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/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999-2003 Shigeru Chiba. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*/
package javassist.bytecode;
import java.io.DataInputStream;
import java.io.IOException;
import java.util.Map;
/**
* <code>SourceFile_attribute</code>.
*/
public class SourceFileAttribute extends AttributeInfo {
/**
* The name of this attribute <code>"SourceFile"</code>.
*/
public static final String tag = "SourceFile";
SourceFileAttribute(ConstPool cp, int n, DataInputStream in)
throws IOException
{
super(cp, n, in);
}
/**
* Constructs a SourceFile attribute.
*
* @param cp a constant pool table.
* @param filename the name of the source file.
*/
public SourceFileAttribute(ConstPool cp, String filename) {
super(cp, tag);
int index = cp.addUtf8Info(filename);
byte[] bvalue = new byte[2];
bvalue[0] = (byte)(index >>> 8);
bvalue[1] = (byte)index;
set(bvalue);
}
/**
* Returns the file name indicated by <code>sourcefile_index</code>.
*/
public String getFileName() {
return getConstPool().getUtf8Info(ByteArray.readU16bit(get(), 0));
}
/**
* Makes a copy. Class names are replaced according to the
* given <code>Map</code> object.
*
* @param newCp the constant pool table used by the new copy.
* @param classnames pairs of replaced and substituted
* class names.
*/
public AttributeInfo copy(ConstPool newCp, Map classnames) {
return new SourceFileAttribute(newCp, getFileName());
}
}
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