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/module-code/instn-star-binding.js b/js/src/tests/test262/language/module-code/instn-star-binding.js
new file mode 100644
index 0000000000..16bcc86e9c
--- /dev/null
+++ b/js/src/tests/test262/language/module-code/instn-star-binding.js
@@ -0,0 +1,34 @@
+// |reftest| module
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Immutable binding is created for module namespace object
+esid: sec-moduledeclarationinstantiation
+info: |
+    [...]
+    12. For each ImportEntry Record in in module.[[ImportEntries]], do
+        a. Let importedModule be ? HostResolveImportedModule(module,
+           in.[[ModuleRequest]]).
+        b. If in.[[ImportName]] is "*", then
+           i. Let namespace be ? GetModuleNamespace(importedModule).
+           ii. Perform ! envRec.CreateImmutableBinding(in.[[LocalName]], true).
+           iii. Call envRec.InitializeBinding(in.[[LocalName]], namespace).
+    [...]
+flags: [module]
+---*/
+
+assert.sameValue(
+  typeof ns, 'object', 'binding is initialized prior to module evaluation'
+);
+
+var original = ns;
+
+assert.throws(TypeError, function() {
+  ns = null;
+}, 'binding rejects assignment');
+
+assert.sameValue(ns, original, 'binding value is immutable');
+
+import * as ns from './instn-star-binding.js';
+
+reportCompare(0, 0);