Semilattice<T> mixin

Semilattices are commutative semigroups whose operation (i.e. combine) is also idempotent.

Meet-semilattice

For all elements x and y of A, the greatest lower bound of the set {x, y} exists.

Join-semilattice

For all elements x and y of A, the least upper bound of the set {x, y} exists.

See also CommutativeSemigroup, Bind.

Superclass Constraints

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

asJoinPartialOrder(Eq<T> eq) → PartialOrder<T>
Given Eq<T>, return a PartialOrder<T> using the combine operator of Semilattice to determine the partial ordering. This method assumes combine functions as join (that is, as an upper bound).
asMeetPartialOrder(Eq<T> eq) → PartialOrder<T>
Given Eq<T>, return a PartialOrder<T> using the combine operator of Semilattice to determine the partial ordering. This method assumes combine functions as meet (that is, as a lower bound).
combine(T x, T y) → T
Associative operation which combines two values.
inherited
combineN(T a, int n) → T
Only apply combine operation the first time:
inherited
intercalate(T middle) → Semigroup<T>
Return a Semigroup which inserts middle between each pair of elements.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reverse() → Semigroup<T>
Return a Semigroup that reverses the order.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

instance<A>(A f(A a1, A a2)) → Semilattice<A>
Create a Semilattice instance from the given function.
override