1 files changed, 124 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/Exceptions/regress-121658.js b/js/src/tests/js1_5/Exceptions/regress-121658.js
new file mode 100644
index 000000000..8da92a7ec
--- /dev/null
+++ b/js/src/tests/js1_5/Exceptions/regress-121658.js
@@ -0,0 +1,124 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ *
+ * Date:    24 Jan 2002
+ * SUMMARY: "Too much recursion" errors should be safely caught by try...catch
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=121658
+ *
+ * In the cases below, we expect i>0. The bug was filed because we
+ * were getting i===0; i.e. |i| did not retain the value it had at the
+ * location of the error.
+ *
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = 121658;
+var msg = '"Too much recursion" errors should be safely caught by try...catch';
+var TEST_PASSED = 'i retained the value it had at location of error';
+var TEST_FAILED = 'i did NOT retain this value';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+var i;
+
+
+function f()
+{
+  ++i;
+
+  // try...catch should catch the "too much recursion" error to ensue
+  try
+  {
+    f();
+  }
+  catch(e)
+  {
+  }
+}
+
+i=0;
+f();
+status = inSection(1);
+actual = (i>0);
+expect = true;
+addThis();
+
+
+
+// Now try in function scope -
+function g()
+{
+  f();
+}
+
+i=0;
+g();
+status = inSection(2);
+actual = (i>0);
+expect = true;
+addThis();
+
+
+
+// Now try in eval scope -
+var sEval = 'function h(){++i; try{h();} catch(e){}}; i=0; h();';
+eval(sEval);
+status = inSection(3);
+actual = (i>0);
+expect = true;
+addThis();
+
+
+
+// Try in eval scope and mix functions up -
+sEval = 'function a(){++i; try{h();} catch(e){}}; i=0; a();';
+eval(sEval);
+status = inSection(4);
+actual = (i>0);
+expect = true;
+addThis();
+
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = formatThis(actual);
+  expectedvalues[UBound] = formatThis(expect);
+  UBound++;
+}
+
+
+function formatThis(bool)
+{
+  return bool? TEST_PASSED : TEST_FAILED;
+}
+
+
+function test()
+{
+  enterFunc('test');
+  printBugNumber(BUGNUMBER);
+  printStatus(msg);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}