libp2p/go-eventbus
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generify options.

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This commit is contained in:
Raúl Kripalani 2019-06-19 14:08:16 +01:00
parent 04b7ec33de
commit 2ea3b26fbd
1 changed files with 5 additions and 3 deletions
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8
interface.go
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@ -10,7 +10,8 @@ var closeEmit struct{}
type subSettings struct { type subSettings struct {
forcedType reflect.Type forcedType reflect.Type
} }
type SubOption func(*subSettings) error
type SubOption func(interface{}) error
// ForceSubType is a Subscribe option which overrides the type to which // ForceSubType is a Subscribe option which overrides the type to which
// the subscription will be done. Note that the evtType must be assignable // the subscription will be done. Note that the evtType must be assignable
@ -29,7 +30,8 @@ type SubOption func(*subSettings) error
// cancel, err := eventbus.Subscribe(eventCh, event.ForceSubType(new(Event))) // cancel, err := eventbus.Subscribe(eventCh, event.ForceSubType(new(Event)))
// [...] // [...]
func ForceSubType(evtType interface{}) SubOption { func ForceSubType(evtType interface{}) SubOption {
return func(s *subSettings) error { return func(settings interface{}) error {
s := settings.(*subSettings)
typ := reflect.TypeOf(evtType) typ := reflect.TypeOf(evtType)
if typ.Kind() != reflect.Ptr { if typ.Kind() != reflect.Ptr {
return errors.New("ForceSubType called with non-pointer type") return errors.New("ForceSubType called with non-pointer type")
@ -42,7 +44,7 @@ func ForceSubType(evtType interface{}) SubOption {
type emitterSettings struct { type emitterSettings struct {
makeStateful bool makeStateful bool
} }
type EmitterOption func(*emitterSettings) type EmitterOption func(interface{}) error
// Stateful is an Emitter option which makes makes the eventbus channel // Stateful is an Emitter option which makes makes the eventbus channel
// 'remember' last event sent, and when a new subscriber joins the // 'remember' last event sent, and when a new subscriber joins the