[cfe-dev] Question about ASTMatchers

[Manuel Klimek]

hasAncestor(decl(anyOf(recordDecl(
  isTemplateInstantiation()),
  functionDecl(isTemplateInstantiation()))

should do what you want.


On Wed, Feb 19, 2014 at 11:01 PM, Christian Schafmeister <
chris.schaf at verizon.net> wrote:

>
> If I match a varDecl() that is in a method of a template class I get a
> match for the template and instantiated templates
> - is there a way to tell the difference by matching some difference in the
> ancestors of the varDecl node?
>
> I get a match for the translate::from_object<T> a0(*args);  varDecl in the
> method activate (see below) that has this type:
> from_object<type-parameter-0-0, struct std::__1::integral_constant<_Bool,
> true> >
>
> I also get a match that I think is from the instantiation
> TestFunctoid<int> j(“test”) in tinyFunc - it has this type: "struct
> translate::from_object<int, std::true_type>"
>
> There is a clear difference in the name - but I was looking for something
> that didn’t feel like a hack.
>
> Are there differences in the AST class node for TestFunctoid when it is a
> template class vs when it is an instantiated template class?
>
>
>
> #include <stdio.h>
> #include <core/foundation.h>
> #include <core/object.h>
> #include <core/holder.h>
>
> namespace asttooling {
>
>
>     template<typename T>
>     class TestFunctoid : public core::Functoid {
>     public:
>
>         TestFunctoid(const string& name) : core::Functoid(name) {};
>         core::T_mv activate( core::const_ActivationFrame_spREF
> closedOverFrame, int numArgs, ArgArray args )
>         {
>             translate::from_object<T> a0(*args);
>             printf( "Address of a0= %p\n", &a0);
>             return Values0<core::T_O>();
>         }
>     };
>
>
>
>     void tinyFunc()
>     {
>         TestFunctoid<int> j("test");
>         TinyStruct x(10);
>         tinyFunc(x);
>         printf("Hi there, this is tinyFunc\n");
>     }
>
> };
>
> Christian Schafmeister
> Associate Professor
> Chemistry Department
> Temple University
>
>
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