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.datatypes.ListAwareTools;
24
25 /**
26 * This class implements the action for a <code>++</code> append expression.
27 *
28 * @see org.millscript.millscript.expr.AppendExpr
29 * @see org.millscript.millscript.syntax.AppendSyntax
30 */
31 public final class AppendAction extends BinaryOpAction {
32
33 /**
34 * Constructs a new <code>++</code> action, with the specified actions for
35 * the left and right hand side.
36 *
37 * @param a the action for the left hand side of the expression
38 * @param b the action for the right hand side of the expression
39 */
40 public AppendAction( final Action a, final Action b ) {
41 super( a, b );
42 }
43
44 /**
45 * @see org.millscript.millscript.action.BinaryOpAction#perform(java.lang.Object, java.lang.Object)
46 */
47 @Override
48 public Object perform( final Object x, final Object y ) {
49 return ListAwareTools.append( x, y );
50 }
51
52 }