/*
 * Copyright 2015 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
 *
 *      https://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.cloud.dataflow.core.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;
	}

	/**
	 * @param includePositionInfo position information is returned as a part of the result if set to true.
	 * @return a string representation of the AST. Useful for debugging/testing.
	 */
	public abstract String stringify(boolean includePositionInfo);

	public String stringify() {
		return stringify(false);
	}
}
