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


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
31 import java.util.*;
32
33 import org.aspectj.compiler.base.bcg.CodeBuilder;
34
35 /**
36  * @grammar ~ rand1
37  *
38  */
39 public class BitNotOpExpr extends UnopExpr {
40
41     protected LiteralExpr halfFold(Type type, LiteralExpr lit) {
42         return type.foldBitNotOp(lit);
43     }
44
45     protected Type discoverType() {
46         Expr rand1 = getRand1();
47         Type ty1 = rand1.getType();
48
49         if (ty1 instanceof IntegralType) {
50             return getTypeManager().unaryNumericPromotion(ty1);
51         } else {
52             showOperatorTypeError(ty1);
53             return getTypeManager().anyType;
54         }
55     }
56
57     protected Type getLiftType() {
58         return getType();
59     }
60
61     // ------------------------------
62 // bcg
63
64     protected void cgValue(CodeBuilder cb) {
65         Type liftType = getLiftType();
66         getRand1().cgValue(cb, liftType);
67         liftType.emitBitNot(cb);
68     }
69
70     //BEGIN: Generated from @child and @property
71
72     public BitNotOpExpr(SourceLocation location, String JavaDoc _op, Expr _rand1) {
73         super(location, _op, _rand1);
74
75     }
76     protected BitNotOpExpr(SourceLocation source) {
77         super(source);
78     }
79
80     public ASTObject copyWalk(CopyWalker walker) {
81         BitNotOpExpr ret = new BitNotOpExpr(getSourceLocation());
82         ret.preCopy(walker, this);
83         ret.op = op;
84         if (rand1 != null) ret.setRand1( (Expr)walker.process(rand1) );
85         return ret;
86     }
87
88
89     public String JavaDoc getDefaultDisplayName() {
90         return "BitNotOpExpr(op: "+op+")";
91     }
92
93     //END: Generated from @child and @property
94 }
95
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