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Java > Open Source Codes > javassist > compiler > ast > NewExpr


1 /*
2  * Javassist, a Java-bytecode translator toolkit.
3  * Copyright (C) 1999-2005 Shigeru Chiba. All Rights Reserved.
4  *
5  * The contents of this file are subject to the Mozilla Public License Version
6  * 1.1 (the "License"); you may not use this file except in compliance with
7  * the License. Alternatively, the contents of this file may be used under
8  * the terms of the GNU Lesser General Public License Version 2.1 or later.
9  *
10  * Software distributed under the License is distributed on an "AS IS" basis,
11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12  * for the specific language governing rights and limitations under the
13  * License.
14  */
15
16 package javassist.compiler.ast;
17
18 import javassist.compiler.TokenId;
19 import javassist.compiler.CompileError;
20
21 /**
22  * New Expression.
23  */
24 public class NewExpr extends ASTList implements TokenId {
25     protected boolean newArray;
26     protected int arrayType;
27
28     public NewExpr(ASTList className, ASTList args) {
29         super(className, new ASTList(args));
30         newArray = false;
31         arrayType = CLASS;
32     }
33
34     public NewExpr(int type, ASTList arraySize, ASTree init) {
35         super(null, new ASTList(arraySize));
36         newArray = true;
37         arrayType = type;
38         if (init != null)
39             append(this, init);
40     }
41
42     public static NewExpr makeObjectArray(ASTList className,
43                                           ASTList arraySize, ASTree init) {
44         NewExpr e = new NewExpr(className, arraySize);
45         e.newArray = true;
46         if (init != null)
47             append(e, init);
48
49         return e;
50     }
51
52     public boolean isArray() { return newArray; }
53
54     /* TokenId.CLASS, TokenId.INT, ...
55      */
56     public int getArrayType() { return arrayType; }
57
58     public ASTList getClassName() { return (ASTList)getLeft(); }
59
60     public ASTList getArguments() { return (ASTList)getRight().getLeft(); }
61
62     public ASTList getArraySize() { return getArguments(); }
63
64     public ASTree getInitializer() {
65         ASTree t = getRight().getRight();
66         if (t == null)
67             return null;
68         else
69             return t.getLeft();
70     }
71
72     public void accept(Visitor v) throws CompileError { v.atNewExpr(this); }
73
74     protected String JavaDoc getTag() {
75         return newArray ? "new[]" : "new";
76     }
77 }
78
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