clang-c: Add the clang_getCursorVisibility() API

This patch adds an API for querying the visibility of the entity
referred to by a cursor.

Patch by Michael Wu <mwu@mozilla.com>.

llvm-svn: 271292

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 1aeb3a6397e..78df3ce264c 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -6817,6 +6817,27 @@ CXLinkageKind clang_getCursorLinkage(CXCursor cursor) {
 } // end: extern "C"
 
 //===----------------------------------------------------------------------===//
+// Operations for querying visibility of a cursor.
+//===----------------------------------------------------------------------===//
+
+extern "C" {
+CXVisibilityKind clang_getCursorVisibility(CXCursor cursor) {
+  if (!clang_isDeclaration(cursor.kind))
+    return CXVisibility_Invalid;
+
+  const Decl *D = cxcursor::getCursorDecl(cursor);
+  if (const NamedDecl *ND = dyn_cast_or_null<NamedDecl>(D))
+    switch (ND->getVisibility()) {
+      case HiddenVisibility: return CXVisibility_Hidden;
+      case ProtectedVisibility: return CXVisibility_Protected;
+      case DefaultVisibility: return CXVisibility_Default;
+    };
+
+  return CXVisibility_Invalid;
+}
+} // end: extern "C"
+
+//===----------------------------------------------------------------------===//
 // Operations for querying language of a cursor.
 //===----------------------------------------------------------------------===//