limitations under the License.
*/

package conversion

import (
	"fmt"
	"reflect"
)

// EnforcePtr ensures that obj is a pointer of some sort. Returns a reflect.Value
// of the dereferenced pointer, ensuring that it is settable/addressable.
// Returns an error if this is not possible.
func EnforcePtr(obj interface{}) (reflect.Value, error) {
	v := reflect.ValueOf(obj)
	if v.Kind() != reflect.Pointer {

func TestInvalidPtrValueKind(t *testing.T) {
	var simple interface{}
	switch obj := simple.(type) {
	default:
		_, err := EnforcePtr(obj)
		if err == nil {
			t.Errorf("Expected error on invalid kind")
		}
	}
}

func TestEnforceNilPtr(t *testing.T) {
	var nilPtr *struct{}
	_, err := EnforcePtr(nilPtr)
	if err == nil {
		t.Errorf("Expected error on nil pointer")
	}

	}
	return obj, nil
}

// getItemsPtr returns a pointer to the list object's Items member or an error.
func getItemsPtr(list runtime.Object) (interface{}, error) {
	v, err := conversion.EnforcePtr(list)
	if err != nil {
		return nil, err
	}

	items := v.FieldByName("Items")
	if !items.IsValid() {
		return nil, errExpectFieldItems
	}
	switch items.Kind() {
	case reflect.Interface, reflect.Pointer:

	field := v.FieldByName(fieldName)
	if !field.IsValid() {
		return fmt.Errorf("couldn't find %v field in %T", fieldName, v.Interface())
	}
	destValue, err := conversion.EnforcePtr(dest)
	if err != nil {
		return err
	}
	if field.Type().AssignableTo(destValue.Type()) {
		destValue.Set(field)
		return nil
	}
	if field.Type().ConvertibleTo(destValue.Type()) {

		return fn(src, dest, scope)
	}
	if fn, ok := c.generatedConversionFuncs.untyped[pair]; ok {
		return fn(src, dest, scope)
	}

	dv, err := EnforcePtr(dest)
	if err != nil {
		return err
	}
	sv, err := EnforcePtr(src)
	if err != nil {
		return err
	}
	return fmt.Errorf("converting (%s) to (%s): unknown conversion", sv.Type(), dv.Type())

	preconditions *storage.Preconditions, tryUpdate storage.UpdateFunc, dryRun bool, cachedExistingObject runtime.Object) error {
	if dryRun {
		var current runtime.Object
		v, err := conversion.EnforcePtr(destination)
		if err != nil {
			return fmt.Errorf("unable to convert output object to pointer: %v", err)
		}
		if u, ok := v.Addr().Interface().(runtime.Unstructured); ok {
			current = u.NewEmptyInstance()
		} else {

	validateDeletion storage.ValidateObjectFunc, cachedExistingObject runtime.Object) error {
	preparedKey, err := s.prepareKey(key)
	if err != nil {
		return err
	}
	v, err := conversion.EnforcePtr(out)
	if err != nil {
		return fmt.Errorf("unable to convert output object to pointer: %v", err)
	}
	return s.conditionalDelete(ctx, preparedKey, out, v, preconditions, validateDeletion, cachedExistingObject)
}

		}
		if len(gvk.Version) == 0 {
			return nil, false, NewMissingVersionErr("unstructured object has no version")
		}
		return []schema.GroupVersionKind{gvk}, false, nil
	}

	v, err := conversion.EnforcePtr(obj)
	if err != nil {
		return nil, false, err
	}
	t := v.Type()

	gvks, ok := s.typeToGVK[t]
	if !ok {
		return nil, false, NewNotRegisteredErrForType(s.schemeName, t)
	}

// api conventions).
func TypeAccessor(obj interface{}) (Type, error) {
	if typed, ok := obj.(runtime.Object); ok {
		return objectAccessor{typed}, nil
	}
	v, err := conversion.EnforcePtr(obj)
	if err != nil {
		return nil, err
	}
	t := v.Type()
	if v.Kind() != reflect.Struct {
		return nil, fmt.Errorf("expected struct, but got %v: %v (%#v)", v.Kind(), t, v.Interface())
	}

			return c.storage.Get(ctx, key, opts, objPtr)
		}
		if err := c.ready.wait(ctx); err != nil {
			return errors.NewServiceUnavailable(err.Error())
		}
	}

	objVal, err := conversion.EnforcePtr(objPtr)
	if err != nil {
		return err
	}

	obj, exists, readResourceVersion, err := c.watchCache.WaitUntilFreshAndGet(ctx, getRV, key)
	if err != nil {
		return err
	}

	if exists {