keen/col/set

This is a standard module and does not need to be explicitly imported.

set[t] record (has private fields)

list-new[t] t set(values t[]) t key

to[t] t set(a t[]) t key

==[t] bool(a t set, b t set) t key

to[t] t[](a t set) t key

is-empty[t] bool(a t set) t key

size[t] nat64(a t set) t key

subscript[t] bool(a t set, value t) t key

True if the value is in the set.

is-subset-of[t] bool(a t set, b t set) t key

is-superset-of[t] bool(a t set, b t set) t key

~[t] t set(a t set, value t) t key

Adds an element to the set. If it was already in the set, returns a unmodified.

|[t] t set(a t set, b t set) t key

Union of two sets. This is a set containing all elements in either a or b.

&[t] t set(a t set, b t set) t key

Intersection of two sets. This is a set containing all elements in both a and b.

-[t] t set(a t set, b t set) t key

Set difference. This is a set containing all elements in a but not in b.

try-add[t] t set option(a t set, value t) t key

If the value is already in the set, returns an empty option. Else, adds it and returns the new set.

try-remove[t] t set option(a t set, value t) t key

some[t] bool(a t set, f bool mut(t)) t key