diff --git a/lib/Debugger/SourceLanguage.cpp b/lib/Debugger/SourceLanguage.cpp
new file mode 100644
index 0000000..8e4b4e0
--- /dev/null
+++ b/lib/Debugger/SourceLanguage.cpp
@@ -0,0 +1,54 @@
+//===-- SourceLanguage.cpp - Implement the SourceLanguage class -----------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the SourceLanguage class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Debugger/SourceLanguage.h"
+#include "llvm/Debugger/ProgramInfo.h"
+using namespace llvm;
+
+const SourceLanguage &SourceLanguage::get(unsigned ID) {
+  switch (ID) {
+  case 1:  // DW_LANG_C89
+  case 2:  // DW_LANG_C
+  case 12: // DW_LANG_C99
+    return getCFamilyInstance();
+
+  case 4:  // DW_LANG_C_plus_plus
+    return getCPlusPlusInstance();
+
+  case 3:  // DW_LANG_Ada83
+  case 5:  // DW_LANG_Cobol74
+  case 6:  // DW_LANG_Cobol85
+  case 7:  // DW_LANG_Fortran77
+  case 8:  // DW_LANG_Fortran90
+  case 9:  // DW_LANG_Pascal83
+  case 10: // DW_LANG_Modula2
+  case 11: // DW_LANG_Java
+  case 13: // DW_LANG_Ada95
+  case 14: // DW_LANG_Fortran95
+  default:
+    return getUnknownLanguageInstance();
+  }
+}
+
+
+SourceFileInfo *
+SourceLanguage::createSourceFileInfo(const GlobalVariable *Desc,
+                                     ProgramInfo &PI) const {
+  return new SourceFileInfo(Desc, *this);
+}
+
+SourceFunctionInfo *
+SourceLanguage::createSourceFunctionInfo(const GlobalVariable *Desc,
+                                         ProgramInfo &PI) const {
+  return new SourceFunctionInfo(PI, Desc);
+}