Initial add. Regression test for bug 222029.

js/tests/js1_5/Function/regress-222029-001.js

@@ -0,0 +1,155 @@
+/* ***** BEGIN LICENSE BLOCK *****
+* Version: NPL 1.1/GPL 2.0/LGPL 2.1
+*
+* The contents of this file are subject to the Netscape Public License
+* Version 1.1 (the "License"); you may not use this file except in
+* compliance with the License. You may obtain a copy of the License at
+* http://www.mozilla.org/NPL/
+*
+* Software distributed under the License is distributed on an "AS IS" basis,
+* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+* for the specific language governing rights and limitations under the
+* License.
+*
+* The Original Code is JavaScript Engine testing utilities.
+*
+* The Initial Developer of the Original Code is Netscape Communications Corp.
+* Portions created by the Initial Developer are Copyright (C) 2003
+* the Initial Developer. All Rights Reserved.
+*
+* Contributor(s): Adrian Herscu<bmf1972@icqmail.com>, pschwartau@netscape.com
+*
+* Alternatively, the contents of this file may be used under the terms of
+* either the GNU General Public License Version 2 or later (the "GPL"), or
+* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+* in which case the provisions of the GPL or the LGPL are applicable instead
+* of those above. If you wish to allow use of your version of this file only
+* under the terms of either the GPL or the LGPL, and not to allow others to
+* use your version of this file under the terms of the NPL, indicate your
+* decision by deleting the provisions above and replace them with the notice
+* and other provisions required by the GPL or the LGPL. If you do not delete
+* the provisions above, a recipient may use your version of this file under
+* the terms of any one of the NPL, the GPL or the LGPL.
+*
+* ***** END LICENSE BLOCK *****
+*
+*
+* Date:    13 Oct 2003
+* SUMMARY: Make our f.caller property match IE's wrt f.apply and f.call
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=222029
+*
+* Below, when gg calls f via |f.call|, we have this call chain:
+*
+*          calls                                  calls
+*   gg() --------->  Function.prototype.call()  --------->  f()
+*
+*
+* The question this bug addresses is, "What should we say |f.caller| is?"
+*
+* Before this fix, SpiderMonkey said it was |Function.prototype.call|.
+* After this fix, SpiderMonkey emulates IE and says |gg| instead.
+*
+*/
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var bug =   222029;
+var summary = "Make our f.caller property match IE's wrt f.apply and f.call";
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+
+
+function f()
+{
+  return f.caller.p ;
+}
+
+
+/*
+ * Call |f| directly
+ */
+function g()
+{
+  return f();
+}
+g.p = "hello";
+
+
+/*
+ * Call |f| via |f.call|
+ */
+function gg()
+{
+  return f.call(this);
+}
+gg.p = "hello";
+
+
+/*
+ * Call |f| via |f.apply|
+ */
+function ggg()
+{
+  return f.apply(this);
+}
+ggg.p = "hello";
+
+
+/*
+ * Shadow |p| on |Function.prototype.call|, |Function.prototype.apply|.
+ * In Sections 2 and 3 below, we no longer expect to recover this value -
+ */
+Function.prototype.call.p = "goodbye";
+Function.prototype.apply.p = "goodbye";
+
+
+
+status = inSection(1);
+actual = g();
+expect = "hello";
+addThis();
+
+status = inSection(2);
+actual = gg();
+expect = "hello";
+addThis();
+
+status = inSection(3);
+actual = ggg();
+expect = "hello";
+addThis();
+
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc('test');
+  printBugNumber(bug);
+  printStatus(summary);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}