Re: Template mixins and struct constructors

[Adrian Matoga via Digitalmars-d-learn]

On Wednesday, 2 March 2016 at 12:48:47 UTC, Daniel Kozak wrote:
On Wednesday, 2 March 2016 at 12:27:04 UTC, Adrian Matoga wrote:
(...)

You can use string mixins:

template AddField(T) {
        enum AddField = T.stringof ~ `  b;
        this(Args...)(` ~ T.stringof ~ ` b, auto ref Args args)
        {
                this.b = b;
                this(args);
        }`;
}

struct Bar {
        mixin(AddField!string);
        int a;
        this(int a) { this.a = a; }
}

unittest {
        auto bar1 = Bar(5);
        auto bar2 = Bar("bar", 15);  // line 31
}

What if T is private type in some other module or, even worse, a 
Voldemort type?