Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 44 insertions, 0 deletions

diff --git a/js/src/tests/non262/strict/this-for-function-expression-recursion.js b/js/src/tests/non262/strict/this-for-function-expression-recursion.js
new file mode 100644
index 0000000000..197b4646cf
--- /dev/null
+++ b/js/src/tests/non262/strict/this-for-function-expression-recursion.js
@@ -0,0 +1,44 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var gTestfile = 'this-for-function-expression-recursion.js';
+var BUGNUMBER = 611276;
+var summary = "JSOP_CALLEE should push undefined, not null, for this";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+// Calling a named function expression (not function statement) uses the
+// JSOP_CALLEE opcode.  This opcode pushes its own |this|, distinct from the
+// normal call path; verify that that |this| value is properly |undefined|.
+
+var calleeThisFun =
+  function calleeThisFun(recurring)
+  {
+    if (recurring)
+      return this;
+    return calleeThisFun(true);
+  };
+assertEq(calleeThisFun(false), this);
+
+var calleeThisStrictFun =
+  function calleeThisStrictFun(recurring)
+  {
+    "use strict";
+    if (recurring)
+      return this;
+    return calleeThisStrictFun(true);
+  };
+assertEq(calleeThisStrictFun(false), undefined);
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("All tests passed!");