[Mono-bugs] [Bug 444673] New: error compiling nested anonymous delegates in generic class

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=444673


           Summary: error compiling nested anonymous delegates in generic
                    class
           Product: Mono: Compilers
           Version: SVN
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: daniel at hofmannmail.ath.cx
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Compiling the following piece of code with gmcs results in a compiler
exception, while csc has no complaints.

class SomeGenericClass<SomeType> {
    object someValue;
    delegate void SomeHandlerType ();
    void Invoke (SomeHandlerType h) {}
    public void FailsToCompile () {
        Invoke(delegate {
                object someObject = 1;
                Invoke (delegate {
                        someValue = someObject;
                });
            });
    }
}

The exception:

dani at kaplan:/home/dani_nobkup/tmp/swfplayground > gmcs gmcsbug.cs
-target:library
Exception caught by the compiler while emitting:
   Block that caused the problem begin at: gmcsbug.cs(6,25):
System.InvalidOperationException: can only be called in generic type
Internal compiler error at gmcsbug.cs(6,16):: exception caught while emitting
MethodBuilder [<FailsToCompile>c__AnonStorey0::<>m__0]

Unhandled Exception: System.InvalidOperationException: can only be called in
generic type
  at System.Type.GetField (System.Reflection.FieldInfo fromNoninstanciated)
[0x00000] 
  at System.Reflection.Emit.TypeBuilder.GetField (System.Type type,
System.Reflection.FieldInfo field) [0x00000] 
  at Mono.CSharp.FieldExpr.GetConstructedFieldInfo () [0x00000] 
  at Mono.CSharp.FieldExpr.EmitAssign (Mono.CSharp.EmitContext ec,
Mono.CSharp.Expression source, Boolean leave_copy, Boolean prepare_for_load)
[0x00000] 
  at Mono.CSharp.Assign.Emit (Mono.CSharp.EmitContext ec, Boolean is_statement)
[0x00000] 
  at Mono.CSharp.Assign.EmitStatement (Mono.CSharp.EmitContext ec) [0x00000] 
  at Mono.CSharp.AnonymousMethodStorey.EmitHoistedFieldsInitialization
(Mono.CSharp.EmitContext ec) [0x00000] 
  at Mono.CSharp.AnonymousMethodStorey.EmitHoistedVariables
(Mono.CSharp.EmitContext ec) [0x00000] 
  at Mono.CSharp.ExplicitBlock.Emit (Mono.CSharp.EmitContext ec) [0x00000] 
  at Mono.CSharp.ToplevelBlock.Emit (Mono.CSharp.EmitContext ec) [0x00000] 
  at Mono.CSharp.EmitContext.EmitResolvedTopBlock (Mono.CSharp.ToplevelBlock
block, Boolean unreachable) [0x00000] 
  at Mono.CSharp.EmitContext.EmitTopBlock (IMethodData md,
Mono.CSharp.ToplevelBlock block) [0x00000] 


I tested this only with r118629 from svn.


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