#ord #options #transparent #generics #macro #smallest #explicit

macro bin option_ord

configure ordering on 1+T with the 1 either smallest or largest, explicit vs derive default

3 releases

0.1.2 Dec 26, 2024
0.1.1 Oct 11, 2024
0.1.0 Jul 22, 2024

#702 in Procedural macros

Download history 6/week @ 2024-09-25 3/week @ 2024-10-02 163/week @ 2024-10-09 9/week @ 2024-10-16 1/week @ 2024-12-04 2/week @ 2024-12-11 137/week @ 2024-12-25 4/week @ 2025-01-08

141 downloads per month

MIT license

6KB
89 lines

proc macro so that

struct MyOption(Option) where T : Ord;

becomes transparent, and gets the implementation of Ord where the None is bigger/smaller than all the Some(_)

and without generics as well as in #[transparent_option_ord(true)] struct MyOption(Option); which puts None as smaller than everything else

Dependencies

~1.5MB
~38K SLoC