When converting code from JavaScript, it's a real pain to change all the bitwise operators from infix to prefix. This module makes that unnecessary. You just add a twiddle prefix (~) to the operators.
Bitwise.not has no infix operator, since Elm doesn't provide single argument "infix" operators. So I named it BitwiseInfix.lognot, in honor of its Common Lisp name.
All the operators are left associative.
I mirrored the JavaScript precedences, putting the shift operators at lower precedence than arithmetic, but higher than comparison, and the others lower than comparison.
(~<<), (~>>), and (~>>>) have a precedence of 5.
(~&) has a precedence of 3.
(~^) has a precedence of 2.
(~|) has a precedence of 1.
Examples:
import BitwiseInfix exposing (..)
3 ~& 1 ~| 4 ~& 12 -- 5
3 ~& (1 ~| 4) ~& 12 -- 0
2 ~<< 1 ~| 2 -- 6
2 ~<< (1 ~| 2) -- 16
1 ~| 2 ~^ 2 ~| 1 -- 1
(1 ~| 2) ~^ (2 ~| 1) -- 0
3 ~& 1 ~^ 4 ~& 12 -- 5
3 ~& (1 ~^ 4) ~& 12 -- 0
9 ~>> 1 ~<< 1 -- 8
9 ~>> (1 ~<< 1) -- 2