Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 57 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/statements/class/elements/privatefieldget-typeerror-2.js b/js/src/tests/test262/language/statements/class/elements/privatefieldget-typeerror-2.js
new file mode 100644
index 0000000000..1a36416cfa
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/elements/privatefieldget-typeerror-2.js
@@ -0,0 +1,57 @@
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: TypeError when referenced private field cannot be found in `this`'s [[PrivateFieldValues]]
+esid: sec-getvalue
+info: |
+  GetValue ( V )
+    ...
+    5. If IsPropertyReference(V), then
+      ...
+      b. If IsPrivateReference(V), then
+        i. Let env be the running execution context's PrivateNameEnvironment.
+        ii. Let field be ? ResolveBinding(GetReferencedName(V), env).
+        iii. Assert: field is a Private Name.
+        iv. Return ? PrivateFieldGet(field, base).
+
+  PrivateFieldGet (P, O )
+    1. Assert: P is a Private Name value.
+    2. If O is not an object, throw a TypeError exception.
+    3. Let entry be PrivateFieldFind(P, O).
+    4. If entry is empty, throw a TypeError exception.
+
+  PrivateFieldFind (P, O)
+    1. Assert: P is a Private Name value.
+    2. Assert: O is an object with a [[PrivateFieldValues]] internal slot.
+    3. For each element entry in O.[[PrivateFieldValues]],
+      a. If entry.[[PrivateName]] is P, return entry.
+    4. Return empty.
+
+features: [class, class-fields-private]
+---*/
+
+class Outer {
+  #x = 42;
+
+  innerclass() {
+
+    // create class within in Outerclass -- the PrivateNameEnvironment binding for
+    // private field `#x` is resolvable.
+    return class {
+      f() {
+        return this.#x;
+      }
+    }
+  }
+}
+
+var Inner = new Outer().innerclass();
+var i = new Inner();
+
+assert.throws(TypeError, function() {
+  // when f() is called, the private field will not be found in Inner's `this`
+  i.f();
+})
+
+reportCompare(0, 0);