[cfe-dev] How to match clang::attr::Annotate with specific value?

[Andi-Bogdan Postelnicu via cfe-dev]

Hello,

Yes of course you can do that, you can first interrogate Decl::hasAttrs [1], and if that’s true you can get the AttrVec [2].
I would suggest to wrapp this in a custom matcher.

Hope this helps!

[1] https://clang.llvm.org/doxygen/classclang_1_1Decl.html#a1e0b6223e2547ac65ddbf4802117998b <https://clang.llvm.org/doxygen/classclang_1_1Decl.html#a1e0b6223e2547ac65ddbf4802117998b>
[2] https://clang.llvm.org/doxygen/classclang_1_1Decl.html#a59463d45ab90b696a368b58d23eb49aa

> On 5 Jul 2020, at 11:25, Yafei Liu via cfe-dev <cfe-dev at lists.llvm.org> wrote:
> 
> For example I have a struct:
> struct [[clang::annotate("example")]] ExampleStruct {
>   int i;
>   float f;
>   double d;
>   int* ip;
>   uint32_t ii;
> };
> Currently I use the matcher like this:
> clang::ast_matchers::cxxRecordDecl(clang::ast_matchers::hasDefinition(),
>     clang::ast_matchers::hasAttr(clang::attr::Annotate)).bind("example_struct");
> 
> Can I go further by making the matcher check if the annotate is "example"?
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> cfe-dev at lists.llvm.org
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