[libclang] Have clang_getCXXAccessSpecifier() also return the access control of a C++ declaration within its parent scope.

Suggested by Stefan Seefeld.

llvm-svn: 179297

clang/include/clang-c/Index.h

@@ -2995,9 +2995,10 @@ enum CX_CXXAccessSpecifier {
 };
 
 /**
- * \brief Returns the access control level for the C++ base specifier
- * represented by a cursor with kind CXCursor_CXXBaseSpecifier or
- * CXCursor_AccessSpecifier.
+ * \brief Returns the access control level for the referenced object.
+ * If the cursor refers to a C++ declaration, its access control level within its
+ * parent scope is returned. Otherwise, if the cursor refers to a base specifier or
+ * access specifier, the specifier itself is returned.
  */
 CINDEX_LINKAGE enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor);
 

clang/test/Index/load-classes.cpp

@@ -3,7 +3,9 @@
 struct X {
   X(int value);
   X(const X& x);
+protected:
   ~X();
+private:
   operator X*();
 };
 
@@ -11,18 +13,18 @@ X::X(int value) {
 }
 
 // RUN: c-index-test -test-load-source all %s | FileCheck %s
-// CHECK: load-classes.cpp:3:8: StructDecl=X:3:8 (Definition) Extent=[3:1 - 8:2]
-// CHECK: load-classes.cpp:4:3: CXXConstructor=X:4:3 Extent=[4:3 - 4:15]
+// CHECK: load-classes.cpp:3:8: StructDecl=X:3:8 (Definition) Extent=[3:1 - 10:2]
+// CHECK: load-classes.cpp:4:3: CXXConstructor=X:4:3 Extent=[4:3 - 4:15] [access=public]
 // FIXME: missing TypeRef in the constructor name
 // CHECK: load-classes.cpp:4:9: ParmDecl=value:4:9 (Definition) Extent=[4:5 - 4:14]
-// CHECK: load-classes.cpp:5:3: CXXConstructor=X:5:3 Extent=[5:3 - 5:16]
+// CHECK: load-classes.cpp:5:3: CXXConstructor=X:5:3 Extent=[5:3 - 5:16] [access=public]
 // FIXME: missing TypeRef in the constructor name
 // CHECK: load-classes.cpp:5:14: ParmDecl=x:5:14 (Definition) Extent=[5:5 - 5:15]
 // CHECK: load-classes.cpp:5:11: TypeRef=struct X:3:8 Extent=[5:11 - 5:12]
-// CHECK: load-classes.cpp:6:3: CXXDestructor=~X:6:3 Extent=[6:3 - 6:7]
+// CHECK: load-classes.cpp:7:3: CXXDestructor=~X:7:3 Extent=[7:3 - 7:7] [access=protected]
 // FIXME: missing TypeRef in the destructor name
-// CHECK: load-classes.cpp:7:3: CXXConversion=operator struct X *:7:3 Extent=[7:3 - 7:16]
-// CHECK: load-classes.cpp:7:12: TypeRef=struct X:3:8 Extent=[7:12 - 7:13]
-// CHECK: load-classes.cpp:10:4: CXXConstructor=X:10:4 (Definition) Extent=[10:1 - 11:2]
-// CHECK: load-classes.cpp:10:1: TypeRef=struct X:3:8 Extent=[10:1 - 10:2]
-// CHECK: load-classes.cpp:10:10: ParmDecl=value:10:10 (Definition) Extent=[10:6 - 10:15]
+// CHECK: load-classes.cpp:9:3: CXXConversion=operator struct X *:9:3 Extent=[9:3 - 9:16] [access=private]
+// CHECK: load-classes.cpp:9:12: TypeRef=struct X:3:8 Extent=[9:12 - 9:13]
+// CHECK: load-classes.cpp:12:4: CXXConstructor=X:12:4 (Definition) Extent=[12:1 - 13:2] [access=public]
+// CHECK: load-classes.cpp:12:1: TypeRef=struct X:3:8 Extent=[12:1 - 12:2]
+// CHECK: load-classes.cpp:12:10: ParmDecl=value:12:10 (Definition) Extent=[12:6 - 12:15]

clang/tools/c-index-test/c-index-test.c

@@ -934,6 +934,23 @@ enum CXChildVisitResult FilteredPrintingVisitor(CXCursor Cursor,
            GetCursorSource(Cursor), line, column);
     PrintCursor(Cursor, &Data->ValidationData);
     PrintCursorExtent(Cursor);
+    if (clang_isDeclaration(Cursor.kind)) {
+      enum CX_CXXAccessSpecifier access = clang_getCXXAccessSpecifier(Cursor);
+      const char *accessStr = 0;
+
+      switch (access) {
+        case CX_CXXInvalidAccessSpecifier: break;
+        case CX_CXXPublic:
+          accessStr = "public"; break;
+        case CX_CXXProtected:
+          accessStr = "protected"; break;
+        case CX_CXXPrivate:
+          accessStr = "private"; break;
+      }
+
+      if (accessStr)
+        printf(" [access=%s]", accessStr);
+    }
     printf("\n");
     return CXChildVisit_Recurse;
   }

clang/tools/libclang/CIndexCXX.cpp

@@ -33,7 +33,7 @@ unsigned clang_isVirtualBase(CXCursor C) {
 enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor C) {
   AccessSpecifier spec = AS_none;
 
-  if (C.kind == CXCursor_CXXAccessSpecifier)
+  if (C.kind == CXCursor_CXXAccessSpecifier || clang_isDeclaration(C.kind))
     spec = getCursorDecl(C)->getAccess();
   else if (C.kind == CXCursor_CXXBaseSpecifier)
     spec = getCursorCXXBaseSpecifier(C)->getAccessSpecifier();