objectmap

Documentation

Index

• type Func
• type Interface
  • func Compose(f1 Interface, fi ...Interface) (Interface, error)
  • func New(domain object.Parent, codomain object.Parent, f Func) Interface

Types

type Func

type Func func(x object.Element) (object.Element, error)

Func defines a function that can be evaluated at x.

type Interface

type Interface interface {
	fmt.Stringer
	Domain() object.Parent                             // Domain returns the domain.
	Codomain() object.Parent                           // Codomain returns the codomain.
	Evaluate(x object.Element) (object.Element, error) // Evaluate returns the image of x.
}

Interface defines the interface satisfied by a map between parents.

func Compose

func Compose(f1 Interface, fi ...Interface) (Interface, error)

Compose return the composition h of the maps f1, f2, ..., fk, given by:

h(x) = (fk ○ ... ○ f2 ○ f1)(x) = fk(...(f2((f1(x))))...).

func New

func New(domain object.Parent, codomain object.Parent, f Func) Interface

New returns a new map from the given domain to the given codomain defined by the function f.