package org.webslinger.util;

 import java.io.Serializable;

 public class Source<T extends Comparable<T>> implements Comparable<Source<T>>, Serializable {

     private final T source;

     private final int line;

     private final int column;

     public Source(T source, int line, int column) {

         this.source = source;

         this.line = line;

         this.column = column;

     }

     public T getSource() {

         return source;

     }

     public int getLine() {

         return line;

     }

     public int getColumn() {

         return column;

     }

     public int hashCode() {

         return source.hashCode() ^ line ^ column;

     }

     public boolean equals(Object o) {

         if (!(o instanceof Source) || !getClass().equals(o.getClass())) return false;

         Source other = (Source) o;

         return getSource().equals(other.getSource()) && getLine() == other.getLine() && getColumn() == other.getColumn();

     }

     public int compareTo(Source<T> other) {

         int r = getSource().compareTo(other.getSource());

         if (r != 0) return r;

         r = getLine() - other.getLine();

         if (r != 0) return r;

         return getColumn() - other.getColumn();

     }

     protected String getImplementationName() {

         return "Source";

     }

     public String toString() {

         return getImplementationName() + "(" + getSource() + ':' + getLine() + ':' + getColumn() + ')';

     }

 }