John Fremlin <jf@...> writes:
> Dear SBCL,
> First off, thanks for making SBCL. We recently did an informal survey of
> the quality of code generated by Lisp compilers and SBCL was by far the
> However, one slightly annoying issue with SBCL is that it stores the
> code locations for functions and other things in a way that does not
> make it easy to get out the line number. IIUC, it stores the number of
> toplevel forms through the file and then the number of the form inside
> that toplevel form.
> This means that to find a function in the source file, SLIME has to do
> all sorts of shenanigans with reading in the file again (with an attempt
> to replace the read-table) and then computing the line number.
> Is there a philosophical objection to adding line/column numbers to code
> locations? Is it technically difficult? Would a patch to do it be
> considered, and if so should I remove the toplevel form counters at the
> same time or leave them alone?
This allows slime to find the right location of the form without
recompilation of the whole file, whenever you change it's layout, like
inserting new lines, forms, etc.
With best regards, Stas.