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Scala 3/scala/scala.collection/scala.collection.immutable/Set

Set

scala.collection.immutable.Set
See theSet companion trait
object Set extends IterableFactory[Set]
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This object provides a set of operations to create immutable.Set values.

Attributes

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

Members list

Type members

Classlikes

final class Set1[A] extends AbstractSet[A], StrictOptimizedIterableOps[A, Set, Set[A]], Serializable

An optimized representation for immutable sets of size 1.

An optimized representation for immutable sets of size 1.

Attributes

Source
Set.scala
Supertypes
trait Serializable
class AbstractSet[A]
trait Set[A]
trait SetOps[A, Set, Set[A]]
trait Iterable[A]
class AbstractSet[A]
trait Set[A]
trait Equals
trait SetOps[A, Set, Set[A]]
trait Pure
trait A ->=> Boolean
class AbstractIterable[A]
trait Iterable[A]
trait IterableOps[A, Set, Set[A]]
trait IterableOnceOps[A, Set, Set[A]]
trait IterableOnce[A]
class Object
trait Matchable
class Any
Show all
final class Set2[A] extends AbstractSet[A], StrictOptimizedIterableOps[A, Set, Set[A]], Serializable

An optimized representation for immutable sets of size 2.

An optimized representation for immutable sets of size 2.

Attributes

Source
Set.scala
Supertypes
trait Serializable
class AbstractSet[A]
trait Set[A]
trait SetOps[A, Set, Set[A]]
trait Iterable[A]
class AbstractSet[A]
trait Set[A]
trait Equals
trait SetOps[A, Set, Set[A]]
trait Pure
trait A ->=> Boolean
class AbstractIterable[A]
trait Iterable[A]
trait IterableOps[A, Set, Set[A]]
trait IterableOnceOps[A, Set, Set[A]]
trait IterableOnce[A]
class Object
trait Matchable
class Any
Show all
final class Set3[A] extends AbstractSet[A], StrictOptimizedIterableOps[A, Set, Set[A]], Serializable

An optimized representation for immutable sets of size 3.

An optimized representation for immutable sets of size 3.

Attributes

Source
Set.scala
Supertypes
trait Serializable
class AbstractSet[A]
trait Set[A]
trait SetOps[A, Set, Set[A]]
trait Iterable[A]
class AbstractSet[A]
trait Set[A]
trait Equals
trait SetOps[A, Set, Set[A]]
trait Pure
trait A ->=> Boolean
class AbstractIterable[A]
trait Iterable[A]
trait IterableOps[A, Set, Set[A]]
trait IterableOnceOps[A, Set, Set[A]]
trait IterableOnce[A]
class Object
trait Matchable
class Any
Show all
final class Set4[A] extends AbstractSet[A], StrictOptimizedIterableOps[A, Set, Set[A]], Serializable

An optimized representation for immutable sets of size 4.

An optimized representation for immutable sets of size 4.

Attributes

Source
Set.scala
Supertypes
trait Serializable
class AbstractSet[A]
trait Set[A]
trait SetOps[A, Set, Set[A]]
trait Iterable[A]
class AbstractSet[A]
trait Set[A]
trait Equals
trait SetOps[A, Set, Set[A]]
trait Pure
trait A ->=> Boolean
class AbstractIterable[A]
trait Iterable[A]
trait IterableOps[A, Set, Set[A]]
trait IterableOnceOps[A, Set, Set[A]]
trait IterableOnce[A]
class Object
trait Matchable
class Any
Show all

Value members

Concrete methods

def empty[A]: Set[A]

An empty immutable set.

An empty immutable set.

Type parameters

A

the type of the immutable set's elements

Attributes

Returns

an empty immutable set of type CC[A]

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

Creates a target immutable set from an existing source collection

Creates a target immutable 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 immutable set with the elements of source

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

Type parameters

A

the type of the immutable set’s elements

Attributes

Returns

a builder for immutable.Set objects.

Source
Set.scala

Inherited methods

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

Creates a immutable set with the specified elements.

Creates a immutable set with the specified elements.

Type parameters

A

the type of the immutable set's elements

Value parameters

elems

the elements of the created immutable set

Attributes

Returns

a new immutable set with elements elems

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

Concatenates all argument collections into a single immutable set.

Concatenates all argument collections into a single immutable set.

Type parameters

A

the element type of the immutable 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](n: Int)(elem: => A): Set[A]

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

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

Type parameters

A

the element type of the immutable set

Value parameters

elem

the element computation

n

the number of elements contained in the immutable set.

Attributes

Returns

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

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

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

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

Type parameters

A

the element type of the immutable 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 immutable set that contains the results of n1 x n2 evaluations of elem.

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

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

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

Type parameters

A

the element type of the immutable 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 immutable 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, n3: Int, n4: Int)(elem: => A): Set[Set[Set[Set[A]]]]

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

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

Type parameters

A

the element type of the immutable 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 immutable 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, n4: Int, n5: Int)(elem: => A): Set[Set[Set[Set[Set[A]]]]]

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

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

Type parameters

A

the element type of the immutable 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 immutable 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 iterate[A](start: A, len: Int)(f: A => A): Set[A]

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

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

Type parameters

A

the element type of the immutable set

Value parameters

f

the function that's repeatedly applied

len

the number of elements contained in the immutable set

start

the start value of the immutable set

Attributes

Returns

a immutable 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): Set[A]

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

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

Type parameters

A

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

Value parameters

end

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

start

the first element of the immutable set

Attributes

Returns

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

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

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

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

Type parameters

A

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

Value parameters

end

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

start

the start value of the immutable set

step

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

Attributes

Returns

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

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

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

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

Type parameters

A

the element type of the immutable set

Value parameters

f

The function computing element values

n

The number of elements in the immutable set

Attributes

Returns

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

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

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

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

Type parameters

A

the element type of the immutable 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 immutable set consisting of elements f(i1, i2) for 0 <= i1 < n1 and 0 <= i2 < n2.

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

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

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

Type parameters

A

the element type of the immutable 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 immutable 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, n3: Int, n4: Int)(f: (Int, Int, Int, Int) => A): Set[Set[Set[Set[A]]]]

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

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

Type parameters

A

the element type of the immutable 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 immutable 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, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): Set[Set[Set[Set[Set[A]]]]]

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

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

Type parameters

A

the element type of the immutable 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 immutable 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 unfold[A, S](init: S)(f: S => Option[(A, S)]): Set[A]

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

Produces a immutable 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 immutable 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, Set[A]]

Attributes

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