Merge pull request #83709 from wojtek-t/autogenerate_decode_parameters

Autogenerate conversions for decoding parameters

pkg/apis/core/v1/zz_generated.conversion.go

@@ -21,6 +21,7 @@ limitations under the License.
 package v1
 
 import (
+	url "net/url"
 	unsafe "unsafe"
 
 	v1 "k8s.io/api/core/v1"
@@ -2080,6 +2081,21 @@ func RegisterConversions(s *runtime.Scheme) error {
 	}); err != nil {
 		return err
 	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*v1.NodeProxyOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_NodeProxyOptions(a.(*url.Values), b.(*v1.NodeProxyOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*v1.PodProxyOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_PodProxyOptions(a.(*url.Values), b.(*v1.PodProxyOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*v1.ServiceProxyOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_ServiceProxyOptions(a.(*url.Values), b.(*v1.ServiceProxyOptions), scope)
+	}); err != nil {
+		return err
+	}
 	if err := s.AddConversionFunc((*apps.ReplicaSetSpec)(nil), (*v1.ReplicationControllerSpec)(nil), func(a, b interface{}, scope conversion.Scope) error {
 		return Convert_apps_ReplicaSetSpec_To_v1_ReplicationControllerSpec(a.(*apps.ReplicaSetSpec), b.(*v1.ReplicationControllerSpec), scope)
 	}); err != nil {
@@ -4743,6 +4759,24 @@ func Convert_core_NodeProxyOptions_To_v1_NodeProxyOptions(in *core.NodeProxyOpti
 	return autoConvert_core_NodeProxyOptions_To_v1_NodeProxyOptions(in, out, s)
 }
 
+func autoConvert_url_Values_To_v1_NodeProxyOptions(in *url.Values, out *v1.NodeProxyOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["path"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.Path, s); err != nil {
+			return err
+		}
+	} else {
+		out.Path = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_NodeProxyOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_NodeProxyOptions(in *url.Values, out *v1.NodeProxyOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_NodeProxyOptions(in, out, s)
+}
+
 func autoConvert_v1_NodeResources_To_core_NodeResources(in *v1.NodeResources, out *core.NodeResources, s conversion.Scope) error {
 	out.Capacity = *(*core.ResourceList)(unsafe.Pointer(&in.Capacity))
 	return nil
@@ -5732,6 +5766,24 @@ func Convert_core_PodProxyOptions_To_v1_PodProxyOptions(in *core.PodProxyOptions
 	return autoConvert_core_PodProxyOptions_To_v1_PodProxyOptions(in, out, s)
 }
 
+func autoConvert_url_Values_To_v1_PodProxyOptions(in *url.Values, out *v1.PodProxyOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["path"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.Path, s); err != nil {
+			return err
+		}
+	} else {
+		out.Path = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_PodProxyOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_PodProxyOptions(in *url.Values, out *v1.PodProxyOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_PodProxyOptions(in, out, s)
+}
+
 func autoConvert_v1_PodReadinessGate_To_core_PodReadinessGate(in *v1.PodReadinessGate, out *core.PodReadinessGate, s conversion.Scope) error {
 	out.ConditionType = core.PodConditionType(in.ConditionType)
 	return nil
@@ -7270,6 +7322,24 @@ func Convert_core_ServiceProxyOptions_To_v1_ServiceProxyOptions(in *core.Service
 	return autoConvert_core_ServiceProxyOptions_To_v1_ServiceProxyOptions(in, out, s)
 }
 
+func autoConvert_url_Values_To_v1_ServiceProxyOptions(in *url.Values, out *v1.ServiceProxyOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["path"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.Path, s); err != nil {
+			return err
+		}
+	} else {
+		out.Path = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_ServiceProxyOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_ServiceProxyOptions(in *url.Values, out *v1.ServiceProxyOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_ServiceProxyOptions(in, out, s)
+}
+
 func autoConvert_v1_ServiceSpec_To_core_ServiceSpec(in *v1.ServiceSpec, out *core.ServiceSpec, s conversion.Scope) error {
 	out.Ports = *(*[]core.ServicePort)(unsafe.Pointer(&in.Ports))
 	out.Selector = *(*map[string]string)(unsafe.Pointer(&in.Selector))

staging/src/k8s.io/api/core/v1/types.go

@@ -4911,6 +4911,7 @@ type PodPortForwardOptions struct {
 	Ports []int32 `json:"ports,omitempty" protobuf:"varint,1,rep,name=ports"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // PodProxyOptions is the query options to a Pod's proxy call.
@@ -4922,6 +4923,7 @@ type PodProxyOptions struct {
 	Path string `json:"path,omitempty" protobuf:"bytes,1,opt,name=path"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // NodeProxyOptions is the query options to a Node's proxy call.
@@ -4933,6 +4935,7 @@ type NodeProxyOptions struct {
 	Path string `json:"path,omitempty" protobuf:"bytes,1,opt,name=path"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // ServiceProxyOptions is the query options to a Service's proxy call.

staging/src/k8s.io/apimachinery/pkg/apis/meta/internalversion/register.go

@@ -95,4 +95,5 @@ func addToGroupVersion(scheme *runtime.Scheme) error {
 // the logic for conversion private.
 func init() {
 	localSchemeBuilder.Register(addToGroupVersion)
+	localSchemeBuilder.Register(metav1.RegisterConversions)
 }

staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/BUILD

@@ -54,6 +54,7 @@ go_library(
         "types.go",
         "types_swagger_doc_generated.go",
         "watch.go",
+        "zz_generated.conversion.go",
         "zz_generated.deepcopy.go",
         "zz_generated.defaults.go",
     ],

staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/doc.go

@@ -14,6 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+// +k8s:conversion-gen=false
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
 // +k8s:defaulter-gen=TypeMeta

staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/register.go

@@ -25,6 +25,13 @@ import (
 // GroupName is the group name for this API.
 const GroupName = "meta.k8s.io"
 
+var (
+	// localSchemeBuilder is used to make compiler happy for autogenerated
+	// conversions. However, it's not used.
+	schemeBuilder      runtime.SchemeBuilder
+	localSchemeBuilder = &schemeBuilder
+)
+
 // SchemeGroupVersion is group version used to register these objects
 var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: "v1"}
 

staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/types.go

@@ -322,6 +322,7 @@ type OwnerReference struct {
 	BlockOwnerDeletion *bool `json:"blockOwnerDeletion,omitempty" protobuf:"varint,7,opt,name=blockOwnerDeletion"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // ListOptions is the query options to a standard REST list call.
@@ -401,6 +402,7 @@ type ListOptions struct {
 	Continue string `json:"continue,omitempty" protobuf:"bytes,8,opt,name=continue"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // ExportOptions is the query options to the standard REST get call.
@@ -415,6 +417,7 @@ type ExportOptions struct {
 	Exact bool `json:"exact" protobuf:"varint,2,opt,name=exact"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // GetOptions is the standard query options to the standard REST get call.
@@ -497,6 +500,7 @@ type DeleteOptions struct {
 	DryRun []string `json:"dryRun,omitempty" protobuf:"bytes,5,rep,name=dryRun"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // CreateOptions may be provided when creating an API object.
@@ -520,6 +524,7 @@ type CreateOptions struct {
 	FieldManager string `json:"fieldManager,omitempty" protobuf:"bytes,3,name=fieldManager"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // PatchOptions may be provided when patching an API object.
@@ -552,6 +557,7 @@ type PatchOptions struct {
 	FieldManager string `json:"fieldManager,omitempty" protobuf:"bytes,3,name=fieldManager"`
 }
 
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 
 // UpdateOptions may be provided when updating an API object.
@@ -1264,6 +1270,7 @@ const (
 )
 
 // TableOptions are used when a Table is requested by the caller.
+// +k8s:conversion-gen:explicit-from=net/url.Values
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 type TableOptions struct {
 	TypeMeta `json:",inline"`

staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/zz_generated.conversion.go

@@ -0,0 +1,475 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by conversion-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	url "net/url"
+	unsafe "unsafe"
+
+	resource "k8s.io/apimachinery/pkg/api/resource"
+	conversion "k8s.io/apimachinery/pkg/conversion"
+	fields "k8s.io/apimachinery/pkg/fields"
+	labels "k8s.io/apimachinery/pkg/labels"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	intstr "k8s.io/apimachinery/pkg/util/intstr"
+	watch "k8s.io/apimachinery/pkg/watch"
+)
+
+func init() {
+	localSchemeBuilder.Register(RegisterConversions)
+}
+
+// RegisterConversions adds conversion functions to the given scheme.
+// Public to allow building arbitrary schemes.
+func RegisterConversions(s *runtime.Scheme) error {
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*CreateOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_CreateOptions(a.(*url.Values), b.(*CreateOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*ExportOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_ExportOptions(a.(*url.Values), b.(*ExportOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*GetOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_GetOptions(a.(*url.Values), b.(*GetOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*ListOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_ListOptions(a.(*url.Values), b.(*ListOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*PatchOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_PatchOptions(a.(*url.Values), b.(*PatchOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*TableOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_TableOptions(a.(*url.Values), b.(*TableOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddGeneratedConversionFunc((*url.Values)(nil), (*UpdateOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_url_Values_To_v1_UpdateOptions(a.(*url.Values), b.(*UpdateOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*map[string]string)(nil), (*LabelSelector)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Map_string_To_string_To_v1_LabelSelector(a.(*map[string]string), b.(*LabelSelector), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**bool)(nil), (*bool)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_bool_To_bool(a.(**bool), b.(*bool), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**float64)(nil), (*float64)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_float64_To_float64(a.(**float64), b.(*float64), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**int32)(nil), (*int32)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_int32_To_int32(a.(**int32), b.(*int32), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**int64)(nil), (*int)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_int64_To_int(a.(**int64), b.(*int), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**int64)(nil), (*int64)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_int64_To_int64(a.(**int64), b.(*int64), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**intstr.IntOrString)(nil), (*intstr.IntOrString)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_intstr_IntOrString_To_intstr_IntOrString(a.(**intstr.IntOrString), b.(*intstr.IntOrString), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**string)(nil), (*string)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_string_To_string(a.(**string), b.(*string), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((**Duration)(nil), (*Duration)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Pointer_v1_Duration_To_v1_Duration(a.(**Duration), b.(*Duration), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*[]int32)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_Slice_int32(a.(*[]string), b.(*[]int32), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*DeletionPropagation)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_v1_DeletionPropagation(a.(*[]string), b.(*DeletionPropagation), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*IncludeObjectPolicy)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_v1_IncludeObjectPolicy(a.(*[]string), b.(*IncludeObjectPolicy), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*[]string)(nil), (*Time)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_Slice_string_To_v1_Time(a.(*[]string), b.(*Time), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*bool)(nil), (**bool)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_bool_To_Pointer_bool(a.(*bool), b.(**bool), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*fields.Selector)(nil), (*string)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_fields_Selector_To_string(a.(*fields.Selector), b.(*string), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*float64)(nil), (**float64)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_float64_To_Pointer_float64(a.(*float64), b.(**float64), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*int32)(nil), (**int32)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_int32_To_Pointer_int32(a.(*int32), b.(**int32), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*int64)(nil), (**int64)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_int64_To_Pointer_int64(a.(*int64), b.(**int64), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*int)(nil), (**int64)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_int_To_Pointer_int64(a.(*int), b.(**int64), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*intstr.IntOrString)(nil), (**intstr.IntOrString)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_intstr_IntOrString_To_Pointer_intstr_IntOrString(a.(*intstr.IntOrString), b.(**intstr.IntOrString), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*intstr.IntOrString)(nil), (*intstr.IntOrString)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_intstr_IntOrString_To_intstr_IntOrString(a.(*intstr.IntOrString), b.(*intstr.IntOrString), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*labels.Selector)(nil), (*string)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_labels_Selector_To_string(a.(*labels.Selector), b.(*string), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*resource.Quantity)(nil), (*resource.Quantity)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_resource_Quantity_To_resource_Quantity(a.(*resource.Quantity), b.(*resource.Quantity), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*string)(nil), (**string)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_string_To_Pointer_string(a.(*string), b.(**string), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*string)(nil), (*fields.Selector)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_string_To_fields_Selector(a.(*string), b.(*fields.Selector), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*string)(nil), (*labels.Selector)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_string_To_labels_Selector(a.(*string), b.(*labels.Selector), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*DeleteOptions)(nil), (*DeleteOptions)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_DeleteOptions_To_v1_DeleteOptions(a.(*DeleteOptions), b.(*DeleteOptions), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*Duration)(nil), (**Duration)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_Duration_To_Pointer_v1_Duration(a.(*Duration), b.(**Duration), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*InternalEvent)(nil), (*WatchEvent)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_InternalEvent_To_v1_WatchEvent(a.(*InternalEvent), b.(*WatchEvent), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*LabelSelector)(nil), (*map[string]string)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_LabelSelector_To_Map_string_To_string(a.(*LabelSelector), b.(*map[string]string), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*ListMeta)(nil), (*ListMeta)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_ListMeta_To_v1_ListMeta(a.(*ListMeta), b.(*ListMeta), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*MicroTime)(nil), (*MicroTime)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_MicroTime_To_v1_MicroTime(a.(*MicroTime), b.(*MicroTime), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*Time)(nil), (*Time)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_Time_To_v1_Time(a.(*Time), b.(*Time), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*TypeMeta)(nil), (*TypeMeta)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_TypeMeta_To_v1_TypeMeta(a.(*TypeMeta), b.(*TypeMeta), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*WatchEvent)(nil), (*InternalEvent)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_WatchEvent_To_v1_InternalEvent(a.(*WatchEvent), b.(*InternalEvent), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*WatchEvent)(nil), (*watch.Event)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_v1_WatchEvent_To_watch_Event(a.(*WatchEvent), b.(*watch.Event), scope)
+	}); err != nil {
+		return err
+	}
+	if err := s.AddConversionFunc((*watch.Event)(nil), (*WatchEvent)(nil), func(a, b interface{}, scope conversion.Scope) error {
+		return Convert_watch_Event_To_v1_WatchEvent(a.(*watch.Event), b.(*WatchEvent), scope)
+	}); err != nil {
+		return err
+	}
+	return nil
+}
+
+func autoConvert_url_Values_To_v1_CreateOptions(in *url.Values, out *CreateOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["dryRun"]; ok && len(values) > 0 {
+		out.DryRun = *(*[]string)(unsafe.Pointer(&values))
+	} else {
+		out.DryRun = nil
+	}
+	if values, ok := map[string][]string(*in)["fieldManager"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.FieldManager, s); err != nil {
+			return err
+		}
+	} else {
+		out.FieldManager = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_CreateOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_CreateOptions(in *url.Values, out *CreateOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_CreateOptions(in, out, s)
+}
+
+func autoConvert_url_Values_To_v1_ExportOptions(in *url.Values, out *ExportOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["export"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_bool(&values, &out.Export, s); err != nil {
+			return err
+		}
+	} else {
+		out.Export = false
+	}
+	if values, ok := map[string][]string(*in)["exact"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_bool(&values, &out.Exact, s); err != nil {
+			return err
+		}
+	} else {
+		out.Exact = false
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_ExportOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_ExportOptions(in *url.Values, out *ExportOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_ExportOptions(in, out, s)
+}
+
+func autoConvert_url_Values_To_v1_GetOptions(in *url.Values, out *GetOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["resourceVersion"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.ResourceVersion, s); err != nil {
+			return err
+		}
+	} else {
+		out.ResourceVersion = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_GetOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_GetOptions(in *url.Values, out *GetOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_GetOptions(in, out, s)
+}
+
+func autoConvert_url_Values_To_v1_ListOptions(in *url.Values, out *ListOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["labelSelector"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.LabelSelector, s); err != nil {
+			return err
+		}
+	} else {
+		out.LabelSelector = ""
+	}
+	if values, ok := map[string][]string(*in)["fieldSelector"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.FieldSelector, s); err != nil {
+			return err
+		}
+	} else {
+		out.FieldSelector = ""
+	}
+	if values, ok := map[string][]string(*in)["watch"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_bool(&values, &out.Watch, s); err != nil {
+			return err
+		}
+	} else {
+		out.Watch = false
+	}
+	if values, ok := map[string][]string(*in)["allowWatchBookmarks"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_bool(&values, &out.AllowWatchBookmarks, s); err != nil {
+			return err
+		}
+	} else {
+		out.AllowWatchBookmarks = false
+	}
+	if values, ok := map[string][]string(*in)["resourceVersion"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.ResourceVersion, s); err != nil {
+			return err
+		}
+	} else {
+		out.ResourceVersion = ""
+	}
+	if values, ok := map[string][]string(*in)["timeoutSeconds"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_Pointer_int64(&values, &out.TimeoutSeconds, s); err != nil {
+			return err
+		}
+	} else {
+		out.TimeoutSeconds = nil
+	}
+	if values, ok := map[string][]string(*in)["limit"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_int64(&values, &out.Limit, s); err != nil {
+			return err
+		}
+	} else {
+		out.Limit = 0
+	}
+	if values, ok := map[string][]string(*in)["continue"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.Continue, s); err != nil {
+			return err
+		}
+	} else {
+		out.Continue = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_ListOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_ListOptions(in *url.Values, out *ListOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_ListOptions(in, out, s)
+}
+
+func autoConvert_url_Values_To_v1_PatchOptions(in *url.Values, out *PatchOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["dryRun"]; ok && len(values) > 0 {
+		out.DryRun = *(*[]string)(unsafe.Pointer(&values))
+	} else {
+		out.DryRun = nil
+	}
+	if values, ok := map[string][]string(*in)["force"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_Pointer_bool(&values, &out.Force, s); err != nil {
+			return err
+		}
+	} else {
+		out.Force = nil
+	}
+	if values, ok := map[string][]string(*in)["fieldManager"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.FieldManager, s); err != nil {
+			return err
+		}
+	} else {
+		out.FieldManager = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_PatchOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_PatchOptions(in *url.Values, out *PatchOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_PatchOptions(in, out, s)
+}
+
+func autoConvert_url_Values_To_v1_TableOptions(in *url.Values, out *TableOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["-"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_bool(&values, &out.NoHeaders, s); err != nil {
+			return err
+		}
+	} else {
+		out.NoHeaders = false
+	}
+	if values, ok := map[string][]string(*in)["includeObject"]; ok && len(values) > 0 {
+		if err := Convert_Slice_string_To_v1_IncludeObjectPolicy(&values, &out.IncludeObject, s); err != nil {
+			return err
+		}
+	} else {
+		out.IncludeObject = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_TableOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_TableOptions(in *url.Values, out *TableOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_TableOptions(in, out, s)
+}
+
+func autoConvert_url_Values_To_v1_UpdateOptions(in *url.Values, out *UpdateOptions, s conversion.Scope) error {
+	// WARNING: Field TypeMeta does not have json tag, skipping.
+
+	if values, ok := map[string][]string(*in)["dryRun"]; ok && len(values) > 0 {
+		out.DryRun = *(*[]string)(unsafe.Pointer(&values))
+	} else {
+		out.DryRun = nil
+	}
+	if values, ok := map[string][]string(*in)["fieldManager"]; ok && len(values) > 0 {
+		if err := runtime.Convert_Slice_string_To_string(&values, &out.FieldManager, s); err != nil {
+			return err
+		}
+	} else {
+		out.FieldManager = ""
+	}
+	return nil
+}
+
+// Convert_url_Values_To_v1_UpdateOptions is an autogenerated conversion function.
+func Convert_url_Values_To_v1_UpdateOptions(in *url.Values, out *UpdateOptions, s conversion.Scope) error {
+	return autoConvert_url_Values_To_v1_UpdateOptions(in, out, s)
+}

staging/src/k8s.io/apimachinery/pkg/runtime/conversion.go

@@ -102,6 +102,27 @@ func Convert_Slice_string_To_bool(in *[]string, out *bool, s conversion.Scope) e
 	return nil
 }
 
+// Convert_Slice_string_To_bool will convert a string parameter to boolean.
+// Only the absence of a value (i.e. zero-length slice), a value of "false", or a
+// value of "0" resolve to false.
+// Any other value (including empty string) resolves to true.
+func Convert_Slice_string_To_Pointer_bool(in *[]string, out **bool, s conversion.Scope) error {
+	if len(*in) == 0 {
+		boolVar := false
+		*out = &boolVar
+		return nil
+	}
+	switch {
+	case (*in)[0] == "0", strings.EqualFold((*in)[0], "false"):
+		boolVar := false
+		*out = &boolVar
+	default:
+		boolVar := true
+		*out = &boolVar
+	}
+	return nil
+}
+
 func string_to_int64(in string) (int64, error) {
 	return strconv.ParseInt(in, 10, 64)
 }

staging/src/k8s.io/code-generator/cmd/conversion-gen/generators/conversion.go

@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"io"
 	"path/filepath"
+	"reflect"
 	"sort"
 	"strings"
 
@@ -41,6 +42,9 @@ const (
 	// e.g., "+k8s:conversion-gen=false" in a type's comment will let
 	// conversion-gen skip that type.
 	tagName = "k8s:conversion-gen"
+	// e.g. "+k8s:conversion-gen:explicit-from=net/url.Values" in the type comment
+	// will result in generating conversion from net/url.Values.
+	explicitFromTagName = "k8s:conversion-gen:explicit-from"
 	// e.g., "+k8s:conversion-gen-external-types=<type-pkg>" in doc.go, where
 	// <type-pkg> is the relative path to the package the types are defined in.
 	externalTypesTagName = "k8s:conversion-gen-external-types"
@@ -50,6 +54,10 @@ func extractTag(comments []string) []string {
 	return types.ExtractCommentTags("+", comments)[tagName]
 }
 
+func extractExplicitFromTag(comments []string) []string {
+	return types.ExtractCommentTags("+", comments)[explicitFromTagName]
+}
+
 func extractExternalTypesTag(comments []string) []string {
 	return types.ExtractCommentTags("+", comments)[externalTypesTagName]
 }
@@ -240,14 +248,22 @@ func Packages(context *generator.Context, arguments *args.GeneratorArgs) generat
 		peerPkgs := extractTag(pkg.Comments)
 		if peerPkgs != nil {
 			klog.V(5).Infof("  tags: %q", peerPkgs)
+			if len(peerPkgs) == 1 && peerPkgs[0] == "false" {
+				// If a single +k8s:conversion-gen=false tag is defined, we still want
+				// the generator to fire for this package for explicit conversions, but
+				// we are clearing the peerPkgs to not generate any standard conversions.
+				peerPkgs = nil
+			}
 		} else {
 			klog.V(5).Infof("  no tag")
 			continue
 		}
 		skipUnsafe := false
 		if customArgs, ok := arguments.CustomArgs.(*conversionargs.CustomArgs); ok {
-			peerPkgs = append(peerPkgs, customArgs.BasePeerDirs...)
-			peerPkgs = append(peerPkgs, customArgs.ExtraPeerDirs...)
+			if len(peerPkgs) > 0 {
+				peerPkgs = append(peerPkgs, customArgs.BasePeerDirs...)
+				peerPkgs = append(peerPkgs, customArgs.ExtraPeerDirs...)
+			}
 			skipUnsafe = customArgs.SkipUnsafe
 		}
 
@@ -457,12 +473,13 @@ type genConversion struct {
 	// the package that the conversion funcs are going to be output to
 	outputPackage string
 	// packages that contain the peer of types in typesPacakge
-	peerPackages      []string
-	manualConversions conversionFuncMap
-	imports           namer.ImportTracker
-	types             []*types.Type
-	skippedFields     map[*types.Type][]string
-	useUnsafe         TypesEqual
+	peerPackages        []string
+	manualConversions   conversionFuncMap
+	imports             namer.ImportTracker
+	types               []*types.Type
+	explicitConversions []conversionPair
+	skippedFields       map[*types.Type][]string
+	useUnsafe           TypesEqual
 }
 
 func NewGenConversion(sanitizedName, typesPackage, outputPackage string, manualConversions conversionFuncMap, peerPkgs []string, useUnsafe TypesEqual) generator.Generator {
@@ -470,14 +487,15 @@ func NewGenConversion(sanitizedName, typesPackage, outputPackage string, manualC
 		DefaultGen: generator.DefaultGen{
 			OptionalName: sanitizedName,
 		},
-		typesPackage:      typesPackage,
-		outputPackage:     outputPackage,
-		peerPackages:      peerPkgs,
-		manualConversions: manualConversions,
-		imports:           generator.NewImportTracker(),
-		types:             []*types.Type{},
-		skippedFields:     map[*types.Type][]string{},
-		useUnsafe:         useUnsafe,
+		typesPackage:        typesPackage,
+		outputPackage:       outputPackage,
+		peerPackages:        peerPkgs,
+		manualConversions:   manualConversions,
+		imports:             generator.NewImportTracker(),
+		types:               []*types.Type{},
+		explicitConversions: []conversionPair{},
+		skippedFields:       map[*types.Type][]string{},
+		useUnsafe:           useUnsafe,
 	}
 }
 
@@ -534,17 +552,55 @@ func (g *genConversion) convertibleOnlyWithinPackage(inType, outType *types.Type
 	return true
 }
 
-func (g *genConversion) Filter(c *generator.Context, t *types.Type) bool {
-	peerType := getPeerTypeFor(c, t, g.peerPackages)
-	if peerType == nil {
-		return false
-	}
-	if !g.convertibleOnlyWithinPackage(t, peerType) {
-		return false
+func getExplicitFromTypes(t *types.Type) []types.Name {
+	comments := append(t.SecondClosestCommentLines, t.CommentLines...)
+	paths := extractExplicitFromTag(comments)
+	result := []types.Name{}
+	for _, path := range paths {
+		items := strings.Split(path, ".")
+		if len(items) != 2 {
+			klog.Errorf("Unexpected k8s:conversion-gen:explicit-from tag: %s", path)
+			continue
+		}
+		switch {
+		case items[0] == "net/url" && items[1] == "Values":
+		default:
+			klog.Fatalf("Not supported k8s:conversion-gen:explicit-from tag: %s", path)
+		}
+		result = append(result, types.Name{Package: items[0], Name: items[1]})
 	}
+	return result
+}
 
-	g.types = append(g.types, t)
-	return true
+func (g *genConversion) Filter(c *generator.Context, t *types.Type) bool {
+	convertibleWithPeer := func() bool {
+		peerType := getPeerTypeFor(c, t, g.peerPackages)
+		if peerType == nil {
+			return false
+		}
+		if !g.convertibleOnlyWithinPackage(t, peerType) {
+			return false
+		}
+		g.types = append(g.types, t)
+		return true
+	}()
+
+	explicitlyConvertible := func() bool {
+		inTypes := getExplicitFromTypes(t)
+		if len(inTypes) == 0 {
+			return false
+		}
+		for i := range inTypes {
+			pair := conversionPair{
+				inType:  &types.Type{Name: inTypes[i]},
+				outType: t,
+			}
+			g.explicitConversions = append(g.explicitConversions, pair)
+		}
+		return true
+	}()
+
+	return convertibleWithPeer || explicitlyConvertible
 }
 
 func (g *genConversion) isOtherPackage(pkg string) bool {
@@ -618,6 +674,12 @@ func (g *genConversion) Init(c *generator.Context, w io.Writer) error {
 		args = argsFromType(peerType, t).With("Scope", types.Ref(conversionPackagePath, "Scope"))
 		sw.Do("if err := s.AddGeneratedConversionFunc((*$.inType|raw$)(nil), (*$.outType|raw$)(nil), func(a, b interface{}, scope $.Scope|raw$) error { return "+nameTmpl+"(a.(*$.inType|raw$), b.(*$.outType|raw$), scope) }); err != nil { return err }\n", args)
 	}
+
+	for i := range g.explicitConversions {
+		args := argsFromType(g.explicitConversions[i].inType, g.explicitConversions[i].outType).With("Scope", types.Ref(conversionPackagePath, "Scope"))
+		sw.Do("if err := s.AddGeneratedConversionFunc((*$.inType|raw$)(nil), (*$.outType|raw$)(nil), func(a, b interface{}, scope $.Scope|raw$) error { return "+nameTmpl+"(a.(*$.inType|raw$), b.(*$.outType|raw$), scope) }); err != nil { return err }\n", args)
+	}
+
 	var pairs []conversionPair
 	for pair, t := range g.manualConversions {
 		if t.Name.Package != g.outputPackage {
@@ -644,10 +706,32 @@ func (g *genConversion) Init(c *generator.Context, w io.Writer) error {
 
 func (g *genConversion) GenerateType(c *generator.Context, t *types.Type, w io.Writer) error {
 	klog.V(5).Infof("generating for type %v", t)
-	peerType := getPeerTypeFor(c, t, g.peerPackages)
 	sw := generator.NewSnippetWriter(w, c, "$", "$")
-	g.generateConversion(t, peerType, sw)
-	g.generateConversion(peerType, t, sw)
+
+	if peerType := getPeerTypeFor(c, t, g.peerPackages); peerType != nil {
+		g.generateConversion(t, peerType, sw)
+		g.generateConversion(peerType, t, sw)
+	}
+
+	for _, inTypeName := range getExplicitFromTypes(t) {
+		inPkg, ok := c.Universe[inTypeName.Package]
+		if !ok {
+			klog.Errorf("Unrecognized package: %s", inTypeName.Package)
+			continue
+		}
+		inType, ok := inPkg.Types[inTypeName.Name]
+		if !ok {
+			klog.Errorf("Unrecognized type in package %s: %s", inTypeName.Package, inTypeName.Name)
+			continue
+		}
+		switch {
+		case inType.Name.Package == "net/url" && inType.Name.Name == "Values":
+			g.generateFromUrlValues(inType, t, sw)
+		default:
+			klog.Errorf("Not supported input type: %#v", inType.Name)
+		}
+	}
+
 	return sw.Error()
 }
 
@@ -972,6 +1056,124 @@ func (g *genConversion) doUnknown(inType, outType *types.Type, sw *generator.Sni
 	sw.Do("// FIXME: Type $.|raw$ is unsupported.\n", inType)
 }
 
+func (g *genConversion) generateFromUrlValues(inType, outType *types.Type, sw *generator.SnippetWriter) {
+	args := generator.Args{
+		"inType":  inType,
+		"outType": outType,
+		"Scope":   types.Ref(conversionPackagePath, "Scope"),
+	}
+	sw.Do("func auto"+nameTmpl+"(in *$.inType|raw$, out *$.outType|raw$, s $.Scope|raw$) error {\n", args)
+	for _, outMember := range outType.Members {
+		jsonTag := reflect.StructTag(outMember.Tags).Get("json")
+		index := strings.Index(jsonTag, ",")
+		if index == -1 {
+			index = len(jsonTag)
+		}
+		if index == 0 {
+			memberArgs := generator.Args{
+				"name": outMember.Name,
+			}
+			sw.Do("// WARNING: Field $.name$ does not have json tag, skipping.\n\n", memberArgs)
+			continue
+		}
+		memberArgs := generator.Args{
+			"name": outMember.Name,
+			"tag":  jsonTag[:index],
+		}
+		sw.Do("if values, ok := map[string][]string(*in)[\"$.tag$\"]; ok && len(values) > 0 {\n", memberArgs)
+		g.fromValuesEntry(inType.Underlying.Elem, outMember, sw)
+		sw.Do("} else {\n", nil)
+		g.setZeroValue(outMember, sw)
+		sw.Do("}\n", nil)
+	}
+	sw.Do("return nil\n", nil)
+	sw.Do("}\n\n", nil)
+
+	if _, found := g.preexists(inType, outType); found {
+		// There is a public manual Conversion method: use it.
+	} else {
+		// Emit a public conversion function.
+		sw.Do("// "+nameTmpl+" is an autogenerated conversion function.\n", args)
+		sw.Do("func "+nameTmpl+"(in *$.inType|raw$, out *$.outType|raw$, s $.Scope|raw$) error {\n", args)
+		sw.Do("return auto"+nameTmpl+"(in, out, s)\n", args)
+		sw.Do("}\n\n", nil)
+	}
+}
+
+func (g *genConversion) fromValuesEntry(inType *types.Type, outMember types.Member, sw *generator.SnippetWriter) {
+	memberArgs := generator.Args{
+		"name": outMember.Name,
+		"type": outMember.Type,
+	}
+	if function, ok := g.preexists(inType, outMember.Type); ok {
+		args := memberArgs.With("function", function)
+		sw.Do("if err := $.function|raw$(&values, &out.$.name$, s); err != nil {\n", args)
+		sw.Do("return err\n", nil)
+		sw.Do("}\n", nil)
+		return
+	}
+	switch {
+	case outMember.Type == types.String:
+		sw.Do("out.$.name$ = values[0]\n", memberArgs)
+	case g.useUnsafe.Equal(inType, outMember.Type):
+		args := memberArgs.With("Pointer", types.Ref("unsafe", "Pointer"))
+		switch inType.Kind {
+		case types.Pointer:
+			sw.Do("out.$.name$ = ($.type|raw$)($.Pointer|raw$(&values))\n", args)
+		case types.Map, types.Slice:
+			sw.Do("out.$.name$ = *(*$.type|raw$)($.Pointer|raw$(&values))\n", args)
+		default:
+			// TODO: Support other types to allow more auto-conversions.
+			sw.Do("// FIXME: out.$.name$ is of not yet supported type and requires manual conversion\n", memberArgs)
+		}
+	default:
+		// TODO: Support other types to allow more auto-conversions.
+		sw.Do("// FIXME: out.$.name$ is of not yet supported type and requires manual conversion\n", memberArgs)
+	}
+}
+
+func (g *genConversion) setZeroValue(outMember types.Member, sw *generator.SnippetWriter) {
+	outMemberType := unwrapAlias(outMember.Type)
+	memberArgs := generator.Args{
+		"name":  outMember.Name,
+		"alias": outMember.Type,
+		"type":  outMemberType,
+	}
+
+	switch outMemberType.Kind {
+	case types.Builtin:
+		switch outMemberType {
+		case types.String:
+			sw.Do("out.$.name$ = \"\"\n", memberArgs)
+		case types.Int64, types.Int32, types.Int16, types.Int, types.Uint64, types.Uint32, types.Uint16, types.Uint:
+			sw.Do("out.$.name$ = 0\n", memberArgs)
+		case types.Uintptr, types.Byte:
+			sw.Do("out.$.name$ = 0\n", memberArgs)
+		case types.Float64, types.Float32, types.Float:
+			sw.Do("out.$.name$ = 0\n", memberArgs)
+		case types.Bool:
+			sw.Do("out.$.name$ = false\n", memberArgs)
+		default:
+			sw.Do("// FIXME: out.$.name$ is of unsupported type and requires manual conversion\n", memberArgs)
+		}
+	case types.Struct:
+		if outMemberType == outMember.Type {
+			sw.Do("out.$.name$ = $.type|raw${}\n", memberArgs)
+		} else {
+			sw.Do("out.$.name$ = $.alias|raw$($.type|raw${})\n", memberArgs)
+		}
+	case types.Map, types.Slice, types.Pointer:
+		sw.Do("out.$.name$ = nil\n", memberArgs)
+	case types.Alias:
+		// outMemberType was already unwrapped from aliases - so that should never happen.
+		sw.Do("// FIXME: unexpected error for out.$.name$\n", memberArgs)
+	case types.Interface, types.Array:
+		sw.Do("out.$.name$ = nil\n", memberArgs)
+	default:
+		sw.Do("// FIXME: out.$.name$ is of unsupported type and requires manual conversion\n", memberArgs)
+	}
+}
+
 func isDirectlyAssignable(inType, outType *types.Type) bool {
 	// TODO: This should maybe check for actual assignability between the two
 	// types, rather than superficial traits that happen to indicate it is

staging/src/k8s.io/code-generator/cmd/conversion-gen/main.go

@@ -100,6 +100,15 @@ func main() {
 	pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
 	pflag.Parse()
 
+	// k8s.io/apimachinery/pkg/runtime contains a number of manual conversions,
+	// that we need to generate conversions.
+	// Packages being dependencies of explicitly requested packages are only
+	// partially scanned - only types explicitly used are being traversed.
+	// Not used functions or types are omitted.
+	// Adding this explicitly to InputDirs ensures that the package is fully
+	// scanned and all functions are parsed and processed.
+	genericArgs.InputDirs = append(genericArgs.InputDirs, "k8s.io/apimachinery/pkg/runtime")
+
 	if err := generatorargs.Validate(genericArgs); err != nil {
 		klog.Fatalf("Error: %v", err)
 	}