[cfe-commits] r68883 - in /cfe/trunk: include/clang/Lex/PPCallbacks.h lib/Lex/PPDirectives.cpp

[Chris Lattner]

Author: lattner
Date: Sat Apr 11 20:39:54 2009
New Revision: 68883

URL: http://llvm.org/viewvc/llvm-project?rev=68883&view=rev
Log:
add a ppcallback hook for macro definitions.

Modified:
    cfe/trunk/include/clang/Lex/PPCallbacks.h
    cfe/trunk/lib/Lex/PPDirectives.cpp

Modified: cfe/trunk/include/clang/Lex/PPCallbacks.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/PPCallbacks.h?rev=68883&r1=68882&r2=68883&view=diff

==============================================================================
--- cfe/trunk/include/clang/Lex/PPCallbacks.h (original)
+++ cfe/trunk/include/clang/Lex/PPCallbacks.h Sat Apr 11 20:39:54 2009
@@ -55,10 +55,15 @@
                              const std::string &Str) {
   }
   
-  /// MacroExpands - This is called Preprocessor::HandleMacroExpandedIdentifier
-  /// when a macro invocation is found.
+  /// MacroExpands - This is called by
+  /// Preprocessor::HandleMacroExpandedIdentifier when a macro invocation is
+  /// found.
   virtual void MacroExpands(const Token &Id, const MacroInfo* MI) {
   }
+  
+  /// MacroDefined - This hook is called whenever a macro definition is seen.
+  virtual void MacroDefined(const IdentifierInfo *II, const MacroInfo *MI) {
+  }
 };
 
 }  // end namespace clang

Modified: cfe/trunk/lib/Lex/PPDirectives.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPDirectives.cpp?rev=68883&r1=68882&r2=68883&view=diff

==============================================================================
--- cfe/trunk/lib/Lex/PPDirectives.cpp (original)
+++ cfe/trunk/lib/Lex/PPDirectives.cpp Sat Apr 11 20:39:54 2009
@@ -1402,6 +1402,10 @@
   }
   
   setMacroInfo(MacroNameTok.getIdentifierInfo(), MI);
+  
+  // If the callbacks want to know, tell them about the macro definition.
+  if (Callbacks)
+    Callbacks->MacroDefined(MacroNameTok.getIdentifierInfo(), MI);
 }
 
 /// HandleUndefDirective - Implements #undef.