[Mono-bugs] [Bug 80878][Nor] New - delegate declaration in event add accessor results in exception

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Changed by thoemy at gmail.com.

http://bugzilla.ximian.com/show_bug.cgi?id=80878

--- shadow/80878	2007-02-16 20:32:35.000000000 -0500
+++ shadow/80878.tmp.6478	2007-02-16 20:32:35.000000000 -0500
@@ -0,0 +1,96 @@
+Bug#: 80878
+Product: Mono: Compilers
+Version: 1.2
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: C#
+AssignedTo: rharinath at novell.com                            
+ReportedBy: thoemy at gmail.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: delegate declaration in event add accessor results in exception
+
+Description of Problem:
+
+gmcs version 1.2.2.1 throws an exception when compiling the following code:
+
+public class Test
+{
+  public delegate void TestEventHandler ();
+  public event TestEventHandler testEvent;
+
+  public event TestEventHandler TestEvent
+  {
+    add {
+      TestEventHandler fun = delegate () { value (); };
+      fun ();
+    }
+    remove { }
+  }
+}
+
+
+Steps to reproduce the problem:
+1. Save code as Test.cs
+2. gmcs Test.cs
+
+Actual Results:
+
+Exception caught by the compiler while compiling:
+   Block that caused the problem begin at: Test.cs(9,27):
+                     Block being compiled: [Test.cs(9,39):,Test.cs(9,51):]
+System.NullReferenceException: Object reference not set to an instance of
+an object
+Exception caught by the compiler while compiling:
+   Block that caused the problem begin at: Test.cs(8,3):
+                     Block being compiled: [Test.cs(8,7):,Test.cs(10,3):]
+System.NullReferenceException: Object reference not set to an instance of
+an object
+
+Unhandled Exception: System.NullReferenceException: Object reference not
+set to an instance of an object
+  at Mono.CSharp.ScopeInfo.CreateScope (Mono.CSharp.Block block) [0x00000] 
+  at Mono.CSharp.Block.CreateScopeInfo () [0x00000] 
+  at Mono.CSharp.ParameterReference.DoResolveBase (Mono.CSharp.EmitContext
+ec) [0x00000] 
+  at Mono.CSharp.ParameterReference.DoResolve (Mono.CSharp.EmitContext ec)
+[0x00000] 
+  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec,
+ResolveFlags flags) [0x00000] 
+  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec) [0x00000] 
+  at Mono.CSharp.SimpleName.DoSimpleNameResolve (Mono.CSharp.EmitContext
+ec, Mono.CSharp.Expression right_side, Boolean intermediate) [0x00000] 
+  at Mono.CSharp.SimpleName.SimpleNameResolve (Mono.CSharp.EmitContext ec,
+Mono.CSharp.Expression right_side, Boolean intermediate) [0x00000] 
+  at Mono.CSharp.SimpleName.DoResolve (Mono.CSharp.EmitContext ec, Boolean
+intermediate) [0x00000] 
+  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec,
+ResolveFlags flags) [0x00000] 
+  at Mono.CSharp.Invocation.DoResolve (Mono.CSharp.EmitContext ec) [0x00000] 
+  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec,
+ResolveFlags flags) [0x00000] 
+  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec) [0x00000] 
+  at Mono.CSharp.ExpressionStatement.ResolveStatement
+(Mono.CSharp.EmitContext ec) [0x00000] 
+  at Mono.CSharp.StatementExpression.Resolve (Mono.CSharp.EmitContext ec)
+[0x00000] 
+  at Mono.CSharp.Block.Resolve (Mono.CSharp.EmitContext ec) [0x00000] 
+  at Mono.CSharp.EmitContext.ResolveTopBlock (Mono.CSharp.EmitContext
+anonymous_method_host, Mono.CSharp.ToplevelBlock block,
+Mono.CSharp.Parameters ip, IMethodData md, System.Boolean& unreachable)
+[0x00000]
+
+Expected Results:
+It should compile without problems.
+
+How often does this happen? 
+Every time
+
+Additional information:
+Debian mono-gmcs package version 1.2.2.1-1