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java_cup
Class parse_action_table  

java.lang.Object
  java_cup.parse_action_table

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public class parse_action_table

extends java.lang.Object

This class represents the complete "action" table of the parser. It has one row for each state in the parse machine, and a column for each terminal symbol. Each entry in the table represents a shift, reduce, or an error.

Version:

last updated: 11/25/95

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Field Summary
protected  int	_num_states           How many rows/states are in the machine/table.
parse_action_row[]	under_state           Actual array of rows, one per state.

 

Constructor Summary

parse_action_table()           Simple constructor.

 

Method Summary
void	check_reductions()           Check the table to ensure that all productions have been reduced.
int	num_states()           How many rows/states are in the machine/table.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

_num_states

protected int _num_states

How many rows/states are in the machine/table.

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under_state

public parse_action_row[] under_state

Actual array of rows, one per state.

Constructor Detail

parse_action_table

public parse_action_table()

Simple constructor. All terminals, non-terminals, and productions must already have been entered, and the viable prefix recognizer should have been constructed before this is called.

Method Detail

num_states

public int num_states()

How many rows/states are in the machine/table.

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check_reductions

public void check_reductions()
                      throws internal_error

Check the table to ensure that all productions have been reduced. Issue a warning message (to System.err) for each production that is never reduced.

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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