pointed

type OfType ¶ added in v2.1.13

type OfType[A, HKTA any] = func(A) HKTA

type Pointed ¶

type Pointed[A, HKTA any] interface {
	// Of lifts a pure value into its higher-kinded type context.
	//
	// This operation wraps a value A in the minimal context required by the type HKTA,
	// creating a valid instance of the higher-kinded type.
	Of(A) HKTA
}

Pointed represents a type that can lift a pure value into a computational context.

Pointed is the minimal extension of a Functor that adds the ability to create a context-wrapped value from a bare value. It provides the canonical way to construct values of a higher-kinded type.

Type Parameters:

• A: The value type to be lifted into the context
• HKTA: The higher-kinded type containing A (e.g., Option[A], Either[E, A])

Example:

// Given a pointed functor for Option[int]
var p Pointed[int, Option[int]]
result := p.Of(42) // Returns Some(42)