diff --git a/include/xo/parser/parser.hpp b/include/xo/parser/parser.hpp
index bbb0a584..4fd65ec5 100644
--- a/include/xo/parser/parser.hpp
+++ b/include/xo/parser/parser.hpp
@@ -134,18 +134,23 @@ namespace xo {
         class expraction {
         public:
             expraction() = default;
-            explicit expraction(expractiontype action_type,
-                                const exprir & expr_ir)
-                : action_type_{action_type}, expr_ir_{expr_ir}
+            explicit expraction(expractiontype action_type
+#ifdef OBSOLETE
+                                const exprir & expr_ir
+#endif
+                )
+                : action_type_{action_type}
+#ifdef OBSOLETE
+                , expr_ir_{expr_ir}
+#endif
                 {}
 
             static expraction keep();
-#ifdef OBSOLETE
-            static expraction emit(const exprir & ir);
-#endif
 
             expractiontype action_type() const { return action_type_; }
+#ifdef OBSOLETE
             const exprir & expr_ir() const { return expr_ir_; }
+#endif
 
             void print(std::ostream & os) const;
 
@@ -158,10 +163,12 @@ namespace xo {
              * pop:  drop exprstate,  report exprir to parent
              **/
             expractiontype action_type_ = expractiontype::invalid;
+#ifdef OBSOLETE
             /**
              * intermediate representation (pass to enclosing stack state)
              **/
             exprir expr_ir_;
+#endif
         };
 
         inline std::ostream &
diff --git a/src/parser/parser.cpp b/src/parser/parser.cpp
index 3a0eaaf9..ad87f680 100644
--- a/src/parser/parser.cpp
+++ b/src/parser/parser.cpp
@@ -96,23 +96,13 @@ namespace xo {
 
         expraction
         expraction::keep() {
-            return expraction(expractiontype::keep,
-                              exprir());
+            return expraction(expractiontype::keep);
         }
 
-#ifdef OBSOLETE
-        expraction
-        expraction::emit(const exprir & ir) {
-            return expraction(expractiontype::emit,
-                              ir);
-        }
-#endif
-
         void
         expraction::print(std::ostream & os) const {
             os << "<expraction";
             os << xtag("type", action_type_);
-            os << xtag("ir", expr_ir_);
             os << ">";
         }