Various new functions to retrieve cursor information more effective.

src/SourceLocation.cc

@@ -9,6 +9,11 @@ clang::SourceLocation::SourceLocation(CXTranslationUnit &tu, const std::string &
   cx_location = clang_getLocationForOffset(tu, file, offset);
 }
 
+clang::SourceLocation::SourceLocation(CXTranslationUnit &tu, const std::string &filepath, unsigned line, unsigned column) {
+  CXFile file = clang_getFile(tu, filepath.c_str());
+  cx_location = clang_getLocation(tu, file, line, column);
+}
+
 std::string clang::SourceLocation::get_path() {
   std::string path;
   get_data(&path, NULL, NULL, NULL);

src/SourceLocation.h

@@ -17,6 +17,7 @@ namespace clang {
   class SourceLocation {
     friend class TranslationUnit;
     SourceLocation(CXTranslationUnit &tu, const std::string &filepath, unsigned offset);
+    SourceLocation(CXTranslationUnit &tu, const std::string &filepath, unsigned line, unsigned column);
   public:
     SourceLocation(const CXSourceLocation& cx_location) : cx_location(cx_location) {}
 

src/TranslationUnit.cc

@@ -100,7 +100,21 @@ std::unique_ptr<clang::Tokens> clang::TranslationUnit::get_tokens(unsigned start
   return std::unique_ptr<Tokens>(new Tokens(cx_tu, range));
 }
 
+std::unique_ptr<clang::Tokens> clang::TranslationUnit::get_tokens(unsigned start_line, unsigned start_column,
+                                                                  unsigned end_line, unsigned end_column) {
+  auto path=clang::to_string(clang_getTranslationUnitSpelling(cx_tu));
+  clang::SourceLocation start_location(cx_tu, path, start_line, start_column);
+  clang::SourceLocation end_location(cx_tu, path, end_line, end_column);
+  clang::SourceRange range(start_location, end_location);
+  return std::unique_ptr<Tokens>(new Tokens(cx_tu, range));
+}
+
 clang::Cursor clang::TranslationUnit::get_cursor(std::string path, unsigned offset) {
   clang::SourceLocation location(cx_tu, path, offset);
   return Cursor(clang_getCursor(cx_tu, location.cx_location));
 }
+
+clang::Cursor clang::TranslationUnit::get_cursor(std::string path, unsigned line, unsigned column) {
+  clang::SourceLocation location(cx_tu, path, line, column);
+  return Cursor(clang_getCursor(cx_tu, location.cx_location));
+}

src/TranslationUnit.h

@@ -34,10 +34,17 @@ namespace clang {
                const std::map<std::string, std::string> &buffers,
                unsigned flags=DefaultFlags());
                
-    clang::CodeCompleteResults get_code_completions(const std::map<std::string, std::string> &buffers, unsigned line_number, unsigned column);
+    clang::CodeCompleteResults get_code_completions(const std::map<std::string, std::string> &buffers, 
+                                                    unsigned line_number, unsigned column);
+
     std::vector<clang::Diagnostic> get_diagnostics();
+
     std::unique_ptr<Tokens> get_tokens(unsigned start_offset, unsigned end_offset);
+    std::unique_ptr<Tokens> get_tokens(unsigned start_line, unsigned start_column,
+                                       unsigned end_line, unsigned end_column);
+
     clang::Cursor get_cursor(std::string path, unsigned offset);
+    clang::Cursor get_cursor(std::string path, unsigned line, unsigned column);
 
     CXTranslationUnit cx_tu;
   };