[cfe-dev] Using RecursiveASTVisitor with comment nodes

Alex L via cfe-dev cfe-dev at lists.llvm.org
Tue Oct 24 10:13:06 PDT 2017

Hi Stephen,

I believe that the comment nodes are stored in a side table, and are not
visited by the RecursiveASTVisitor. Here's how the AST dumper gets them:

    if (const FullComment *Comment =

You get them in the same manner in your visitor in your VisitDecl function
if you want to visit them.

I hope this helps,

On 23 October 2017 at 18:38, Stephen Pegoraro via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> I'm working on a doc-comment tool using RecursiveASTVisitor however it
> doesn't seem to work with member functions named Visit[Comment
> Type]Comment.
> E.g. VisitFullComment never gets called. When dumping the AST for the same
> source it clearly shows the comments nested under a FunctionDecl node.
> Do I have to extract the comments directly from declaration nodes? Or can
> I extract them independently?
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