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


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.JavaCompiler;
28 import org.aspectj.compiler.base.CodeWriter;
29 import java.io.IOException JavaDoc;
30 import org.aspectj.compiler.base.bcg.CodeBuilder;
31
32 import java.util.*;
33
34 /**
35  * @grammar rand1 <op> rand2
36  */
37 public abstract class ConditionalOpExpr extends BinopExpr {
38
39     protected Type discoverType() {
40         if (! (getRand1().getType().isBoolean() &&
41                getRand2().getType().isBoolean())) {
42             showOperatorTypeError(op, getRand1().getType(), getRand2().getType());
43         }
44         return getTypeManager().booleanType;
45     }
46
47     protected Type getLiftType() {
48         if (getRand1().getType().isBoolean() &&
49             getRand2().getType().isBoolean()) {
50             return getTypeManager().booleanType;
51         } else {
52             return getTypeManager().anyType;
53         }
54     }
55
56     // ------------------------------
57 // bcg
58 protected void cgOp(CodeBuilder cb, Type ty) {
59         throw new RuntimeException JavaDoc("Attempt to generate code for effect op "
60                                    + getOp());
61     }
62
63     //BEGIN: Generated from @child and @property
64
65     public ConditionalOpExpr(SourceLocation location, Expr _rand1, String JavaDoc _op, Expr _rand2) {
66         super(location, _rand1, _op, _rand2);
67
68     }
69     protected ConditionalOpExpr(SourceLocation source) {
70         super(source);
71     }
72
73
74     public String JavaDoc getDefaultDisplayName() {
75         return "ConditionalOpExpr(op: "+op+")";
76     }
77
78     //END: Generated from @child and @property
79 }
80
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