1 package edu.berkeley.sbp;
4 import java.lang.reflect.*;
5 import java.lang.ref.*;
6 import edu.berkeley.sbp.*;
7 import edu.berkeley.sbp.util.*;
9 /** a stream of tokens to be parsed */
10 public interface Input<Token> {
12 /** returns the token just beyond the current location and advances beyond it */
13 public Token next(int numstates, int resets, int waits) throws IOException;
15 /** returns the location the input stream is currently at */
16 public Location getLocation();
18 /** a location *between tokens* in the input stream */
19 public static interface Location {
20 public String toString();