/
types.go
41 lines (34 loc) · 898 Bytes
/
types.go
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package event
// EventHandler is a event handler function
type EventHandler func(event Event)
// Event structure
type Event struct {
Name string
Payload interface{}
Option EventOption
}
// NewEvent create new event
func NewEvent(name string, payload interface{}) *Event {
return &Event{
Name: name,
Payload: payload,
}
}
// NewEventWithOption create new event with option
func NewEventWithOption(name string, payload interface{}, option EventOption) *Event {
result := NewEvent(name, payload)
result.Option = option
return result
}
// EventOption is a set of event option.
type EventOption byte
// AddIf adds event option if condition is valid
func (opts *EventOption) AddIf(opt EventOption, condition bool) {
if condition {
*opts |= opt
}
}
// Has test if event options contains this option
func (opts EventOption) Has(opt EventOption) bool {
return opts&opt != 0
}