Is there any hope for "lazy" and @nogc?

[Shachar Shemesh]

Thank you! Finally!

Let me just state, for the record, that having *yet another* syntax 
special case is just appalling.

With that said, I was hoping that specifying it explicitly as a delegate 
would allow me to scope it. Apparently, that doesn't work :-(

Shachar

On 31/07/18 23:03, ag0aep6g wrote:
> On 07/31/2018 09:17 AM, Shachar Shemesh wrote:
>> I'm trying to figure out what's the signature of the built-in assert. 
>> It does not seem that I can define a similar function myself.
> 
> Looks like you can do it with a "lazy variadic function" [1], but it's 
> not pretty:
> 
> ----
> alias Dg = string delegate() @nogc nothrow;
> 
> void myAssert(bool cond, Dg[1] msg_dg ...) @nogc nothrow
> {
>      import core.stdc.stdio;
>      if (!cond)
>      {
>          string msg = msg_dg[0]();
>          printf("%*s\n", msg.length, msg.ptr);
>      }
> }
> ----
> 
> [1] https://dlang.org/spec/function.html#lazy_variadic_functions