/**
 *
 * Copyright 2004 James Strachan
 *
 * 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.codehaus.groovy.antlr;

import antlr.collections.AST;

/**
 * @author <a href="mailto:jstrachan@protique.com">James Strachan</a>
 * @version $Revision: 1916 $
 */
public class ASTRuntimeException extends RuntimeException {
    private AST ast;

    public ASTRuntimeException(AST ast, String message) {
        super(message + description(ast));
        this.ast = ast;
    }

    public ASTRuntimeException(AST ast, String message, Throwable throwable) {
        super(message + description(ast), throwable);
    }

    protected static String description(AST node) {
        return (node != null) ? " at line: " + node.getLine() + " column: " + node.getColumn() : "";
    }

    public AST getAst() {
        return ast;
    }

    public int getLine() {
        return ast != null ? ast.getLine() : -1;
    }

    public int getColumn() {
        return ast != null ? ast.getColumn() : -1;
    }

}