On Sunday, 18 September 2016 at 12:16:54 UTC, Andrei Alexandrescu
wrote:
I don't see that as much of a hurdle seeing as any template
written has a few "obvious" types it'll work with. To
encapsulate that if needed:
struct Awesome(A, B, C)
{
private enum ut = is(A == int) && is(B == int) && is(C ==
int);
unittest { alias Awe = Awesome!(int, int, int); }
static if (ut) unittest
{
...
}
}
I like how the non-static unittest ensures that any instantiation
of Awesome triggers the static unittest. I've encapsulated this
pattern into a template:
https://github.com/ntrel/stuff/blob/master/testinstanceflag.d#L34
Awesome would then just need one line instead of two before the
'static if' line:
private enum ut = testInstanceFlag!(Awesome, int, int, int);
(testInstanceFlag currently only works with one argument though).
The nice thing is that people reading the source can look up the
docs for testInstanceFlag to learn about it.
