staticMap but with two arguments

[Ali Çehreli]

On 2/9/23 12:45, John Chapman wrote:
 > On Thursday, 9 February 2023 at 19:17:55 UTC, Ali Çehreli wrote:
 >> I could not figure out eliminating the hard-coded 4. Can we introspect
 >> the parameter list of a template like 'fun' in the example? If we
 >> could, then we could get 4 that way.
 >
 > Thank you for this. I don't mind hard-coding the N argument.
 > TemplateArgsOf needs an instantiated template but maybe ```enum N =
 > count(fun.stringof, ',') + 1``` is good enough.

Hopefully but very fragile:

template t(int[] T = [ 1, 2 ]) {}

void main() {
     import std.algorithm : count;
     enum N = count(t.stringof, ',') + 1;
     static assert(N == 1); // FAILS
}

Same thing with any other thing with comma in it e.g.

template t(T = anotherTemplate!(1, 2)) {}

Ali