Precedence and RightHand have to represent Output.

diff --git a/Syntax.hpp b/Syntax.hpp
index 7bc5bbe18b75ded521881ff430530c4cb90b368b..f11c2f29b8632c5363e28d176ed3d358492aa2ca 100644 (file)
--- a/Syntax.hpp
+++ b/Syntax.hpp
@@ -896,6 +896,12 @@ struct CYThis :
 struct CYBoolean :
     CYTrivial
 {
+    CYPrecedence(4)
+
+    virtual bool RightHand() const {
+        return true;
+    }
+
     virtual bool Value() const = 0;
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };