promise

package

v1.0.0 Latest Latest Go to latest Published: May 8, 2023 License: BSD-3-Clause Imports: 4 Imported by: 0

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func Wait(ws ...Waiter) error

func WaitForAll[T any](promises []*Promise[T]) (err error)

type Func[T, V any] func(context.Context, T) (V, error)

func WithCancellation[T, V any](f Func[T, V]) Func[T, V]

type Func2[T, K, V any] func(context.Context, T, K) (V, error)

type MapFunc[T, V any] func(T) V

type Promise[V any] struct {
	// contains filtered or unexported fields
}

func MapAndThen[T, V, K any](ctx context.Context, p *Promise[T], mf MapFunc[T, K], f Func[K, V]) *Promise[V]

func NewPromise[T, V any](ctx context.Context, t T, f Func[T, V]) *Promise[V]

func Then[T, V any](ctx context.Context, p *Promise[T], f Func[T, V]) *Promise[V]

func Zip[T, K, V any](ctx context.Context, pt *Promise[T], pk *Promise[K], f Func2[T, K, V]) *Promise[V]

func (p *Promise[V]) Get() (V, error)

func (p *Promise[V]) Wait() error

type Waiter interface {
	Wait() error
}