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.action;
22
23 import org.millscript.millscript.expr.Ident;
24 import org.millscript.millscript.vm.Machine;
25 import org.millscript.millscript.vm.Ref;
26
27 /**
28 * This class is the base of all actions, for a simple name expression, i.e.
29 * using a variable.
30 *
31 * @see org.millscript.millscript.expr.NameExpr
32 */
33 public abstract class PushAction extends Action {
34
35 /**
36 * The ident for the variable we will be pushing onto the stack.
37 */
38 private Ident id;
39
40 /**
41 * The reference for the value of the ident.
42 */
43 Ref ref;
44
45 /**
46 * Constructs a new push action, to push the value of the specified ident.
47 *
48 * @param i the ident to push the value of
49 */
50 PushAction( final Ident i ) {
51 id = i;
52 ref = id.getRef();
53 }
54
55 /**
56 * @see org.millscript.millscript.action.Action#action(org.millscript.millscript.vm.Machine)
57 */
58 @Override
59 public void action( final Machine mc ) {
60 mc.pushObject( ref.value );
61 }
62
63 }