Better indentation of `emit` in geometry stage

[cbaggers]

mfiano: in a geometry stage, the emit keyword...would be nice if it indented like it had &body instead of:

(emit ()
(* mvp (vec4 (.xy offsets) 0 1))
(.xw extents))
(emit ()
(* mvp (vec4 (.zy offsets) 0 1))
(.zw extents))
(emit ()
(* mvp (vec4 (.xw offsets) 0 1))
(.xy extents))
(emit ()
(* mvp (vec4 (.zw offsets) 0 1))
(.zy extents))

[cbaggers]

I tried a dummy macro and it didnt work

(defmacro emit ((&key point-size) &body data)
  (declare (ignore point-size data))
  (error "Emit is only valid inside shader code"))

Not sure why yet

[edit] from mfiano:

Well I can't confirm, but it is possible that a macro called emit exists somewhere in the lisp image, and SLIME or Sly does not pay attention to the package for semantic indentation purposes.

[cbaggers]

Maybe I should try https://github.com/Shinmera/trivial-indent

[cbaggers]

Oh my bad, indentation does work with that macro, that'll do for now :)