From 877524918a126cb18f07443c357e6c51177f5982 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Fri, 22 Jan 2010 20:35:53 +0000
Subject: [PATCH] Eliminate CIndex's dependency on the Clang Index library,
 since we weren't actually using any of its facilities.

llvm-svn: 94210
---
 clang/tools/CIndex/CIndex.cpp     |  2 +-
 clang/tools/CIndex/CIndexUSRs.cpp |  4 ----
 clang/tools/CIndex/CIndexer.h     | 16 ++++------------
 clang/tools/CIndex/CMakeLists.txt |  3 +--
 clang/tools/CIndex/Makefile       |  2 +-
 5 files changed, 7 insertions(+), 20 deletions(-)

diff --git a/clang/tools/CIndex/CIndex.cpp b/clang/tools/CIndex/CIndex.cpp
index 3447553ae3fd..78fdaceb2cef 100644
--- a/clang/tools/CIndex/CIndex.cpp
+++ b/clang/tools/CIndex/CIndex.cpp
@@ -834,7 +834,7 @@ CXString CIndexer::createCXString(const char *String, bool DupString){
 extern "C" {
 CXIndex clang_createIndex(int excludeDeclarationsFromPCH,
                           int displayDiagnostics) {
-  CIndexer *CIdxr = new CIndexer(new Program());
+  CIndexer *CIdxr = new CIndexer();
   if (excludeDeclarationsFromPCH)
     CIdxr->setOnlyLocalDecls();
   if (displayDiagnostics)
diff --git a/clang/tools/CIndex/CIndexUSRs.cpp b/clang/tools/CIndex/CIndexUSRs.cpp
index e7f852900212..fd605fb68d1b 100644
--- a/clang/tools/CIndex/CIndexUSRs.cpp
+++ b/clang/tools/CIndex/CIndexUSRs.cpp
@@ -17,10 +17,6 @@
 #include "llvm/ADT/SmallString.h"
 #include "llvm/Support/raw_ostream.h"
 
-static inline Program &GetProgram(CXIndex CIdx) {
-  return ((CIndexer*) CIdx)->getProgram();
-}
-
 //===----------------------------------------------------------------------===//
 // USR generation.
 //===----------------------------------------------------------------------===//
diff --git a/clang/tools/CIndex/CIndexer.h b/clang/tools/CIndex/CIndexer.h
index 4f3cd8b85f71..1a4e4b7b8f0b 100644
--- a/clang/tools/CIndex/CIndexer.h
+++ b/clang/tools/CIndex/CIndexer.h
@@ -16,10 +16,6 @@
 #define LLVM_CLANG_CINDEXER_H
 
 #include "clang-c/Index.h"
-#include "clang/Index/ASTLocation.h"
-#include "clang/Index/Indexer.h"
-#include "clang/Index/Program.h"
-#include "clang/Index/Utils.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Frontend/ASTUnit.h"
 #include "llvm/System/Path.h"
@@ -34,7 +30,7 @@ public:
   virtual void HandleDiagnostic(Diagnostic::Level, const DiagnosticInfo &) {}
 };
 
-class CIndexer : public Indexer {
+class CIndexer {
   DiagnosticOptions DiagOpts;
   IgnoreDiagnosticsClient IgnoreDiagClient;
   llvm::OwningPtr<Diagnostic> TextDiags;
@@ -46,16 +42,12 @@ class CIndexer : public Indexer {
   llvm::sys::Path ClangPath;
   
 public:
-  explicit CIndexer(Program *prog) : Indexer(*prog),
-    IgnoreDiags(&IgnoreDiagClient),
-    UseExternalASTGeneration(false),
-    OnlyLocalDecls(false),
-    DisplayDiagnostics(false) {
+  CIndexer() : IgnoreDiags(&IgnoreDiagClient), UseExternalASTGeneration(false),
+               OnlyLocalDecls(false), DisplayDiagnostics(false) 
+  {
     TextDiags.reset(CompilerInstance::createDiagnostics(DiagOpts, 0, 0));
   }
   
-  virtual ~CIndexer() { delete &getProgram(); }
-  
   /// \brief Whether we only want to see "local" declarations (that did not
   /// come from a previous precompiled header). If false, we want to see all
   /// declarations.
diff --git a/clang/tools/CIndex/CMakeLists.txt b/clang/tools/CIndex/CMakeLists.txt
index c667df622f76..730eaafb5a2e 100644
--- a/clang/tools/CIndex/CMakeLists.txt
+++ b/clang/tools/CIndex/CMakeLists.txt
@@ -3,8 +3,7 @@ set(SHARED_LIBRARY TRUE)
 set(LLVM_NO_RTTI 1)
 
 set(LLVM_USED_LIBS
-  clangIndex
-  clangFrontend
+ clangFrontend
   clangDriver
   clangSema
   clangAnalysis
diff --git a/clang/tools/CIndex/Makefile b/clang/tools/CIndex/Makefile
index 94f04670000d..7bdbba172f2c 100644
--- a/clang/tools/CIndex/Makefile
+++ b/clang/tools/CIndex/Makefile
@@ -22,7 +22,7 @@ LINK_LIBS_IN_SHARED = 1
 SHARED_LIBRARY = 1
 
 LINK_COMPONENTS := bitreader mc core
-USEDLIBS = clangIndex.a clangFrontend.a clangDriver.a clangSema.a \
+USEDLIBS = clangFrontend.a clangDriver.a clangSema.a \
 	   clangAnalysis.a clangAST.a clangParse.a clangLex.a clangBasic.a
 
 include $(LEVEL)/Makefile.common