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Scala 3/scala/scala.collection/scala.collection.immutable/ListSet

ListSet

scala.collection.immutable.ListSet
See theListSet companion class
object ListSet extends IterableFactory[ListSet]

This object provides a set of operations to create ListSet values.

Note that each element insertion takes O(n) time, which means that creating a list set with n elements will take O(n^2^) time. This makes the builder suitable only for a small number of elements.

Attributes

Companion
class
Source
ListSet.scala
Graph
Supertypes
trait Pure
trait Serializable
class Object
trait Matchable
class Any
Show all
Self type
ListSet.type

Members list

Value members

Concrete methods

def empty[A]: ListSet[A]

An empty list set.

An empty list set.

Type parameters

A

the type of the list set's elements

Attributes

Source
ListSet.scala
def from[E](it: IterableOnce[E]^): ListSet[E]

Creates a target list set from an existing source collection

Creates a target list set from an existing source collection

Type parameters

A

the type of the collection’s elements

Value parameters

source

Source collection

Attributes

Returns

a new list set with the elements of source

Source
ListSet.scala
def newBuilder[A]: Builder[A, ListSet[A]]

Type parameters

A

the type of the list set’s elements

Attributes

Returns

a builder for ListSet objects.

Source
ListSet.scala

Inherited methods

def apply[A](elems: A*): ListSet[A]

Creates a list set with the specified elements.

Creates a list set with the specified elements.

Type parameters

A

the type of the list set's elements

Value parameters

elems

the elements of the created list set

Attributes

Returns

a new list set with elements elems

Inherited from:
IterableFactory
Source
Factory.scala
def concat[A](xss: Iterable[A]*): ListSet[A]

Concatenates all argument collections into a single list set.

Concatenates all argument collections into a single list set.

Type parameters

A

the element type of the list set

Value parameters

xss

the collections that are to be concatenated.

Attributes

Returns

the concatenation of all the collections.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(elem: => A): ListSet[ListSet[ListSet[ListSet[ListSet[A]]]]]

Produces a five-dimensional list set containing the results of some element computation a number of times.

Produces a five-dimensional list set containing the results of some element computation a number of times.

Type parameters

A

the element type of the list set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

n5

the number of elements in the 5th dimension

Attributes

Returns

A list set that contains the results of n1 x n2 x n3 x n4 x n5 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int, n3: Int, n4: Int)(elem: => A): ListSet[ListSet[ListSet[ListSet[A]]]]

Produces a four-dimensional list set containing the results of some element computation a number of times.

Produces a four-dimensional list set containing the results of some element computation a number of times.

Type parameters

A

the element type of the list set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

Attributes

Returns

A list set that contains the results of n1 x n2 x n3 x n4 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int, n3: Int)(elem: => A): ListSet[ListSet[ListSet[A]]]

Produces a three-dimensional list set containing the results of some element computation a number of times.

Produces a three-dimensional list set containing the results of some element computation a number of times.

Type parameters

A

the element type of the list set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

Attributes

Returns

A list set that contains the results of n1 x n2 x n3 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int)(elem: => A): ListSet[ListSet[A]]

Produces a two-dimensional list set containing the results of some element computation a number of times.

Produces a two-dimensional list set containing the results of some element computation a number of times.

Type parameters

A

the element type of the list set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

Attributes

Returns

A list set that contains the results of n1 x n2 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n: Int)(elem: => A): ListSet[A]

Produces a list set containing the results of some element computation a number of times.

Produces a list set containing the results of some element computation a number of times.

Type parameters

A

the element type of the list set

Value parameters

elem

the element computation

n

the number of elements contained in the list set.

Attributes

Returns

A list set that contains the results of n evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def iterate[A](start: A, len: Int)(f: A => A): ListSet[A]

Produces a list set containing repeated applications of a function to a start value.

Produces a list set containing repeated applications of a function to a start value.

Type parameters

A

the element type of the list set

Value parameters

f

the function that's repeatedly applied

len

the number of elements contained in the list set

start

the start value of the list set

Attributes

Returns

a list set with len values in the sequence start, f(start), f(f(start)), ...

Inherited from:
IterableFactory
Source
Factory.scala
def range[A : Integral](start: A, end: A, step: A): ListSet[A]

Produces a list set containing equally spaced values in some integer interval.

Produces a list set containing equally spaced values in some integer interval.

Type parameters

A

the element type of the list set, which must have an Integral instance

Value parameters

end

the end value of the list set (the first value NOT contained)

start

the start value of the list set

step

the difference between successive elements of the list set (must be positive or negative)

Attributes

Returns

a list set with values start, start + step, ... up to, but excluding end

Inherited from:
IterableFactory
Source
Factory.scala
def range[A : Integral](start: A, end: A): ListSet[A]

Produces a list set containing a sequence of increasing of integers.

Produces a list set containing a sequence of increasing of integers.

Type parameters

A

the element type of the list set, which must have an Integral instance

Value parameters

end

the end value of the list set (the first value NOT contained)

start

the first element of the list set

Attributes

Returns

a list set with values start, start + 1, ..., end - 1

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): ListSet[ListSet[ListSet[ListSet[ListSet[A]]]]]

Produces a five-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Produces a five-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the list set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

n5

the number of elements in the 5th dimension

Attributes

Returns

A list set consisting of elements f(i1, i2, i3, i4, i5) for 0 <= i1 < n1, 0 <= i2 < n2, 0 <= i3 < n3, 0 <= i4 < n4, and 0 <= i5 < n5.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int)(f: (Int, Int, Int, Int) => A): ListSet[ListSet[ListSet[ListSet[A]]]]

Produces a four-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Produces a four-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the list set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

Attributes

Returns

A list set consisting of elements f(i1, i2, i3, i4) for 0 <= i1 < n1, 0 <= i2 < n2, 0 <= i3 < n3, and 0 <= i4 < n4.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int, n3: Int)(f: (Int, Int, Int) => A): ListSet[ListSet[ListSet[A]]]

Produces a three-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Produces a three-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the list set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

Attributes

Returns

A list set consisting of elements f(i1, i2, i3) for 0 <= i1 < n1, 0 <= i2 < n2, and 0 <= i3 < n3.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int)(f: (Int, Int) => A): ListSet[ListSet[A]]

Produces a two-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Produces a two-dimensional list set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the list set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

Attributes

Returns

A list set consisting of elements f(i1, i2) for 0 <= i1 < n1 and 0 <= i2 < n2.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n: Int)(f: Int => A): ListSet[A]

Produces a list set containing values of a given function over a range of integer values starting from 0.

Produces a list set containing values of a given function over a range of integer values starting from 0.

Type parameters

A

the element type of the list set

Value parameters

f

The function computing element values

n

The number of elements in the list set

Attributes

Returns

A list set consisting of elements f(0), ..., f(n -1)

Inherited from:
IterableFactory
Source
Factory.scala
def unfold[A, S](init: S)(f: S => Option[(A, S)]): ListSet[A]

Produces a list set that uses a function f to produce elements of type A and update an internal state of type S.

Produces a list set that uses a function f to produce elements of type A and update an internal state of type S.

Type parameters

A

Type of the elements

S

Type of the internal state

Value parameters

f

Computes the next element (or returns None to signal the end of the collection)

init

State initial value

Attributes

Returns

a list set that produces elements using f until f returns None

Inherited from:
IterableFactory
Source
Factory.scala

Implicits

Inherited implicits

implicit def iterableFactory[A]: Factory[A, ListSet[A]]

Attributes

Inherited from:
IterableFactory
Source
Factory.scala
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Copyright (c) 2002-2026, LAMP/EPFL
Copyright (c) 2002-2026, LAMP/EPFL