Re: Can't compile `or' pcase pattern

[Stefan Monnier]

> #+begin_src emacs-lisp
> (el-search--matcher
>  '(or (l ^ defstruct object)
>       (l ^ (and (symbol "def") (or (pred macrop) (pred special-form-p))) 
> object)))
> #+end_src

Looking at the definition of `l` I think you're pushing pcase a bit
further than it can go.

A bit like a DFA representation of a regexp can explode, a pcase's
expansion can explode in some cases, and your `l` has all the tools
needed to triggger such explosions.

Maybe you can reduce the pain, by looking at the expansion and
trying to see how pcase-mutually-exclusive-p could be improved to get
a better result.


        Stefan