(probeSelector(), 3, 'reference from "selector" Expression');
+assert.sameValue(probeStmt(), 3, 'reference from Statement position');
+assert.sameValue(x, 3, 'reference following statement');
+
+reportCompare(0, 0);