java_cup

Class parse_action


public class parse_action
extends java.lang.Object

This class serves as the base class for entries in a parse action table. Full entries will either be SHIFT(state_num), REDUCE(production), NONASSOC, or ERROR. Objects of this base class will default to ERROR, while the other three types will be represented by subclasses.
Version:
last updated: 7/2/96
Author:
Frank Flannery
See Also:
reduce_action, shift_action

Field Summary

static int
ERROR
Constant for action type -- error action.
static int
NONASSOC
Constants for action type -- reduce action.
static int
REDUCE
Constants for action type -- reduce action.
static int
SHIFT
Constant for action type -- shift action.

Constructor Summary

parse_action()
Simple constructor.

Method Summary

boolean
equals(Object other)
Generic equality test.
boolean
equals(parse_action other)
Equality test.
int
hashCode()
Compute a hash code.
int
kind()
Quick access to the type -- base class defaults to error.
String
toString()
Convert to string.

Field Details

ERROR

public static final int ERROR
Constant for action type -- error action.
Field Value:
0

NONASSOC

public static final int NONASSOC
Constants for action type -- reduce action.
Field Value:
3

REDUCE

public static final int REDUCE
Constants for action type -- reduce action.
Field Value:
2

SHIFT

public static final int SHIFT
Constant for action type -- shift action.
Field Value:
1

Constructor Details

parse_action

public parse_action()
Simple constructor.

Method Details

equals

public boolean equals(Object other)
Generic equality test.

equals

public boolean equals(parse_action other)
Equality test.

hashCode

public int hashCode()
Compute a hash code.

kind

public int kind()
Quick access to the type -- base class defaults to error.

toString

public String toString()
Convert to string.