Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 55 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/module-code/instn-named-bndng-var.js b/js/src/tests/test262/language/module-code/instn-named-bndng-var.js
new file mode 100644
index 0000000000..0926ee998c
--- /dev/null
+++ b/js/src/tests/test262/language/module-code/instn-named-bndng-var.js
@@ -0,0 +1,55 @@
+// |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: Imported binding reflects state of exported `var` binding
+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
+           [...]
+        c. Else,
+           i. Let resolution be ?
+              importedModule.ResolveExport(in.[[ImportName]], « », « »).
+           ii. If resolution is null or resolution is "ambiguous", throw a
+               SyntaxError exception.
+           iii. Call envRec.CreateImportBinding(in.[[LocalName]],
+                resolution.[[Module]], resolution.[[BindingName]]).
+    [...]
+    14. Let declaredVarNames be a new empty List.
+    15. For each element d in varDeclarations do
+        a. For each element dn of the BoundNames of d do
+           i. If dn is not an element of declaredVarNames, then
+              1. Perform ! envRec.CreateMutableBinding(dn, false).
+              2. Call envRec.InitializeBinding(dn, undefined).
+              3. Append dn to declaredVarNames.
+    [...]
+
+    8.1.1.5.5 CreateImportBinding
+
+    [...]
+    5. Create an immutable indirect binding in envRec for N that references M
+       and N2 as its target binding and record that the binding is initialized.
+    6. Return NormalCompletion(empty).
+flags: [module]
+---*/
+
+assert.sameValue(
+  y,
+  undefined,
+  'binding is initialized to `undefined` prior to module evaulation'
+);
+
+assert.throws(TypeError, function() {
+  y = null;
+}, 'binding rejects assignment');
+
+assert.sameValue(y, undefined, 'binding value is immutable');
+
+import { x as y } from './instn-named-bndng-var.js';
+export var x = 23;
+
+reportCompare(0, 0);