[cfe-dev] A checker that checks macro calls

[Eli Friedman]

On Mon, Jun 24, 2013 at 3:15 PM, Todd Nowacki <nowacki724 at gmail.com> wrote:

> Hi,
>
> I'm currently trying to implement a checker that needs to know when a
> certain macro is invoked.
>
> For example, if I had something like:
> #define MY_MACRO(x)  ...
>
> I would want to check if the statement is MY_MACRO and then inspect its
> argument.
>
> I see that with checkPreStmt or checkPostStmt. I can check if it is a
> macro, via getLocStart and isMacroID. Is there a way to get the name of the
> macro and it's argument (if it has one)?
> I see that MacroInfo could be used to get the args possibly, but it
> doesn't seem to give me the name.
>


You can get the name of the macro by looking into the source buffer; get
the expansion location and use something like Lexer::getRawToken to pull
out the name.

-Eli
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