From: John McCall <rjmccall@apple.com>
Date: Fri, 17 Feb 2012 03:32:17 +0000 (+0000)
Subject: Add a castAs<U> accessor to CanQual<T>.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=84fa9cd13c2b260937625b6ad7445af7f7648565;p=clang

Add a castAs<U> accessor to CanQual<T>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150786 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/CanonicalType.h b/include/clang/AST/CanonicalType.h
index 38e6b41977..6cce88868d 100644
--- a/include/clang/AST/CanonicalType.h
+++ b/include/clang/AST/CanonicalType.h
@@ -108,6 +108,8 @@ public:
   /// or a derived class thereof, a NULL canonical type.
   template<typename U> CanProxy<U> getAs() const;
 
+  template<typename U> CanProxy<U> castAs() const;
+
   /// \brief Overloaded arrow operator that produces a canonical type
   /// proxy.
   CanProxy<T> operator->() const;
@@ -752,6 +754,13 @@ CanProxy<U> CanQual<T>::getAs() const {
   return CanProxy<U>();
 }
 
+template<typename T>
+template<typename U>
+CanProxy<U> CanQual<T>::castAs() const {
+  assert(!Stored.isNull() && isa<U>(Stored.getTypePtr()));
+  return CanQual<U>::CreateUnsafe(Stored);
+}
+
 template<typename T>
 CanProxy<T> CanQual<T>::operator->() const {
   return CanProxy<T>(*this);