Package io.github.douira.glsl_transformer.print

Class CachingIntervalSet

java.lang.Object

org.antlr.v4.runtime.misc.IntervalSet

io.github.douira.glsl_transformer.print.CachingIntervalSet

All Implemented Interfaces:

IntSet

public class CachingIntervalSet
extends IntervalSet

The caching interval set is a regular interval set IntervalSet but the @link org.antlr.v4.runtime.misc.IntervalSet#contains(int)} method does caching of queries. Repeatedly requesting the same query is a common operation and therefore caching it like this can be helpful.

Field Summary

Fields inherited from class org.antlr.v4.runtime.misc.IntervalSet

COMPLETE_CHAR_SET, EMPTY_SET, intervals, readonly

Constructor Summary

Constructors

Constructor	Description
CachingIntervalSet()

Method Summary

Modifier and Type	Method	Description
void	add(Interval interval)	Makes this method accessible and add cache invalidation.
void	clear()	Add cache invalidation.
boolean	contains(int el)	Copied from ANTLR's IntervalSet.contains(int) but with an addition of caching.
boolean	tokenNotOmitted(Token token)	Checks if the given token is covered by this set if it's being used as an omission set.

Methods inherited from class org.antlr.v4.runtime.misc.IntervalSet

add, add, addAll, and, complement, complement, elementName, elementName, equals, get, getIntervals, getMaxElement, getMinElement, hashCode, isNil, isReadonly, of, of, or, or, remove, setReadonly, size, subtract, subtract, toArray, toIntegerList, toList, toSet, toString, toString, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Details

CachingIntervalSet

public CachingIntervalSet()

Method Details

contains

public boolean contains(int el)

Copied from ANTLR's IntervalSet.contains(int) but with an addition of caching. The cache size is 1. This method will test the cached interval if it hasn't been invalidated since.

Specified by:

contains in interface IntSet

Overrides:

contains in class IntervalSet

clear

public void clear()

Add cache invalidation.

Overrides:

clear in class IntervalSet

add

public void add(Interval interval)

Makes this method accessible and add cache invalidation.

Overrides:

add in class IntervalSet

tokenNotOmitted

public boolean tokenNotOmitted(Token token)

Checks if the given token is covered by this set if it's being used as an omission set. Tokens that are included in one of this interval set's sets and aren't hidden are not printed.

Parameters:

token - The token to check

Returns:

true if the token should be printed