On Friday, 24 February 2017 at 11:17:46 UTC, John Colvin wrote:
Unfortunately that only works by accident of my example. A
counterexample:
T foo(Q = float, T = short)(T t) { return t; }
alias Typeof(alias v) = typeof(v);
template getInstantiation(alias f, T...)
{
import std.meta;
alias getInstantiation = f!(staticMap!(Typeof, T));
}
static assert(is(typeof(foo(3)) == int)); // ok
static assert(is(typeof(getInstantiation!(foo, 3)(3)) == int));
// fails
This looks like VRP is kicking in when it shouldn't, or maybe
it's a different bug. 3 should be typed as int by default unless
we explicitly ask for something else.
