01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.bytecode;
30:
31: import com.caucho.log.Log;
32:
33: import java.io.IOException;
34: import java.util.logging.Logger;
35:
36: /**
37: * Represents a name and type ref in the constant pool.
38: */
39: public class NameAndTypeConstant extends ConstantPoolEntry {
40: static private final Logger log = Log
41: .open(NameAndTypeConstant.class);
42:
43: private int _nameIndex;
44: private int _descriptorIndex;
45:
46: /**
47: * Creates a new name-and-type ref constant.
48: */
49: NameAndTypeConstant(ConstantPool pool, int index, int nameIndex,
50: int descriptorIndex) {
51: super (pool, index);
52:
53: _nameIndex = nameIndex;
54: _descriptorIndex = descriptorIndex;
55: }
56:
57: /**
58: * Returns the name
59: */
60: public String getName() {
61: return getConstantPool().getUtf8(_nameIndex).getValue();
62: }
63:
64: /**
65: * Returns the type descriptor
66: */
67: public String getType() {
68: return getConstantPool().getUtf8(_descriptorIndex).getValue();
69: }
70:
71: /**
72: * Writes the contents of the pool entry.
73: */
74: void write(ByteCodeWriter out) throws IOException {
75: out.write(ConstantPool.CP_NAME_AND_TYPE);
76: out.writeShort(_nameIndex);
77: out.writeShort(_descriptorIndex);
78: }
79:
80: /**
81: * Exports to the target pool.
82: */
83: public int export(ConstantPool target) {
84: return target.addNameAndType(getName(), getType()).getIndex();
85: }
86:
87: public String toString() {
88: return "NameAndTypeConstant[" + getName() + ", " + getType()
89: + "]";
90: }
91: }
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