Add a hasExternalLinkage helper. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176607 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index 68d7d56585..d969acd807 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -214,6 +214,11 @@ public:
   /// \brief Determine what kind of linkage this entity has.
   Linkage getLinkage() const;
 
+  /// \brief True if this decl has external linkage.
+  bool hasExternalLinkage() const {
+    return getLinkage() == ExternalLinkage;
+  }
+
   /// \brief Determines the visibility of this entity.
   Visibility getVisibility() const {
     return getLinkageAndVisibility().getVisibility();