Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 52 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/expressions/super/prop-expr-cls-this-uninit.js b/js/src/tests/test262/language/expressions/super/prop-expr-cls-this-uninit.js
new file mode 100644
index 0000000000..5e336cf3af
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/super/prop-expr-cls-this-uninit.js
@@ -0,0 +1,52 @@
+// 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-super-keyword
+es6id: 12.3.5
+description: >
+  SuperProperty evaluation when "this" binding has not been initialized
+info: |
+  [...]
+  4. If the code matched by the syntactic production that is being evaluated is
+     strict mode code, let strict be true, else let strict be false.
+  5. Return ? MakeSuperPropertyReference(propertyKey, strict).
+
+  12.3.5.3 Runtime Semantics: MakeSuperPropertyReference
+
+  1. Let env be GetThisEnvironment( ).
+  2. If env.HasSuperBinding() is false, throw a ReferenceError exception.
+  3. Let actualThis be ? env.GetThisBinding().
+
+  8.1.1.3.4 GetThisBinding
+
+  1. Let envRec be the function Environment Record for which the method was
+     invoked.
+  2. Assert: envRec.[[ThisBindingStatus]] is not "lexical".
+  3. If envRec.[[ThisBindingStatus]] is "uninitialized", throw a ReferenceError
+     exception.
+features: [class]
+---*/
+
+var caught;
+class C extends Object {
+  constructor() {
+    try {
+      super['x'];
+    } catch (err) {
+      caught = err;
+    }
+  }
+}
+
+// When the "construct" invocation completes and the "this" value is
+// uninitialized, the specification dictates that a ReferenceError must be
+// thrown. That behavior is tested elsewhere, so the error is ignored (if it is
+// produced at all).
+try {
+  new C();
+} catch (_) {}
+
+assert.sameValue(typeof caught, 'object');
+assert.sameValue(caught.constructor, ReferenceError);
+
+reportCompare(0, 0);