kubernetes/staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/validation/ratcheting.go

type schemaArgs …

type RatchetingSchemaValidator …

func NewRatchetingSchemaValidator(schema *spec.Schema, rootSchema interface{ … }

func (r *RatchetingSchemaValidator) Validate(new interface{ … }

func (r *RatchetingSchemaValidator) ValidateUpdate(new, old interface{ … }

type ratchetingValueValidator …

func newRatchetingValueValidator(correlation *common.CorrelatedObject, args schemaArgs) *ratchetingValueValidator { … }

// getValidateOption provides a kube-openapi validate.Option for SchemaValidator
// that injects a ratchetingValueValidator to be used for all subkeys and subindices
func (r *ratchetingValueValidator) getValidateOption() validate.Option { … }

// Validate validates the update from r.oldValue to r.value
//
// During evaluation, a temporary tree of ratchetingValueValidator is built for all
// traversed field paths. It is necessary to build the tree to take advantage of
// DeepEqual checks performed by lower levels of the object during validation without
// greatly modifying `kube-openapi`'s implementation.
//
// The tree, and all cache storage/scratch space for the validation of a single
// call to `Validate` is thrown away at the end of the top-level call
// to `Validate`.
//
// `Validate` will create a node in the tree to for each of the explored children.
// The node's main purpose is to store a lazily computed DeepEqual check between
// the oldValue and the currently passed value. If the check is performed, it
// will be stored in the node to be re-used by a parent node during a DeepEqual
// comparison, if necessary.
//
// This call has a side-effect of populating it's `children` variable with
// the explored nodes of the object tree.
func (r *ratchetingValueValidator) Validate(new interface{ … }

// SubPropertyValidator overrides the standard validator constructor for sub-properties by
// returning our special ratcheting variant.
//
// If we can correlate an old value, we return a ratcheting validator to
// use for the child.
//
// If the old value cannot be correlated, then default validation is used.
func (r *ratchetingValueValidator) SubPropertyValidator(field string, schema *spec.Schema, rootSchema interface{ … }

// SubIndexValidator overrides the standard validator constructor for sub-indicies by
// returning our special ratcheting variant.
//
// If we can correlate an old value, we return a ratcheting validator to
// use for the child.
//
// If the old value cannot be correlated, then default validation is used.
func (r *ratchetingValueValidator) SubIndexValidator(index int, schema *spec.Schema, rootSchema interface{ … }

var _ …

func (r ratchetingValueValidator) SetPath(path string) { … }

func (r ratchetingValueValidator) Applies(source interface{ … }

func isTypeMetaField(path string) bool { … }