GHIL Locations

[Daniel Kraft]

Hi Andy and all,

I have a question regarding compiling to GHIL:  When calling functions 
like (make-ghil-something) there are always these two parameters 
environment and location to pass.  For location, I did so far always use 
#f and it works quite well.  However, I guess there's some use for this 
argument too, isn't it?

Unfortunately, I couldn't so far find out what this location is really 
for (and how to use it correctly).  My wild guess is that this is a 
means to associate source code positions to generated code in order to 
get useful backtraces?  But I might be completely wrong here.

If so, is there another way to do this?  Or can my compiler for Elisp to 
come only give line-number related errors during the compilation itself 
where it obviously knows about the position?

Thanks!

Daniel