Make Go functional with dogs
This is a highly-experimental package. Any changes will be made in a backward-incompatible manner.
This package will not compile without gotip since type parameters are not supported currently in any of Go releases.
Probably you don't need this even after type parameters becomes GA. Even if you feel you do, maybe you shouldn't use this. It's against Go's philosophy.
We will continue to implement more utility types and functions.
- Eq
- Ord
- Semigroup
- Monoid
- Pair
- List
- Slice
- Map
- Set
- Iterator
More examples here.
func main() {
monoid := option.DeriveMonoid[string](algebra.DeriveAdditiveSemigroup[string]())
fizzBuzz := func(i int) string {
fizz := option.Filter(option.Some[string]("Fizz"), func(_ string) bool { return i%3 == 0 })
buzz := option.Filter(option.Some[string]("Buzz"), func(_ string) bool { return i%5 == 0 })
return option.UnwrapOr(monoid.Combine(fizz, buzz), fmt.Sprint(i))
}
it := iterator.Map(iterator.Range[int](1, 15), fizzBuzz)
iterator.ForEach(it, func(s string) { fmt.Println(s) })
}func main() {
type Pair = pair.Pair[int, int]
it := iterator.Unfold(
Pair{1, 1},
func(p Pair) (Pair, int, bool) {
a, b := p.Values()
return Pair{b, a + b}, a, true
},
)
iterator.ForEach(
iterator.Take(it, 5),
func(i int) { fmt.Println(i) },
)
}This library is inspired mainly by:
and many other functional languages.
Distributed under the Apache License, Version 2.0. See LICENSE for more information.