[Mono-bugs] [Bug 59428][Nor] New - Reachability of constant switches

bugzilla-daemon@bugzilla.ximian.com bugzilla-daemon@bugzilla.ximian.com
Tue, 1 Jun 2004 23:01:09 -0400 (EDT)


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Changed by bmaurer@users.sf.net.

http://bugzilla.ximian.com/show_bug.cgi?id=59428

--- shadow/59428	2004-06-01 23:01:09.000000000 -0400
+++ shadow/59428.tmp.3221	2004-06-01 23:01:09.000000000 -0400
@@ -0,0 +1,40 @@
+Bug#: 59428
+Product: Mono: Compilers
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: C#
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: bmaurer@users.sf.net               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Reachability of constant switches
+
+class T {
+	static int Main ()
+	{
+		switch (1) {
+			case 1:
+				return 0;
+			default:
+				break;
+		}
+	}
+}
+
+Should compile. Since the switch value is constant, we only have to look at
+the `1' case. Even though the default case does not return it does not
+matter, as it cant be reached.
+
+`The statement list of a given switch section is reachable if the switch
+statement is reachable and at least one of the following is true: ... The
+switch expression is a constant value that matches a case label in the
+switch section.'
+
+From 15.7.2 The switch statement.