Identifying function name

[Guest]

Is there some generic property that will give me the name of a function
within its catch block?

 

[Jon Skeet [C# MVP]]

Is there some generic property that will give me the name of a function
within its catch block?

You can use the StackTrace class - but don't start building stack
traces in performance critical code.

If you're interested in what threw the exception, you can just use
Exception.TargetSite.

Jon

 

[Guest]

Is there some generic property that will give me the name of a function
within its catch block?

What are you trying to accomplish ?

(when you write the code you know the function name)

Arne

 

[Mark Rae [MVP]]

You can use the StackTrace class - but don't start building stack
traces in performance critical code.

What about this: ?
http://msdn2.microsoft.com/en-us/library/system.reflection.methodbase.getcurrentmethod.aspx

Are there any performance issues with that...?

 

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

What about this: ?
http://msdn2.microsoft.com/en-us/library/system.reflection.methodbase.getcurrentmethod.aspx

Are there any performance issues with that...?

It is in System.Slow namespace, so with sufficient many calls
it could be a performance problem.

It is probably faster than StackTrace though.

Arne

 

[Jon Skeet [C# MVP]]

What about this: ?
http://msdn2.microsoft.com/en-us/library/system.reflection.methodbase
.getcurrentmethod.aspx

Are there any performance issues with that...?

Not sure, to be honest - I only didn't mention it because I missed it

 

[Guest]

I have a single error reporting method that takes the exception variable as
its argument; so I don't know which method caused the exception but as
detailes in the Jon Skeet's post, the exception variable holds the name.

 

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

It is in System.Slow namespace, so with sufficient many calls
it could be a performance problem.

It is probably faster than StackTrace though.

I made a small test with:
StackTrace
GetCurrentMethod
maintaining a special call stack via AspectDNG

The timings were:

StackTrace: 10,53125
GetCurrentMethod: 2,171875
AOP: 4,171875

So GetCurrentMethod is absolutely the fastest.

But I would say its usability is limited because it does exactly
what its name says so it can only be used in inline code not
out in a special log/whatever method.

Arne

 

[Guest]

I have a single error reporting method that takes the exception variable as
its argument; so I don't know which method caused the exception but as
detailes in the Jon Skeet's post, the exception variable holds the name.

Yes. And because you already have the exception, then there are
very little overhead.

Arne