1 files changed, 41 insertions, 0 deletions
diff --git a/clang/include/clang/Basic/Diagnostic.td b/clang/include/clang/Basic/Diagnostic.td
new file mode 100644
index 00000000000..27f890bdce0
--- /dev/null
+++ b/clang/include/clang/Basic/Diagnostic.td
@@ -0,0 +1,41 @@
+//===--- Diagnostic.td - C Language Family Diagnostic Handling ------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines the TableGen core definitions for the diagnostics
+//  and diagnostic control.
+//
+//===----------------------------------------------------------------------===//
+
+// All diagnostics emitted by the compiler are an indirect subclass of this.
+class Diagnostic<string text> {
+  string Component = ?;
+  string Text = text;
+}
+
+class Error<string text> : Diagnostic<text>;
+class Note<string text> : Diagnostic<text>;
+
+// Anything that can be controlled by an option subclasses this.
+class OptionControlled;
+
+class Warning<string text> : Diagnostic<text>, OptionControlled {
+  string DefaultMapping = "warning";
+}
+// Special cases of warnings.
+class Extension<string text> : Warning<text> {
+  let DefaultMapping = "ignore";
+}
+class ExtWarn<string text> : Warning<text>;
+
+
+
+class Option<string name, list<OptionControlled> members> : OptionControlled {
+  string Name = name;
+  list<OptionControlled> Members = members;
+}