/* * LineNumberTableAttribute.java 1.4 02/09/27 * * Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved. * * This software is the confidential and proprietary information of Sun * Microsystems, Inc. ("Confidential Information"). You shall not * disclose such Confidential Information and shall use it only in * accordance with the terms of the license agreement you entered into * with Sun. * * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING * THIS SOFTWARE OR ITS DERIVATIVES. * Use is subject to license terms. */ package components; import java.io.DataOutput; import java.io.DataInput; import java.io.IOException; import util.DataFormatException; /* * A class to represent the LineNumber table Attribute * of a method's code. */ public class LineNumberTableAttribute extends Attribute { public LineNumberTableEntry data[]; public LineNumberTableAttribute( UnicodeConstant name, int l, LineNumberTableEntry d[] ){ super( name, l ); data = d; } protected int writeData( DataOutput o ) throws IOException{ int n = data.length; o.writeShort( n ); for ( int i = 0; i < n; i++ ){ data[i].write( o ); } return 2+LineNumberTableEntry.size*n; } public static Attribute readAttribute( DataInput i, ConstantObject t[] ) throws IOException{ UnicodeConstant name; name = (UnicodeConstant)t[i.readUnsignedShort()]; return finishReadAttribute( i, name ); } // // for those cases where we already read the name index // and know that its not something requiring special handling. // public static Attribute finishReadAttribute( DataInput in, UnicodeConstant name ) throws IOException { int l; int n; LineNumberTableEntry d[]; l = in.readInt(); n = in.readUnsignedShort(); d = new LineNumberTableEntry[ n ]; for ( int i = 0; i < n; i++ ){ d[i] = new LineNumberTableEntry( in.readUnsignedShort(), in.readUnsignedShort() ); } return new LineNumberTableAttribute( name, l, d ); } }
