Introduce serialization and deserialization of diagnostic information

so that CIndex can report diagnostics through the normal mechanisms
even when executing Clang in a separate process. This applies both
when performing code completion and when using ASTs as an intermediary
for clang_createTranslationUnitFromSourceFile().

The serialized format is not perfect at the moment, because it does
not encapsulate macro-instantiation information. Instead, it maps all
source locations back to the instantiation location. However, it does
maintain source-range and fix-it information. To get perfect fidelity
from the serialized format would require serializing a large chunk of
the source manager; at present, it isn't clear if this code will live
long enough for that to matter.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94740 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 0 deletions

diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index 59984e7ee8..15ece68510 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -669,6 +669,9 @@ public:
       ::const_iterator fileinfo_iterator;
   fileinfo_iterator fileinfo_begin() const { return FileInfos.begin(); }
   fileinfo_iterator fileinfo_end() const { return FileInfos.end(); }
+  bool hasFileInfo(const FileEntry *File) const {
+    return FileInfos.find(File) != FileInfos.end();
+  }
 
   /// PrintStats - Print statistics to stderr.
   ///