01: /*
02: *
03: *
04: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: // Represents a CONSTANT_Integer or CONSTANT_Float
28: package components;
29:
30: import java.io.DataInput;
31: import java.io.DataOutput;
32: import java.io.IOException;
33: import jcc.Const;
34:
35: public class SingleValueConstant extends ConstantObject {
36: public int value;
37:
38: private SingleValueConstant(int t, int v) {
39: tag = t;
40: value = v;
41: nSlots = 1;
42: }
43:
44: public SingleValueConstant(int ival) {
45: this (Const.CONSTANT_INTEGER, ival);
46: }
47:
48: public static ConstantObject read(int t, DataInput i)
49: throws IOException {
50: return new SingleValueConstant(t, i.readInt());
51: }
52:
53: public void write(DataOutput o) throws IOException {
54: o.writeByte(tag);
55: o.writeInt(value);
56: }
57:
58: public String toString() {
59: return (tag == Const.CONSTANT_FLOAT) ? ("Float: " + Float
60: .intBitsToFloat(value)) : ("Int: " + Integer
61: .toHexString(value));
62: }
63:
64: public int hashCode() {
65: return tag + value;
66: }
67:
68: public boolean equals(Object o) {
69: if (o instanceof SingleValueConstant) {
70: SingleValueConstant s = (SingleValueConstant) o;
71: return tag == s.tag && value == s.value;
72: } else {
73: return false;
74: }
75: }
76:
77: public boolean isResolved() {
78: return true;
79: }
80: }
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