Make BuiltinType constructor private, and befriend ASTContext.

This reflects the fact that only ASTContext should ever create an
instance of BuiltinType, and matches what we do for all the other Type
subclasses.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@337048 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/Type.h b/include/clang/AST/Type.h
index b21d9f41276585a6052eea56249c6c9a129e30c4..9e024c12ff88b5fa888730e8b27b957523f039ab 100644 (file)
--- a/include/clang/AST/Type.h
+++ b/include/clang/AST/Type.h
@@ -2253,7 +2253,9 @@ public:
 #include "clang/AST/BuiltinTypes.def"
   };
 
-public:
+private:
+  friend class ASTContext; // ASTContext creates these.
+
   BuiltinType(Kind K)
       : Type(Builtin, QualType(), /*Dependent=*/(K == Dependent),
              /*InstantiationDependent=*/(K == Dependent),
@@ -2262,6 +2264,7 @@ public:
     BuiltinTypeBits.Kind = K;
   }
 
+public:
   Kind getKind() const { return static_cast<Kind>(BuiltinTypeBits.Kind); }
   StringRef getName(const PrintingPolicy &Policy) const;