Does D have too many features?

[Don Clugston]

On 08/05/12 09:56, Andrej Mitrovic wrote:
> On 4/30/12, Andrej Mitrovic<andrej.mitrovich at gmail.com>  wrote:
>> Personally my gripe with compilation times is that I get very used to
>> having fast build times where I can go through an edit+compile+run
>> cycle really fast, but after a while build times get slower
>
> Also since 2.059 error reporting is *completely* broken. I have to
> wait 5 seconds just to get this error message itself to print to the
> screen:
> http://pastebin.com/y93GEPAf
>
> 500 lines of errors even though only the first line is an actual
> error. What in the actual fuck are all those other error messages? The
> only problem was this line in a main file:
> CppGen gen;
> and CppGen was undefined because I've missed an import.
>
> And if I remove the only import left (std.range), I get much less
> garbage but I still get unrelated errors:
> main.d(80): Error: undefined identifier CppGen
> D:\DMD\dmd2\windows\bin\..\..\src\phobos\std\conv.d(244): Error:
> template std.conv.toImpl does not match any function template
> declaration
> D:\DMD\dmd2\windows\bin\..\..\src\phobos\std\conv.d(244): Error:
> template std.conv.toImpl cannot deduce template function from argument
> types !(string)(long)
> D:\DMD\dmd2\windows\bin\..\..\src\phobos\std\conv.d(244): Error:
> template instance toImpl!(string) errors instantiating template
> loader\gcc.d(167): Error: template instance
> std.conv.to!(string).to!(long) error instantiating
>
> 2.058 error reporting worked fine, I don't know what someone did to
> screw this up so massively.

That bug was fixed in git not long after release. Unfortunately it seems 
that there are not enough people doing beta testing.

As for why it happened -- previously the compiler used a hack to prevent 
the flood of error messages (and the hack didn't work properly in the 
case where errors were gagged, like in is(typeof()) ). Now it does it 
properly.