| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| */ |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.sun.org.apache.bcel.internal.classfile; |
| |
| import java.io.DataInput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import com.sun.org.apache.bcel.internal.Const; |
| |
| /** |
| * This class is derived from the abstract {@link Constant} |
| * and represents a reference to a Double object. |
| * |
| * @version $Id: ConstantDouble.java 1747278 2016-06-07 17:28:43Z britter $ |
| * @see Constant |
| */ |
| public final class ConstantDouble extends Constant implements ConstantObject { |
| |
| private double bytes; |
| |
| |
| /** |
| * @param bytes Data |
| */ |
| public ConstantDouble(final double bytes) { |
| super(Const.CONSTANT_Double); |
| this.bytes = bytes; |
| } |
| |
| |
| /** |
| * Initialize from another object. |
| */ |
| public ConstantDouble(final ConstantDouble c) { |
| this(c.getBytes()); |
| } |
| |
| |
| /** |
| * Initialize instance from file data. |
| * |
| * @param file Input stream |
| * @throws IOException |
| */ |
| ConstantDouble(final DataInput file) throws IOException { |
| this(file.readDouble()); |
| } |
| |
| |
| /** |
| * Called by objects that are traversing the nodes of the tree implicitely |
| * defined by the contents of a Java class. I.e., the hierarchy of methods, |
| * fields, attributes, etc. spawns a tree of objects. |
| * |
| * @param v Visitor object |
| */ |
| @Override |
| public void accept( final Visitor v ) { |
| v.visitConstantDouble(this); |
| } |
| |
| |
| /** |
| * Dump constant double to file stream in binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException |
| */ |
| @Override |
| public final void dump( final DataOutputStream file ) throws IOException { |
| file.writeByte(super.getTag()); |
| file.writeDouble(bytes); |
| } |
| |
| |
| /** |
| * @return data, i.e., 8 bytes. |
| */ |
| public final double getBytes() { |
| return bytes; |
| } |
| |
| |
| /** |
| * @param bytes the raw bytes that represent the double value |
| */ |
| public final void setBytes( final double bytes ) { |
| this.bytes = bytes; |
| } |
| |
| |
| /** |
| * @return String representation. |
| */ |
| @Override |
| public final String toString() { |
| return super.toString() + "(bytes = " + bytes + ")"; |
| } |
| |
| |
| /** @return Double object |
| */ |
| @Override |
| public Object getConstantValue( final ConstantPool cp ) { |
| return new Double(bytes); |
| } |
| } |