Hi, just a release of a meta programming library
(https://bolts.dub.pm) that has utilities that I use in personal
projects, and that I find in phobos, and or in the forums. A
notable difference is that functions here try to operate on any
compile time entities if they can be resolved.
I.e.:
int i;
void g0(int) {}
struct S { void g1(int) {} }
alias g2 = (int a) => a;
static assert(isFunctionOver!(g0, int));
static assert(isFunctionOver!(S.g1, 3));
static assert(isFunctionOver!(g2, i));
And there's a "doth" super template that tries to contain most
things under what I feel is a nicer api ("is" was taken, so i
looked to Shakespearian gibberish :p) and also allows for easier
use with meta functions:
E.g.:
int *pi = null;
static assert( doth!3.of!int);
static assert(!doth!pi.nullable);
static assert( doth!((a, b, c, d) => a).functionOver!(int, int,
int, int));
int i;
import std.meta: allSatisfy;
static assert(allSatisfy!(doth!int.of, 3, 4, int, i));
Here's an example of a gem adapted from inside the forms/phobos
sources as well:
alias a = AliasPack!(1, 2, 3);
alias b = AliasPack!(4, 5, 6);
alias c = AliasPack!(7, 8, 9);
alias d = staticZip!(a, b, c);
static assert(d.length == 3);
static assert(d.Unpack[0].equals!(1, 4, 7));
static assert(d.Unpack[1].equals!(2, 5, 8));
static assert(d.Unpack[2].equals!(3, 6, 9))
static assert(AliasPack!(d.UnpackDeep).equals!(1, 4, 7, 2, 5, 8,
3, 6, 9));
Cheers,
- Ali
