Making your .NET language step correctly in the debugger

Question

Firstly, I apologize for the length of this question.

I am the author of IronScheme. Recently I have been working hard on emitting decent debug info, so that I can use

Answer 1

I am an engineer on the SharpDevelop Debugger team :-)

Did you solve the problem?

Did you try to debug it in SharpDevelop? If there is a bug in .NET, I wonder if we need to implement some workaround. I am not aware of this issue.

Did you try to debug it in ILSpy? Especially without debug symbols. It would debug C# code, but it would tell us if the IL instructions are nicely debugable. (Mind that ILSpy debugger is beta though)

Quick notes on the original IL code:

• .line 19,19 : 6,15 '' occurs twice?
• .line 20,20 : 7,14 '' does not start on implicit sequence point (stack is not empty). I am worried
• .line 20,20 : 7,14 '' includes the code for "car x" (good) as well as "#f nooo x" (bad?)
• regarding the nop after ret. What about stloc, ldloc, ret? I think C# uses this trick to make ret a distinct sequence point.

David