package Ann.Absyn; // Java Package generated by the BNF Converter. public abstract class Op implements java.io.Serializable { public abstract R accept(Op.Visitor v, A arg); public interface Visitor { public R visit(Ann.Absyn.Times p, A arg); public R visit(Ann.Absyn.Div p, A arg); public R visit(Ann.Absyn.Plus p, A arg); public R visit(Ann.Absyn.Minus p, A arg); } }