abstract visitor

Kirill Golubev · Kirill Golubev · commit e572645a73f3 · 2022-11-12T14:44:11.000+03:00
diff --git a/liquidjava-umbrella/liquidjava-verifier/src/main/java/liquidjava/rj_language/visitors/AbstractExpressionVisitor.java b/liquidjava-umbrella/liquidjava-verifier/src/main/java/liquidjava/rj_language/visitors/AbstractExpressionVisitor.java
@@ -2,7 +2,7 @@
 
 import liquidjava.rj_language.ast.*;
 
-public class AbstractExpressionVisitor implements ExpressionVisitor{
+public abstract class AbstractExpressionVisitor implements ExpressionVisitor{
     @Override
     public void visitAliasInvocation(AliasInvocation ai) {
         ai.getArgs().forEach(a -> a.accept(this));
