adding a mock.testType to test the generated client code

cmd/libs/go2idl/client-gen/generators/client-generator.go

@@ -18,9 +18,7 @@ limitations under the License.
 package generators
 
 import (
-	"os"
 	"path/filepath"
-	"strings"
 
 	"k8s.io/kubernetes/cmd/libs/go2idl/args"
 	"k8s.io/kubernetes/cmd/libs/go2idl/generator"
@@ -66,6 +64,10 @@ func Packages(context *generator.Context, arguments *args.GeneratorArgs) generat
 				continue
 			}
 			group := filepath.Base(t.Name.Package)
+			// Special case for the legacy API.
+			if group == "api" {
+				group = ""
+			}
 			if _, found := groupToTypes[group]; !found {
 				groupToTypes[group] = []*types.Type{}
 			}
@@ -74,15 +76,9 @@ func Packages(context *generator.Context, arguments *args.GeneratorArgs) generat
 	}
 
 	return generator.Packages{&generator.DefaultPackage{
-		PackageName: "unversioned",
+		PackageName: filepath.Base(arguments.OutputPackagePath),
 		PackagePath: arguments.OutputPackagePath,
-		HeaderText: append(boilerplate, []byte(
-			`
-// This file was autogenerated by the command:
-// $ `+strings.Join(os.Args, " ")+`
-// Do not edit it manually!
-
-`)...),
+		HeaderText:  boilerplate,
 		PackageDocumentation: []byte(
 			`// Package unversioned has the automatically generated clients for unversioned resources.
 `),

cmd/libs/go2idl/client-gen/generators/generator-for-group.go

@@ -46,13 +46,20 @@ func (g *genGroup) Namers(c *generator.Context) namer.NameSystems {
 }
 
 func (g *genGroup) Imports(c *generator.Context) (imports []string) {
-	return append(g.imports.ImportLines(), "fmt", "strings")
+	return append(g.imports.ImportLines(), "fmt")
 }
 
 func (g *genGroup) GenerateType(c *generator.Context, t *types.Type, w io.Writer) error {
 	sw := generator.NewSnippetWriter(w, c, "$", "$")
 	const pkgUnversioned = "k8s.io/kubernetes/pkg/client/unversioned"
 	const pkgLatest = "k8s.io/kubernetes/pkg/api/latest"
+	prefix := func(group string) string {
+		if group == "" {
+			return `"/api"`
+		}
+		return `"/apis"`
+	}
+
 	m := map[string]interface{}{
 		"group":                      g.group,
 		"Group":                      namer.IC(g.group),
@@ -63,6 +70,7 @@ func (g *genGroup) GenerateType(c *generator.Context, t *types.Type, w io.Writer
 		"RESTClientFor":              c.Universe.Function(types.Name{Package: pkgUnversioned, Name: "RESTClientFor"}),
 		"latestGroup":                c.Universe.Variable(types.Name{Package: pkgLatest, Name: "Group"}),
 		"GroupOrDie":                 c.Universe.Variable(types.Name{Package: pkgLatest, Name: "GroupOrDie"}),
+		"prefix":                     prefix(g.group),
 	}
 	sw.Do(groupInterfaceTemplate, m)
 	sw.Do(groupClientTemplate, m)
@@ -135,19 +143,20 @@ func set$.Group$Defaults(config *$.Config|raw$) error {
 	if err != nil {
 		return err
 	}
-	config.Prefix = "apis/"
+	config.Prefix = $.prefix$
 	if config.UserAgent == "" {
 		config.UserAgent = $.DefaultKubernetesUserAgent|raw$()
 	}
 	// TODO: Unconditionally set the config.Version, until we fix the config.
 	//if config.Version == "" {
-	config.Version = g.GroupVersion
+	copyGroupVersion := g.GroupVersion
+	config.GroupVersion = &copyGroupVersion
 	//}
 
-	versionInterfaces, err := g.InterfacesFor(config.Version)
+	versionInterfaces, err := g.InterfacesFor(*config.GroupVersion)
 	if err != nil {
 		return fmt.Errorf("$.Group$ API version '%s' is not recognized (valid values: %s)",
-			config.Version, strings.Join($.GroupOrDie|raw$("$.group$").Versions, ", "))
+			config.GroupVersion, g.GroupVersions)
 	}
 	config.Codec = versionInterfaces.Codec
 	if config.QPS == 0 {

cmd/libs/go2idl/client-gen/generators/generator-for-type.go

@@ -103,7 +103,7 @@ type $.type|privatePlural$ struct {
 `
 var newStructTemplate = `
 // new$.type|publicPlural$ returns a $.type|publicPlural$
-func new$.type|publicPlural$(c *ExtensionsClient, namespace string) *$.type|privatePlural$ {
+func new$.type|publicPlural$(c *$.Package$Client, namespace string) *$.type|privatePlural$ {
 	return &$.type|privatePlural${
 		client: c,
 		ns:     namespace,
@@ -143,7 +143,7 @@ func (c *$.type|privatePlural$) Delete(name string, options *$.apiDeleteOptions|
 	if options == nil {
 		return c.client.Delete().Namespace(c.ns).Resource("$.type|privatePlural$").Name(name).Do().Error()
 	}
-	body, err := api.Scheme.EncodeToVersion(options, c.client.APIVersion())
+	body, err := api.Scheme.EncodeToVersion(options, c.client.APIVersion().String())
 	if err != nil {
 		return err
 	}

cmd/libs/go2idl/client-gen/main.go

@@ -22,24 +22,42 @@ import (
 	"k8s.io/kubernetes/cmd/libs/go2idl/client-gen/generators"
 
 	"github.com/golang/glog"
+	flag "github.com/spf13/pflag"
 )
 
+var test = flag.BoolP("test", "t", false, "set this flag to generate the client code for the testdata")
+
 func main() {
 	arguments := args.Default()
-
-	// Override defaults. These are Kubernetes specific input and output
-	// locations.
-	arguments.InputDirs = []string{
-		"k8s.io/kubernetes/pkg/api",
-		"k8s.io/kubernetes/pkg/apis/extensions",
-		"k8s.io/kubernetes/pkg/fields",
-		"k8s.io/kubernetes/pkg/labels",
-		"k8s.io/kubernetes/pkg/watch",
-		"k8s.io/kubernetes/pkg/client/unversioned",
-		"k8s.io/kubernetes/pkg/api/latest",
+	flag.Parse()
+	if *test {
+		// Override defaults. These are Kubernetes specific input and output
+		// locations.
+		arguments.InputDirs = []string{
+			"k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup",
+			"k8s.io/kubernetes/pkg/fields",
+			"k8s.io/kubernetes/pkg/labels",
+			"k8s.io/kubernetes/pkg/watch",
+			"k8s.io/kubernetes/pkg/client/unversioned",
+			"k8s.io/kubernetes/pkg/api/latest",
+		}
+		// We may change the output path later.
+		arguments.OutputPackagePath = "k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testoutput"
+	} else {
+		// Override defaults. These are Kubernetes specific input and output
+		// locations.
+		arguments.InputDirs = []string{
+			"k8s.io/kubernetes/pkg/api",
+			"k8s.io/kubernetes/pkg/apis/extensions",
+			"k8s.io/kubernetes/pkg/fields",
+			"k8s.io/kubernetes/pkg/labels",
+			"k8s.io/kubernetes/pkg/watch",
+			"k8s.io/kubernetes/pkg/client/unversioned",
+			"k8s.io/kubernetes/pkg/api/latest",
+		}
+		// We may change the output path later.
+		arguments.OutputPackagePath = "k8s.io/kubernetes/pkg/client/clientset/unversioned"
 	}
-	// We may change the output path later.
-	arguments.OutputPackagePath = "k8s.io/kubernetes/pkg/client/clientset/unversioned"
 
 	if err := arguments.Execute(
 		generators.NameSystems(),

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/install/install.go

@@ -0,0 +1,93 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+// Package install installs the experimental API group, making it available as
+// an option to all of the API encoding/decoding machinery.
+package install
+
+import (
+	"fmt"
+
+	"github.com/golang/glog"
+
+	"k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup/v1"
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/latest"
+	"k8s.io/kubernetes/pkg/api/meta"
+	"k8s.io/kubernetes/pkg/api/registered"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/util/sets"
+)
+
+const importPrefix = "k8s.io/kubernetes/pkg/apis/testgroup"
+
+var accessor = meta.NewAccessor()
+
+func init() {
+	registered.RegisteredGroupVersions = append(registered.RegisteredGroupVersions, v1.SchemeGroupVersion)
+	groupMeta, err := latest.RegisterGroup("testgroup")
+	if err != nil {
+		glog.V(4).Infof("%v", err)
+		return
+	}
+
+	registeredGroupVersions := []unversioned.GroupVersion{
+		{
+			"testgroup",
+			"v1",
+		},
+	}
+	groupVersion := registeredGroupVersions[0]
+	*groupMeta = latest.GroupMeta{
+		GroupVersion: groupVersion,
+		Codec:        runtime.CodecFor(api.Scheme, groupVersion.String()),
+	}
+
+	worstToBestGroupVersions := []unversioned.GroupVersion{}
+	for i := len(registeredGroupVersions) - 1; i >= 0; i-- {
+		worstToBestGroupVersions = append(worstToBestGroupVersions, registeredGroupVersions[i])
+	}
+	groupMeta.GroupVersions = registeredGroupVersions
+
+	groupMeta.SelfLinker = runtime.SelfLinker(accessor)
+
+	// the list of kinds that are scoped at the root of the api hierarchy
+	// if a kind is not enumerated here, it is assumed to have a namespace scope
+	rootScoped := sets.NewString()
+
+	ignoredKinds := sets.NewString()
+
+	groupMeta.RESTMapper = api.NewDefaultRESTMapper(worstToBestGroupVersions, interfacesFor, importPrefix, ignoredKinds, rootScoped)
+	api.RegisterRESTMapper(groupMeta.RESTMapper)
+	groupMeta.InterfacesFor = interfacesFor
+}
+
+// InterfacesFor returns the default Codec and ResourceVersioner for a given version
+// string, or an error if the version is not known.
+func interfacesFor(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
+	switch version {
+	case v1.SchemeGroupVersion:
+		return &meta.VersionInterfaces{
+			Codec:            v1.Codec,
+			ObjectConvertor:  api.Scheme,
+			MetadataAccessor: accessor,
+		}, nil
+	default:
+		g, _ := latest.Group("testgroup")
+		return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, g.GroupVersions)
+	}
+}

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/register.go

@@ -0,0 +1,43 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package testgroup
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+)
+
+var SchemeGroupVersion = unversioned.GroupVersion{Group: "testgroup", Version: ""}
+
+func init() {
+	// Register the API.
+	addKnownTypes()
+}
+
+// Adds the list of known types to api.Scheme.
+func addKnownTypes() {
+	api.Scheme.AddKnownTypes(SchemeGroupVersion,
+		&TestType{},
+		&TestTypeList{},
+	)
+
+	api.Scheme.AddKnownTypes(SchemeGroupVersion,
+		&unversioned.ListOptions{})
+}
+
+func (*TestType) IsAnAPIObject()     {}
+func (*TestTypeList) IsAnAPIObject() {}

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/types.generated.go

@@ -0,0 +1,791 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+// ************************************************************
+// DO NOT EDIT.
+// THIS FILE IS AUTO-GENERATED BY codecgen.
+// ************************************************************
+
+package testgroup
+
+import (
+	"errors"
+	"fmt"
+	codec1978 "github.com/ugorji/go/codec"
+	pkg2_api "k8s.io/kubernetes/pkg/api"
+	pkg1_unversioned "k8s.io/kubernetes/pkg/api/unversioned"
+	pkg3_types "k8s.io/kubernetes/pkg/types"
+	"reflect"
+	"runtime"
+	time "time"
+)
+
+const (
+	// ----- content types ----
+	codecSelferC_UTF81234 = 1
+	codecSelferC_RAW1234  = 0
+	// ----- value types used ----
+	codecSelferValueTypeArray1234 = 10
+	codecSelferValueTypeMap1234   = 9
+	// ----- containerStateValues ----
+	codecSelfer_containerMapKey1234    = 2
+	codecSelfer_containerMapValue1234  = 3
+	codecSelfer_containerMapEnd1234    = 4
+	codecSelfer_containerArrayElem1234 = 6
+	codecSelfer_containerArrayEnd1234  = 7
+)
+
+var (
+	codecSelferBitsize1234                         = uint8(reflect.TypeOf(uint(0)).Bits())
+	codecSelferOnlyMapOrArrayEncodeToStructErr1234 = errors.New(`only encoded map or array can be decoded into a struct`)
+)
+
+type codecSelfer1234 struct{}
+
+func init() {
+	if codec1978.GenVersion != 5 {
+		_, file, _, _ := runtime.Caller(0)
+		err := fmt.Errorf("codecgen version mismatch: current: %v, need %v. Re-generate file: %v",
+			5, codec1978.GenVersion, file)
+		panic(err)
+	}
+	if false { // reference the types, but skip this branch at build/run time
+		var v0 pkg2_api.ObjectMeta
+		var v1 pkg1_unversioned.TypeMeta
+		var v2 pkg3_types.UID
+		var v3 time.Time
+		_, _, _, _ = v0, v1, v2, v3
+	}
+}
+
+func (x *TestType) CodecEncodeSelf(e *codec1978.Encoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperEncoder(e)
+	_, _, _ = h, z, r
+	if x == nil {
+		r.EncodeNil()
+	} else {
+		yym1 := z.EncBinary()
+		_ = yym1
+		if false {
+		} else if z.HasExtensions() && z.EncExt(x) {
+		} else {
+			yysep2 := !z.EncBinary()
+			yy2arr2 := z.EncBasicHandle().StructToArray
+			var yyq2 [3]bool
+			_, _, _ = yysep2, yyq2, yy2arr2
+			const yyr2 bool = false
+			yyq2[0] = x.Kind != ""
+			yyq2[1] = x.APIVersion != ""
+			yyq2[2] = true
+			var yynn2 int
+			if yyr2 || yy2arr2 {
+				r.EncodeArrayStart(3)
+			} else {
+				yynn2 = 0
+				for _, b := range yyq2 {
+					if b {
+						yynn2++
+					}
+				}
+				r.EncodeMapStart(yynn2)
+				yynn2 = 0
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq2[0] {
+					yym4 := z.EncBinary()
+					_ = yym4
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq2[0] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("kind"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym5 := z.EncBinary()
+					_ = yym5
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				}
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq2[1] {
+					yym7 := z.EncBinary()
+					_ = yym7
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq2[1] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("apiVersion"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym8 := z.EncBinary()
+					_ = yym8
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				}
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq2[2] {
+					yy10 := &x.ObjectMeta
+					yy10.CodecEncodeSelf(e)
+				} else {
+					r.EncodeNil()
+				}
+			} else {
+				if yyq2[2] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("metadata"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yy11 := &x.ObjectMeta
+					yy11.CodecEncodeSelf(e)
+				}
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				z.EncSendContainerState(codecSelfer_containerMapEnd1234)
+			}
+		}
+	}
+}
+
+func (x *TestType) CodecDecodeSelf(d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	yym12 := z.DecBinary()
+	_ = yym12
+	if false {
+	} else if z.HasExtensions() && z.DecExt(x) {
+	} else {
+		yyct13 := r.ContainerType()
+		if yyct13 == codecSelferValueTypeMap1234 {
+			yyl13 := r.ReadMapStart()
+			if yyl13 == 0 {
+				z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+			} else {
+				x.codecDecodeSelfFromMap(yyl13, d)
+			}
+		} else if yyct13 == codecSelferValueTypeArray1234 {
+			yyl13 := r.ReadArrayStart()
+			if yyl13 == 0 {
+				z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				x.codecDecodeSelfFromArray(yyl13, d)
+			}
+		} else {
+			panic(codecSelferOnlyMapOrArrayEncodeToStructErr1234)
+		}
+	}
+}
+
+func (x *TestType) codecDecodeSelfFromMap(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yys14Slc = z.DecScratchBuffer() // default slice to decode into
+	_ = yys14Slc
+	var yyhl14 bool = l >= 0
+	for yyj14 := 0; ; yyj14++ {
+		if yyhl14 {
+			if yyj14 >= l {
+				break
+			}
+		} else {
+			if r.CheckBreak() {
+				break
+			}
+		}
+		z.DecSendContainerState(codecSelfer_containerMapKey1234)
+		yys14Slc = r.DecodeBytes(yys14Slc, true, true)
+		yys14 := string(yys14Slc)
+		z.DecSendContainerState(codecSelfer_containerMapValue1234)
+		switch yys14 {
+		case "kind":
+			if r.TryDecodeAsNil() {
+				x.Kind = ""
+			} else {
+				x.Kind = string(r.DecodeString())
+			}
+		case "apiVersion":
+			if r.TryDecodeAsNil() {
+				x.APIVersion = ""
+			} else {
+				x.APIVersion = string(r.DecodeString())
+			}
+		case "metadata":
+			if r.TryDecodeAsNil() {
+				x.ObjectMeta = pkg2_api.ObjectMeta{}
+			} else {
+				yyv17 := &x.ObjectMeta
+				yyv17.CodecDecodeSelf(d)
+			}
+		default:
+			z.DecStructFieldNotFound(-1, yys14)
+		} // end switch yys14
+	} // end for yyj14
+	z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+}
+
+func (x *TestType) codecDecodeSelfFromArray(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yyj18 int
+	var yyb18 bool
+	var yyhl18 bool = l >= 0
+	yyj18++
+	if yyhl18 {
+		yyb18 = yyj18 > l
+	} else {
+		yyb18 = r.CheckBreak()
+	}
+	if yyb18 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.Kind = ""
+	} else {
+		x.Kind = string(r.DecodeString())
+	}
+	yyj18++
+	if yyhl18 {
+		yyb18 = yyj18 > l
+	} else {
+		yyb18 = r.CheckBreak()
+	}
+	if yyb18 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.APIVersion = ""
+	} else {
+		x.APIVersion = string(r.DecodeString())
+	}
+	yyj18++
+	if yyhl18 {
+		yyb18 = yyj18 > l
+	} else {
+		yyb18 = r.CheckBreak()
+	}
+	if yyb18 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.ObjectMeta = pkg2_api.ObjectMeta{}
+	} else {
+		yyv21 := &x.ObjectMeta
+		yyv21.CodecDecodeSelf(d)
+	}
+	for {
+		yyj18++
+		if yyhl18 {
+			yyb18 = yyj18 > l
+		} else {
+			yyb18 = r.CheckBreak()
+		}
+		if yyb18 {
+			break
+		}
+		z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+		z.DecStructFieldNotFound(yyj18-1, "")
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+}
+
+func (x *TestTypeList) CodecEncodeSelf(e *codec1978.Encoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperEncoder(e)
+	_, _, _ = h, z, r
+	if x == nil {
+		r.EncodeNil()
+	} else {
+		yym22 := z.EncBinary()
+		_ = yym22
+		if false {
+		} else if z.HasExtensions() && z.EncExt(x) {
+		} else {
+			yysep23 := !z.EncBinary()
+			yy2arr23 := z.EncBasicHandle().StructToArray
+			var yyq23 [4]bool
+			_, _, _ = yysep23, yyq23, yy2arr23
+			const yyr23 bool = false
+			yyq23[0] = x.Kind != ""
+			yyq23[1] = x.APIVersion != ""
+			yyq23[2] = true
+			var yynn23 int
+			if yyr23 || yy2arr23 {
+				r.EncodeArrayStart(4)
+			} else {
+				yynn23 = 1
+				for _, b := range yyq23 {
+					if b {
+						yynn23++
+					}
+				}
+				r.EncodeMapStart(yynn23)
+				yynn23 = 0
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq23[0] {
+					yym25 := z.EncBinary()
+					_ = yym25
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq23[0] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("kind"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym26 := z.EncBinary()
+					_ = yym26
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq23[1] {
+					yym28 := z.EncBinary()
+					_ = yym28
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq23[1] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("apiVersion"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym29 := z.EncBinary()
+					_ = yym29
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq23[2] {
+					yy31 := &x.ListMeta
+					yym32 := z.EncBinary()
+					_ = yym32
+					if false {
+					} else if z.HasExtensions() && z.EncExt(yy31) {
+					} else {
+						z.EncFallback(yy31)
+					}
+				} else {
+					r.EncodeNil()
+				}
+			} else {
+				if yyq23[2] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("metadata"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yy33 := &x.ListMeta
+					yym34 := z.EncBinary()
+					_ = yym34
+					if false {
+					} else if z.HasExtensions() && z.EncExt(yy33) {
+					} else {
+						z.EncFallback(yy33)
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if x.Items == nil {
+					r.EncodeNil()
+				} else {
+					yym36 := z.EncBinary()
+					_ = yym36
+					if false {
+					} else {
+						h.encSliceTestType(([]TestType)(x.Items), e)
+					}
+				}
+			} else {
+				z.EncSendContainerState(codecSelfer_containerMapKey1234)
+				r.EncodeString(codecSelferC_UTF81234, string("items"))
+				z.EncSendContainerState(codecSelfer_containerMapValue1234)
+				if x.Items == nil {
+					r.EncodeNil()
+				} else {
+					yym37 := z.EncBinary()
+					_ = yym37
+					if false {
+					} else {
+						h.encSliceTestType(([]TestType)(x.Items), e)
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				z.EncSendContainerState(codecSelfer_containerMapEnd1234)
+			}
+		}
+	}
+}
+
+func (x *TestTypeList) CodecDecodeSelf(d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	yym38 := z.DecBinary()
+	_ = yym38
+	if false {
+	} else if z.HasExtensions() && z.DecExt(x) {
+	} else {
+		yyct39 := r.ContainerType()
+		if yyct39 == codecSelferValueTypeMap1234 {
+			yyl39 := r.ReadMapStart()
+			if yyl39 == 0 {
+				z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+			} else {
+				x.codecDecodeSelfFromMap(yyl39, d)
+			}
+		} else if yyct39 == codecSelferValueTypeArray1234 {
+			yyl39 := r.ReadArrayStart()
+			if yyl39 == 0 {
+				z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				x.codecDecodeSelfFromArray(yyl39, d)
+			}
+		} else {
+			panic(codecSelferOnlyMapOrArrayEncodeToStructErr1234)
+		}
+	}
+}
+
+func (x *TestTypeList) codecDecodeSelfFromMap(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yys40Slc = z.DecScratchBuffer() // default slice to decode into
+	_ = yys40Slc
+	var yyhl40 bool = l >= 0
+	for yyj40 := 0; ; yyj40++ {
+		if yyhl40 {
+			if yyj40 >= l {
+				break
+			}
+		} else {
+			if r.CheckBreak() {
+				break
+			}
+		}
+		z.DecSendContainerState(codecSelfer_containerMapKey1234)
+		yys40Slc = r.DecodeBytes(yys40Slc, true, true)
+		yys40 := string(yys40Slc)
+		z.DecSendContainerState(codecSelfer_containerMapValue1234)
+		switch yys40 {
+		case "kind":
+			if r.TryDecodeAsNil() {
+				x.Kind = ""
+			} else {
+				x.Kind = string(r.DecodeString())
+			}
+		case "apiVersion":
+			if r.TryDecodeAsNil() {
+				x.APIVersion = ""
+			} else {
+				x.APIVersion = string(r.DecodeString())
+			}
+		case "metadata":
+			if r.TryDecodeAsNil() {
+				x.ListMeta = pkg1_unversioned.ListMeta{}
+			} else {
+				yyv43 := &x.ListMeta
+				yym44 := z.DecBinary()
+				_ = yym44
+				if false {
+				} else if z.HasExtensions() && z.DecExt(yyv43) {
+				} else {
+					z.DecFallback(yyv43, false)
+				}
+			}
+		case "items":
+			if r.TryDecodeAsNil() {
+				x.Items = nil
+			} else {
+				yyv45 := &x.Items
+				yym46 := z.DecBinary()
+				_ = yym46
+				if false {
+				} else {
+					h.decSliceTestType((*[]TestType)(yyv45), d)
+				}
+			}
+		default:
+			z.DecStructFieldNotFound(-1, yys40)
+		} // end switch yys40
+	} // end for yyj40
+	z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+}
+
+func (x *TestTypeList) codecDecodeSelfFromArray(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yyj47 int
+	var yyb47 bool
+	var yyhl47 bool = l >= 0
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.Kind = ""
+	} else {
+		x.Kind = string(r.DecodeString())
+	}
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.APIVersion = ""
+	} else {
+		x.APIVersion = string(r.DecodeString())
+	}
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.ListMeta = pkg1_unversioned.ListMeta{}
+	} else {
+		yyv50 := &x.ListMeta
+		yym51 := z.DecBinary()
+		_ = yym51
+		if false {
+		} else if z.HasExtensions() && z.DecExt(yyv50) {
+		} else {
+			z.DecFallback(yyv50, false)
+		}
+	}
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.Items = nil
+	} else {
+		yyv52 := &x.Items
+		yym53 := z.DecBinary()
+		_ = yym53
+		if false {
+		} else {
+			h.decSliceTestType((*[]TestType)(yyv52), d)
+		}
+	}
+	for {
+		yyj47++
+		if yyhl47 {
+			yyb47 = yyj47 > l
+		} else {
+			yyb47 = r.CheckBreak()
+		}
+		if yyb47 {
+			break
+		}
+		z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+		z.DecStructFieldNotFound(yyj47-1, "")
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+}
+
+func (x codecSelfer1234) encSliceTestType(v []TestType, e *codec1978.Encoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperEncoder(e)
+	_, _, _ = h, z, r
+	r.EncodeArrayStart(len(v))
+	for _, yyv54 := range v {
+		z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+		yy55 := &yyv54
+		yy55.CodecEncodeSelf(e)
+	}
+	z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
+}
+
+func (x codecSelfer1234) decSliceTestType(v *[]TestType, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+
+	yyv56 := *v
+	yyh56, yyl56 := z.DecSliceHelperStart()
+	var yyc56 bool
+	if yyl56 == 0 {
+		if yyv56 == nil {
+			yyv56 = []TestType{}
+			yyc56 = true
+		} else if len(yyv56) != 0 {
+			yyv56 = yyv56[:0]
+			yyc56 = true
+		}
+	} else if yyl56 > 0 {
+		var yyrr56, yyrl56 int
+		var yyrt56 bool
+		if yyl56 > cap(yyv56) {
+
+			yyrg56 := len(yyv56) > 0
+			yyv256 := yyv56
+			yyrl56, yyrt56 = z.DecInferLen(yyl56, z.DecBasicHandle().MaxInitLen, 192)
+			if yyrt56 {
+				if yyrl56 <= cap(yyv56) {
+					yyv56 = yyv56[:yyrl56]
+				} else {
+					yyv56 = make([]TestType, yyrl56)
+				}
+			} else {
+				yyv56 = make([]TestType, yyrl56)
+			}
+			yyc56 = true
+			yyrr56 = len(yyv56)
+			if yyrg56 {
+				copy(yyv56, yyv256)
+			}
+		} else if yyl56 != len(yyv56) {
+			yyv56 = yyv56[:yyl56]
+			yyc56 = true
+		}
+		yyj56 := 0
+		for ; yyj56 < yyrr56; yyj56++ {
+			yyh56.ElemContainerState(yyj56)
+			if r.TryDecodeAsNil() {
+				yyv56[yyj56] = TestType{}
+			} else {
+				yyv57 := &yyv56[yyj56]
+				yyv57.CodecDecodeSelf(d)
+			}
+
+		}
+		if yyrt56 {
+			for ; yyj56 < yyl56; yyj56++ {
+				yyv56 = append(yyv56, TestType{})
+				yyh56.ElemContainerState(yyj56)
+				if r.TryDecodeAsNil() {
+					yyv56[yyj56] = TestType{}
+				} else {
+					yyv58 := &yyv56[yyj56]
+					yyv58.CodecDecodeSelf(d)
+				}
+
+			}
+		}
+
+	} else {
+		yyj56 := 0
+		for ; !r.CheckBreak(); yyj56++ {
+
+			if yyj56 >= len(yyv56) {
+				yyv56 = append(yyv56, TestType{}) // var yyz56 TestType
+				yyc56 = true
+			}
+			yyh56.ElemContainerState(yyj56)
+			if yyj56 < len(yyv56) {
+				if r.TryDecodeAsNil() {
+					yyv56[yyj56] = TestType{}
+				} else {
+					yyv59 := &yyv56[yyj56]
+					yyv59.CodecDecodeSelf(d)
+				}
+
+			} else {
+				z.DecSwallow()
+			}
+
+		}
+		if yyj56 < len(yyv56) {
+			yyv56 = yyv56[:yyj56]
+			yyc56 = true
+		} else if yyj56 == 0 && yyv56 == nil {
+			yyv56 = []TestType{}
+			yyc56 = true
+		}
+	}
+	yyh56.End()
+	if yyc56 {
+		*v = yyv56
+	}
+}

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/types.go

@@ -0,0 +1,35 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package testgroup
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+)
+
+// +genclient=true
+type TestType struct {
+	unversioned.TypeMeta `json:",inline"`
+	api.ObjectMeta       `json:"metadata,omitempty"`
+}
+
+type TestTypeList struct {
+	unversioned.TypeMeta `json:",inline"`
+	unversioned.ListMeta `json:"metadata,omitempty"`
+
+	Items []TestType `json:"items"`
+}

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/v1/register.go

@@ -0,0 +1,46 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package v1
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/runtime"
+)
+
+var SchemeGroupVersion = unversioned.GroupVersion{Group: "testgroup", Version: "v1"}
+
+var Codec = runtime.CodecFor(api.Scheme, SchemeGroupVersion.String())
+
+func init() {
+	// Register the API.
+	addKnownTypes()
+}
+
+// Adds the list of known types to api.Scheme.
+func addKnownTypes() {
+	api.Scheme.AddKnownTypes(SchemeGroupVersion,
+		&TestType{},
+		&TestTypeList{},
+	)
+
+	api.Scheme.AddKnownTypes(SchemeGroupVersion,
+		&unversioned.ListOptions{})
+}
+
+func (*TestType) IsAnAPIObject()     {}
+func (*TestTypeList) IsAnAPIObject() {}

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/v1/types.generated.go

@@ -0,0 +1,791 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+// ************************************************************
+// DO NOT EDIT.
+// THIS FILE IS AUTO-GENERATED BY codecgen.
+// ************************************************************
+
+package v1
+
+import (
+	"errors"
+	"fmt"
+	codec1978 "github.com/ugorji/go/codec"
+	pkg2_api "k8s.io/kubernetes/pkg/api"
+	pkg1_unversioned "k8s.io/kubernetes/pkg/api/unversioned"
+	pkg3_types "k8s.io/kubernetes/pkg/types"
+	"reflect"
+	"runtime"
+	time "time"
+)
+
+const (
+	// ----- content types ----
+	codecSelferC_UTF81234 = 1
+	codecSelferC_RAW1234  = 0
+	// ----- value types used ----
+	codecSelferValueTypeArray1234 = 10
+	codecSelferValueTypeMap1234   = 9
+	// ----- containerStateValues ----
+	codecSelfer_containerMapKey1234    = 2
+	codecSelfer_containerMapValue1234  = 3
+	codecSelfer_containerMapEnd1234    = 4
+	codecSelfer_containerArrayElem1234 = 6
+	codecSelfer_containerArrayEnd1234  = 7
+)
+
+var (
+	codecSelferBitsize1234                         = uint8(reflect.TypeOf(uint(0)).Bits())
+	codecSelferOnlyMapOrArrayEncodeToStructErr1234 = errors.New(`only encoded map or array can be decoded into a struct`)
+)
+
+type codecSelfer1234 struct{}
+
+func init() {
+	if codec1978.GenVersion != 5 {
+		_, file, _, _ := runtime.Caller(0)
+		err := fmt.Errorf("codecgen version mismatch: current: %v, need %v. Re-generate file: %v",
+			5, codec1978.GenVersion, file)
+		panic(err)
+	}
+	if false { // reference the types, but skip this branch at build/run time
+		var v0 pkg2_api.ObjectMeta
+		var v1 pkg1_unversioned.TypeMeta
+		var v2 pkg3_types.UID
+		var v3 time.Time
+		_, _, _, _ = v0, v1, v2, v3
+	}
+}
+
+func (x *TestType) CodecEncodeSelf(e *codec1978.Encoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperEncoder(e)
+	_, _, _ = h, z, r
+	if x == nil {
+		r.EncodeNil()
+	} else {
+		yym1 := z.EncBinary()
+		_ = yym1
+		if false {
+		} else if z.HasExtensions() && z.EncExt(x) {
+		} else {
+			yysep2 := !z.EncBinary()
+			yy2arr2 := z.EncBasicHandle().StructToArray
+			var yyq2 [3]bool
+			_, _, _ = yysep2, yyq2, yy2arr2
+			const yyr2 bool = false
+			yyq2[0] = x.Kind != ""
+			yyq2[1] = x.APIVersion != ""
+			yyq2[2] = true
+			var yynn2 int
+			if yyr2 || yy2arr2 {
+				r.EncodeArrayStart(3)
+			} else {
+				yynn2 = 0
+				for _, b := range yyq2 {
+					if b {
+						yynn2++
+					}
+				}
+				r.EncodeMapStart(yynn2)
+				yynn2 = 0
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq2[0] {
+					yym4 := z.EncBinary()
+					_ = yym4
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq2[0] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("kind"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym5 := z.EncBinary()
+					_ = yym5
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				}
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq2[1] {
+					yym7 := z.EncBinary()
+					_ = yym7
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq2[1] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("apiVersion"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym8 := z.EncBinary()
+					_ = yym8
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				}
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq2[2] {
+					yy10 := &x.ObjectMeta
+					yy10.CodecEncodeSelf(e)
+				} else {
+					r.EncodeNil()
+				}
+			} else {
+				if yyq2[2] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("metadata"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yy11 := &x.ObjectMeta
+					yy11.CodecEncodeSelf(e)
+				}
+			}
+			if yyr2 || yy2arr2 {
+				z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				z.EncSendContainerState(codecSelfer_containerMapEnd1234)
+			}
+		}
+	}
+}
+
+func (x *TestType) CodecDecodeSelf(d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	yym12 := z.DecBinary()
+	_ = yym12
+	if false {
+	} else if z.HasExtensions() && z.DecExt(x) {
+	} else {
+		yyct13 := r.ContainerType()
+		if yyct13 == codecSelferValueTypeMap1234 {
+			yyl13 := r.ReadMapStart()
+			if yyl13 == 0 {
+				z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+			} else {
+				x.codecDecodeSelfFromMap(yyl13, d)
+			}
+		} else if yyct13 == codecSelferValueTypeArray1234 {
+			yyl13 := r.ReadArrayStart()
+			if yyl13 == 0 {
+				z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				x.codecDecodeSelfFromArray(yyl13, d)
+			}
+		} else {
+			panic(codecSelferOnlyMapOrArrayEncodeToStructErr1234)
+		}
+	}
+}
+
+func (x *TestType) codecDecodeSelfFromMap(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yys14Slc = z.DecScratchBuffer() // default slice to decode into
+	_ = yys14Slc
+	var yyhl14 bool = l >= 0
+	for yyj14 := 0; ; yyj14++ {
+		if yyhl14 {
+			if yyj14 >= l {
+				break
+			}
+		} else {
+			if r.CheckBreak() {
+				break
+			}
+		}
+		z.DecSendContainerState(codecSelfer_containerMapKey1234)
+		yys14Slc = r.DecodeBytes(yys14Slc, true, true)
+		yys14 := string(yys14Slc)
+		z.DecSendContainerState(codecSelfer_containerMapValue1234)
+		switch yys14 {
+		case "kind":
+			if r.TryDecodeAsNil() {
+				x.Kind = ""
+			} else {
+				x.Kind = string(r.DecodeString())
+			}
+		case "apiVersion":
+			if r.TryDecodeAsNil() {
+				x.APIVersion = ""
+			} else {
+				x.APIVersion = string(r.DecodeString())
+			}
+		case "metadata":
+			if r.TryDecodeAsNil() {
+				x.ObjectMeta = pkg2_api.ObjectMeta{}
+			} else {
+				yyv17 := &x.ObjectMeta
+				yyv17.CodecDecodeSelf(d)
+			}
+		default:
+			z.DecStructFieldNotFound(-1, yys14)
+		} // end switch yys14
+	} // end for yyj14
+	z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+}
+
+func (x *TestType) codecDecodeSelfFromArray(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yyj18 int
+	var yyb18 bool
+	var yyhl18 bool = l >= 0
+	yyj18++
+	if yyhl18 {
+		yyb18 = yyj18 > l
+	} else {
+		yyb18 = r.CheckBreak()
+	}
+	if yyb18 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.Kind = ""
+	} else {
+		x.Kind = string(r.DecodeString())
+	}
+	yyj18++
+	if yyhl18 {
+		yyb18 = yyj18 > l
+	} else {
+		yyb18 = r.CheckBreak()
+	}
+	if yyb18 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.APIVersion = ""
+	} else {
+		x.APIVersion = string(r.DecodeString())
+	}
+	yyj18++
+	if yyhl18 {
+		yyb18 = yyj18 > l
+	} else {
+		yyb18 = r.CheckBreak()
+	}
+	if yyb18 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.ObjectMeta = pkg2_api.ObjectMeta{}
+	} else {
+		yyv21 := &x.ObjectMeta
+		yyv21.CodecDecodeSelf(d)
+	}
+	for {
+		yyj18++
+		if yyhl18 {
+			yyb18 = yyj18 > l
+		} else {
+			yyb18 = r.CheckBreak()
+		}
+		if yyb18 {
+			break
+		}
+		z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+		z.DecStructFieldNotFound(yyj18-1, "")
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+}
+
+func (x *TestTypeList) CodecEncodeSelf(e *codec1978.Encoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperEncoder(e)
+	_, _, _ = h, z, r
+	if x == nil {
+		r.EncodeNil()
+	} else {
+		yym22 := z.EncBinary()
+		_ = yym22
+		if false {
+		} else if z.HasExtensions() && z.EncExt(x) {
+		} else {
+			yysep23 := !z.EncBinary()
+			yy2arr23 := z.EncBasicHandle().StructToArray
+			var yyq23 [4]bool
+			_, _, _ = yysep23, yyq23, yy2arr23
+			const yyr23 bool = false
+			yyq23[0] = x.Kind != ""
+			yyq23[1] = x.APIVersion != ""
+			yyq23[2] = true
+			var yynn23 int
+			if yyr23 || yy2arr23 {
+				r.EncodeArrayStart(4)
+			} else {
+				yynn23 = 1
+				for _, b := range yyq23 {
+					if b {
+						yynn23++
+					}
+				}
+				r.EncodeMapStart(yynn23)
+				yynn23 = 0
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq23[0] {
+					yym25 := z.EncBinary()
+					_ = yym25
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq23[0] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("kind"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym26 := z.EncBinary()
+					_ = yym26
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.Kind))
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq23[1] {
+					yym28 := z.EncBinary()
+					_ = yym28
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				} else {
+					r.EncodeString(codecSelferC_UTF81234, "")
+				}
+			} else {
+				if yyq23[1] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("apiVersion"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yym29 := z.EncBinary()
+					_ = yym29
+					if false {
+					} else {
+						r.EncodeString(codecSelferC_UTF81234, string(x.APIVersion))
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if yyq23[2] {
+					yy31 := &x.ListMeta
+					yym32 := z.EncBinary()
+					_ = yym32
+					if false {
+					} else if z.HasExtensions() && z.EncExt(yy31) {
+					} else {
+						z.EncFallback(yy31)
+					}
+				} else {
+					r.EncodeNil()
+				}
+			} else {
+				if yyq23[2] {
+					z.EncSendContainerState(codecSelfer_containerMapKey1234)
+					r.EncodeString(codecSelferC_UTF81234, string("metadata"))
+					z.EncSendContainerState(codecSelfer_containerMapValue1234)
+					yy33 := &x.ListMeta
+					yym34 := z.EncBinary()
+					_ = yym34
+					if false {
+					} else if z.HasExtensions() && z.EncExt(yy33) {
+					} else {
+						z.EncFallback(yy33)
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+				if x.Items == nil {
+					r.EncodeNil()
+				} else {
+					yym36 := z.EncBinary()
+					_ = yym36
+					if false {
+					} else {
+						h.encSliceTestType(([]TestType)(x.Items), e)
+					}
+				}
+			} else {
+				z.EncSendContainerState(codecSelfer_containerMapKey1234)
+				r.EncodeString(codecSelferC_UTF81234, string("items"))
+				z.EncSendContainerState(codecSelfer_containerMapValue1234)
+				if x.Items == nil {
+					r.EncodeNil()
+				} else {
+					yym37 := z.EncBinary()
+					_ = yym37
+					if false {
+					} else {
+						h.encSliceTestType(([]TestType)(x.Items), e)
+					}
+				}
+			}
+			if yyr23 || yy2arr23 {
+				z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				z.EncSendContainerState(codecSelfer_containerMapEnd1234)
+			}
+		}
+	}
+}
+
+func (x *TestTypeList) CodecDecodeSelf(d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	yym38 := z.DecBinary()
+	_ = yym38
+	if false {
+	} else if z.HasExtensions() && z.DecExt(x) {
+	} else {
+		yyct39 := r.ContainerType()
+		if yyct39 == codecSelferValueTypeMap1234 {
+			yyl39 := r.ReadMapStart()
+			if yyl39 == 0 {
+				z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+			} else {
+				x.codecDecodeSelfFromMap(yyl39, d)
+			}
+		} else if yyct39 == codecSelferValueTypeArray1234 {
+			yyl39 := r.ReadArrayStart()
+			if yyl39 == 0 {
+				z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+			} else {
+				x.codecDecodeSelfFromArray(yyl39, d)
+			}
+		} else {
+			panic(codecSelferOnlyMapOrArrayEncodeToStructErr1234)
+		}
+	}
+}
+
+func (x *TestTypeList) codecDecodeSelfFromMap(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yys40Slc = z.DecScratchBuffer() // default slice to decode into
+	_ = yys40Slc
+	var yyhl40 bool = l >= 0
+	for yyj40 := 0; ; yyj40++ {
+		if yyhl40 {
+			if yyj40 >= l {
+				break
+			}
+		} else {
+			if r.CheckBreak() {
+				break
+			}
+		}
+		z.DecSendContainerState(codecSelfer_containerMapKey1234)
+		yys40Slc = r.DecodeBytes(yys40Slc, true, true)
+		yys40 := string(yys40Slc)
+		z.DecSendContainerState(codecSelfer_containerMapValue1234)
+		switch yys40 {
+		case "kind":
+			if r.TryDecodeAsNil() {
+				x.Kind = ""
+			} else {
+				x.Kind = string(r.DecodeString())
+			}
+		case "apiVersion":
+			if r.TryDecodeAsNil() {
+				x.APIVersion = ""
+			} else {
+				x.APIVersion = string(r.DecodeString())
+			}
+		case "metadata":
+			if r.TryDecodeAsNil() {
+				x.ListMeta = pkg1_unversioned.ListMeta{}
+			} else {
+				yyv43 := &x.ListMeta
+				yym44 := z.DecBinary()
+				_ = yym44
+				if false {
+				} else if z.HasExtensions() && z.DecExt(yyv43) {
+				} else {
+					z.DecFallback(yyv43, false)
+				}
+			}
+		case "items":
+			if r.TryDecodeAsNil() {
+				x.Items = nil
+			} else {
+				yyv45 := &x.Items
+				yym46 := z.DecBinary()
+				_ = yym46
+				if false {
+				} else {
+					h.decSliceTestType((*[]TestType)(yyv45), d)
+				}
+			}
+		default:
+			z.DecStructFieldNotFound(-1, yys40)
+		} // end switch yys40
+	} // end for yyj40
+	z.DecSendContainerState(codecSelfer_containerMapEnd1234)
+}
+
+func (x *TestTypeList) codecDecodeSelfFromArray(l int, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+	var yyj47 int
+	var yyb47 bool
+	var yyhl47 bool = l >= 0
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.Kind = ""
+	} else {
+		x.Kind = string(r.DecodeString())
+	}
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.APIVersion = ""
+	} else {
+		x.APIVersion = string(r.DecodeString())
+	}
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.ListMeta = pkg1_unversioned.ListMeta{}
+	} else {
+		yyv50 := &x.ListMeta
+		yym51 := z.DecBinary()
+		_ = yym51
+		if false {
+		} else if z.HasExtensions() && z.DecExt(yyv50) {
+		} else {
+			z.DecFallback(yyv50, false)
+		}
+	}
+	yyj47++
+	if yyhl47 {
+		yyb47 = yyj47 > l
+	} else {
+		yyb47 = r.CheckBreak()
+	}
+	if yyb47 {
+		z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+		return
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+	if r.TryDecodeAsNil() {
+		x.Items = nil
+	} else {
+		yyv52 := &x.Items
+		yym53 := z.DecBinary()
+		_ = yym53
+		if false {
+		} else {
+			h.decSliceTestType((*[]TestType)(yyv52), d)
+		}
+	}
+	for {
+		yyj47++
+		if yyhl47 {
+			yyb47 = yyj47 > l
+		} else {
+			yyb47 = r.CheckBreak()
+		}
+		if yyb47 {
+			break
+		}
+		z.DecSendContainerState(codecSelfer_containerArrayElem1234)
+		z.DecStructFieldNotFound(yyj47-1, "")
+	}
+	z.DecSendContainerState(codecSelfer_containerArrayEnd1234)
+}
+
+func (x codecSelfer1234) encSliceTestType(v []TestType, e *codec1978.Encoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperEncoder(e)
+	_, _, _ = h, z, r
+	r.EncodeArrayStart(len(v))
+	for _, yyv54 := range v {
+		z.EncSendContainerState(codecSelfer_containerArrayElem1234)
+		yy55 := &yyv54
+		yy55.CodecEncodeSelf(e)
+	}
+	z.EncSendContainerState(codecSelfer_containerArrayEnd1234)
+}
+
+func (x codecSelfer1234) decSliceTestType(v *[]TestType, d *codec1978.Decoder) {
+	var h codecSelfer1234
+	z, r := codec1978.GenHelperDecoder(d)
+	_, _, _ = h, z, r
+
+	yyv56 := *v
+	yyh56, yyl56 := z.DecSliceHelperStart()
+	var yyc56 bool
+	if yyl56 == 0 {
+		if yyv56 == nil {
+			yyv56 = []TestType{}
+			yyc56 = true
+		} else if len(yyv56) != 0 {
+			yyv56 = yyv56[:0]
+			yyc56 = true
+		}
+	} else if yyl56 > 0 {
+		var yyrr56, yyrl56 int
+		var yyrt56 bool
+		if yyl56 > cap(yyv56) {
+
+			yyrg56 := len(yyv56) > 0
+			yyv256 := yyv56
+			yyrl56, yyrt56 = z.DecInferLen(yyl56, z.DecBasicHandle().MaxInitLen, 192)
+			if yyrt56 {
+				if yyrl56 <= cap(yyv56) {
+					yyv56 = yyv56[:yyrl56]
+				} else {
+					yyv56 = make([]TestType, yyrl56)
+				}
+			} else {
+				yyv56 = make([]TestType, yyrl56)
+			}
+			yyc56 = true
+			yyrr56 = len(yyv56)
+			if yyrg56 {
+				copy(yyv56, yyv256)
+			}
+		} else if yyl56 != len(yyv56) {
+			yyv56 = yyv56[:yyl56]
+			yyc56 = true
+		}
+		yyj56 := 0
+		for ; yyj56 < yyrr56; yyj56++ {
+			yyh56.ElemContainerState(yyj56)
+			if r.TryDecodeAsNil() {
+				yyv56[yyj56] = TestType{}
+			} else {
+				yyv57 := &yyv56[yyj56]
+				yyv57.CodecDecodeSelf(d)
+			}
+
+		}
+		if yyrt56 {
+			for ; yyj56 < yyl56; yyj56++ {
+				yyv56 = append(yyv56, TestType{})
+				yyh56.ElemContainerState(yyj56)
+				if r.TryDecodeAsNil() {
+					yyv56[yyj56] = TestType{}
+				} else {
+					yyv58 := &yyv56[yyj56]
+					yyv58.CodecDecodeSelf(d)
+				}
+
+			}
+		}
+
+	} else {
+		yyj56 := 0
+		for ; !r.CheckBreak(); yyj56++ {
+
+			if yyj56 >= len(yyv56) {
+				yyv56 = append(yyv56, TestType{}) // var yyz56 TestType
+				yyc56 = true
+			}
+			yyh56.ElemContainerState(yyj56)
+			if yyj56 < len(yyv56) {
+				if r.TryDecodeAsNil() {
+					yyv56[yyj56] = TestType{}
+				} else {
+					yyv59 := &yyv56[yyj56]
+					yyv59.CodecDecodeSelf(d)
+				}
+
+			} else {
+				z.DecSwallow()
+			}
+
+		}
+		if yyj56 < len(yyv56) {
+			yyv56 = yyv56[:yyj56]
+			yyc56 = true
+		} else if yyj56 == 0 && yyv56 == nil {
+			yyv56 = []TestType{}
+			yyc56 = true
+		}
+	}
+	yyh56.End()
+	if yyc56 {
+		*v = yyv56
+	}
+}

cmd/libs/go2idl/client-gen/testdata/apis/testgroup/v1/types.go

@@ -0,0 +1,35 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package v1
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+)
+
+// +genclient=true
+type TestType struct {
+	unversioned.TypeMeta `json:",inline"`
+	api.ObjectMeta       `json:"metadata,omitempty"`
+}
+
+type TestTypeList struct {
+	unversioned.TypeMeta `json:",inline"`
+	unversioned.ListMeta `json:"metadata,omitempty"`
+
+	Items []TestType `json:"items"`
+}

cmd/libs/go2idl/client-gen/testoutput/doc.go

@@ -0,0 +1,18 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+// Package unversioned has the automatically generated clients for unversioned resources.
+package testoutput

cmd/libs/go2idl/client-gen/testoutput/testType.go

@@ -0,0 +1,130 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package testoutput
+
+import (
+	testgroup "k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup"
+	api "k8s.io/kubernetes/pkg/api"
+	unversioned "k8s.io/kubernetes/pkg/api/unversioned"
+	watch "k8s.io/kubernetes/pkg/watch"
+)
+
+// TestTypeNamespacer has methods to work with TestType resources in a namespace
+type TestTypeNamespacer interface {
+	TestTypes(namespace string) TestTypeInterface
+}
+
+// TestTypeInterface has methods to work with TestType resources.
+type TestTypeInterface interface {
+	Create(*testgroup.TestType) (*testgroup.TestType, error)
+	Update(*testgroup.TestType) (*testgroup.TestType, error)
+	Delete(name string, options *api.DeleteOptions) error
+	Get(name string) (*testgroup.TestType, error)
+	List(opts unversioned.ListOptions) (*testgroup.TestTypeList, error)
+	Watch(opts unversioned.ListOptions) (watch.Interface, error)
+}
+
+// testTypes implements TestTypeInterface
+type testTypes struct {
+	client *TestgroupClient
+	ns     string
+}
+
+// newTestTypes returns a TestTypes
+func newTestTypes(c *TestgroupClient, namespace string) *testTypes {
+	return &testTypes{
+		client: c,
+		ns:     namespace,
+	}
+}
+
+// Create takes the representation of a testType and creates it.  Returns the server's representation of the testType, and an error, if there is any.
+func (c *testTypes) Create(testType *testgroup.TestType) (result *testgroup.TestType, err error) {
+	result = &testgroup.TestType{}
+	err = c.client.Post().
+		Namespace(c.ns).
+		Resource("testTypes").
+		Body(testType).
+		Do().
+		Into(result)
+	return
+}
+
+// Update takes the representation of a testType and updates it. Returns the server's representation of the testType, and an error, if there is any.
+func (c *testTypes) Update(testType *testgroup.TestType) (result *testgroup.TestType, err error) {
+	result = &testgroup.TestType{}
+	err = c.client.Put().
+		Namespace(c.ns).
+		Resource("testTypes").
+		Name(testType.Name).
+		Body(testType).
+		Do().
+		Into(result)
+	return
+}
+
+// Delete takes name of the testType and deletes it. Returns an error if one occurs.
+func (c *testTypes) Delete(name string, options *api.DeleteOptions) error {
+	if options == nil {
+		return c.client.Delete().Namespace(c.ns).Resource("testTypes").Name(name).Do().Error()
+	}
+	body, err := api.Scheme.EncodeToVersion(options, c.client.APIVersion().String())
+	if err != nil {
+		return err
+	}
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("testTypes").
+		Name(name).
+		Body(body).
+		Do().
+		Error()
+}
+
+// Get takes name of the testType, and returns the corresponding testType object, and an error if there is any.
+func (c *testTypes) Get(name string) (result *testgroup.TestType, err error) {
+	result = &testgroup.TestType{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("testTypes").
+		Name(name).
+		Do().
+		Into(result)
+	return
+}
+
+// List takes label and field selectors, and returns the list of TestTypes that match those selectors.
+func (c *testTypes) List(opts unversioned.ListOptions) (result *testgroup.TestTypeList, err error) {
+	result = &testgroup.TestTypeList{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("testTypes").
+		VersionedParams(&opts, api.Scheme).
+		Do().
+		Into(result)
+	return
+}
+
+// Watch returns a watch.Interface that watches the requested testTypes.
+func (c *testTypes) Watch(opts unversioned.ListOptions) (watch.Interface, error) {
+	return c.client.Get().
+		Prefix("watch").
+		Namespace(c.ns).
+		Resource("testTypes").
+		VersionedParams(&opts, api.Scheme).
+		Watch()
+}

cmd/libs/go2idl/client-gen/testoutput/testgroup.go

@@ -0,0 +1,90 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package testoutput
+
+import (
+	"fmt"
+	latest "k8s.io/kubernetes/pkg/api/latest"
+	unversioned "k8s.io/kubernetes/pkg/client/unversioned"
+)
+
+type TestgroupInterface interface {
+	TestTypeNamespacer
+}
+
+// TestgroupClient is used to interact with features provided by the Testgroup group.
+type TestgroupClient struct {
+	*unversioned.RESTClient
+}
+
+func (c *TestgroupClient) TestTypes(namespace string) TestTypeInterface {
+	return newTestTypes(c, namespace)
+}
+
+// NewTestgroup creates a new TestgroupClient for the given config.
+func NewTestgroup(c *unversioned.Config) (*TestgroupClient, error) {
+	config := *c
+	if err := setTestgroupDefaults(&config); err != nil {
+		return nil, err
+	}
+	client, err := unversioned.RESTClientFor(&config)
+	if err != nil {
+		return nil, err
+	}
+	return &TestgroupClient{client}, nil
+}
+
+// NewTestgroupOrDie creates a new TestgroupClient for the given config and
+// panics if there is an error in the config.
+func NewTestgroupOrDie(c *unversioned.Config) *TestgroupClient {
+	client, err := NewTestgroup(c)
+	if err != nil {
+		panic(err)
+	}
+	return client
+}
+
+func setTestgroupDefaults(config *unversioned.Config) error {
+	// if testgroup group is not registered, return an error
+	g, err := latest.Group("testgroup")
+	if err != nil {
+		return err
+	}
+	config.Prefix = "/apis"
+	if config.UserAgent == "" {
+		config.UserAgent = unversioned.DefaultKubernetesUserAgent()
+	}
+	// TODO: Unconditionally set the config.Version, until we fix the config.
+	//if config.Version == "" {
+	copyGroupVersion := g.GroupVersion
+	config.GroupVersion = &copyGroupVersion
+	//}
+
+	versionInterfaces, err := g.InterfacesFor(*config.GroupVersion)
+	if err != nil {
+		return fmt.Errorf("Testgroup API version '%s' is not recognized (valid values: %s)",
+			config.GroupVersion, g.GroupVersions)
+	}
+	config.Codec = versionInterfaces.Codec
+	if config.QPS == 0 {
+		config.QPS = 5
+	}
+	if config.Burst == 0 {
+		config.Burst = 10
+	}
+	return nil
+}

cmd/libs/go2idl/client-gen/testoutput/testgroup_test.go

@@ -0,0 +1,216 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package testoutput_test
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+
+	"k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup"
+	_ "k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup/install"
+	. "k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testoutput"
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/latest"
+	"k8s.io/kubernetes/pkg/api/testapi"
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	client "k8s.io/kubernetes/pkg/client/unversioned"
+	"k8s.io/kubernetes/pkg/client/unversioned/testclient/simple"
+	"k8s.io/kubernetes/pkg/labels"
+)
+
+var testHelper testapi.TestGroup
+
+func init() {
+	if _, found := testapi.Groups[testgroup.SchemeGroupVersion.Group]; found {
+		return
+	}
+	testapi.Groups[testgroup.SchemeGroupVersion.Group] = testapi.NewTestGroup(
+		unversioned.GroupVersion{Group: testgroup.SchemeGroupVersion.Group, Version: latest.GroupOrDie(testgroup.SchemeGroupVersion.Group).GroupVersion.Version},
+		testgroup.SchemeGroupVersion)
+	testHelper = testapi.Groups[testgroup.SchemeGroupVersion.Group]
+}
+
+type DecoratedSimpleClient struct {
+	*TestgroupClient
+	simpleClient simple.Client
+}
+
+func (c *DecoratedSimpleClient) Setup(t *testing.T) *DecoratedSimpleClient {
+	c.simpleClient.Setup(t)
+	url := c.simpleClient.ServerURL()
+	c.TestgroupClient = NewTestgroupOrDie(&client.Config{
+		Host: url,
+	})
+	return c
+}
+
+func TestCreateTestTypes(t *testing.T) {
+	ns := api.NamespaceDefault
+	requestTestType := &testgroup.TestType{}
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request: simple.Request{Method: "POST", Path: testHelper.ResourcePath("testtypes", ns, ""), Query: simple.BuildQueryValues(nil), Body: requestTestType},
+			Response: simple.Response{
+				StatusCode: http.StatusOK,
+				Body:       requestTestType,
+			},
+		},
+	}
+	receivedTestType, err := c.Setup(t).TestTypes(ns).Create(requestTestType)
+	c.simpleClient.Validate(t, receivedTestType, err)
+}
+
+func TestUpdateTestType(t *testing.T) {
+	ns := api.NamespaceDefault
+	requestTestType := &testgroup.TestType{
+		ObjectMeta: api.ObjectMeta{
+			Name:            "foo",
+			ResourceVersion: "1",
+			Labels: map[string]string{
+				"foo":  "bar",
+				"name": "baz",
+			},
+		},
+	}
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request:  simple.Request{Method: "PUT", Path: testHelper.ResourcePath("testtypes", ns, "foo"), Query: simple.BuildQueryValues(nil)},
+			Response: simple.Response{StatusCode: http.StatusOK, Body: requestTestType},
+		},
+	}
+	receivedTestType, err := c.Setup(t).TestTypes(ns).Update(requestTestType)
+	c.simpleClient.Validate(t, receivedTestType, err)
+}
+
+func TestDeleteTestType(t *testing.T) {
+	ns := api.NamespaceDefault
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request:  simple.Request{Method: "DELETE", Path: testHelper.ResourcePath("testtypes", ns, "foo"), Query: simple.BuildQueryValues(nil)},
+			Response: simple.Response{StatusCode: http.StatusOK},
+		},
+	}
+	err := c.Setup(t).TestTypes(ns).Delete("foo", nil)
+	c.simpleClient.Validate(t, nil, err)
+}
+
+func TestGetTestType(t *testing.T) {
+	ns := api.NamespaceDefault
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request: simple.Request{Method: "GET", Path: testHelper.ResourcePath("testtypes", ns, "foo"), Query: simple.BuildQueryValues(nil)},
+			Response: simple.Response{
+				StatusCode: http.StatusOK,
+				Body: &testgroup.TestType{
+					ObjectMeta: api.ObjectMeta{
+						Labels: map[string]string{
+							"foo":  "bar",
+							"name": "baz",
+						},
+					},
+				},
+			},
+		},
+	}
+	receivedTestType, err := c.Setup(t).TestTypes(ns).Get("foo")
+	c.simpleClient.Validate(t, receivedTestType, err)
+}
+
+func TestGetTestTypeWithNoName(t *testing.T) {
+	ns := api.NamespaceDefault
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{Error: true},
+	}
+	receivedTestType, err := c.Setup(t).TestTypes(ns).Get("")
+	if (err != nil) && (err.Error() != simple.NameRequiredError) {
+		t.Errorf("Expected error: %v, but got %v", simple.NameRequiredError, err)
+	}
+
+	c.simpleClient.Validate(t, receivedTestType, err)
+}
+
+func TestListEmptyTestTypes(t *testing.T) {
+	ns := api.NamespaceDefault
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request:  simple.Request{Method: "GET", Path: testHelper.ResourcePath("testtypes", ns, ""), Query: simple.BuildQueryValues(nil)},
+			Response: simple.Response{StatusCode: http.StatusOK, Body: &testgroup.TestTypeList{}},
+		},
+	}
+	podList, err := c.Setup(t).TestTypes(ns).List(unversioned.ListOptions{})
+	c.simpleClient.Validate(t, podList, err)
+}
+
+func TestListTestTypes(t *testing.T) {
+	ns := api.NamespaceDefault
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request: simple.Request{Method: "GET", Path: testHelper.ResourcePath("testtypes", ns, ""), Query: simple.BuildQueryValues(nil)},
+			Response: simple.Response{StatusCode: http.StatusOK,
+				Body: &testgroup.TestTypeList{
+					Items: []testgroup.TestType{
+						{
+							ObjectMeta: api.ObjectMeta{
+								Labels: map[string]string{
+									"foo":  "bar",
+									"name": "baz",
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+	receivedTestTypeList, err := c.Setup(t).TestTypes(ns).List(unversioned.ListOptions{})
+	c.simpleClient.Validate(t, receivedTestTypeList, err)
+}
+
+func TestListTestTypesLabels(t *testing.T) {
+	ns := api.NamespaceDefault
+	labelSelectorQueryParamName := unversioned.LabelSelectorQueryParam(testHelper.GroupVersion().String())
+	c := DecoratedSimpleClient{
+		simpleClient: simple.Client{
+			Request: simple.Request{
+				Method: "GET",
+				Path:   testHelper.ResourcePath("testtypes", ns, ""),
+				Query:  simple.BuildQueryValues(url.Values{labelSelectorQueryParamName: []string{"foo=bar,name=baz"}})},
+			Response: simple.Response{
+				StatusCode: http.StatusOK,
+				Body: &testgroup.TestTypeList{
+					Items: []testgroup.TestType{
+						{
+							ObjectMeta: api.ObjectMeta{
+								Labels: map[string]string{
+									"foo":  "bar",
+									"name": "baz",
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+	c.Setup(t)
+	c.simpleClient.QueryValidator[labelSelectorQueryParamName] = simple.ValidateLabels
+	selector := labels.Set{"foo": "bar", "name": "baz"}.AsSelector()
+	options := unversioned.ListOptions{LabelSelector: unversioned.LabelSelector{selector}}
+	receivedTestTypeList, err := c.TestTypes(ns).List(options)
+	c.simpleClient.Validate(t, receivedTestTypeList, err)
+}