Function isHandlerMethod

component/method.go:52–77

isHandlerMethod decide a method is suitable handler method

(method reflect.Method)

// isHandlerMethod decide a method is suitable handler method
func isHandlerMethod(method reflect.Method) bool {
	mt := method.Type
	// Method must be exported.
	if method.PkgPath != "" {
		return false
	}

	// Method needs three ins: receiver, *Session, []byte or pointer.
	if mt.NumIn() != 3 {
		return false
	}

	// Method needs one outs: error
	if mt.NumOut() != 1 {
		return false
	}

	if t1 := mt.In(1); t1.Kind() != reflect.Ptr || t1 != typeOfSession {
		return false
	}

	if (mt.In(2).Kind() != reflect.Ptr && mt.In(2) != typeOfBytes) || mt.Out(0) != typeOfError {
		return false
	}
	return true
}