#[defun]Expand description
§#[defun]
Represents the functions that are going to be hydrated to emacs lisp, through the rune VM execution. As of
today, they are not documented with the GNU Emacs documentation, though definitely is a point of improvement.
Following Rust convention, defun names are written in snake_case, though if you search them in GNU Emacs,
you’ll find them in kebab-case.
Arguments of the defuns follow the arguments on its corresponding documentation, or rather, definition on
the C Emacs core.
§Examples
For the make-vector function, here’s its signature:
make-vector is a function defined in
alloc.c. Signature(make-vector LENGTH INIT)
Its corresponding rune #[defun] signature would be:
#[defun]
fn make_vector(length: usize, init: GcObj) -> Vec<GcObj> {}The return object is interesting, as it’s not so easily inferrable from the signature, but rather from documentation.
In this case, the make-vector defun returns a newly created vector.