module block_template;

void main()
{
    template BluePrint(T, U)
    {
        T integer;
        U floatingPoint;
    }

    BluePrint!(int, float);
}

// DMD returns
// template.d(13): Error: BluePrint!(int, float) has no effect

// I was expecting something like the following to be created after compilation:

module block_template;

void main()
{
    {
        int integer;
        float floatingPoint;
    }
}


I realize this is a corner case, but shouldn't the BluePrint!(int, float); statement blindly create a block of code?

On Monday, 14 August 2017 at 00:44:05 UTC, WhatMeForget wrote:
> module block_template;
>
> void main()
> {
>     template BluePrint(T, U)
>     {
>         T integer;
>         U floatingPoint;
>     }
>
>     BluePrint!(int, float);
> }
>
> // DMD returns
> // template.d(13): Error: BluePrint!(int, float) has no effect
>
> // I was expecting something like the following to be created after compilation:
>
> module block_template;
>
> void main()
> {
>     {
>         int integer;
>         float floatingPoint;
>     }
> }
>
>
> I realize this is a corner case, but shouldn't the BluePrint!(int, float); statement blindly create a block of code?

you want https://dlang.org/spec/template-mixin.html