dotcloud/docker

// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
//go:build go1.21

package sliceutil

func Dedup[T comparable](slice []T) []T {
    keys := make(map[T]struct{})
    out := make([]T, 0, len(slice))
    for _, s := range slice {
        if _, ok := keys[s]; !ok {
            out = append(out, s)
            keys[s] = struct{}{}
        }
    }
    return out
}

func Map[S ~[]In, In, Out any](s S, fn func(In) Out) []Out {
    res := make([]Out, len(s))
    for i, v := range s {
        res[i] = fn(v)
    }
    return res
}

func Mapper[In, Out any](fn func(In) Out) func([]In) []Out {
    return func(s []In) []Out {
        res := make([]Out, len(s))
        for i, v := range s {
            res[i] = fn(v)
        }
        return res
    }
}