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package java_cup;
/** This class represents a shift/reduce nonassociative error within the
* parse table. If action_table element is assign to type
* nonassoc_action, it cannot be changed, and signifies that there
* is a conflict between shifting and reducing a production and a
* terminal that shouldn't be next to each other.
*
* @version last updated: 7/2/96
* @author Frank Flannery
*/
public class nonassoc_action extends parse_action {
/*-----------------------------------------------------------*/
/*--- Constructor(s) ----------------------------------------*/
/*-----------------------------------------------------------*/
/** Simple constructor.
*/
public nonassoc_action() throws internal_error
{
/* don't need to set anything, since it signifies error */
}
/*-----------------------------------------------------------*/
/*--- General Methods ---------------------------------------*/
/*-----------------------------------------------------------*/
/** Quick access to type of action. */
public int kind() {return NONASSOC;}
/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/** Equality test. */
public boolean equals(parse_action other)
{
return other != null && other.kind() == NONASSOC;
}
/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/** Generic equality test. */
public boolean equals(Object other)
{
if (other instanceof parse_action)
return equals((parse_action)other);
else
return false;
}
/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/** Compute a hash code. */
public int hashCode()
{
/* all objects of this class hash together */
return 0xCafe321;
}
/** Convert to string. */
public String toString()
{
return "NONASSOC";
}
/*-----------------------------------------------------------*/
}