[libclang] Add infrastructure to be able to only deserialize decls in a file region and

use it for clang_getCursor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143605 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/clang/Frontend/ASTUnit.h b/include/clang/Frontend/ASTUnit.h
index cbd293f72e..26828a4427 100644
--- a/include/clang/Frontend/ASTUnit.h
+++ b/include/clang/Frontend/ASTUnit.h
@@ -519,6 +519,12 @@ public:
   /// \brief Add a new local file-level declaration.
   void addFileLevelDecl(Decl *D);
 
+  /// \brief Get the decls that are contained in a file in the Offset/Length
+  /// range. \arg Length can be 0 to indicate a point at \arg Offset instead of
+  /// a range. 
+  void findFileRegionDecls(FileID File, unsigned Offset, unsigned Length,
+                           SmallVectorImpl<Decl *> &Decls);
+
   /// \brief Add a new top-level declaration, identified by its ID in
   /// the precompiled preamble.
   void addTopLevelDeclFromPreamble(serialization::DeclID D) {