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, 15 insertions, 5 deletions

diff --git a/clang/tools/c-index-test/c-index-test.c b/clang/tools/c-index-test/c-index-test.c
index 795c19c0cb5..81462132251 100644
--- a/clang/tools/c-index-test/c-index-test.c
+++ b/clang/tools/c-index-test/c-index-test.c
@@ -888,11 +888,21 @@ int perform_code_completion(int argc, const char **argv, int timing_only) {
     return -1;
 
   CIdx = clang_createIndex(0, 1);
-  results = clang_codeComplete(CIdx,
-                               argv[argc - 1], argc - num_unsaved_files - 3,
-                               argv + num_unsaved_files + 2,
-                               num_unsaved_files, unsaved_files,
-                               filename, line, column);
+  if (getenv("CINDEXTEST_EDITING")) {
+    CXTranslationUnit *TU = clang_parseTranslationUnit(CIdx, 0,
+                                  argv + num_unsaved_files + 2,
+                                  argc - num_unsaved_files - 2,
+                                  unsaved_files,
+                                  num_unsaved_files,
+                                  getDefaultParsingOptions());
+    results = clang_codeCompleteAt(TU, filename, line, column,
+                                   unsaved_files, num_unsaved_files);
+  } else
+    results = clang_codeComplete(CIdx,
+                                 argv[argc - 1], argc - num_unsaved_files - 3,
+                                 argv + num_unsaved_files + 2,
+                                 num_unsaved_files, unsaved_files,
+                                 filename, line, column);
 
   if (results) {
     unsigned i, n = results->NumResults;