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


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.*;
28 import java.io.IOException JavaDoc;
29
30 import org.aspectj.compiler.base.bcg.CodeBuilder;
31 import org.aspectj.compiler.base.bcg.Label;
32
33 public final class ByteType extends IntishType {
34
35     public String JavaDoc getName() { return "byte"; }
36     public int getTypeIndex() { return Type.BYTE; }
37     public Type getRefType() { return getTypeManager().getType("java.lang", "Byte"); }
38
39     public ByteType(JavaCompiler compiler) {
40         super(compiler);
41     }
42
43     // folding
44 LiteralExpr foldCast(LiteralExpr rand) {
45         return new IntLiteralExpr(getAST().getSourceLocation(), this, (byte)rand.getIntValue());
46     }
47
48     // vm internals
49 public String JavaDoc getDescriptor() { return "B"; }
50
51     // code gen
52 void emitCastFromInt(CodeBuilder cb) { cb.emitI2B(); }
53     void emitCastFromFloat(CodeBuilder cb) { cb.emitF2I(); cb.emitI2B(); }
54     void emitCastFromLong(CodeBuilder cb) { cb.emitL2I(); cb.emitI2B(); }
55     void emitCastFromDouble(CodeBuilder cb) { cb.emitD2I(); cb.emitI2B(); }
56
57     void emitAload(CodeBuilder cb) { cb.emitBALOAD(); }
58     void emitAstore(CodeBuilder cb) { cb.emitBASTORE(); }
59
60
61 }
62
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