Change CXTranslationUnit to not directly cast to an ASTUnit*,

but to wrap both an ASTUnit and a "string pool"
that will be used for fast USR generation.

This requires a bunch of mechanical changes, as
there was a ton of code that assumed that CXTranslationUnit
and ASTUnit* were the same.

Along with this change, introduce CXStringBuf,
which provides an llvm::SmallVector<char> backing
for repeatedly generating CXStrings without a huge
amount of malloc() traffic.  This requires making
some changes to the representation of CXString
by renaming a few fields (but keeping the size
of the object the same).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119337 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 4 deletions

diff --git a/tools/libclang/CIndexCodeCompletion.cpp b/tools/libclang/CIndexCodeCompletion.cpp
index 7e8cdb2c20..d0eb5cc7e3 100644
--- a/tools/libclang/CIndexCodeCompletion.cpp
+++ b/tools/libclang/CIndexCodeCompletion.cpp
@@ -125,7 +125,7 @@ CXString clang_getCompletionChunkText(CXCompletionString completion_string,
   CXStoredCodeCompletionString *CCStr
     = (CXStoredCodeCompletionString *)completion_string;
   if (!CCStr || chunk_number >= CCStr->size())
-    return createCXString(0);
+    return createCXString((const char*)0);
 
   switch ((*CCStr)[chunk_number].Kind) {
   case CodeCompletionString::CK_TypedText:
@@ -156,7 +156,7 @@ CXString clang_getCompletionChunkText(CXCompletionString completion_string,
   }
 
   // Should be unreachable, but let's be careful.
-  return createCXString(0);
+  return createCXString((const char*)0);
 }
 
 
@@ -355,7 +355,7 @@ void clang_codeCompleteAt_Impl(void *UserData) {
 
   bool EnableLogging = getenv("LIBCLANG_CODE_COMPLETION_LOGGING") != 0;
   
-  ASTUnit *AST = static_cast<ASTUnit *>(TU);
+  ASTUnit *AST = static_cast<ASTUnit *>(TU->TUData);
   if (!AST)
     return;
 
@@ -483,7 +483,7 @@ CXCodeCompleteResults *clang_codeCompleteAt(CXTranslationUnit TU,
 
   if (!RunSafely(CRC, clang_codeCompleteAt_Impl, &CCAI)) {
     fprintf(stderr, "libclang: crash detected in code completion\n");
-    static_cast<ASTUnit *>(TU)->setUnsafeToFree(true);
+    static_cast<ASTUnit *>(TU->TUData)->setUnsafeToFree(true);
     return 0;
   }