collate

type Comparer[T any] interface {

	// Compare compares the specified objects and returns negative if the first one is less than the second,
	// zero if the first one is equal to the second and positive if the first one is greater than the second.
	Compare(T, T) int
}

type ComparerFunc[T any] func(T, T) int

type DeepEqualer[T any] struct{}

type Equaler[T any] interface {

	// Equal reports whether the specified objects are equal.
	Equal(T, T) bool
}

type EqualerFunc[T any] func(T, T) bool

type Lesser[T any] interface {

	// Less reports whether the first object is less than the second.
	Less(T, T) bool
}

type LesserFunc[T any] func(T, T) bool

type MapEqualer[M ~map[K]V, K, V comparable] struct{}

type Order[T cmp.Ordered] struct{}

type SliceOrder[S ~[]E, E cmp.Ordered] struct{}

type StringOrder struct {
	Mapping func(string) string
}