how do I jump to a function definition in emacs when using slime?

Question

I have installed slime using https://github.com/thephoeron/slime-pack and want to explore the common-lisp a bit more.

How do I access the source for a particular function in emacs?

for example, if I have a function:

(type-of 1)

and I want to visit the source of type-of, how can this be done?

Wyckoff

I don't use the library you referenced, but I do use M-x find-function quite frequently. Does that work for you? There is also find-function-other-window and find-function-other-frame. – Decalcomania

I had the error Directory /usr/bin/src/code does not exist, create it ?` but it worked after I installed Slime with Emacs' package manager. – Tagliatelle

Answer 1

Meta .

It calls the function: slime-edit-definition

For jumping to functions inside your lisp implementation you may need to do something extra to point to the sources. In SBCL you have to sb-ext:set-sbcl-source-location to the correct place in .sbclrc:

(sb-ext:set-sbcl-source-location "/path/to/sbcl/")

You can edit .sbclrc with C-xC-f ~/.sbclrc in Emacs.

Teilo

If you build SBCL yourself the source location is set automatically. – Coverdale

This only works if the function was defined in a file you loaded. If you tey to do this with a definition you've sent to the REPL from your source via C-x e, you'll get Error: DEFINITION-SOURCE of function FOO-BAR did not contain meaningful information. – Prevaricator

But, how to jump back? – Glendaglenden

META comma allows you jump back – Teilo

Link to the Slime doc :) – Tagliatelle

And if the respective function is in a package, don’t forget to load that package in the REPL. Took me 5 minutes to realize this, I had just started Emacs. – Fechter