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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=79088 --- shadow/79088 2006-08-16 14:58:10.000000000 -0400 +++ shadow/79088.tmp.17410 2006-08-16 14:58:10.000000000 -0400 @@ -0,0 +1,79 @@ +Bug#: 79088 +Product: Mono: Compilers +Version: 1.1 +OS: +OS Details: Ububtu 6.06 +Status: NEW +Resolution: +Severity: +Priority: Major +Component: C# +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: Null reference exception during compilation + +Description of Problem: + +Get an unhandled System.NullReferenceException when compiling this simple +example: + +test.cs: + +namespace Test { + public class A <TA, TB> where TA: A <TA, TB> where TB: B <TA, TB> { + } + public class B <TA, TB> where TA: A <TA, TB> where TB: B <TA, TB> { + } +} + +Steps to reproduce the problem: +1. Compile using the command: + + gmcs -target:library -warn:4 -warnaserror test.cs +2. Er... +3. That's it! + +Actual Results: + +Unhandled Exception: System.NullReferenceException: Object reference not +set to an instance of an object +in <0x00376> Mono.CSharp.ConstraintChecker:CheckConstraints +(Mono.CSharp.EmitContext ec, Int32 index) +in <0x00018> Mono.CSharp.ConstraintChecker:CheckConstraints +(Mono.CSharp.EmitContext ec) +in <0x00035> Mono.CSharp.ConstraintChecker:CheckConstraints +(Mono.CSharp.EmitContext ec, System.Type gt, System.Type[] gen_params, +System.Type[] atypes, Location loc) +in <0x0001a> Mono.CSharp.ConstructedType:CheckConstraints +(Mono.CSharp.EmitContext ec) +in <0x0016c> Mono.CSharp.Expression:ResolveAsTypeTerminal +(Mono.CSharp.EmitContext ec, Boolean silent) +in <0x00010> Mono.CSharp.Expression:ResolveAsTypeTerminal +(Mono.CSharp.EmitContext ec) +in <0x0001c> Mono.CSharp.TypeExpr:ResolveType (Mono.CSharp.EmitContext ec) +in <0x004af> Mono.CSharp.Constraints:ResolveTypes (Mono.CSharp.EmitContext ec) +in <0x0001d> Mono.CSharp.TypeParameter:ResolveType (Mono.CSharp.EmitContext ec) +in <0x0003f> Mono.CSharp.TypeParameter:DefineType (Mono.CSharp.EmitContext +ec, System.Reflection.Emit.MethodBuilder builder, +System.Reflection.MethodInfo implementing, Boolean is_override) +in <0x00013> Mono.CSharp.TypeParameter:DefineType (Mono.CSharp.EmitContext ec) +in <0x002cc> Mono.CSharp.TypeContainer:ResolveType () +in <0x000d3> Mono.CSharp.RootContext:PopulateTypes () +in <0x009b1> Mono.CSharp.Driver:MainDriver (System.String[] args) +in <0x00051> Mono.CSharp.Driver:Main (System.String[] args) + +Expected Results: + +Clean compile with no errors. + +How often does this happen? + +Every time. + +Additional Information: + +Compiles clean using Microsoft C# compiler with same options. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
