add line numbers to symbols

3 files changed, 29 insertions, 0 deletions

diff --git a/include/pdb/dbghelp.hpp b/include/pdb/dbghelp.hpp
index d6b6899..2555de1 100644
--- a/include/pdb/dbghelp.hpp
+++ b/include/pdb/dbghelp.hpp
@@ -32,6 +32,8 @@ namespace pdb
         SymbolInfo resolve_symbol(Address) const;
         SymbolInfo resolve_symbol(const std::string&) const;
 
+        LineInfo resolve_line(Address) const;
+
     private:
         ModuleInfo get_module_info(Address offline_base) const;
 
diff --git a/include/pdb/repo.hpp b/include/pdb/repo.hpp
index dd41b17..c8a2964 100644
--- a/include/pdb/repo.hpp
+++ b/include/pdb/repo.hpp
@@ -33,6 +33,8 @@ namespace pdb
         Symbol resolve_symbol(Address) const;
         Symbol resolve_symbol(const std::string&) const;
 
+        LineInfo resolve_line(Address) const;
+
         const Module& module_with_online_base(Address) const;
         const Module& module_with_offline_base(Address) const;
 
diff --git a/include/pdb/symbol.hpp b/include/pdb/symbol.hpp
index fc200c7..81a40e3 100644
--- a/include/pdb/symbol.hpp
+++ b/include/pdb/symbol.hpp
@@ -111,4 +111,29 @@ namespace pdb
     private:
         const Address online_address;
     };
+
+    class LineInfo
+    {
+    public:
+        typedef IMAGEHLP_LINE64 Raw;
+
+        explicit LineInfo(const Raw& raw)
+            : file_path{raw.FileName}
+            , line_number{cast_line_number(raw.LineNumber)}
+        { }
+
+        const std::string file_path;
+        const unsigned long line_number;
+
+    private:
+        static unsigned long cast_line_number(DWORD raw)
+        {
+            unsigned long dest = 0;
+
+            if (!msl::utilities::SafeCast(raw, dest))
+                throw std::runtime_error{"invalid line number"};
+
+            return dest;
+        }
+    };
 }