Enums - probably an old subject

[monarch_dodra]

On Thursday, 21 November 2013 at 18:44:39 UTC, Steve Teale wrote:
> On Thursday, 21 November 2013 at 17:39:28 UTC, Andrei 
> Alexandrescu wrote:
>> On 11/21/13 8:48 AM, Steve Teale wrote:
>>> Could 'with' be extended to cover enum names do you think? 
>>> Also a
>>> supplementary question - does auto lock out some things like 
>>> this, are
>>> there other examples?
>>
>> Guess it could. One other thing we could do is to make enum 
>> namespaces behave like imports.
>>
>> Andrei
>
> I'd love to understand "make enum namespaces behave like 
> imports", but I should probably ask that on D Learn ;=)

When you import from a module, you only need to specify the 
module name if there is ambiguity. So for example:

//----
import std.array;

void main()
{
     split("hello"); //OK!
}
//----
import std.array;
import std.algorithm;

void main()
{
     split("hello"); //Wait... did you want std.algorithm.split, 
or std.array.split?
     std.array.split("hello"); //OK! That's clearer now.
}
//----

What Andrei is saying is that an enum *could* work the same way:

enum RedBlack //For red black trees
{
     Red,
     Black,
}
enum BlackWhite //For Checker boards
{
     Black,
     White,
}

void main()
{
     writeln(Red); //OK! No problem!
     writeln(Black); //I'm sorry... that's ambiguous :/
     writeln(RedBlack.Black); //OK! That's clearer now!
}

Whether or not it *should*, I don't know. "Why not?" I like to 
say :)