/* * @(#)Expression.java 2.1 2003/10/07 * * Copyright (C) 1999, 2003 D.A. Watt and D.F. Brown * Dept. of Computing Science, University of Glasgow, Glasgow G12 8QQ Scotland * and School of Computer and Math Sciences, The Robert Gordon University, * St. Andrew Street, Aberdeen AB25 1HG, Scotland. * All rights reserved. * * This software is provided free for educational use only. It may * not be used for commercial purposes without the prior written permission * of the authors. */ package triangle.abstractSyntaxTrees.expressions; import triangle.abstractSyntaxTrees.AbstractSyntaxTree; import triangle.abstractSyntaxTrees.types.TypeDenoter; import triangle.abstractSyntaxTrees.visitors.ExpressionVisitor; import triangle.syntacticAnalyzer.SourcePosition; public abstract class Expression extends AbstractSyntaxTree { public Expression(SourcePosition position) { super(position); type = null; } public TypeDenoter type; public abstract TResult visit(ExpressionVisitor visitor, TArg arg); public TResult visit(ExpressionVisitor visitor) { return visit(visitor, null); } }