Add a preprocessor callback that is invoked every time the 'defined'
operator is seen, from Jason Haslam!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141926 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PPExpressions.cpp b/lib/Lex/PPExpressions.cpp
index 66a12ec..84156d5 100644
--- a/lib/Lex/PPExpressions.cpp
+++ b/lib/Lex/PPExpressions.cpp
@@ -117,6 +117,10 @@
PP.markMacroAsUsed(Macro);
}
+ // Invoke the 'defined' callback.
+ if (PPCallbacks *Callbacks = PP.getPPCallbacks())
+ Callbacks->Defined(PeekTok);
+
// If we are in parens, ensure we have a trailing ).
if (LParenLoc.isValid()) {
// Consume identifier.