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Merge pull request #3 from libp2p/feat/interface

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generify options.
This commit is contained in:
Łukasz Magiera 2019-06-19 15:13:27 +02:00 committed by GitHub
commit 2341c42dab
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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 {
forcedType reflect.Type
}
type SubOption func(*subSettings) error
type SubOption func(interface{}) error
// ForceSubType is a Subscribe option which overrides the type to which
// 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)))
// [...]
func ForceSubType(evtType interface{}) SubOption {
return func(s *subSettings) error {
return func(settings interface{}) error {
s := settings.(*subSettings)
typ := reflect.TypeOf(evtType)
if typ.Kind() != reflect.Ptr {
return errors.New("ForceSubType called with non-pointer type")
@ -42,7 +44,7 @@ func ForceSubType(evtType interface{}) SubOption {
type emitterSettings struct {
makeStateful bool
}
type EmitterOption func(*emitterSettings)
type EmitterOption func(interface{}) error
// Stateful is an Emitter option which makes makes the eventbus channel
// 'remember' last event sent, and when a new subscriber joins the