Add code-completion support directly to ASTUnit, which performs code

completion within the translation unit using the same command-line
arguments for parsing the translation unit. Eventually, we'll reuse
the precompiled preamble to improve code-completion performance, and
this also gives us a place to cache results.

Expose this function via the new libclang function
clang_codeCompleteAt(), which performs the code completion within a
CXTranslationUnit. The completion occurs in-process
(clang_codeCompletion() runs code completion out-of-process).

llvm-svn: 110210

1 files changed, 5 insertions, 3 deletions

diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index 476c79cc37b..52ac8dd6498 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1811,13 +1811,15 @@ static void AddFunctionTypeQualsToCompletionString(CodeCompletionString *Result,
 /// how to use this result, or NULL to indicate that the string or name of the
 /// result is all that is needed.
 CodeCompletionString *
-CodeCompleteConsumer::Result::CreateCodeCompletionString(Sema &S) {
+CodeCompleteConsumer::Result::CreateCodeCompletionString(Sema &S,
+                                               CodeCompletionString *Result) {
   typedef CodeCompletionString::Chunk Chunk;
   
   if (Kind == RK_Pattern)
-    return Pattern->Clone();
+    return Pattern->Clone(Result);
   
-  CodeCompletionString *Result = new CodeCompletionString;
+  if (!Result)
+    Result = new CodeCompletionString;
 
   if (Kind == RK_Keyword) {
     Result->AddTypedTextChunk(Keyword);