[cfe-dev] ParseObjCSelectorPiece and C++0x keywords

[Fariborz Jahanian]

On Jul 11, 2009, at 8:47 AM, AlisdairM(public) wrote:

> I'm working on my Unicode patch - step 2 and adding support for  
> char16/32_t, mostly by following the pattern set out by wchar_t.   
> This should quickly give the needed functionality, but might miss a  
> few warnings on using 0x extensions.
>
> The one place I have hit that I am not sure I should follow is  
> Parser::ParseObjCSelectorPiece, which seems to contain a list of all  
> the C++ and C99 keywords but none of the C++0x keywords, not even  
> those we implement such as static_assert, although it does contain  
> keywords we don't support such as export.

Selector names can be one of c/c++ keyword; as in:
@interface I
- goto;
- continue;
- class;
@end

Presumably to be compatible with gcc. Since C++0X keywords words are  
all new, there is no need to allow them in objc (unless, if they are  
already being used). So, we add them if there is existing use.

- fariborz


>
>
> So I guess this is a heads-up for the ObjectiveC/C++ folks to  
> consider whether this function needs updating to accommodate the 0x  
> language support now emerging.
>
> 0x keywords we already implement include:
> 	decltype
> 	nullptr
> 	static_assert
>
> Keywords that are work-in-progress
> 	char16_t
> 	char32_t
>
> Keywords that we do not yet implement
> 	axiom
> 	concept
> 	concept_map
> 	late_check
> 	requires
> 	thread_local
>
> AlisdairM
>
>
>
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