01: /*
02: * Copyright 2004 Brian S O'Neill
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16:
17: package org.cojen.classfile.constant;
18:
19: import java.io.DataOutput;
20: import java.io.IOException;
21: import org.cojen.classfile.ConstantInfo;
22: import org.cojen.classfile.ConstantPool;
23:
24: /**
25: * This class corresponds to the CONSTANT_Double_info structure as defined in
26: * section 4.4.5 of <i>The Java Virtual Machine Specification</i>.
27: *
28: * @author Brian S O'Neill
29: */
30: public class ConstantDoubleInfo extends ConstantInfo {
31: private final double mValue;
32:
33: public ConstantDoubleInfo(double value) {
34: super (TAG_DOUBLE);
35: mValue = value;
36: }
37:
38: public double getValue() {
39: return mValue;
40: }
41:
42: public int hashCode() {
43: long bits = Double.doubleToLongBits(mValue);
44: return (int) (bits ^ (bits >>> 32));
45: }
46:
47: public boolean equals(Object obj) {
48: if (this == obj) {
49: return true;
50: }
51: if (obj instanceof ConstantDoubleInfo) {
52: ConstantDoubleInfo other = (ConstantDoubleInfo) obj;
53: return mValue == other.mValue;
54: }
55: return false;
56: }
57:
58: protected int getEntryCount() {
59: return 2;
60: }
61:
62: public void writeTo(DataOutput dout) throws IOException {
63: super .writeTo(dout);
64: dout.writeDouble(mValue);
65: }
66:
67: public String toString() {
68: return "CONSTANT_Double_info: " + mValue;
69: }
70: }
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