mirror of
https://github.com/IBM/fp-go.git
synced 2025-06-17 00:07:49 +02:00
28 lines
728 B
Go
28 lines
728 B
Go
// Package tuple contains type definitions and functions for data structures for tuples of heterogenous types. For homogeneous types
|
|
// consider to use arrays for simplicity
|
|
package tuple
|
|
|
|
func First[T1, T2 any](t Tuple2[T1, T2]) T1 {
|
|
return t.F1
|
|
}
|
|
|
|
func Second[T1, T2 any](t Tuple2[T1, T2]) T2 {
|
|
return t.F2
|
|
}
|
|
|
|
func Swap[T1, T2 any](t Tuple2[T1, T2]) Tuple2[T2, T1] {
|
|
return MakeTuple2(t.F2, t.F1)
|
|
}
|
|
|
|
func Of[T1, T2 any](e T2) func(T1) Tuple2[T1, T2] {
|
|
return func(t T1) Tuple2[T1, T2] {
|
|
return MakeTuple2(t, e)
|
|
}
|
|
}
|
|
|
|
func BiMap[E, G, A, B any](mapSnd func(E) G, mapFst func(A) B) func(Tuple2[A, E]) Tuple2[B, G] {
|
|
return func(t Tuple2[A, E]) Tuple2[B, G] {
|
|
return MakeTuple2(mapFst(First(t)), mapSnd(Second(t)))
|
|
}
|
|
}
|