[cfe-dev] ASTMatchers: isVirtual and isOverride

[Gábor Kozár]

Hi,

What version are you using? The matchers isOverride() and isVirtual() I
know for certain were not in version 3.2, and can only be found on SVN (in
this file:
http://llvm.org/svn/llvm-project/cfe/trunk/include/clang/ASTMatchers/ASTMatchers.h
).

Nonetheless, you can implement them all very easily manually, or just
indeed copy their implementation from the link above. Also, instead of
isDefaultConstructor(), you could use argumentCountIs(0).

Gabor


2013/4/18 Pedro Delgado Perez <pedro.delgadoperez at mail.uca.es>

>  Hi,
>
> I'm newbie using ASTMatchers and I'm trying to learn little by little how
> to use them.
>
> I was basing on the matcher recordDecl(hasName("Foo"), isDerivedFrom("Bar"))
> shown in http://clang.llvm.org/docs/LibASTMatchers.html trying to include
> new features. For instance, I tried to look for classes which have at least
> one virtual method:
>
> recordDecl(hasName("Foo"), isDerivedFrom("Bar"), hasMethod(isVirtual()))
>
> Or I tried to match protected overriden methods:
>
> methodDecl(allOf(isProtected(), isOverride());
>
> But neither of them worked as it couldn't find "isOverride" and
> "isVirtual" identifiers. I was trying a lot of combinations, but I can't
> understand this well.
>
> Finally, I tried to look for the the default constructor of a certain
> class:
>
> constructorDecl(hasName("Foo"), isDefaultConstructor())
>
> but this is wrong. What I'm doing bad? Please, any information you give me
> will be fine to me to understand how to use matchers.
>
> Thanks in advance,
>
> Pedro.
>
>
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>
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