kubernetes/staging/src/k8s.io/apiserver/pkg/registry/generic/matcher.go

// ObjectMetaFieldsSet returns a fields that represent the ObjectMeta.
func ObjectMetaFieldsSet(objectMeta *metav1.ObjectMeta, hasNamespaceField bool) fields.Set { … }

// AdObjectMetaField add fields that represent the ObjectMeta to source.
func AddObjectMetaFieldsSet(source fields.Set, objectMeta *metav1.ObjectMeta, hasNamespaceField bool) fields.Set { … }

// MergeFieldsSets merges a fields'set from fragment into the source.
func MergeFieldsSets(source fields.Set, fragment fields.Set) fields.Set { … }