From 6bb92ecc0a6326aa03e64c94a864b8915f61317f Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Fri, 13 Aug 2010 15:35:05 +0000
Subject: [PATCH] Add an options parameter to clang_saveTranslationUnit,
 because we'll want it later

llvm-svn: 111016
---
 clang/include/clang-c/Index.h                | 33 +++++++++++++++++++-
 clang/tools/c-index-test/c-index-test.c      |  2 +-
 clang/tools/libclang/CIndex.cpp              |  7 ++++-
 clang/tools/libclang/libclang.darwin.exports |  1 +
 clang/tools/libclang/libclang.exports        |  1 +
 5 files changed, 41 insertions(+), 3 deletions(-)

diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 4216e96c604a..ff0d92a38c2f 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -764,6 +764,31 @@ CINDEX_LINKAGE CXTranslationUnit clang_parseTranslationUnit(CXIndex CIdx,
                                                      unsigned num_unsaved_files,
                                                             unsigned options);
   
+/**
+ * \brief Flags that control how translation units are saved.
+ *
+ * The enumerators in this enumeration type are meant to be bitwise
+ * ORed together to specify which options should be used when
+ * saving the translation unit.
+ */
+enum CXSaveTranslationUnit_Flags {
+  /**
+   * \brief Used to indicate that no special saving options are needed.
+   */
+  CXSaveTranslationUnit_None = 0x0
+};
+
+/**
+ * \brief Returns the set of flags that is suitable for saving a translation
+ * unit.
+ *
+ * The set of flags returned provide options for
+ * \c clang_saveTranslationUnit() by default. The returned flag
+ * set contains an unspecified set of options that save translation units with
+ * the most commonly-requested data.
+ */
+CINDEX_LINKAGE unsigned clang_defaultSaveOptions(CXTranslationUnit TU);
+
 /**
  * \brief Saves a translation unit into a serialized representation of
  * that translation unit on disk.
@@ -776,13 +801,19 @@ CINDEX_LINKAGE CXTranslationUnit clang_parseTranslationUnit(CXIndex CIdx,
  * units.
  *
  * \param TU The translation unit to save.
+ *
  * \param FileName The file to which the translation unit will be saved.
  *
+ * \param options A bitmask of options that affects how the translation unit
+ * is saved. This should be a bitwise OR of the
+ * CXSaveTranslationUnit_XXX flags.
+ *
  * \returns Zero if the translation unit was saved successfully, a
  * non-zero value otherwise.
  */
 CINDEX_LINKAGE int clang_saveTranslationUnit(CXTranslationUnit TU,
-                                             const char *FileName);
+                                             const char *FileName,
+                                             unsigned options);
 
 /**
  * \brief Destroy the specified CXTranslationUnit object.
diff --git a/clang/tools/c-index-test/c-index-test.c b/clang/tools/c-index-test/c-index-test.c
index 323469c0f063..ef6bfb8a7974 100644
--- a/clang/tools/c-index-test/c-index-test.c
+++ b/clang/tools/c-index-test/c-index-test.c
@@ -1306,7 +1306,7 @@ int write_pch_file(const char *filename, int argc, const char *argv[]) {
     return 1;
   }
 
-  if (clang_saveTranslationUnit(TU, filename))
+  if (clang_saveTranslationUnit(TU, filename, clang_defaultSaveOptions(TU)))
     fprintf(stderr, "Unable to write PCH file %s\n", filename);
   clang_disposeTranslationUnit(TU);
   free_remapped_files(unsaved_files, num_unsaved_files);
diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 4ba41b55cbbe..93fdd96c2416 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -1454,7 +1454,12 @@ CXTranslationUnit clang_parseTranslationUnit(CXIndex CIdx,
   return ATU;
 }
 
-int clang_saveTranslationUnit(CXTranslationUnit TU, const char *FileName) {
+unsigned clang_defaultSaveOptions(CXTranslationUnit TU) {
+  return CXSaveTranslationUnit_None;
+}  
+  
+int clang_saveTranslationUnit(CXTranslationUnit TU, const char *FileName,
+                              unsigned options) {
   if (!TU)
     return 1;
   
diff --git a/clang/tools/libclang/libclang.darwin.exports b/clang/tools/libclang/libclang.darwin.exports
index f8f440203885..444d669e67b3 100644
--- a/clang/tools/libclang/libclang.darwin.exports
+++ b/clang/tools/libclang/libclang.darwin.exports
@@ -17,6 +17,7 @@ _clang_defaultCodeCompleteOptions
 _clang_defaultEditingTranslationUnitOptions
 _clang_defaultDiagnosticDisplayOptions
 _clang_defaultReparseOptions
+_clang_defaultSaveOptions
 _clang_disposeCodeCompleteResults
 _clang_disposeDiagnostic
 _clang_disposeIndex
diff --git a/clang/tools/libclang/libclang.exports b/clang/tools/libclang/libclang.exports
index cdb04bc93463..a1e114afd919 100644
--- a/clang/tools/libclang/libclang.exports
+++ b/clang/tools/libclang/libclang.exports
@@ -17,6 +17,7 @@ clang_defaultCodeCompleteOptions
 clang_defaultEditingTranslationUnitOptions
 clang_defaultDiagnosticDisplayOptions
 clang_defaultReparseOptions
+clang_defaultSaveOptions
 clang_disposeCodeCompleteResults
 clang_disposeDiagnostic
 clang_disposeIndex