Class Two<V,A>

java.lang.Object

fj.data.fingertrees.Digit<V,A>

fj.data.fingertrees.Two<V,A>

public final class Two<V,A>
extends Digit<V,A>

A two-element prefix or suffix of a finger tree.

Field Summary

Fields

Modifier and Type	Field	Description
private final V2<A>	as

Constructor Summary

Constructors

Constructor	Description
Two(Measured<V,A> m, V2<A> as)

Method Summary

Modifier and Type	Method	Description
<B> B	foldLeft(F<B,F<A,B>> bff, B z)	Folds this digit to the left using the given function and the given initial value.
<B> B	foldRight(F<A,F<B,B>> aff, B z)	Folds this digit to the right using the given function and the given initial value.
int	length()
P2<Integer,A>	lookup(F<V,Integer> o, int i)
<B> B	match(F<One<V,A>,B> one, F<Two<V,A>,B> two, F<Three<V,A>, B> three, F<Four<V,A>, B> four)	Structural pattern matching on digits.
(package private) P3<Option<Digit<V,A>>, A, Option<Digit<V,A>>>	split1(F<V,Boolean> predicate, V acc)
Stream<A>	toStream()
String	toString()
V2<A>	values()	Returns the elements of this digit as a vector.

Methods inherited from class Digit

init, map, measure, measured, reduceLeft, reduceRight, tail, toTree

Methods inherited from class Object

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

Field Details

as

private final V2<A> as

Constructor Details

Two

Two(Measured<V,A> m,
 V2<A> as)

Method Details

foldRight

public <B> B foldRight(F<A,F<B,B>> aff,
 B z)

Description copied from class: Digit

Folds this digit to the right using the given function and the given initial value.

Specified by:

foldRight in class Digit<V,A>

Parameters:

aff - A function with which to fold this digit.

z - An initial value to apply at the rightmost end of the fold.

Returns:

The right reduction of this digit with the given function and the given initial value.

foldLeft

public <B> B foldLeft(F<B,F<A,B>> bff,
 B z)

Description copied from class: Digit

Folds this digit to the left using the given function and the given initial value.

Specified by:

foldLeft in class Digit<V,A>

Parameters:

bff - A function with which to fold this digit.

z - An initial value to apply at the leftmost end of the fold.

Returns:

The left reduction of this digit with the given function and the given initial value.

match

public <B> B match(F<One<V,A>,B> one,
 F<Two<V,A>,B> two,
 F<Three<V,A>, B> three,
 F<Four<V,A>, B> four)

Description copied from class: Digit

Structural pattern matching on digits. Applies the function that matches the structure of this digit.

Specified by:

match in class Digit<V,A>

Parameters:

one - A function to apply to this digit if it's One.

two - A function to apply to this digit if it's Two.

three - A function to apply to this digit if it's Three.

four - A function to apply to this digit if it's Four.

Returns:

The result of applying the function matching this Digit.

values

public V2<A> values()

Returns the elements of this digit as a vector.

Returns:

the elements of this digit as a vector.

split1

P3<Option<Digit<V,A>>, A, Option<Digit<V,A>>> split1(F<V,Boolean> predicate,
 V acc)

Specified by:

split1 in class Digit<V,A>

lookup

public P2<Integer,A> lookup(F<V,Integer> o,
 int i)

Specified by:

lookup in class Digit<V,A>

length

public int length()

Specified by:

length in class Digit<V,A>

toString

public String toString()

Overrides:

toString in class Digit<V,A>

toStream

public Stream<A> toStream()

Specified by:

toStream in class Digit<V,A>