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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=77204 --- shadow/77204 2006-01-10 19:58:59.000000000 -0500 +++ shadow/77204.tmp.10273 2006-01-10 19:58:59.000000000 -0500 @@ -0,0 +1,79 @@ +Bug#: 77204 +Product: Mono: Compilers +Version: 1.1 +OS: +OS Details: +Status: NEW +Resolution: +Severity: +Priority: Wishlist +Component: C# +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: mcs permits calling instance methods on items with type void + +Description of Problem: + +The code below attempts to call a method using an instance of type void, +which is an error. There seem to be two issues here. One is that mcs +permits that code below at all. (csc rejects it with CS0023: Operator '.' +cannot be applied to operand of type 'void'.) The second problem is that +when the code produced by mcs is run, the runtime produces an error +regarding invalid IL. + + +using System; + +public class Testing +{ + public static void DoNothing() {} + + public static void Main() + { + Console.WriteLine(DoNothing().ToString()); + } +} + + +Steps to reproduce the problem: +1. mcs testvoid.cs +2. mono testvoid.exe + + +Actual Results: + +Step 1 above succeeds (should fail). + +Step 2 yields +** ERROR **: Invalid IL code at IL0005 in Testing:Main (): IL_0005: box +0x01000002 + + + +Expected Results: + + +How often does this happen? + +Always + +Additional Information: + +ildasm dump for Main(): + + .method public hidebysig static void Main() cil managed + { + .entrypoint + // Code size 21 (0x15) + .maxstack 8 + IL_0000: call void Testing::DoNothing() + IL_0005: box [mscorlib]System.Void + IL_000a: call instance string +[mscorlib]System.ValueType::ToString() + IL_000f: call void [mscorlib]System.Console::WriteLine(string) + IL_0014: ret + } // end of method Testing::Main _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
