CharMatcher

java.lang.Object

com.oracle.truffle.regex.tregex.matchers.CharMatcher

Direct Known Subclasses:: AnyMatcher, EmptyMatcher, InvertibleCharMatcher

public abstract class CharMatcher extends Object

Constructor Summary

Constructors

Constructor

Description

CharMatcher()
Method Summary

Modifier and Type

Method

Description

abstract int

estimatedCost()

Conservatively estimate the equivalent number of integer comparisons of calling match(int).

abstract boolean

match(int c)

Check if a given code point matches this CharMatcher.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- CharMatcher
  
  public CharMatcher()
Method Details
- match
  public abstract boolean match(int c)
  
  Check if a given code point matches this CharMatcher.
  
  Parameters:
  
  c - any code point.
  
  Returns:
  
  true if the character matches.
  
  See Also:
  
  CompilerDirectives.isPartialEvaluationConstant(Object)
- estimatedCost
  
  public abstract int estimatedCost()
  
  Conservatively estimate the equivalent number of integer comparisons of calling match(int).
  
  Returns:
  
  the number of integer comparisons one call to match(int) is roughly equivalent to. Array loads are treated as two comparisons.