[cfe-dev] Writing a tentative parser for C++0x attributes

[Sean Hunt]

Hey clang-folk!

I'm working on implementing the new C++0x attribute specification,
currently integrated into the working paper. Aside from a couple issues
in the specification which I've sent forward to the committee in hopes
they can be addressed, my biggest issue is adjusting
isCXXDeclarationStatement

The problem is that C++0x attributes can be the start of all
declarations as well as some statements. As a result, the tentative
parsers that disambiguate need to be able to work in the face of an
attribute-specifier.

Initially, I opened a TentativeParseAction in isCXXDeclarationSatement,
but that was causing crashes in the scope annotation system. Does anyone
have any better ideas for how to do this?

Sean Hunt