https://issues.dlang.org/show_bug.cgi?id=19530

Neia Neutuladh <dhasenan@gmail.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |dhasenan@gmail.com
         Resolution|---                         |INVALID

--- Comment #1 from Neia Neutuladh <dhasenan@gmail.com> ---
Proposals like this should go through the DIP process -- see https://github.com/dlang/DIPs/blob/master/PROCEDURE.md

That should ensure that, at a minimum, your proposal is described thoroughly enough to understand.

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https://issues.dlang.org/show_bug.cgi?id=19530

Adam D. Ruppe <destructionator@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |destructionator@gmail.com

--- Comment #2 from Adam D. Ruppe <destructionator@gmail.com> ---
You can just define a third template that mixes in the first two.

mixin template A(int x, float y) {
  // ...
}

mixin template B(int x, float y) {
  // ...
}

mixin template composite(int x, float y) {
        mixin A!(x, y);
        mixin B!(x, y);
}

struct Test {
        mixin composite!(1, 2.0);
}


That works today.

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https://issues.dlang.org/show_bug.cgi?id=19530

--- Comment #3 from Victor Porton <porton@narod.ru> ---
This does not solve my problem.

I want the possibility to _selectively_ (at my disposal, that is both or only A or only B) add mixins A or B without the necessity to pass template parameters two times. Your example does not solve this problem.

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https://issues.dlang.org/show_bug.cgi?id=19530

--- Comment #4 from Adam D. Ruppe <destructionator@gmail.com> ---
You can also save template argument lists as a separate alias and reuse them.

// save the args as a new name to reuse
import std.meta;
alias MyArgs = AliasSeq!(1, 2.0);

struct Test {
        mixin A!MyArgs;
        mixin B!MyArgs;
}

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