nixpkgs-suyu/pkgs/lib/trivial.nix
2009-10-23 07:34:56 +00:00

21 lines
444 B
Nix

rec {
# Identity function.
id = x: x;
# Constant function.
const = x: y: x;
# Named versions corresponding to some builtin operators.
concat = x: y: x ++ y;
or = x: y: x || y;
and = x: y: x && y;
mergeAttrs = x: y: x // y;
# Take a function and evaluate it with its own returned value.
fix = f: let result = f result; in result;
# Flip the order of the arguments of a binary function.
flip = f: a: b: f b a;
}