Discussion Thread: DIP 1032--Function pointers and Delegate Parameters...--Community Review Round 1

[Avrina]

To add onto this, the problem the new proposal would solve is for 
example ones with opApply.

import std.stdio;

struct Container {
     nothrow @nogc
     int opApply(int delegate(int) @nogc nothrow dg) {
        return dg(0);
     }
}

void main() {
     foreach(a ; Container()) {
         int* d = new int; // error currently
     }
}

Templates aren't exactly a solution, you lose access to auto 
inferring the types in foreach if you do.

Where as, in the current state of DIP1032, it is no more than 
syntax sugar that introduces a breaking change. I am against 
DIP1032 in it's current state adds almost nothing and introduces 
breaking changes.