53 lines
1.5 KiB
Java
53 lines
1.5 KiB
Java
/**
|
|
* Serene (simple) - A PoC lisp to collect data on Serenes concepts
|
|
* Copyright (C) 2019-2020 Sameer Rahmani <lxsameer@gnu.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program 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 for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301, USA.
|
|
*/
|
|
package serene.simple.builtin;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Collections;
|
|
|
|
import serene.simple.IDoc;
|
|
import serene.simple.IScope;
|
|
import serene.simple.ListNode;
|
|
import serene.simple.SereneException;
|
|
|
|
|
|
public class DocFn extends AFn {
|
|
public String fnName() {
|
|
return "doc";
|
|
};
|
|
|
|
public Object eval(IScope scope) throws SereneException{
|
|
ArrayList<Object> args = (ArrayList<Object>) this.arguments();
|
|
|
|
if (args.size() != 1) {
|
|
throw new SereneException("'doc' expect 1 parameter only.");
|
|
}
|
|
|
|
Object obj = args.get(0);
|
|
|
|
if (obj instanceof IDoc) {
|
|
return ((IDoc) obj).getDoc();
|
|
}
|
|
else {
|
|
return null;
|
|
}
|
|
}
|
|
}
|