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.vm.Machine;
24
25 /**
26 * This class represents a for loop while condition action. A while condition
27 * loops while the expression is true, then executes the termination expression
28 * and terminates the loop.
29 */
30 public final class ForConditionWhileAction extends ForConditionAction {
31
32 /**
33 * The while condition action.
34 */
35 Action whileAction;
36
37 /**
38 * Constructs a new while condition action, with the supplied condition
39 * and termination action.
40 *
41 * @param a the while condition action
42 * @param b the termination(finally) action
43 */
44 public ForConditionWhileAction( final Action a, final Action b ) {
45 whileAction = a;
46 setFinallyAction( b );
47 }
48
49 /**
50 * @see org.millscript.millscript.action.ForConditionAction#getForIterator(org.millscript.millscript.vm.Machine)
51 */
52 @Override
53 ForIterator getForIterator( final Machine mc ) {
54 return new ForIterator() {
55 @Override
56 public void bindAction( final Machine mc2 ) {
57 // This is a condition, not a binding.
58 }
59 @Override
60 public boolean hasNext() {
61 // Execute the while condition action.
62 return whileAction.predAct( mc );
63 }
64 };
65 }
66
67 }