net.sandius.rembulan.parser.ast.SyntaxElement Maven / Gradle / Ivy

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/*
 * Copyright 2016 Miroslav Janíček
 *
 * 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 net.sandius.rembulan.parser.ast;

import net.sandius.rembulan.util.Check;

public abstract class SyntaxElement {

	private final Attributes attr;

	protected SyntaxElement(Attributes attr) {
		this.attr = Check.notNull(attr);
	}

	public SourceInfo sourceInfo() {
		return attr.get(SourceInfo.class);
	}

	public int line() {
		SourceInfo si = sourceInfo();
		return si != null ? si.line() : 0;
	}

	public Attributes attributes() {
		return attr;
	}

}