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-rw-r--r--include/clang/AST/RecursiveASTVisitor.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/include/clang/AST/RecursiveASTVisitor.h b/include/clang/AST/RecursiveASTVisitor.h
index 36b151ddf3..1b2f3a79dd 100644
--- a/include/clang/AST/RecursiveASTVisitor.h
+++ b/include/clang/AST/RecursiveASTVisitor.h
@@ -40,14 +40,17 @@ return static_cast<Derived*>(this)->Visit ## NAME(static_cast<CLASS*>(Var))
*
* Clients of this visitor should subclass the visitor (providing themselves
* as the template argument, using the curiously recurring template pattern)
- * and override any of the Visit* methods for declaration, type, statement,
- * expression, or other AST nodes where the visitor should customize
- * behavior. Returning "true" from one of these overridden functions will
- * abort the traversal.
+ * and override any of the Visit* methods for declaration, type, statement,
+ * expression, or other AST nodes where the visitor should customize
+ * behavior. Returning "true" from one of these overridden functions will
+ * abort the entire traversal. An overridden Visit* method will not descend
+ * further into the AST for that node unless Base::Visit* is called.
*/
template<typename Derived>
class RecursiveASTVisitor {
public:
+ typedef RecursiveASTVisitor<Derived> Base;
+
/// \brief Return a reference to the derived class.
Derived &getDerived() { return *static_cast<Derived*>(this); }