The 'return Diag(...)' idiom should be treated as returning an

invalid expr/stmt, etc.

llvm-svn: 59508

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/include/clang/Parse/Action.h b/clang/include/clang/Parse/Action.h
index 313e86f5c56..215893e2e62 100644
--- a/clang/include/clang/Parse/Action.h
+++ b/clang/include/clang/Parse/Action.h
@@ -34,6 +34,8 @@ namespace clang {
   // Lex.
   class Preprocessor;
   class Token;
+  // Basic.
+  class DiagnosticInfo;
 
 /// Action - As the parser reads the input file and recognizes the productions
 /// of the grammar, it invokes methods on this class to turn the parsed input
@@ -74,6 +76,7 @@ public:
     ActionResult(bool Invalid = false) : Val(0), isInvalid(Invalid) {}
     template<typename ActualExprTy>
     ActionResult(ActualExprTy *val) : Val(val), isInvalid(false) {}
+    ActionResult(const DiagnosticInfo &) : Val(0), isInvalid(true) {}
     
     const ActionResult &operator=(void *RHS) {
       Val = RHS;