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.expr;
22
23 import org.millscript.millscript.action.SkipAction;
24 import org.millscript.millscript.vm.CompilerState;
25
26 /**
27 * This class implements a skip expression. This is used where an expression is
28 * required, but one has not been specified. e.g. when applying a function with
29 * no arguments. This expression never returns any results.
30 *
31 * @see SkipAction
32 */
33 public final class SkipExpr extends Expr< SkipAction > implements ZeroResults {
34
35 /**
36 * @see org.millscript.millscript.expr.Expr#compileIt()
37 */
38 @Override
39 public SkipAction compileIt() {
40 return new SkipAction();
41 }
42
43 /**
44 * @see org.millscript.millscript.expr.Expr#resolve(org.millscript.millscript.vm.CompilerState)
45 */
46 @Override
47 public void resolve( final CompilerState state ) {
48 }
49
50 }