[cfe-dev] Bug in Preprocessor::HandlePragmaDirective ?

[Peter Thoman]

In Pragma.cpp, line 96:

if  (CurPPLexer->ParsingPreprocessorDirective  <http://clang.llvm.org/doxygen/classclang_1_1PreprocessorLexer.html#6388ce47d19b9f7d0c703c643ab903a5>)

Is this correct? We got a segmentation fault [1] there (CurPPLexer is 
null) in our application. I could reproduce it with a small sample 
program [2] and even smaller input file [3] using pragma namespaces.

We fixed the immediate problem locally by changing the line above to

if  (CurPPLexer&&  CurPPLexer->ParsingPreprocessorDirective  <http://clang.llvm.org/doxygen/classclang_1_1PreprocessorLexer.html#6388ce47d19b9f7d0c703c643ab903a5>)

but I'm not quite sure that this is the correct way of doing it.

[1] http://pastebin.com/d48a6b613
[2] http://pastebin.com/m20e46def
[3] http://pastebin.com/d1584397c