Function HasInterface

markers/markers.go:128–134

HasInterface returns true if err contains an error which implements the interface pointed to by referenceInterface. The type of referenceInterface must be a pointer to an interface type. If referenceInterface is not a pointer to an interface, this function will panic.

(err error, referenceInterface interface{})

// must be a pointer to an interface type. If referenceInterface is not a
// pointer to an interface, this function will panic.
func HasInterface(err error, referenceInterface interface{}) bool {
	iface := getInterfaceType("HasInterface", referenceInterface)
	_, isType := If(err, func(err error) (interface{}, bool) {
		return nil, reflect.TypeOf(err).Implements(iface)
	})
	return isType
}

func getInterfaceType(context string, referenceInterface interface{}) reflect.Type {
	typ := reflect.TypeOf(referenceInterface)