kubernetes/staging/src/k8s.io/apiserver/pkg/endpoints/handlers/update.go

// UpdateResource returns a function that will handle a resource update
func UpdateResource(r rest.Updater, scope *RequestScope, admit admission.Interface) http.HandlerFunc { … }

func withAuthorization(validate rest.ValidateObjectFunc, a authorizer.Authorizer, attributes authorizer.Attributes) rest.ValidateObjectFunc { … }

// updateToCreateOptions creates a CreateOptions with the same field values as the provided UpdateOptions.
func updateToCreateOptions(uo *metav1.UpdateOptions) *metav1.CreateOptions { … }