alias and mixin

[ketmar via Digitalmars-d-learn]

On Mon, 01 Sep 2014 10:57:41 +0000
evilrat via Digitalmars-d-learn <digitalmars-d-learn at puremagic.com>
wrote:

and to check that ugly hackery:

    mixin template makeAlias(string aliasName, string Name, alias
    Replace) {
      static if ( __traits(compiles, (mixin(Name~`.sizeof`))) )
        mixin(`alias `~aliasName~` = ` ~ Name ~ `;`);
      static if ( (is(Replace == class) || is(Replace == struct)) )
        mixin(`alias `~aliasName~` = ` ~ Replace.stringof ~ `;`);
      else static assert(0);
    }


    struct A {}
    struct B {}
    struct C {}
    mixin makeAlias!("coolStruct", "MyStruct", A);
    mixin makeAlias!("coolStruct1", "B", C);

    void doSomething(coolStruct cs)
    {
      static if (!is(typeof(cs) == A)) static assert(0);
      //.. do something with struct ..
    }

    void doSomething1(coolStruct1 cs)
    {
      static if (!is(typeof(cs) == B)) static assert(0);
      //.. do something with struct ..
    }
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