Add 'clang_getCursorLanguage' to return the "language" of the AST element (e.g., distinguish between C and Objective-C language features). Currently this only returns results for declarations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101070 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index bfb6481..0ea5f2c 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -936,11 +936,26 @@
};
/**
- * \brief Determine the linkage of the entity referred to be a given cursor.
+ * \brief Determine the linkage of the entity referred to by a given cursor.
*/
CINDEX_LINKAGE enum CXLinkageKind clang_getCursorLinkage(CXCursor cursor);
/**
+ * \brief Describe the "language" of the entity referred to by a cursor.
+ */
+CINDEX_LINKAGE enum CXLanguageKind {
+ CXLanguage_C,
+ CXLanguage_ObjC,
+ CXLanguage_CPlusPlus,
+ CXLanguage_Invalid
+};
+
+/**
+ * \brief Determine the "language" of the entity referred to by a given cursor.
+ */
+CINDEX_LINKAGE enum CXLanguageKind clang_getCursorLanguage(CXCursor cursor);
+
+/**
* @}
*/
diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index d7b6f39..43aa34f 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -2465,6 +2465,69 @@
} // end: extern "C"
//===----------------------------------------------------------------------===//
+// Operations for querying language of a cursor.
+//===----------------------------------------------------------------------===//
+
+static CXLanguageKind getDeclLanguage(const Decl *D) {
+ switch (D->getKind()) {
+ default:
+ break;
+ case Decl::ImplicitParam:
+ case Decl::ObjCAtDefsField:
+ case Decl::ObjCCategory:
+ case Decl::ObjCCategoryImpl:
+ case Decl::ObjCClass:
+ case Decl::ObjCCompatibleAlias:
+ case Decl::ObjCContainer:
+ case Decl::ObjCForwardProtocol:
+ case Decl::ObjCImplementation:
+ case Decl::ObjCInterface:
+ case Decl::ObjCIvar:
+ case Decl::ObjCMethod:
+ case Decl::ObjCProperty:
+ case Decl::ObjCPropertyImpl:
+ case Decl::ObjCProtocol:
+ return CXLanguage_ObjC;
+ case Decl::CXXConstructor:
+ case Decl::CXXConversion:
+ case Decl::CXXDestructor:
+ case Decl::CXXMethod:
+ case Decl::CXXRecord:
+ case Decl::ClassTemplate:
+ case Decl::ClassTemplatePartialSpecialization:
+ case Decl::ClassTemplateSpecialization:
+ case Decl::Friend:
+ case Decl::FriendTemplate:
+ case Decl::FunctionTemplate:
+ case Decl::LinkageSpec:
+ case Decl::Namespace:
+ case Decl::NamespaceAlias:
+ case Decl::NonTypeTemplateParm:
+ case Decl::StaticAssert:
+ case Decl::Template:
+ case Decl::TemplateTemplateParm:
+ case Decl::TemplateTypeParm:
+ case Decl::UnresolvedUsingTypename:
+ case Decl::UnresolvedUsingValue:
+ case Decl::Using:
+ case Decl::UsingDirective:
+ case Decl::UsingShadow:
+ return CXLanguage_CPlusPlus;
+ }
+
+ return CXLanguage_C;
+}
+
+extern "C" {
+CXLanguageKind clang_getCursorLanguage(CXCursor cursor) {
+ if (clang_isDeclaration(cursor.kind))
+ return getDeclLanguage(cxcursor::getCursorDecl(cursor));
+
+ return CXLanguage_Invalid;
+}
+} // end: extern "C"
+
+//===----------------------------------------------------------------------===//
// CXString Operations.
//===----------------------------------------------------------------------===//
diff --git a/tools/CIndex/CIndex.exports b/tools/CIndex/CIndex.exports
index 0fcbf6d..b361168 100644
--- a/tools/CIndex/CIndex.exports
+++ b/tools/CIndex/CIndex.exports
@@ -32,6 +32,7 @@
_clang_getCursorExtent
_clang_getCursorKind
_clang_getCursorKindSpelling
+_clang_getCursorLanguage
_clang_getCursorLinkage
_clang_getCursorLocation
_clang_getCursorReferenced