Result.java

/*
 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

public class Result extends Variable {
    private Exception e;
    private int lineno;

    public Result() {
        super("$result", 0);
        put("$result", this);
    }

    public void setLineno(int lineno) {
        this.lineno = lineno;
    }

    public int getLineno() {
        return lineno;
    }

    public void setException(Exception e) {
        if (this.e != null) {
            throw new RuntimeException("existing exception: " + e, e);
        }
        this.e = e;
    }

    public Exception getException() {
        Exception e = this.e;
        this.e = null;
        return e;
    }
}