1 ////////////////////////////////////////////////////////////////////////////////
2 // MillScript: an Open Spice interpreter and batch website creation tool
3 // Copyright (C) 2001-2004 Open World Ltd
4 //
5 // This file is part of MillScript.
6 //
7 // MillScript is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU General Public License as published by the Free
9 // Software Foundation; either version 2 of the License, or (at your option)
10 // any later version.
11 //
12 // MillScript is distributed in the hope that it will be useful, but WITHOUT
13 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 // more details.
16 //
17 // You should have received a copy of the GNU General Public License along with
18 // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19 // Place, Suite 330, Boston, MA 02111-1307 USA
20 ////////////////////////////////////////////////////////////////////////////////
21 package org.millscript.millscript.functions;
22
23 import org.millscript.commons.util.IMap;
24 import org.millscript.commons.util.defaults.ConstantMapDefault;
25 import org.millscript.millscript.vm.Machine;
26
27 /**
28 * This class implements the MillScript <code>modDefault</code> function.
29 */
30 public class ModDefaultFunction extends Function {
31
32 /**
33 * @see org.millscript.millscript.functions.Function#apply(org.millscript.millscript.vm.Machine, int)
34 */
35 @Override
36 @SuppressWarnings( "unchecked" )
37 public void apply( final Machine mc, final int nargs ) {
38 if ( nargs == 2 ) {
39 final Object x = mc.popObject();
40 final IMap map = mc.popIMap();
41 map.setDefault( new ConstantMapDefault( x ) );
42 mc.pushObject( map );
43 } else {
44 checkNargs( mc, 2, nargs );
45 }
46 }
47
48 }