Install

This library has not yet been released to opam. To install it, first

opam install ppx_matches

Users of dune can then use this PPX on their libraries and executables by adding the appropriate stanza field:

(library
 ...
 (preprocess (pps ppx_matches)))

Syntax

In short:

• [%matches? pat [when cond]] expands to

    function
  | pat [when cond] -> true
  | _ -> false

• [%matches? pat [when cond]] matchee expands to the inlined version:

    match matchee with
  | pat [when cond] -> true
  | _ -> false