[cfe-dev] Warning options table

[Ted Kremenek]

On Mar 4, 2009, at 4:42 AM, Sebastian Redl wrote:

>> Wall?  That is, to implement -Wall, or any other option whose  
>> warnings
>> might cross  several libraries, don't we need the ability to
>> potentially know about all the warnings across Clang?  I think that
>> was the original motivation to put all the warnings in one TableGen
>> file.
>>
>
> If we have the warning option definitions in a separate file anyway  
> (and I
> think we should, since warning options are orthogonal to which  
> component
> issues the warning), you can just have that file include all the  
> diagnostic
> definition files.
>
> Sebastian

Hi Sebastian,

I've been looking at what you have done and have started work on the  
TableGen backends.

Concerning your point above, I still think that warning groups need to  
be declarative, where a warning says (either implicitly or explicitly)  
that it is part of a warning group.  Explicitly having to declare  
warning groups seems highly suboptimal.

We can then have a separate .td entry that tells how a warning group  
maps to a command-line option.

Ted