/*
* Copyright 2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.xd.dirt.stream.dsl;
/**
* Common supertype for the ast nodes built during stream parsing.
*
* @author Andy Clement
*/
public abstract class AstNode {
protected int startpos;
protected int endpos;
public AstNode(int startpos, int endpos) {
this.startpos = startpos;
this.endpos = endpos;
}
public int getStartPos() {
return startpos;
}
public int getEndPos() {
return endpos;
}
/**
* @return a string representation of the AST. Useful for debugging/testing.
*/
public abstract String stringify(boolean includePositionInfo);
public String stringify() {
return stringify(false);
}
}