Currently selective import *implicitly* creates alias declaration for each picked up names, and two equivalent selective import will make two alias declarations implicitly, then they conflict each other.

import std.conv : to;

import std.conv : to;

is mostly same as:

import std.conv;

alias to = std.conv.to;

alias to = std.conv.to;  // conflict with the first alias

I think it's a not good compiler implementation detail and unnecessary intrusive behavior.

Now I'm proposing to fix import mechanism in here.

Kenji Hara