java_cup

Class parse_action

java.lang.Object

java_cup.parse_action

Direct Known Subclasses:

nonassoc_action, reduce_action, shift_action

public class parse_action
extends 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

Fields

Modifier and Type	Field and Description
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

Constructors

Constructor and Description
parse_action() Simple constructor.

Method Summary

Modifier and Type	Method and Description
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.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ERROR

public static final int ERROR

Constant for action type -- error action.

See Also:

Constant Field Values

SHIFT

public static final int SHIFT

Constant for action type -- shift action.

See Also:

Constant Field Values

REDUCE

public static final int REDUCE

Constants for action type -- reduce action.

See Also:

Constant Field Values

NONASSOC

public static final int NONASSOC

Constants for action type -- reduce action.

See Also:

Constant Field Values

Constructor Detail

parse_action

public parse_action()

Simple constructor.

Method Detail

kind

public int kind()

Quick access to the type -- base class defaults to error.

equals

public boolean equals(parse_action other)

Equality test.

equals

public boolean equals(Object other)

Generic equality test.

Overrides:

equals in class Object

hashCode

public int hashCode()

Compute a hash code.

Overrides:

hashCode in class Object

toString

public String toString()

Convert to string.

Overrides:

toString in class Object