anyreader/utils.go

package anyreader

func sliceToFunc[T any](s []T) func() (T, error) {
	i := 0
	return func() (T, error) {
		c := i

		if c >= len(s) {
			return *new(T), ErrNoMoreValues.New()
		}

		i++
		return s[c], nil
	}
}

func sliceToSafeFunc[T any](s []T) func() T {
	i := 0
	return func() T {
		c := i

		if c >= len(s) {
			return *new(T)
		}

		i++
		return s[c]
	}
}

func findFirstTrue[T any](value T, functions []func(T) bool) bool {
	for _, f := range functions {
		if f(value) {
			return true
		}
	}
	return false
}

func findFirstFalse[T any](rn T, functions []func(T) bool) bool {
	for _, f := range functions {
		if !f(rn) {
			return false
		}
	}
	return true
}