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/*******************************************************************************
* Copyright (c) 2014 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.analysis;
import cuchaz.enigma.Util;
import cuchaz.enigma.mapping.ClassEntry;
import cuchaz.enigma.mapping.Entry;
public class EntryReference<E extends Entry, C extends Entry>
{
public E entry;
public C context;
public EntryReference( E entry )
{
this( entry, null );
}
public EntryReference( E entry, C context )
{
if( entry == null )
{
throw new IllegalArgumentException( "Entry cannot be null!" );
}
this.entry = entry;
this.context = context;
}
public ClassEntry getClassEntry( )
{
if( context != null )
{
return context.getClassEntry();
}
return entry.getClassEntry();
}
@Override
public int hashCode( )
{
if( context != null )
{
return Util.combineHashesOrdered( entry.hashCode(), context.hashCode() );
}
return entry.hashCode();
}
@Override
public boolean equals( Object other )
{
if( other instanceof EntryReference )
{
return equals( (EntryReference<?,?>)other );
}
return false;
}
public boolean equals( EntryReference<?,?> other )
{
// check entry first
boolean isEntrySame = entry.equals( other.entry );
if( !isEntrySame )
{
return false;
}
// check caller
if( context == null && other.context == null )
{
return true;
}
else if( context != null && other.context != null )
{
return context.equals( other.context );
}
return false;
}
@Override
public String toString( )
{
StringBuilder buf = new StringBuilder();
buf.append( entry );
if( context != null )
{
buf.append( " called from " );
buf.append( context );
}
return buf.toString();
}
}
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