[Mono-bugs] [Bug 82717][Nor] New - The compiler fails because of if/foreach scope bug

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Thu Sep 6 09:43:18 EDT 2007

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Changed by anders at iola.dk.


--- shadow/82717	2007-09-06 09:43:18.000000000 -0400
+++ shadow/82717.tmp.4870	2007-09-06 09:43:18.000000000 -0400
@@ -0,0 +1,58 @@
+Bug#: 82717
+Product: Mono: Compilers
+Version: 1.2
+OS Details: 
+Status: NEW   
+Priority: Normal
+Component: C#
+AssignedTo: rharinath at novell.com                            
+ReportedBy: anders at iola.dk               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+Summary: The compiler fails because of if/foreach scope bug
+Description of Problem:
+The following code (although a little ugly) should compile:
+if (e.Event.Key == Gdk.Key.Escape) // cancel
+	foreach (Gtk.Widget w in representation)
+		if (w.Name == "new")
+			w.Destroy(); // bye bye
+else if (e.Event.Key == Gdk.Key.Return) // ok
+	foreach (Gtk.Widget w in representation)
+		if (w.Name == "new") {
+			string text = ((Gtk.Entry)w).Text;
+			if (text != "")
+				representation.Add(new Gtk.Button(text));
+			w.Destroy(); // bye bye
+		}
+Steps to reproduce the problem:
+1. Compile the above lines of code
+Actual Results:
+Compile error:
+A local variable named `w' cannot be declared in this scope because it
+would give a different meaning to `w', which is already used in a `parent'
+scope to denote something else(CS0136)
+Expected Results:
+Compiles fine since the second foreach w is in a different if block than
+the first foreach w.
+How often does this happen? 
+Additional Information:
+Using Mono

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