Template Mixin Conflicts

[Alice via Digitalmars-d-learn]

Hi,


I've created a template mixin which contains a struct definition. 
The template is meant to be mixed into each module - to provide a 
little bit of auto generated info in each module - generated at 
compile time. As soon as I reference the symbols in any context, 
it starts complaining about conflicts between the two modules.

It doesn't have to be a struct; the conflicts exist whether I 
define a struct, class, function, or whatever... any symbol.

It is valid to manually define symbols with the same name in 
different modules, since they each exist in a different scope, so 
why does a symbol brought in by a mixin conflict?

Even defining the struct as private doesn't help. Any ideas would 
be most appreciated.


Here's a very simple failing case:


// ModuleA.d
module ModuleA;

import ModuleB;

mixin MixinUsefulStuff;

pragma(msg, "a = ", SomeData.a); // Error: 
ModuleB.MixinUsefulStuff!().SomeData at ModuleB.d(5) conflicts 
with ModuleA.MixinUsefulStuff!().SomeData at ModuleB.d(5)


// ModuleB.d
module ModuleB;

mixin template MixinUsefulStuff()
{
	struct SomeData
	{
		enum a = 123;
	}
}

mixin MixinUsefulStuff;