proguard.classfile.io.RuntimeDataOutput Maven / Gradle / Ivy
/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2018 GuardSquare NV
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.classfile.io;
import java.io.*;
/**
* This class delegates its method calls to the corresponding DataOutput methods,
* converting its IOExceptions to RuntimeExceptions.
*
* The class provides two convenience methods that additionally check whether the
* written values are unsigned resp. signed short values before writing them.
*
* @author Eric Lafortune
*/
final class RuntimeDataOutput
{
private final DataOutput dataOutput;
public RuntimeDataOutput(DataOutput dataOutput)
{
this.dataOutput = dataOutput;
}
// Methods delegating to DataOutput.
public void write(byte[] b)
{
try
{
dataOutput.write(b);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void write(byte[] b, int off, int len)
{
try
{
dataOutput.write(b, off, len);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void write(int b)
{
try
{
dataOutput.write(b);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeBoolean(boolean v)
{
try
{
dataOutput.writeBoolean(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeByte(int v)
{
try
{
dataOutput.writeByte(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeBytes(String s)
{
try
{
dataOutput.writeBytes(s);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeChar(int v)
{
try
{
dataOutput.writeChar(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeChars(String s)
{
try
{
dataOutput.writeChars(s);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeDouble(double v)
{
try
{
dataOutput.writeDouble(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeFloat(float v)
{
try
{
dataOutput.writeFloat(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeInt(int v)
{
try
{
dataOutput.writeInt(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeLong(long v)
{
try
{
dataOutput.writeLong(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
/**
* Checks if the given value is an unsigned short value before writing it.
*
* @throws IllegalArgumentException if the value is not an unsigned short value.
* @see #writeShort(int)
*/
public void writeUnsignedShort(int v)
{
if ((v & 0xffff) != v)
{
throw new IllegalArgumentException("Overflow of unsigned short value ["+v+"]");
}
writeShort(v);
}
/**
* Checks if the given value is a signed short value before writing it.
*
* @throws IllegalArgumentException if the value is not a signed short value.
* @see #writeShort(int)
*/
public void writeSignedShort(int v)
{
if ((short)v != v)
{
throw new IllegalArgumentException("Overflow of signed short value ["+v+"]");
}
writeShort(v);
}
public void writeShort(int v)
{
try
{
dataOutput.writeShort(v);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
public void writeUTF(String str)
{
try
{
dataOutput.writeUTF(str);
}
catch (IOException ex)
{
throw new RuntimeException(ex.getMessage());
}
}
}
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