Add clang_getCursorLinkage(), which returns the
underlying linkage for the entity referred to by a
CXCursor.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97646 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index c1238e5..7bc290d 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -889,6 +889,32 @@
CINDEX_LINKAGE unsigned clang_isTranslationUnit(enum CXCursorKind);
/**
+ * \brief Describe the linkage of the entity referred to by a cursor.
+ */
+enum CXLinkageKind {
+ /** \brief This value indicates that no linkage information is available
+ * for a provided CXCursor. */
+ CXLinkage_Invalid,
+ /**
+ * \brief This is the linkage for variables, parameters, and so on that
+ * have automatic storage. This covers normal (non-extern) local variables.
+ */
+ CXLinkage_NoLinkage,
+ /** \brief This is the linkage for static variables and static functions. */
+ CXLinkage_Internal,
+ /** \brief This is the linkage for entities with external linkage that live
+ * in C++ anonymous namespaces.*/
+ CXLinkage_UniqueExternal,
+ /** \brief This is the linkage for entities with true, external linkage. */
+ CXLinkage_External
+};
+
+/**
+ * \brief Determine the linkage of the entity referred to be a given cursor.
+ */
+CINDEX_LINKAGE enum CXLinkageKind clang_getCursorLinkage(CXCursor cursor);
+
+/**
* @}
*/
diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index e13dddf..6fc7b53 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -2210,6 +2210,25 @@
} // end: extern "C"
//===----------------------------------------------------------------------===//
+// Operations for querying linkage of a cursor.
+//===----------------------------------------------------------------------===//
+
+extern "C" {
+CXLinkageKind clang_getCursorLinkage(CXCursor cursor) {
+ Decl *D = cxcursor::getCursorDecl(cursor);
+ if (NamedDecl *ND = dyn_cast_or_null<NamedDecl>(D))
+ switch (ND->getLinkage()) {
+ case NoLinkage: return CXLinkage_NoLinkage;
+ case InternalLinkage: return CXLinkage_Internal;
+ case UniqueExternalLinkage: return CXLinkage_UniqueExternal;
+ case ExternalLinkage: return CXLinkage_External;
+ };
+
+ return CXLinkage_Invalid;
+}
+} // end: extern "C"
+
+//===----------------------------------------------------------------------===//
// CXString Operations.
//===----------------------------------------------------------------------===//