mixin Inherits( T... )
{
    static foreach( Index, ST; T )
    {
        mixin( "ST base" ~ Index.to!string ~ ";" );
    }
    alias base0 this;
}

struct Object1
{
    int foo;
}

struct Object3
{
    int notFoo;
}

struct Object2
{
    mixin Inherits!( Object1, Object3 );
    int bar;
}

pragma( msg, Object2.init.foo );