...v) {
    static auto fun(alias lambda)(int x) {
        return lambda(x);
    }
}

alias f1 = canon!"abc...

...net> ---
AFAIK, the problem is that the alias template parameter doesn't capture the context...

...empty masqueraded from a nested struct via alias this doesn't pass isInputRange?", which then...

...string v) {
    auto fun(alias lambda)(int x) {
        return lambda(x);
    }
}

alias f1 = canon!"abc...

...time guarantee that there's only one alias left.

"We can have @safe vectors, unless...

...In a large number of cases of alias this, its due to wanting a wrapper...

...904fde46c4bad53ae65d72225d9b5f0c9beb6135 by Boris Carvajal:
  Fix Issue 21039 - `alias this` returns 'null' for ref types when...

...useless in D meta-programming.

alias I1(alias T) = T;
alias I2(T...) = T;

I1...

...one hand and rely on hacks like "alias this" on the other. And then there...

...dmd pull request #13277 "Fix Issue 21039 - `alias this` returns 'null' for ref types when...