Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 41 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/expressions/call/scope-lex-open.js b/js/src/tests/test262/language/expressions/call/scope-lex-open.js
new file mode 100644
index 0000000000..3000974cfe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/call/scope-lex-open.js
@@ -0,0 +1,41 @@
+// 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-ecmascript-function-objects-call-thisargument-argumentslist
+description: >
+    Creation of new variable environment for the function parameters and body
+    (as distinct from that for the function's BindingIdentifier)
+info: |
+    [...]
+    3. Let callerContext be the running execution context.
+    4. Let calleeContext be PrepareForOrdinaryCall(F, undefined).
+    [...]
+
+    9.2.1.1 PrepareForOrdinaryCall
+
+    [...]
+    8. Let localEnv be NewFunctionEnvironment(F, newTarget).
+    9. Set the LexicalEnvironment of calleeContext to localEnv.
+    10. Set the VariableEnvironment of calleeContext to localEnv.
+    [...]
+features: [let]
+---*/
+
+var n = 'outside';
+var probeBefore = function() { return n; };
+var probeInside;
+
+// This test intentionally elides parameter expressions because their presence
+// triggers the creation of an additional LexicalEnvironment dedicated to the
+// function body (see sec-functiondeclarationinstantiation)
+var func = function n() {
+  let n = 'inside';
+  probeInside = function() { return n; };
+};
+
+func();
+
+assert.sameValue(probeBefore(), 'outside');
+assert.sameValue(probeInside(), 'inside');
+
+reportCompare(0, 0);