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 also does caching of the queries if the set has been set to readonly. 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)	Adds the given interval to the set.
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, clear, 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. If the interval set has been marked as readonly, it will return the last hit if the query is the same.

Specified by:

contains in interface IntSet

Overrides:

contains in class IntervalSet

add

public void add(Interval interval)

Adds the given interval to the set.

Overrides:

add in class IntervalSet

Parameters:

interval - The interval to add to this interval set

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