"instanceOf" trait for conditional implementations

[monarch_dodra]

On Thursday, 4 October 2012 at 09:43:08 UTC, monarch_dodra wrote:
> [SNIP]

You know what? Forget I said anything? Using lambdas is an 
incredibly good workaround for all the problems stated above, 
making the initial point moot.

Lamba if:

template isAssignable(T, U)
{
     enum bool isAssignable =
         is(typeof((ref T t, ref U u) => {t = u;}));
}

This allow testing on t and u, without ever having to 
construct/acquire them. Neat-o!!!