Why is the error message coming by the end of the compilation?

[Steven Schveighoffer]

On 4/13/18 4:50 PM, bauss wrote:
> I can't seem to reproduce this with any other smaller projects, so my 
> question is really what could trigger this behavior.
> 
> See: https://i.imgur.com/OmqJ8Sr.png
> 
> Whenever I try to just do this kind of thing by itself then it behaves 
> correctly.
> 
> Ex: (As you can see it prints the error messages in the order it should.)
> https://run.dlang.io/
> 
> What I'm doing is basically this:
>      static foreach (viewResult; generateViewsResult)
>      {
>        pragma(msg, "Compiling: " ~ viewResult.name);
>        mixin(viewResult.source);
>        pragma(msg, "Compiled: " ~ viewResult.name);
>      }
> 
> I would've expect the compiling to be before the error message, but the 
> compiled after the error message.

It may be on a later semantic pass that the error occurs, I'm not sure. 
Only thing I can think of.

> 
> However it seems like it doesn't do that, but as I can't reproduce it 
> I'm just wondering what causes it.
> 
> I'm suspecting that it's something to do with dub and that it's within a 
> dependency that's compiled as a source library, but I've yet to test it 
> out completely.

Try verbose output maybe?

> 
> It's really impossible to debug mixins when you have no idea which mixin 
> the error actually come from, which is what I'm trying to solve.

You may want to try using __traits(compiles) in a debug version to see 
whether it will compile or not, and if not, print the thing you are 
trying to compile.

-Steve