[cfe-dev] Ignoring system headers in a RecursiveASTVisitor

[Gábor Kozár]

I believe what you need are
*clang::SourceManager::isInSystemHeader*
and
*clang::SourceManager::isInExternCSystemHeader*

The documentation has the details:
http://clang.llvm.org/doxygen/classclang_1_1SourceManager.html
Basically, you need to provide them with a SourceLocation, and they will
return a boolean value. The source location you can get for example using
clang::SourceManager::getLocForStartOfFile, or from any AST node.


2013/4/12 Tom Fairfield <antirush at gmail.com>

> I'm building a tool with the libtooling API - running an ASTFrontendAction
> with a RecursiveASTVisitor.
>
> By default, the visitor gets run for all included files, including system
> headers (<string> and the like).
>
> I can ignore all included files (and therefore only run on the files
> passed on the commandline) by overriding TraversDecl and checking
>
> context->getSourceManager().isFromMainFile(d->getLocation());
>
> Unfortunately, this stops me from traversing user included files.
> Ideally, I'd like to traverse non-system headers and ignore system
> headers.  Is there a way to accomplish this?
>
> Thanks!
>
> - Tom
>
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>
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