KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > aspectj > compiler > base > ast > EmptyExpr


1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2  *
3  * This file is part of the compiler and core tools for the AspectJ(tm)
4  * programming language; see http://aspectj.org
5  *
6  * The contents of this file are subject to the Mozilla Public License
7  * Version 1.1 (the "License"); you may not use this file except in
8  * compliance with the License. You may obtain a copy of the License at
9  * either http://www.mozilla.org/MPL/ or http://aspectj.org/MPL/.
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is AspectJ.
17  *
18  * The Initial Developer of the Original Code is Xerox Corporation. Portions
19  * created by Xerox Corporation are Copyright (C) 1999-2002 Xerox Corporation.
20  * All Rights Reserved.
21  *
22  * Contributor(s):
23  */
24
25 package org.aspectj.compiler.base.ast;
26
27 import org.aspectj.compiler.base.FlowCheckerPass;
28 import org.aspectj.compiler.base.JavaCompiler;
29 import org.aspectj.compiler.base.CodeWriter;
30 import java.io.IOException JavaDoc;
31
32 import org.aspectj.compiler.base.bcg.CodeBuilder;
33
34 /**
35   * @grammar ''
36   */
37
38 public class EmptyExpr extends Expr {
39
40
41     public Type discoverType() { return getTypeManager().anyType; }
42
43     public void unparse(CodeWriter writer) throws IOException JavaDoc {
44     }
45
46     // ------------------------------
47 // bcg
48 protected void cgValue(CodeBuilder cb) {}
49
50     //BEGIN: Generated from @child and @property
51
52     public EmptyExpr(SourceLocation location) {
53         super(location);
54
55     }
56
57     public ASTObject copyWalk(CopyWalker walker) {
58         EmptyExpr ret = new EmptyExpr(getSourceLocation());
59         ret.preCopy(walker, this);
60
61         return ret;
62     }
63
64
65     public String JavaDoc getDefaultDisplayName() {
66         return "EmptyExpr()";
67     }
68
69     //END: Generated from @child and @property
70 }
71
72
73
Popular Tags