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|
package callback
import (
"fmt"
)
type Unsupported struct {
Callback Interface
}
func (uc *Unsupported) Error() string {
return fmt.Sprintf("Unsupported callback <%T>: %v", uc.Callback, uc.Callback)
}
type Interface interface {
// marker interface
}
type Handler interface {
// may return an Unsupported error on failure
Handle(callbacks ...Interface) error
}
type HandlerFunc func(callbacks ...Interface) error
func (f HandlerFunc) Handle(callbacks ...Interface) error {
return f(callbacks...)
}
|
