Module Belt_SetString

This module is Belt.Set specialized with value type to be a primitive type. It is more efficient in general, the API is the same with Belt_Set except its value type is fixed, and identity is not needed(using the built-in one)

See Belt.Set

type value = string;

The type of the set elements.

type t;

The type of sets.

let empty: t;
let fromArray: array(value) => t;
let fromSortedArrayUnsafe: array(value) => t;
let isEmpty: t => bool;
let has: t => value => bool;
let add: t => value => t;

add s x If x was already in s, s is returned unchanged.

let mergeMany: t => array(value) => t;
let remove: t => value => t;

remove m x If x was not in m, m is returned reference unchanged.

let removeMany: t => array(value) => t;
let union: t => t => t;
let intersect: t => t => t;
let diff: t => t => t;
let subset: t => t => bool;

subset s1 s2 tests whether the set s1 is a subset of the set s2.

let cmp: t => t => int;

Total ordering between sets. Can be used as the ordering function for doing sets of sets.

let eq: t => t => bool;

eq s1 s2 tests whether the sets s1 and s2 are equal, that is, contain equal elements.

let forEachU: t => Js.Fn.arity1((value => unit)) => unit;
let forEach: t => (value => unit) => unit;

forEach s f applies f in turn to all elements of s. In increasing order

let reduceU: t => 'a => Js.Fn.arity2(('a => value => 'a)) => 'a;
let reduce: t => 'a => ('a => value => 'a) => 'a;

Iterate in increasing order.

let everyU: t => Js.Fn.arity1((value => bool)) => bool;
let every: t => (value => bool) => bool;

every p s checks if all elements of the set satisfy the predicate p. Order unspecified.

let someU: t => Js.Fn.arity1((value => bool)) => bool;
let some: t => (value => bool) => bool;

some p s checks if at least one element of the set satisfies the predicate p. Oder unspecified.

let keepU: t => Js.Fn.arity1((value => bool)) => t;
let keep: t => (value => bool) => t;

keep p s returns the set of all elements in s that satisfy predicate p.

let partitionU: t => Js.Fn.arity1((value => bool)) => (t, t);
let partition: t => (value => bool) => (t, t);

partition p s returns a pair of sets (s1, s2), where s1 is the set of all the elements of s that satisfy the predicate p, and s2 is the set of all the elements of s that do not satisfy p.

let size: t => int;
let toList: t => list(value);

In increasing order

let toArray: t => array(value);
let minimum: t => option(value);
let minUndefined: t => Js.undefined(value);
let maximum: t => option(value);
let maxUndefined: t => Js.undefined(value);
let get: t => value => option(value);
let getUndefined: t => value => Js.undefined(value);
let getExn: t => value => value;
let split: t => value => ((t, t), bool);

split x s returns a triple (l, present, r), where l is the set of elements of s that are strictly less than x; r is the set of elements of s that are strictly greater than x; present is false if s contains no element equal to x, or true if s contains an element equal to x.

let checkInvariantInternal: t => unit;

raise when invariant is not held