Introduce a new libclang API to determine the parent context of a code

completion item. For example, if the code completion itself represents
a declaration in a namespace (say, std::vector), then this API
retrieves the cursor kind and name of the namespace (std). Implements
<rdar://problem/11121951>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153545 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 15 insertions, 1 deletions

diff --git a/tools/libclang/CIndexCodeCompletion.cpp b/tools/libclang/CIndexCodeCompletion.cpp
index 10f2411320..1b4a7e4800 100644
--- a/tools/libclang/CIndexCodeCompletion.cpp
+++ b/tools/libclang/CIndexCodeCompletion.cpp
@@ -213,7 +213,21 @@ CXString clang_getCompletionAnnotation(CXCompletionString completion_string,
                : createCXString((const char *) 0);
 }
 
-
+CXString
+clang_getCompletionParent(CXCompletionString completion_string,
+                          CXCursorKind *kind) {
+  if (kind)
+    *kind = CXCursor_NotImplemented;
+  
+  CodeCompletionString *CCStr = (CodeCompletionString *)completion_string;
+  if (!CCStr)
+    return createCXString((const char *)0);
+  
+  if (kind)
+    *kind = CCStr->getParentContextKind();
+  return createCXString(CCStr->getParentContextName(), /*DupString=*/false);
+}
+  
 /// \brief The CXCodeCompleteResults structure we allocate internally;
 /// the client only sees the initial CXCodeCompleteResults structure.
 struct AllocatedCXCodeCompleteResults : public CXCodeCompleteResults {