Bug 4290 - Parameter completion exception inserting method with arguments before other methods
Summary: Parameter completion exception inserting method with arguments before other m...
Status: RESOLVED FIXED
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: C# Binding ()
Version: unspecified
Hardware: PC Linux
: Low normal
Target Milestone: ---
Assignee: Mike Krüger
URL:
Depends on:
Blocks:
 
Reported: 2012-04-06 08:55 UTC by Csaba Halász
Modified: 2012-04-06 13:57 UTC (History)
1 user (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Csaba Halász 2012-04-06 08:55:06 UTC
Given this code:

using System;
namespace Test
{
    class TestClass  
    {
        public static void Main(string[] args)
        {
        }
    }
}

Try to insert a new method with at least two arguments before "Main". A NullReferenceException happens when you type the comma after the first argument.
Such as:

using System;
namespace Test
{
    class TestClass  
    {
        public static void Foo(string bar,
        public static void Main(string[] args)
        {
        }
    }
}

ERROR [2012-04-06 14:48:24Z]: Unexpected parameter completion exception.
FileName: CompletionTest/Test.cs
Position: line=6 col=36
Line text:              public static void Foo(string bar,
System.NullReferenceException: Object reference not set to an instance of an object
  at ICSharpCode.NRefactory.CSharp.Completion.CSharpParameterCompletionEngine.GetParameterDataProvider (Int32 offset, Char completionChar) [0x00328] in monodevelop/main/contrib/ICSharpCode.NRefactory.CSharp/Completion/CSharpParameterCompletionEngine.cs:220 
  at MonoDevelop.CSharp.Completion.CSharpCompletionTextEditorExtension.HandleParameterCompletion (MonoDevelop.Ide.CodeCompletion.CodeCompletionContext completionContext, Char completionChar) [0x0008e] in monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp.Completion/CSharpCompletionTextEditorExtension.cs:375 


Note: this doesn't popup a "send error report" dialog, nor does it have any other noticeable negative effects apart from logging the exception to the console
Comment 1 Mike Krüger 2012-04-06 13:57:37 UTC
fixed.