diff options
| -rw-r--r-- | include/clang/AST/DeclTemplate.h | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/include/clang/AST/DeclTemplate.h b/include/clang/AST/DeclTemplate.h index 14a6ca685a..36549eab38 100644 --- a/include/clang/AST/DeclTemplate.h +++ b/include/clang/AST/DeclTemplate.h @@ -618,8 +618,42 @@ public: getCommonPtr()->InstantiatedFromMember.setInt(true); } - /// \brief Retrieve the previous declaration of this template, or - /// NULL if no such declaration exists. + /// \brief Retrieve the member template from which this template was + /// instantiated, or NULL if this template was not instantiated from a + /// member template. + /// + /// A template is instantiated from a member template when the member + /// template itself is part of a class template (or member thereof). For + /// example, given + /// + /// \code + /// template<typename T> + /// struct X { + /// template<typename U> void f(T, U); + /// }; + /// + /// void test(X<int> x) { + /// x.f(1, 'a'); + /// }; + /// \endcode + /// + /// \c X<int>::f is a FunctionTemplateDecl that describes the function + /// template + /// + /// \code + /// template<typename U> void X<int>::f(int, U); + /// \endcode + /// + /// which was itself created during the instantiation of \c X<int>. Calling + /// getInstantiatedFromMemberTemplate() on this FunctionTemplateDecl will + /// retrieve the FunctionTemplateDecl for the original template "f" within + /// the class template \c X<T>, i.e., + /// + /// \code + /// template<typename T> + /// template<typename U> + /// void X<T>::f(T, U); + /// \endcode RedeclarableTemplateDecl *getInstantiatedFromMemberTemplate() { return getCommonPtr()->InstantiatedFromMember.getPointer(); } |