diff --git a/vendor/github.com/golang/protobuf/proto/properties.go b/vendor/github.com/golang/protobuf/proto/properties.go
index 79668ff..a4b8c0c 100644
--- a/vendor/github.com/golang/protobuf/proto/properties.go
+++ b/vendor/github.com/golang/protobuf/proto/properties.go
@@ -38,7 +38,6 @@
 import (
 	"fmt"
 	"log"
-	"os"
 	"reflect"
 	"sort"
 	"strconv"
@@ -194,7 +193,7 @@
 	// "bytes,49,opt,name=foo,def=hello!"
 	fields := strings.Split(s, ",") // breaks def=, but handled below.
 	if len(fields) < 2 {
-		fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
+		log.Printf("proto: tag has too few fields: %q", s)
 		return
 	}
 
@@ -214,7 +213,7 @@
 		p.WireType = WireBytes
 		// no numeric converter for non-numeric types
 	default:
-		fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
+		log.Printf("proto: tag has unknown wire type: %q", s)
 		return
 	}
 
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/doc.go b/vendor/github.com/golang/protobuf/protoc-gen-go/doc.go
deleted file mode 100644
index 0d6055d..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/doc.go
+++ /dev/null
@@ -1,51 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-/*
-	A plugin for the Google protocol buffer compiler to generate Go code.
-	Run it by building this program and putting it in your path with the name
-		protoc-gen-go
-	That word 'go' at the end becomes part of the option string set for the
-	protocol compiler, so once the protocol compiler (protoc) is installed
-	you can run
-		protoc --go_out=output_directory input_directory/file.proto
-	to generate Go bindings for the protocol defined by file.proto.
-	With that input, the output will be written to
-		output_directory/file.pb.go
-
-	The generated code is documented in the package comment for
-	the library.
-
-	See the README and documentation for protocol buffers to learn more:
-		https://developers.google.com/protocol-buffers/
-
-*/
-package documentation
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go b/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go
deleted file mode 100644
index 6f4a902..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/generator.go
+++ /dev/null
@@ -1,2806 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-/*
-	The code generator for the plugin for the Google protocol buffer compiler.
-	It generates Go code from the protocol buffer description files read by the
-	main routine.
-*/
-package generator
-
-import (
-	"bufio"
-	"bytes"
-	"compress/gzip"
-	"crypto/sha256"
-	"encoding/hex"
-	"fmt"
-	"go/ast"
-	"go/build"
-	"go/parser"
-	"go/printer"
-	"go/token"
-	"log"
-	"os"
-	"path"
-	"sort"
-	"strconv"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-
-	"github.com/golang/protobuf/proto"
-	"github.com/golang/protobuf/protoc-gen-go/generator/internal/remap"
-
-	"github.com/golang/protobuf/protoc-gen-go/descriptor"
-	plugin "github.com/golang/protobuf/protoc-gen-go/plugin"
-)
-
-// generatedCodeVersion indicates a version of the generated code.
-// It is incremented whenever an incompatibility between the generated code and
-// proto package is introduced; the generated code references
-// a constant, proto.ProtoPackageIsVersionN (where N is generatedCodeVersion).
-const generatedCodeVersion = 3
-
-// A Plugin provides functionality to add to the output during Go code generation,
-// such as to produce RPC stubs.
-type Plugin interface {
-	// Name identifies the plugin.
-	Name() string
-	// Init is called once after data structures are built but before
-	// code generation begins.
-	Init(g *Generator)
-	// Generate produces the code generated by the plugin for this file,
-	// except for the imports, by calling the generator's methods P, In, and Out.
-	Generate(file *FileDescriptor)
-	// GenerateImports produces the import declarations for this file.
-	// It is called after Generate.
-	GenerateImports(file *FileDescriptor)
-}
-
-var plugins []Plugin
-
-// RegisterPlugin installs a (second-order) plugin to be run when the Go output is generated.
-// It is typically called during initialization.
-func RegisterPlugin(p Plugin) {
-	plugins = append(plugins, p)
-}
-
-// A GoImportPath is the import path of a Go package. e.g., "google.golang.org/genproto/protobuf".
-type GoImportPath string
-
-func (p GoImportPath) String() string { return strconv.Quote(string(p)) }
-
-// A GoPackageName is the name of a Go package. e.g., "protobuf".
-type GoPackageName string
-
-// Each type we import as a protocol buffer (other than FileDescriptorProto) needs
-// a pointer to the FileDescriptorProto that represents it.  These types achieve that
-// wrapping by placing each Proto inside a struct with the pointer to its File. The
-// structs have the same names as their contents, with "Proto" removed.
-// FileDescriptor is used to store the things that it points to.
-
-// The file and package name method are common to messages and enums.
-type common struct {
-	file *FileDescriptor // File this object comes from.
-}
-
-// GoImportPath is the import path of the Go package containing the type.
-func (c *common) GoImportPath() GoImportPath {
-	return c.file.importPath
-}
-
-func (c *common) File() *FileDescriptor { return c.file }
-
-func fileIsProto3(file *descriptor.FileDescriptorProto) bool {
-	return file.GetSyntax() == "proto3"
-}
-
-func (c *common) proto3() bool { return fileIsProto3(c.file.FileDescriptorProto) }
-
-// Descriptor represents a protocol buffer message.
-type Descriptor struct {
-	common
-	*descriptor.DescriptorProto
-	parent   *Descriptor            // The containing message, if any.
-	nested   []*Descriptor          // Inner messages, if any.
-	enums    []*EnumDescriptor      // Inner enums, if any.
-	ext      []*ExtensionDescriptor // Extensions, if any.
-	typename []string               // Cached typename vector.
-	index    int                    // The index into the container, whether the file or another message.
-	path     string                 // The SourceCodeInfo path as comma-separated integers.
-	group    bool
-}
-
-// TypeName returns the elements of the dotted type name.
-// The package name is not part of this name.
-func (d *Descriptor) TypeName() []string {
-	if d.typename != nil {
-		return d.typename
-	}
-	n := 0
-	for parent := d; parent != nil; parent = parent.parent {
-		n++
-	}
-	s := make([]string, n)
-	for parent := d; parent != nil; parent = parent.parent {
-		n--
-		s[n] = parent.GetName()
-	}
-	d.typename = s
-	return s
-}
-
-// EnumDescriptor describes an enum. If it's at top level, its parent will be nil.
-// Otherwise it will be the descriptor of the message in which it is defined.
-type EnumDescriptor struct {
-	common
-	*descriptor.EnumDescriptorProto
-	parent   *Descriptor // The containing message, if any.
-	typename []string    // Cached typename vector.
-	index    int         // The index into the container, whether the file or a message.
-	path     string      // The SourceCodeInfo path as comma-separated integers.
-}
-
-// TypeName returns the elements of the dotted type name.
-// The package name is not part of this name.
-func (e *EnumDescriptor) TypeName() (s []string) {
-	if e.typename != nil {
-		return e.typename
-	}
-	name := e.GetName()
-	if e.parent == nil {
-		s = make([]string, 1)
-	} else {
-		pname := e.parent.TypeName()
-		s = make([]string, len(pname)+1)
-		copy(s, pname)
-	}
-	s[len(s)-1] = name
-	e.typename = s
-	return s
-}
-
-// Everything but the last element of the full type name, CamelCased.
-// The values of type Foo.Bar are call Foo_value1... not Foo_Bar_value1... .
-func (e *EnumDescriptor) prefix() string {
-	if e.parent == nil {
-		// If the enum is not part of a message, the prefix is just the type name.
-		return CamelCase(*e.Name) + "_"
-	}
-	typeName := e.TypeName()
-	return CamelCaseSlice(typeName[0:len(typeName)-1]) + "_"
-}
-
-// The integer value of the named constant in this enumerated type.
-func (e *EnumDescriptor) integerValueAsString(name string) string {
-	for _, c := range e.Value {
-		if c.GetName() == name {
-			return fmt.Sprint(c.GetNumber())
-		}
-	}
-	log.Fatal("cannot find value for enum constant")
-	return ""
-}
-
-// ExtensionDescriptor describes an extension. If it's at top level, its parent will be nil.
-// Otherwise it will be the descriptor of the message in which it is defined.
-type ExtensionDescriptor struct {
-	common
-	*descriptor.FieldDescriptorProto
-	parent *Descriptor // The containing message, if any.
-}
-
-// TypeName returns the elements of the dotted type name.
-// The package name is not part of this name.
-func (e *ExtensionDescriptor) TypeName() (s []string) {
-	name := e.GetName()
-	if e.parent == nil {
-		// top-level extension
-		s = make([]string, 1)
-	} else {
-		pname := e.parent.TypeName()
-		s = make([]string, len(pname)+1)
-		copy(s, pname)
-	}
-	s[len(s)-1] = name
-	return s
-}
-
-// DescName returns the variable name used for the generated descriptor.
-func (e *ExtensionDescriptor) DescName() string {
-	// The full type name.
-	typeName := e.TypeName()
-	// Each scope of the extension is individually CamelCased, and all are joined with "_" with an "E_" prefix.
-	for i, s := range typeName {
-		typeName[i] = CamelCase(s)
-	}
-	return "E_" + strings.Join(typeName, "_")
-}
-
-// ImportedDescriptor describes a type that has been publicly imported from another file.
-type ImportedDescriptor struct {
-	common
-	o Object
-}
-
-func (id *ImportedDescriptor) TypeName() []string { return id.o.TypeName() }
-
-// FileDescriptor describes an protocol buffer descriptor file (.proto).
-// It includes slices of all the messages and enums defined within it.
-// Those slices are constructed by WrapTypes.
-type FileDescriptor struct {
-	*descriptor.FileDescriptorProto
-	desc []*Descriptor          // All the messages defined in this file.
-	enum []*EnumDescriptor      // All the enums defined in this file.
-	ext  []*ExtensionDescriptor // All the top-level extensions defined in this file.
-	imp  []*ImportedDescriptor  // All types defined in files publicly imported by this file.
-
-	// Comments, stored as a map of path (comma-separated integers) to the comment.
-	comments map[string]*descriptor.SourceCodeInfo_Location
-
-	// The full list of symbols that are exported,
-	// as a map from the exported object to its symbols.
-	// This is used for supporting public imports.
-	exported map[Object][]symbol
-
-	importPath  GoImportPath  // Import path of this file's package.
-	packageName GoPackageName // Name of this file's Go package.
-
-	proto3 bool // whether to generate proto3 code for this file
-}
-
-// VarName is the variable name we'll use in the generated code to refer
-// to the compressed bytes of this descriptor. It is not exported, so
-// it is only valid inside the generated package.
-func (d *FileDescriptor) VarName() string {
-	h := sha256.Sum256([]byte(d.GetName()))
-	return fmt.Sprintf("fileDescriptor_%s", hex.EncodeToString(h[:8]))
-}
-
-// goPackageOption interprets the file's go_package option.
-// If there is no go_package, it returns ("", "", false).
-// If there's a simple name, it returns ("", pkg, true).
-// If the option implies an import path, it returns (impPath, pkg, true).
-func (d *FileDescriptor) goPackageOption() (impPath GoImportPath, pkg GoPackageName, ok bool) {
-	opt := d.GetOptions().GetGoPackage()
-	if opt == "" {
-		return "", "", false
-	}
-	// A semicolon-delimited suffix delimits the import path and package name.
-	sc := strings.Index(opt, ";")
-	if sc >= 0 {
-		return GoImportPath(opt[:sc]), cleanPackageName(opt[sc+1:]), true
-	}
-	// The presence of a slash implies there's an import path.
-	slash := strings.LastIndex(opt, "/")
-	if slash >= 0 {
-		return GoImportPath(opt), cleanPackageName(opt[slash+1:]), true
-	}
-	return "", cleanPackageName(opt), true
-}
-
-// goFileName returns the output name for the generated Go file.
-func (d *FileDescriptor) goFileName(pathType pathType) string {
-	name := *d.Name
-	if ext := path.Ext(name); ext == ".proto" || ext == ".protodevel" {
-		name = name[:len(name)-len(ext)]
-	}
-	name += ".pb.go"
-
-	if pathType == pathTypeSourceRelative {
-		return name
-	}
-
-	// Does the file have a "go_package" option?
-	// If it does, it may override the filename.
-	if impPath, _, ok := d.goPackageOption(); ok && impPath != "" {
-		// Replace the existing dirname with the declared import path.
-		_, name = path.Split(name)
-		name = path.Join(string(impPath), name)
-		return name
-	}
-
-	return name
-}
-
-func (d *FileDescriptor) addExport(obj Object, sym symbol) {
-	d.exported[obj] = append(d.exported[obj], sym)
-}
-
-// symbol is an interface representing an exported Go symbol.
-type symbol interface {
-	// GenerateAlias should generate an appropriate alias
-	// for the symbol from the named package.
-	GenerateAlias(g *Generator, filename string, pkg GoPackageName)
-}
-
-type messageSymbol struct {
-	sym                         string
-	hasExtensions, isMessageSet bool
-	oneofTypes                  []string
-}
-
-type getterSymbol struct {
-	name     string
-	typ      string
-	typeName string // canonical name in proto world; empty for proto.Message and similar
-	genType  bool   // whether typ contains a generated type (message/group/enum)
-}
-
-func (ms *messageSymbol) GenerateAlias(g *Generator, filename string, pkg GoPackageName) {
-	g.P("// ", ms.sym, " from public import ", filename)
-	g.P("type ", ms.sym, " = ", pkg, ".", ms.sym)
-	for _, name := range ms.oneofTypes {
-		g.P("type ", name, " = ", pkg, ".", name)
-	}
-}
-
-type enumSymbol struct {
-	name   string
-	proto3 bool // Whether this came from a proto3 file.
-}
-
-func (es enumSymbol) GenerateAlias(g *Generator, filename string, pkg GoPackageName) {
-	s := es.name
-	g.P("// ", s, " from public import ", filename)
-	g.P("type ", s, " = ", pkg, ".", s)
-	g.P("var ", s, "_name = ", pkg, ".", s, "_name")
-	g.P("var ", s, "_value = ", pkg, ".", s, "_value")
-}
-
-type constOrVarSymbol struct {
-	sym  string
-	typ  string // either "const" or "var"
-	cast string // if non-empty, a type cast is required (used for enums)
-}
-
-func (cs constOrVarSymbol) GenerateAlias(g *Generator, filename string, pkg GoPackageName) {
-	v := string(pkg) + "." + cs.sym
-	if cs.cast != "" {
-		v = cs.cast + "(" + v + ")"
-	}
-	g.P(cs.typ, " ", cs.sym, " = ", v)
-}
-
-// Object is an interface abstracting the abilities shared by enums, messages, extensions and imported objects.
-type Object interface {
-	GoImportPath() GoImportPath
-	TypeName() []string
-	File() *FileDescriptor
-}
-
-// Generator is the type whose methods generate the output, stored in the associated response structure.
-type Generator struct {
-	*bytes.Buffer
-
-	Request  *plugin.CodeGeneratorRequest  // The input.
-	Response *plugin.CodeGeneratorResponse // The output.
-
-	Param             map[string]string // Command-line parameters.
-	PackageImportPath string            // Go import path of the package we're generating code for
-	ImportPrefix      string            // String to prefix to imported package file names.
-	ImportMap         map[string]string // Mapping from .proto file name to import path
-
-	Pkg map[string]string // The names under which we import support packages
-
-	outputImportPath GoImportPath                   // Package we're generating code for.
-	allFiles         []*FileDescriptor              // All files in the tree
-	allFilesByName   map[string]*FileDescriptor     // All files by filename.
-	genFiles         []*FileDescriptor              // Those files we will generate output for.
-	file             *FileDescriptor                // The file we are compiling now.
-	packageNames     map[GoImportPath]GoPackageName // Imported package names in the current file.
-	usedPackages     map[GoImportPath]bool          // Packages used in current file.
-	usedPackageNames map[GoPackageName]bool         // Package names used in the current file.
-	addedImports     map[GoImportPath]bool          // Additional imports to emit.
-	typeNameToObject map[string]Object              // Key is a fully-qualified name in input syntax.
-	init             []string                       // Lines to emit in the init function.
-	indent           string
-	pathType         pathType // How to generate output filenames.
-	writeOutput      bool
-	annotateCode     bool                                       // whether to store annotations
-	annotations      []*descriptor.GeneratedCodeInfo_Annotation // annotations to store
-}
-
-type pathType int
-
-const (
-	pathTypeImport pathType = iota
-	pathTypeSourceRelative
-)
-
-// New creates a new generator and allocates the request and response protobufs.
-func New() *Generator {
-	g := new(Generator)
-	g.Buffer = new(bytes.Buffer)
-	g.Request = new(plugin.CodeGeneratorRequest)
-	g.Response = new(plugin.CodeGeneratorResponse)
-	return g
-}
-
-// Error reports a problem, including an error, and exits the program.
-func (g *Generator) Error(err error, msgs ...string) {
-	s := strings.Join(msgs, " ") + ":" + err.Error()
-	log.Print("protoc-gen-go: error:", s)
-	os.Exit(1)
-}
-
-// Fail reports a problem and exits the program.
-func (g *Generator) Fail(msgs ...string) {
-	s := strings.Join(msgs, " ")
-	log.Print("protoc-gen-go: error:", s)
-	os.Exit(1)
-}
-
-// CommandLineParameters breaks the comma-separated list of key=value pairs
-// in the parameter (a member of the request protobuf) into a key/value map.
-// It then sets file name mappings defined by those entries.
-func (g *Generator) CommandLineParameters(parameter string) {
-	g.Param = make(map[string]string)
-	for _, p := range strings.Split(parameter, ",") {
-		if i := strings.Index(p, "="); i < 0 {
-			g.Param[p] = ""
-		} else {
-			g.Param[p[0:i]] = p[i+1:]
-		}
-	}
-
-	g.ImportMap = make(map[string]string)
-	pluginList := "none" // Default list of plugin names to enable (empty means all).
-	for k, v := range g.Param {
-		switch k {
-		case "import_prefix":
-			g.ImportPrefix = v
-		case "import_path":
-			g.PackageImportPath = v
-		case "paths":
-			switch v {
-			case "import":
-				g.pathType = pathTypeImport
-			case "source_relative":
-				g.pathType = pathTypeSourceRelative
-			default:
-				g.Fail(fmt.Sprintf(`Unknown path type %q: want "import" or "source_relative".`, v))
-			}
-		case "plugins":
-			pluginList = v
-		case "annotate_code":
-			if v == "true" {
-				g.annotateCode = true
-			}
-		default:
-			if len(k) > 0 && k[0] == 'M' {
-				g.ImportMap[k[1:]] = v
-			}
-		}
-	}
-	if pluginList != "" {
-		// Amend the set of plugins.
-		enabled := make(map[string]bool)
-		for _, name := range strings.Split(pluginList, "+") {
-			enabled[name] = true
-		}
-		var nplugins []Plugin
-		for _, p := range plugins {
-			if enabled[p.Name()] {
-				nplugins = append(nplugins, p)
-			}
-		}
-		plugins = nplugins
-	}
-}
-
-// DefaultPackageName returns the package name printed for the object.
-// If its file is in a different package, it returns the package name we're using for this file, plus ".".
-// Otherwise it returns the empty string.
-func (g *Generator) DefaultPackageName(obj Object) string {
-	importPath := obj.GoImportPath()
-	if importPath == g.outputImportPath {
-		return ""
-	}
-	return string(g.GoPackageName(importPath)) + "."
-}
-
-// GoPackageName returns the name used for a package.
-func (g *Generator) GoPackageName(importPath GoImportPath) GoPackageName {
-	if name, ok := g.packageNames[importPath]; ok {
-		return name
-	}
-	name := cleanPackageName(baseName(string(importPath)))
-	for i, orig := 1, name; g.usedPackageNames[name] || isGoPredeclaredIdentifier[string(name)]; i++ {
-		name = orig + GoPackageName(strconv.Itoa(i))
-	}
-	g.packageNames[importPath] = name
-	g.usedPackageNames[name] = true
-	return name
-}
-
-// AddImport adds a package to the generated file's import section.
-// It returns the name used for the package.
-func (g *Generator) AddImport(importPath GoImportPath) GoPackageName {
-	g.addedImports[importPath] = true
-	return g.GoPackageName(importPath)
-}
-
-var globalPackageNames = map[GoPackageName]bool{
-	"fmt":   true,
-	"math":  true,
-	"proto": true,
-}
-
-// Create and remember a guaranteed unique package name. Pkg is the candidate name.
-// The FileDescriptor parameter is unused.
-func RegisterUniquePackageName(pkg string, f *FileDescriptor) string {
-	name := cleanPackageName(pkg)
-	for i, orig := 1, name; globalPackageNames[name]; i++ {
-		name = orig + GoPackageName(strconv.Itoa(i))
-	}
-	globalPackageNames[name] = true
-	return string(name)
-}
-
-var isGoKeyword = map[string]bool{
-	"break":       true,
-	"case":        true,
-	"chan":        true,
-	"const":       true,
-	"continue":    true,
-	"default":     true,
-	"else":        true,
-	"defer":       true,
-	"fallthrough": true,
-	"for":         true,
-	"func":        true,
-	"go":          true,
-	"goto":        true,
-	"if":          true,
-	"import":      true,
-	"interface":   true,
-	"map":         true,
-	"package":     true,
-	"range":       true,
-	"return":      true,
-	"select":      true,
-	"struct":      true,
-	"switch":      true,
-	"type":        true,
-	"var":         true,
-}
-
-var isGoPredeclaredIdentifier = map[string]bool{
-	"append":     true,
-	"bool":       true,
-	"byte":       true,
-	"cap":        true,
-	"close":      true,
-	"complex":    true,
-	"complex128": true,
-	"complex64":  true,
-	"copy":       true,
-	"delete":     true,
-	"error":      true,
-	"false":      true,
-	"float32":    true,
-	"float64":    true,
-	"imag":       true,
-	"int":        true,
-	"int16":      true,
-	"int32":      true,
-	"int64":      true,
-	"int8":       true,
-	"iota":       true,
-	"len":        true,
-	"make":       true,
-	"new":        true,
-	"nil":        true,
-	"panic":      true,
-	"print":      true,
-	"println":    true,
-	"real":       true,
-	"recover":    true,
-	"rune":       true,
-	"string":     true,
-	"true":       true,
-	"uint":       true,
-	"uint16":     true,
-	"uint32":     true,
-	"uint64":     true,
-	"uint8":      true,
-	"uintptr":    true,
-}
-
-func cleanPackageName(name string) GoPackageName {
-	name = strings.Map(badToUnderscore, name)
-	// Identifier must not be keyword or predeclared identifier: insert _.
-	if isGoKeyword[name] {
-		name = "_" + name
-	}
-	// Identifier must not begin with digit: insert _.
-	if r, _ := utf8.DecodeRuneInString(name); unicode.IsDigit(r) {
-		name = "_" + name
-	}
-	return GoPackageName(name)
-}
-
-// defaultGoPackage returns the package name to use,
-// derived from the import path of the package we're building code for.
-func (g *Generator) defaultGoPackage() GoPackageName {
-	p := g.PackageImportPath
-	if i := strings.LastIndex(p, "/"); i >= 0 {
-		p = p[i+1:]
-	}
-	return cleanPackageName(p)
-}
-
-// SetPackageNames sets the package name for this run.
-// The package name must agree across all files being generated.
-// It also defines unique package names for all imported files.
-func (g *Generator) SetPackageNames() {
-	g.outputImportPath = g.genFiles[0].importPath
-
-	defaultPackageNames := make(map[GoImportPath]GoPackageName)
-	for _, f := range g.genFiles {
-		if _, p, ok := f.goPackageOption(); ok {
-			defaultPackageNames[f.importPath] = p
-		}
-	}
-	for _, f := range g.genFiles {
-		if _, p, ok := f.goPackageOption(); ok {
-			// Source file: option go_package = "quux/bar";
-			f.packageName = p
-		} else if p, ok := defaultPackageNames[f.importPath]; ok {
-			// A go_package option in another file in the same package.
-			//
-			// This is a poor choice in general, since every source file should
-			// contain a go_package option. Supported mainly for historical
-			// compatibility.
-			f.packageName = p
-		} else if p := g.defaultGoPackage(); p != "" {
-			// Command-line: import_path=quux/bar.
-			//
-			// The import_path flag sets a package name for files which don't
-			// contain a go_package option.
-			f.packageName = p
-		} else if p := f.GetPackage(); p != "" {
-			// Source file: package quux.bar;
-			f.packageName = cleanPackageName(p)
-		} else {
-			// Source filename.
-			f.packageName = cleanPackageName(baseName(f.GetName()))
-		}
-	}
-
-	// Check that all files have a consistent package name and import path.
-	for _, f := range g.genFiles[1:] {
-		if a, b := g.genFiles[0].importPath, f.importPath; a != b {
-			g.Fail(fmt.Sprintf("inconsistent package import paths: %v, %v", a, b))
-		}
-		if a, b := g.genFiles[0].packageName, f.packageName; a != b {
-			g.Fail(fmt.Sprintf("inconsistent package names: %v, %v", a, b))
-		}
-	}
-
-	// Names of support packages. These never vary (if there are conflicts,
-	// we rename the conflicting package), so this could be removed someday.
-	g.Pkg = map[string]string{
-		"fmt":   "fmt",
-		"math":  "math",
-		"proto": "proto",
-	}
-}
-
-// WrapTypes walks the incoming data, wrapping DescriptorProtos, EnumDescriptorProtos
-// and FileDescriptorProtos into file-referenced objects within the Generator.
-// It also creates the list of files to generate and so should be called before GenerateAllFiles.
-func (g *Generator) WrapTypes() {
-	g.allFiles = make([]*FileDescriptor, 0, len(g.Request.ProtoFile))
-	g.allFilesByName = make(map[string]*FileDescriptor, len(g.allFiles))
-	genFileNames := make(map[string]bool)
-	for _, n := range g.Request.FileToGenerate {
-		genFileNames[n] = true
-	}
-	for _, f := range g.Request.ProtoFile {
-		fd := &FileDescriptor{
-			FileDescriptorProto: f,
-			exported:            make(map[Object][]symbol),
-			proto3:              fileIsProto3(f),
-		}
-		// The import path may be set in a number of ways.
-		if substitution, ok := g.ImportMap[f.GetName()]; ok {
-			// Command-line: M=foo.proto=quux/bar.
-			//
-			// Explicit mapping of source file to import path.
-			fd.importPath = GoImportPath(substitution)
-		} else if genFileNames[f.GetName()] && g.PackageImportPath != "" {
-			// Command-line: import_path=quux/bar.
-			//
-			// The import_path flag sets the import path for every file that
-			// we generate code for.
-			fd.importPath = GoImportPath(g.PackageImportPath)
-		} else if p, _, _ := fd.goPackageOption(); p != "" {
-			// Source file: option go_package = "quux/bar";
-			//
-			// The go_package option sets the import path. Most users should use this.
-			fd.importPath = p
-		} else {
-			// Source filename.
-			//
-			// Last resort when nothing else is available.
-			fd.importPath = GoImportPath(path.Dir(f.GetName()))
-		}
-		// We must wrap the descriptors before we wrap the enums
-		fd.desc = wrapDescriptors(fd)
-		g.buildNestedDescriptors(fd.desc)
-		fd.enum = wrapEnumDescriptors(fd, fd.desc)
-		g.buildNestedEnums(fd.desc, fd.enum)
-		fd.ext = wrapExtensions(fd)
-		extractComments(fd)
-		g.allFiles = append(g.allFiles, fd)
-		g.allFilesByName[f.GetName()] = fd
-	}
-	for _, fd := range g.allFiles {
-		fd.imp = wrapImported(fd, g)
-	}
-
-	g.genFiles = make([]*FileDescriptor, 0, len(g.Request.FileToGenerate))
-	for _, fileName := range g.Request.FileToGenerate {
-		fd := g.allFilesByName[fileName]
-		if fd == nil {
-			g.Fail("could not find file named", fileName)
-		}
-		g.genFiles = append(g.genFiles, fd)
-	}
-}
-
-// Scan the descriptors in this file.  For each one, build the slice of nested descriptors
-func (g *Generator) buildNestedDescriptors(descs []*Descriptor) {
-	for _, desc := range descs {
-		if len(desc.NestedType) != 0 {
-			for _, nest := range descs {
-				if nest.parent == desc {
-					desc.nested = append(desc.nested, nest)
-				}
-			}
-			if len(desc.nested) != len(desc.NestedType) {
-				g.Fail("internal error: nesting failure for", desc.GetName())
-			}
-		}
-	}
-}
-
-func (g *Generator) buildNestedEnums(descs []*Descriptor, enums []*EnumDescriptor) {
-	for _, desc := range descs {
-		if len(desc.EnumType) != 0 {
-			for _, enum := range enums {
-				if enum.parent == desc {
-					desc.enums = append(desc.enums, enum)
-				}
-			}
-			if len(desc.enums) != len(desc.EnumType) {
-				g.Fail("internal error: enum nesting failure for", desc.GetName())
-			}
-		}
-	}
-}
-
-// Construct the Descriptor
-func newDescriptor(desc *descriptor.DescriptorProto, parent *Descriptor, file *FileDescriptor, index int) *Descriptor {
-	d := &Descriptor{
-		common:          common{file},
-		DescriptorProto: desc,
-		parent:          parent,
-		index:           index,
-	}
-	if parent == nil {
-		d.path = fmt.Sprintf("%d,%d", messagePath, index)
-	} else {
-		d.path = fmt.Sprintf("%s,%d,%d", parent.path, messageMessagePath, index)
-	}
-
-	// The only way to distinguish a group from a message is whether
-	// the containing message has a TYPE_GROUP field that matches.
-	if parent != nil {
-		parts := d.TypeName()
-		if file.Package != nil {
-			parts = append([]string{*file.Package}, parts...)
-		}
-		exp := "." + strings.Join(parts, ".")
-		for _, field := range parent.Field {
-			if field.GetType() == descriptor.FieldDescriptorProto_TYPE_GROUP && field.GetTypeName() == exp {
-				d.group = true
-				break
-			}
-		}
-	}
-
-	for _, field := range desc.Extension {
-		d.ext = append(d.ext, &ExtensionDescriptor{common{file}, field, d})
-	}
-
-	return d
-}
-
-// Return a slice of all the Descriptors defined within this file
-func wrapDescriptors(file *FileDescriptor) []*Descriptor {
-	sl := make([]*Descriptor, 0, len(file.MessageType)+10)
-	for i, desc := range file.MessageType {
-		sl = wrapThisDescriptor(sl, desc, nil, file, i)
-	}
-	return sl
-}
-
-// Wrap this Descriptor, recursively
-func wrapThisDescriptor(sl []*Descriptor, desc *descriptor.DescriptorProto, parent *Descriptor, file *FileDescriptor, index int) []*Descriptor {
-	sl = append(sl, newDescriptor(desc, parent, file, index))
-	me := sl[len(sl)-1]
-	for i, nested := range desc.NestedType {
-		sl = wrapThisDescriptor(sl, nested, me, file, i)
-	}
-	return sl
-}
-
-// Construct the EnumDescriptor
-func newEnumDescriptor(desc *descriptor.EnumDescriptorProto, parent *Descriptor, file *FileDescriptor, index int) *EnumDescriptor {
-	ed := &EnumDescriptor{
-		common:              common{file},
-		EnumDescriptorProto: desc,
-		parent:              parent,
-		index:               index,
-	}
-	if parent == nil {
-		ed.path = fmt.Sprintf("%d,%d", enumPath, index)
-	} else {
-		ed.path = fmt.Sprintf("%s,%d,%d", parent.path, messageEnumPath, index)
-	}
-	return ed
-}
-
-// Return a slice of all the EnumDescriptors defined within this file
-func wrapEnumDescriptors(file *FileDescriptor, descs []*Descriptor) []*EnumDescriptor {
-	sl := make([]*EnumDescriptor, 0, len(file.EnumType)+10)
-	// Top-level enums.
-	for i, enum := range file.EnumType {
-		sl = append(sl, newEnumDescriptor(enum, nil, file, i))
-	}
-	// Enums within messages. Enums within embedded messages appear in the outer-most message.
-	for _, nested := range descs {
-		for i, enum := range nested.EnumType {
-			sl = append(sl, newEnumDescriptor(enum, nested, file, i))
-		}
-	}
-	return sl
-}
-
-// Return a slice of all the top-level ExtensionDescriptors defined within this file.
-func wrapExtensions(file *FileDescriptor) []*ExtensionDescriptor {
-	var sl []*ExtensionDescriptor
-	for _, field := range file.Extension {
-		sl = append(sl, &ExtensionDescriptor{common{file}, field, nil})
-	}
-	return sl
-}
-
-// Return a slice of all the types that are publicly imported into this file.
-func wrapImported(file *FileDescriptor, g *Generator) (sl []*ImportedDescriptor) {
-	for _, index := range file.PublicDependency {
-		df := g.fileByName(file.Dependency[index])
-		for _, d := range df.desc {
-			if d.GetOptions().GetMapEntry() {
-				continue
-			}
-			sl = append(sl, &ImportedDescriptor{common{file}, d})
-		}
-		for _, e := range df.enum {
-			sl = append(sl, &ImportedDescriptor{common{file}, e})
-		}
-		for _, ext := range df.ext {
-			sl = append(sl, &ImportedDescriptor{common{file}, ext})
-		}
-	}
-	return
-}
-
-func extractComments(file *FileDescriptor) {
-	file.comments = make(map[string]*descriptor.SourceCodeInfo_Location)
-	for _, loc := range file.GetSourceCodeInfo().GetLocation() {
-		if loc.LeadingComments == nil {
-			continue
-		}
-		var p []string
-		for _, n := range loc.Path {
-			p = append(p, strconv.Itoa(int(n)))
-		}
-		file.comments[strings.Join(p, ",")] = loc
-	}
-}
-
-// BuildTypeNameMap builds the map from fully qualified type names to objects.
-// The key names for the map come from the input data, which puts a period at the beginning.
-// It should be called after SetPackageNames and before GenerateAllFiles.
-func (g *Generator) BuildTypeNameMap() {
-	g.typeNameToObject = make(map[string]Object)
-	for _, f := range g.allFiles {
-		// The names in this loop are defined by the proto world, not us, so the
-		// package name may be empty.  If so, the dotted package name of X will
-		// be ".X"; otherwise it will be ".pkg.X".
-		dottedPkg := "." + f.GetPackage()
-		if dottedPkg != "." {
-			dottedPkg += "."
-		}
-		for _, enum := range f.enum {
-			name := dottedPkg + dottedSlice(enum.TypeName())
-			g.typeNameToObject[name] = enum
-		}
-		for _, desc := range f.desc {
-			name := dottedPkg + dottedSlice(desc.TypeName())
-			g.typeNameToObject[name] = desc
-		}
-	}
-}
-
-// ObjectNamed, given a fully-qualified input type name as it appears in the input data,
-// returns the descriptor for the message or enum with that name.
-func (g *Generator) ObjectNamed(typeName string) Object {
-	o, ok := g.typeNameToObject[typeName]
-	if !ok {
-		g.Fail("can't find object with type", typeName)
-	}
-	return o
-}
-
-// AnnotatedAtoms is a list of atoms (as consumed by P) that records the file name and proto AST path from which they originated.
-type AnnotatedAtoms struct {
-	source string
-	path   string
-	atoms  []interface{}
-}
-
-// Annotate records the file name and proto AST path of a list of atoms
-// so that a later call to P can emit a link from each atom to its origin.
-func Annotate(file *FileDescriptor, path string, atoms ...interface{}) *AnnotatedAtoms {
-	return &AnnotatedAtoms{source: *file.Name, path: path, atoms: atoms}
-}
-
-// printAtom prints the (atomic, non-annotation) argument to the generated output.
-func (g *Generator) printAtom(v interface{}) {
-	switch v := v.(type) {
-	case string:
-		g.WriteString(v)
-	case *string:
-		g.WriteString(*v)
-	case bool:
-		fmt.Fprint(g, v)
-	case *bool:
-		fmt.Fprint(g, *v)
-	case int:
-		fmt.Fprint(g, v)
-	case *int32:
-		fmt.Fprint(g, *v)
-	case *int64:
-		fmt.Fprint(g, *v)
-	case float64:
-		fmt.Fprint(g, v)
-	case *float64:
-		fmt.Fprint(g, *v)
-	case GoPackageName:
-		g.WriteString(string(v))
-	case GoImportPath:
-		g.WriteString(strconv.Quote(string(v)))
-	default:
-		g.Fail(fmt.Sprintf("unknown type in printer: %T", v))
-	}
-}
-
-// P prints the arguments to the generated output.  It handles strings and int32s, plus
-// handling indirections because they may be *string, etc.  Any inputs of type AnnotatedAtoms may emit
-// annotations in a .meta file in addition to outputting the atoms themselves (if g.annotateCode
-// is true).
-func (g *Generator) P(str ...interface{}) {
-	if !g.writeOutput {
-		return
-	}
-	g.WriteString(g.indent)
-	for _, v := range str {
-		switch v := v.(type) {
-		case *AnnotatedAtoms:
-			begin := int32(g.Len())
-			for _, v := range v.atoms {
-				g.printAtom(v)
-			}
-			if g.annotateCode {
-				end := int32(g.Len())
-				var path []int32
-				for _, token := range strings.Split(v.path, ",") {
-					val, err := strconv.ParseInt(token, 10, 32)
-					if err != nil {
-						g.Fail("could not parse proto AST path: ", err.Error())
-					}
-					path = append(path, int32(val))
-				}
-				g.annotations = append(g.annotations, &descriptor.GeneratedCodeInfo_Annotation{
-					Path:       path,
-					SourceFile: &v.source,
-					Begin:      &begin,
-					End:        &end,
-				})
-			}
-		default:
-			g.printAtom(v)
-		}
-	}
-	g.WriteByte('\n')
-}
-
-// addInitf stores the given statement to be printed inside the file's init function.
-// The statement is given as a format specifier and arguments.
-func (g *Generator) addInitf(stmt string, a ...interface{}) {
-	g.init = append(g.init, fmt.Sprintf(stmt, a...))
-}
-
-// In Indents the output one tab stop.
-func (g *Generator) In() { g.indent += "\t" }
-
-// Out unindents the output one tab stop.
-func (g *Generator) Out() {
-	if len(g.indent) > 0 {
-		g.indent = g.indent[1:]
-	}
-}
-
-// GenerateAllFiles generates the output for all the files we're outputting.
-func (g *Generator) GenerateAllFiles() {
-	// Initialize the plugins
-	for _, p := range plugins {
-		p.Init(g)
-	}
-	// Generate the output. The generator runs for every file, even the files
-	// that we don't generate output for, so that we can collate the full list
-	// of exported symbols to support public imports.
-	genFileMap := make(map[*FileDescriptor]bool, len(g.genFiles))
-	for _, file := range g.genFiles {
-		genFileMap[file] = true
-	}
-	for _, file := range g.allFiles {
-		g.Reset()
-		g.annotations = nil
-		g.writeOutput = genFileMap[file]
-		g.generate(file)
-		if !g.writeOutput {
-			continue
-		}
-		fname := file.goFileName(g.pathType)
-		g.Response.File = append(g.Response.File, &plugin.CodeGeneratorResponse_File{
-			Name:    proto.String(fname),
-			Content: proto.String(g.String()),
-		})
-		if g.annotateCode {
-			// Store the generated code annotations in text, as the protoc plugin protocol requires that
-			// strings contain valid UTF-8.
-			g.Response.File = append(g.Response.File, &plugin.CodeGeneratorResponse_File{
-				Name:    proto.String(file.goFileName(g.pathType) + ".meta"),
-				Content: proto.String(proto.CompactTextString(&descriptor.GeneratedCodeInfo{Annotation: g.annotations})),
-			})
-		}
-	}
-}
-
-// Run all the plugins associated with the file.
-func (g *Generator) runPlugins(file *FileDescriptor) {
-	for _, p := range plugins {
-		p.Generate(file)
-	}
-}
-
-// Fill the response protocol buffer with the generated output for all the files we're
-// supposed to generate.
-func (g *Generator) generate(file *FileDescriptor) {
-	g.file = file
-	g.usedPackages = make(map[GoImportPath]bool)
-	g.packageNames = make(map[GoImportPath]GoPackageName)
-	g.usedPackageNames = make(map[GoPackageName]bool)
-	g.addedImports = make(map[GoImportPath]bool)
-	for name := range globalPackageNames {
-		g.usedPackageNames[name] = true
-	}
-
-	g.P("// This is a compile-time assertion to ensure that this generated file")
-	g.P("// is compatible with the proto package it is being compiled against.")
-	g.P("// A compilation error at this line likely means your copy of the")
-	g.P("// proto package needs to be updated.")
-	g.P("const _ = ", g.Pkg["proto"], ".ProtoPackageIsVersion", generatedCodeVersion, " // please upgrade the proto package")
-	g.P()
-
-	for _, td := range g.file.imp {
-		g.generateImported(td)
-	}
-	for _, enum := range g.file.enum {
-		g.generateEnum(enum)
-	}
-	for _, desc := range g.file.desc {
-		// Don't generate virtual messages for maps.
-		if desc.GetOptions().GetMapEntry() {
-			continue
-		}
-		g.generateMessage(desc)
-	}
-	for _, ext := range g.file.ext {
-		g.generateExtension(ext)
-	}
-	g.generateInitFunction()
-	g.generateFileDescriptor(file)
-
-	// Run the plugins before the imports so we know which imports are necessary.
-	g.runPlugins(file)
-
-	// Generate header and imports last, though they appear first in the output.
-	rem := g.Buffer
-	remAnno := g.annotations
-	g.Buffer = new(bytes.Buffer)
-	g.annotations = nil
-	g.generateHeader()
-	g.generateImports()
-	if !g.writeOutput {
-		return
-	}
-	// Adjust the offsets for annotations displaced by the header and imports.
-	for _, anno := range remAnno {
-		*anno.Begin += int32(g.Len())
-		*anno.End += int32(g.Len())
-		g.annotations = append(g.annotations, anno)
-	}
-	g.Write(rem.Bytes())
-
-	// Reformat generated code and patch annotation locations.
-	fset := token.NewFileSet()
-	original := g.Bytes()
-	if g.annotateCode {
-		// make a copy independent of g; we'll need it after Reset.
-		original = append([]byte(nil), original...)
-	}
-	fileAST, err := parser.ParseFile(fset, "", original, parser.ParseComments)
-	if err != nil {
-		// Print out the bad code with line numbers.
-		// This should never happen in practice, but it can while changing generated code,
-		// so consider this a debugging aid.
-		var src bytes.Buffer
-		s := bufio.NewScanner(bytes.NewReader(original))
-		for line := 1; s.Scan(); line++ {
-			fmt.Fprintf(&src, "%5d\t%s\n", line, s.Bytes())
-		}
-		g.Fail("bad Go source code was generated:", err.Error(), "\n"+src.String())
-	}
-	ast.SortImports(fset, fileAST)
-	g.Reset()
-	err = (&printer.Config{Mode: printer.TabIndent | printer.UseSpaces, Tabwidth: 8}).Fprint(g, fset, fileAST)
-	if err != nil {
-		g.Fail("generated Go source code could not be reformatted:", err.Error())
-	}
-	if g.annotateCode {
-		m, err := remap.Compute(original, g.Bytes())
-		if err != nil {
-			g.Fail("formatted generated Go source code could not be mapped back to the original code:", err.Error())
-		}
-		for _, anno := range g.annotations {
-			new, ok := m.Find(int(*anno.Begin), int(*anno.End))
-			if !ok {
-				g.Fail("span in formatted generated Go source code could not be mapped back to the original code")
-			}
-			*anno.Begin = int32(new.Pos)
-			*anno.End = int32(new.End)
-		}
-	}
-}
-
-// Generate the header, including package definition
-func (g *Generator) generateHeader() {
-	g.P("// Code generated by protoc-gen-go. DO NOT EDIT.")
-	if g.file.GetOptions().GetDeprecated() {
-		g.P("// ", g.file.Name, " is a deprecated file.")
-	} else {
-		g.P("// source: ", g.file.Name)
-	}
-	g.P()
-	g.PrintComments(strconv.Itoa(packagePath))
-	g.P()
-	g.P("package ", g.file.packageName)
-	g.P()
-}
-
-// deprecationComment is the standard comment added to deprecated
-// messages, fields, enums, and enum values.
-var deprecationComment = "// Deprecated: Do not use."
-
-// PrintComments prints any comments from the source .proto file.
-// The path is a comma-separated list of integers.
-// It returns an indication of whether any comments were printed.
-// See descriptor.proto for its format.
-func (g *Generator) PrintComments(path string) bool {
-	if !g.writeOutput {
-		return false
-	}
-	if c, ok := g.makeComments(path); ok {
-		g.P(c)
-		return true
-	}
-	return false
-}
-
-// makeComments generates the comment string for the field, no "\n" at the end
-func (g *Generator) makeComments(path string) (string, bool) {
-	loc, ok := g.file.comments[path]
-	if !ok {
-		return "", false
-	}
-	w := new(bytes.Buffer)
-	nl := ""
-	for _, line := range strings.Split(strings.TrimSuffix(loc.GetLeadingComments(), "\n"), "\n") {
-		fmt.Fprintf(w, "%s//%s", nl, line)
-		nl = "\n"
-	}
-	return w.String(), true
-}
-
-func (g *Generator) fileByName(filename string) *FileDescriptor {
-	return g.allFilesByName[filename]
-}
-
-// weak returns whether the ith import of the current file is a weak import.
-func (g *Generator) weak(i int32) bool {
-	for _, j := range g.file.WeakDependency {
-		if j == i {
-			return true
-		}
-	}
-	return false
-}
-
-// Generate the imports
-func (g *Generator) generateImports() {
-	imports := make(map[GoImportPath]GoPackageName)
-	for i, s := range g.file.Dependency {
-		fd := g.fileByName(s)
-		importPath := fd.importPath
-		// Do not import our own package.
-		if importPath == g.file.importPath {
-			continue
-		}
-		// Do not import weak imports.
-		if g.weak(int32(i)) {
-			continue
-		}
-		// Do not import a package twice.
-		if _, ok := imports[importPath]; ok {
-			continue
-		}
-		// We need to import all the dependencies, even if we don't reference them,
-		// because other code and tools depend on having the full transitive closure
-		// of protocol buffer types in the binary.
-		packageName := g.GoPackageName(importPath)
-		if _, ok := g.usedPackages[importPath]; !ok {
-			packageName = "_"
-		}
-		imports[importPath] = packageName
-	}
-	for importPath := range g.addedImports {
-		imports[importPath] = g.GoPackageName(importPath)
-	}
-	// We almost always need a proto import.  Rather than computing when we
-	// do, which is tricky when there's a plugin, just import it and
-	// reference it later. The same argument applies to the fmt and math packages.
-	g.P("import (")
-	g.P(g.Pkg["fmt"] + ` "fmt"`)
-	g.P(g.Pkg["math"] + ` "math"`)
-	g.P(g.Pkg["proto"]+" ", GoImportPath(g.ImportPrefix)+"github.com/golang/protobuf/proto")
-	for importPath, packageName := range imports {
-		g.P(packageName, " ", GoImportPath(g.ImportPrefix)+importPath)
-	}
-	g.P(")")
-	g.P()
-	// TODO: may need to worry about uniqueness across plugins
-	for _, p := range plugins {
-		p.GenerateImports(g.file)
-		g.P()
-	}
-	g.P("// Reference imports to suppress errors if they are not otherwise used.")
-	g.P("var _ = ", g.Pkg["proto"], ".Marshal")
-	g.P("var _ = ", g.Pkg["fmt"], ".Errorf")
-	g.P("var _ = ", g.Pkg["math"], ".Inf")
-	g.P()
-}
-
-func (g *Generator) generateImported(id *ImportedDescriptor) {
-	df := id.o.File()
-	filename := *df.Name
-	if df.importPath == g.file.importPath {
-		// Don't generate type aliases for files in the same Go package as this one.
-		return
-	}
-	if !supportTypeAliases {
-		g.Fail(fmt.Sprintf("%s: public imports require at least go1.9", filename))
-	}
-	g.usedPackages[df.importPath] = true
-
-	for _, sym := range df.exported[id.o] {
-		sym.GenerateAlias(g, filename, g.GoPackageName(df.importPath))
-	}
-
-	g.P()
-}
-
-// Generate the enum definitions for this EnumDescriptor.
-func (g *Generator) generateEnum(enum *EnumDescriptor) {
-	// The full type name
-	typeName := enum.TypeName()
-	// The full type name, CamelCased.
-	ccTypeName := CamelCaseSlice(typeName)
-	ccPrefix := enum.prefix()
-
-	deprecatedEnum := ""
-	if enum.GetOptions().GetDeprecated() {
-		deprecatedEnum = deprecationComment
-	}
-	g.PrintComments(enum.path)
-	g.P("type ", Annotate(enum.file, enum.path, ccTypeName), " int32", deprecatedEnum)
-	g.file.addExport(enum, enumSymbol{ccTypeName, enum.proto3()})
-	g.P("const (")
-	for i, e := range enum.Value {
-		etorPath := fmt.Sprintf("%s,%d,%d", enum.path, enumValuePath, i)
-		g.PrintComments(etorPath)
-
-		deprecatedValue := ""
-		if e.GetOptions().GetDeprecated() {
-			deprecatedValue = deprecationComment
-		}
-
-		name := ccPrefix + *e.Name
-		g.P(Annotate(enum.file, etorPath, name), " ", ccTypeName, " = ", e.Number, " ", deprecatedValue)
-		g.file.addExport(enum, constOrVarSymbol{name, "const", ccTypeName})
-	}
-	g.P(")")
-	g.P()
-	g.P("var ", ccTypeName, "_name = map[int32]string{")
-	generated := make(map[int32]bool) // avoid duplicate values
-	for _, e := range enum.Value {
-		duplicate := ""
-		if _, present := generated[*e.Number]; present {
-			duplicate = "// Duplicate value: "
-		}
-		g.P(duplicate, e.Number, ": ", strconv.Quote(*e.Name), ",")
-		generated[*e.Number] = true
-	}
-	g.P("}")
-	g.P()
-	g.P("var ", ccTypeName, "_value = map[string]int32{")
-	for _, e := range enum.Value {
-		g.P(strconv.Quote(*e.Name), ": ", e.Number, ",")
-	}
-	g.P("}")
-	g.P()
-
-	if !enum.proto3() {
-		g.P("func (x ", ccTypeName, ") Enum() *", ccTypeName, " {")
-		g.P("p := new(", ccTypeName, ")")
-		g.P("*p = x")
-		g.P("return p")
-		g.P("}")
-		g.P()
-	}
-
-	g.P("func (x ", ccTypeName, ") String() string {")
-	g.P("return ", g.Pkg["proto"], ".EnumName(", ccTypeName, "_name, int32(x))")
-	g.P("}")
-	g.P()
-
-	if !enum.proto3() {
-		g.P("func (x *", ccTypeName, ") UnmarshalJSON(data []byte) error {")
-		g.P("value, err := ", g.Pkg["proto"], ".UnmarshalJSONEnum(", ccTypeName, `_value, data, "`, ccTypeName, `")`)
-		g.P("if err != nil {")
-		g.P("return err")
-		g.P("}")
-		g.P("*x = ", ccTypeName, "(value)")
-		g.P("return nil")
-		g.P("}")
-		g.P()
-	}
-
-	var indexes []string
-	for m := enum.parent; m != nil; m = m.parent {
-		// XXX: skip groups?
-		indexes = append([]string{strconv.Itoa(m.index)}, indexes...)
-	}
-	indexes = append(indexes, strconv.Itoa(enum.index))
-	g.P("func (", ccTypeName, ") EnumDescriptor() ([]byte, []int) {")
-	g.P("return ", g.file.VarName(), ", []int{", strings.Join(indexes, ", "), "}")
-	g.P("}")
-	g.P()
-	if enum.file.GetPackage() == "google.protobuf" && enum.GetName() == "NullValue" {
-		g.P("func (", ccTypeName, `) XXX_WellKnownType() string { return "`, enum.GetName(), `" }`)
-		g.P()
-	}
-
-	g.generateEnumRegistration(enum)
-}
-
-// The tag is a string like "varint,2,opt,name=fieldname,def=7" that
-// identifies details of the field for the protocol buffer marshaling and unmarshaling
-// code.  The fields are:
-//	wire encoding
-//	protocol tag number
-//	opt,req,rep for optional, required, or repeated
-//	packed whether the encoding is "packed" (optional; repeated primitives only)
-//	name= the original declared name
-//	enum= the name of the enum type if it is an enum-typed field.
-//	proto3 if this field is in a proto3 message
-//	def= string representation of the default value, if any.
-// The default value must be in a representation that can be used at run-time
-// to generate the default value. Thus bools become 0 and 1, for instance.
-func (g *Generator) goTag(message *Descriptor, field *descriptor.FieldDescriptorProto, wiretype string) string {
-	optrepreq := ""
-	switch {
-	case isOptional(field):
-		optrepreq = "opt"
-	case isRequired(field):
-		optrepreq = "req"
-	case isRepeated(field):
-		optrepreq = "rep"
-	}
-	var defaultValue string
-	if dv := field.DefaultValue; dv != nil { // set means an explicit default
-		defaultValue = *dv
-		// Some types need tweaking.
-		switch *field.Type {
-		case descriptor.FieldDescriptorProto_TYPE_BOOL:
-			if defaultValue == "true" {
-				defaultValue = "1"
-			} else {
-				defaultValue = "0"
-			}
-		case descriptor.FieldDescriptorProto_TYPE_STRING,
-			descriptor.FieldDescriptorProto_TYPE_BYTES:
-			// Nothing to do. Quoting is done for the whole tag.
-		case descriptor.FieldDescriptorProto_TYPE_ENUM:
-			// For enums we need to provide the integer constant.
-			obj := g.ObjectNamed(field.GetTypeName())
-			if id, ok := obj.(*ImportedDescriptor); ok {
-				// It is an enum that was publicly imported.
-				// We need the underlying type.
-				obj = id.o
-			}
-			enum, ok := obj.(*EnumDescriptor)
-			if !ok {
-				log.Printf("obj is a %T", obj)
-				if id, ok := obj.(*ImportedDescriptor); ok {
-					log.Printf("id.o is a %T", id.o)
-				}
-				g.Fail("unknown enum type", CamelCaseSlice(obj.TypeName()))
-			}
-			defaultValue = enum.integerValueAsString(defaultValue)
-		case descriptor.FieldDescriptorProto_TYPE_FLOAT:
-			if def := defaultValue; def != "inf" && def != "-inf" && def != "nan" {
-				if f, err := strconv.ParseFloat(defaultValue, 32); err == nil {
-					defaultValue = fmt.Sprint(float32(f))
-				}
-			}
-		case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
-			if def := defaultValue; def != "inf" && def != "-inf" && def != "nan" {
-				if f, err := strconv.ParseFloat(defaultValue, 64); err == nil {
-					defaultValue = fmt.Sprint(f)
-				}
-			}
-		}
-		defaultValue = ",def=" + defaultValue
-	}
-	enum := ""
-	if *field.Type == descriptor.FieldDescriptorProto_TYPE_ENUM {
-		// We avoid using obj.GoPackageName(), because we want to use the
-		// original (proto-world) package name.
-		obj := g.ObjectNamed(field.GetTypeName())
-		if id, ok := obj.(*ImportedDescriptor); ok {
-			obj = id.o
-		}
-		enum = ",enum="
-		if pkg := obj.File().GetPackage(); pkg != "" {
-			enum += pkg + "."
-		}
-		enum += CamelCaseSlice(obj.TypeName())
-	}
-	packed := ""
-	if (field.Options != nil && field.Options.GetPacked()) ||
-		// Per https://developers.google.com/protocol-buffers/docs/proto3#simple:
-		// "In proto3, repeated fields of scalar numeric types use packed encoding by default."
-		(message.proto3() && (field.Options == nil || field.Options.Packed == nil) &&
-			isRepeated(field) && isScalar(field)) {
-		packed = ",packed"
-	}
-	fieldName := field.GetName()
-	name := fieldName
-	if *field.Type == descriptor.FieldDescriptorProto_TYPE_GROUP {
-		// We must use the type name for groups instead of
-		// the field name to preserve capitalization.
-		// type_name in FieldDescriptorProto is fully-qualified,
-		// but we only want the local part.
-		name = *field.TypeName
-		if i := strings.LastIndex(name, "."); i >= 0 {
-			name = name[i+1:]
-		}
-	}
-	if json := field.GetJsonName(); field.Extendee == nil && json != "" && json != name {
-		// TODO: escaping might be needed, in which case
-		// perhaps this should be in its own "json" tag.
-		name += ",json=" + json
-	}
-	name = ",name=" + name
-	if message.proto3() {
-		name += ",proto3"
-	}
-	oneof := ""
-	if field.OneofIndex != nil {
-		oneof = ",oneof"
-	}
-	return strconv.Quote(fmt.Sprintf("%s,%d,%s%s%s%s%s%s",
-		wiretype,
-		field.GetNumber(),
-		optrepreq,
-		packed,
-		name,
-		enum,
-		oneof,
-		defaultValue))
-}
-
-func needsStar(typ descriptor.FieldDescriptorProto_Type) bool {
-	switch typ {
-	case descriptor.FieldDescriptorProto_TYPE_GROUP:
-		return false
-	case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-		return false
-	case descriptor.FieldDescriptorProto_TYPE_BYTES:
-		return false
-	}
-	return true
-}
-
-// TypeName is the printed name appropriate for an item. If the object is in the current file,
-// TypeName drops the package name and underscores the rest.
-// Otherwise the object is from another package; and the result is the underscored
-// package name followed by the item name.
-// The result always has an initial capital.
-func (g *Generator) TypeName(obj Object) string {
-	return g.DefaultPackageName(obj) + CamelCaseSlice(obj.TypeName())
-}
-
-// GoType returns a string representing the type name, and the wire type
-func (g *Generator) GoType(message *Descriptor, field *descriptor.FieldDescriptorProto) (typ string, wire string) {
-	// TODO: Options.
-	switch *field.Type {
-	case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
-		typ, wire = "float64", "fixed64"
-	case descriptor.FieldDescriptorProto_TYPE_FLOAT:
-		typ, wire = "float32", "fixed32"
-	case descriptor.FieldDescriptorProto_TYPE_INT64:
-		typ, wire = "int64", "varint"
-	case descriptor.FieldDescriptorProto_TYPE_UINT64:
-		typ, wire = "uint64", "varint"
-	case descriptor.FieldDescriptorProto_TYPE_INT32:
-		typ, wire = "int32", "varint"
-	case descriptor.FieldDescriptorProto_TYPE_UINT32:
-		typ, wire = "uint32", "varint"
-	case descriptor.FieldDescriptorProto_TYPE_FIXED64:
-		typ, wire = "uint64", "fixed64"
-	case descriptor.FieldDescriptorProto_TYPE_FIXED32:
-		typ, wire = "uint32", "fixed32"
-	case descriptor.FieldDescriptorProto_TYPE_BOOL:
-		typ, wire = "bool", "varint"
-	case descriptor.FieldDescriptorProto_TYPE_STRING:
-		typ, wire = "string", "bytes"
-	case descriptor.FieldDescriptorProto_TYPE_GROUP:
-		desc := g.ObjectNamed(field.GetTypeName())
-		typ, wire = "*"+g.TypeName(desc), "group"
-	case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-		desc := g.ObjectNamed(field.GetTypeName())
-		typ, wire = "*"+g.TypeName(desc), "bytes"
-	case descriptor.FieldDescriptorProto_TYPE_BYTES:
-		typ, wire = "[]byte", "bytes"
-	case descriptor.FieldDescriptorProto_TYPE_ENUM:
-		desc := g.ObjectNamed(field.GetTypeName())
-		typ, wire = g.TypeName(desc), "varint"
-	case descriptor.FieldDescriptorProto_TYPE_SFIXED32:
-		typ, wire = "int32", "fixed32"
-	case descriptor.FieldDescriptorProto_TYPE_SFIXED64:
-		typ, wire = "int64", "fixed64"
-	case descriptor.FieldDescriptorProto_TYPE_SINT32:
-		typ, wire = "int32", "zigzag32"
-	case descriptor.FieldDescriptorProto_TYPE_SINT64:
-		typ, wire = "int64", "zigzag64"
-	default:
-		g.Fail("unknown type for", field.GetName())
-	}
-	if isRepeated(field) {
-		typ = "[]" + typ
-	} else if message != nil && message.proto3() {
-		return
-	} else if field.OneofIndex != nil && message != nil {
-		return
-	} else if needsStar(*field.Type) {
-		typ = "*" + typ
-	}
-	return
-}
-
-func (g *Generator) RecordTypeUse(t string) {
-	if _, ok := g.typeNameToObject[t]; !ok {
-		return
-	}
-	importPath := g.ObjectNamed(t).GoImportPath()
-	if importPath == g.outputImportPath {
-		// Don't record use of objects in our package.
-		return
-	}
-	g.AddImport(importPath)
-	g.usedPackages[importPath] = true
-}
-
-// Method names that may be generated.  Fields with these names get an
-// underscore appended. Any change to this set is a potential incompatible
-// API change because it changes generated field names.
-var methodNames = [...]string{
-	"Reset",
-	"String",
-	"ProtoMessage",
-	"Marshal",
-	"Unmarshal",
-	"ExtensionRangeArray",
-	"ExtensionMap",
-	"Descriptor",
-}
-
-// Names of messages in the `google.protobuf` package for which
-// we will generate XXX_WellKnownType methods.
-var wellKnownTypes = map[string]bool{
-	"Any":       true,
-	"Duration":  true,
-	"Empty":     true,
-	"Struct":    true,
-	"Timestamp": true,
-
-	"Value":       true,
-	"ListValue":   true,
-	"DoubleValue": true,
-	"FloatValue":  true,
-	"Int64Value":  true,
-	"UInt64Value": true,
-	"Int32Value":  true,
-	"UInt32Value": true,
-	"BoolValue":   true,
-	"StringValue": true,
-	"BytesValue":  true,
-}
-
-// getterDefault finds the default value for the field to return from a getter,
-// regardless of if it's a built in default or explicit from the source. Returns e.g. "nil", `""`, "Default_MessageType_FieldName"
-func (g *Generator) getterDefault(field *descriptor.FieldDescriptorProto, goMessageType string) string {
-	if isRepeated(field) {
-		return "nil"
-	}
-	if def := field.GetDefaultValue(); def != "" {
-		defaultConstant := g.defaultConstantName(goMessageType, field.GetName())
-		if *field.Type != descriptor.FieldDescriptorProto_TYPE_BYTES {
-			return defaultConstant
-		}
-		return "append([]byte(nil), " + defaultConstant + "...)"
-	}
-	switch *field.Type {
-	case descriptor.FieldDescriptorProto_TYPE_BOOL:
-		return "false"
-	case descriptor.FieldDescriptorProto_TYPE_STRING:
-		return `""`
-	case descriptor.FieldDescriptorProto_TYPE_GROUP, descriptor.FieldDescriptorProto_TYPE_MESSAGE, descriptor.FieldDescriptorProto_TYPE_BYTES:
-		return "nil"
-	case descriptor.FieldDescriptorProto_TYPE_ENUM:
-		obj := g.ObjectNamed(field.GetTypeName())
-		var enum *EnumDescriptor
-		if id, ok := obj.(*ImportedDescriptor); ok {
-			// The enum type has been publicly imported.
-			enum, _ = id.o.(*EnumDescriptor)
-		} else {
-			enum, _ = obj.(*EnumDescriptor)
-		}
-		if enum == nil {
-			log.Printf("don't know how to generate getter for %s", field.GetName())
-			return "nil"
-		}
-		if len(enum.Value) == 0 {
-			return "0 // empty enum"
-		}
-		first := enum.Value[0].GetName()
-		return g.DefaultPackageName(obj) + enum.prefix() + first
-	default:
-		return "0"
-	}
-}
-
-// defaultConstantName builds the name of the default constant from the message
-// type name and the untouched field name, e.g. "Default_MessageType_FieldName"
-func (g *Generator) defaultConstantName(goMessageType, protoFieldName string) string {
-	return "Default_" + goMessageType + "_" + CamelCase(protoFieldName)
-}
-
-// The different types of fields in a message and how to actually print them
-// Most of the logic for generateMessage is in the methods of these types.
-//
-// Note that the content of the field is irrelevant, a simpleField can contain
-// anything from a scalar to a group (which is just a message).
-//
-// Extension fields (and message sets) are however handled separately.
-//
-// simpleField - a field that is neiter weak nor oneof, possibly repeated
-// oneofField - field containing list of subfields:
-// - oneofSubField - a field within the oneof
-
-// msgCtx contains the context for the generator functions.
-type msgCtx struct {
-	goName  string      // Go struct name of the message, e.g. MessageName
-	message *Descriptor // The descriptor for the message
-}
-
-// fieldCommon contains data common to all types of fields.
-type fieldCommon struct {
-	goName     string // Go name of field, e.g. "FieldName" or "Descriptor_"
-	protoName  string // Name of field in proto language, e.g. "field_name" or "descriptor"
-	getterName string // Name of the getter, e.g. "GetFieldName" or "GetDescriptor_"
-	goType     string // The Go type as a string, e.g. "*int32" or "*OtherMessage"
-	tags       string // The tag string/annotation for the type, e.g. `protobuf:"varint,8,opt,name=region_id,json=regionId"`
-	fullPath   string // The full path of the field as used by Annotate etc, e.g. "4,0,2,0"
-}
-
-// getProtoName gets the proto name of a field, e.g. "field_name" or "descriptor".
-func (f *fieldCommon) getProtoName() string {
-	return f.protoName
-}
-
-// getGoType returns the go type of the field  as a string, e.g. "*int32".
-func (f *fieldCommon) getGoType() string {
-	return f.goType
-}
-
-// simpleField is not weak, not a oneof, not an extension. Can be required, optional or repeated.
-type simpleField struct {
-	fieldCommon
-	protoTypeName string                               // Proto type name, empty if primitive, e.g. ".google.protobuf.Duration"
-	protoType     descriptor.FieldDescriptorProto_Type // Actual type enum value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64
-	deprecated    string                               // Deprecation comment, if any, e.g. "// Deprecated: Do not use."
-	getterDef     string                               // Default for getters, e.g. "nil", `""` or "Default_MessageType_FieldName"
-	protoDef      string                               // Default value as defined in the proto file, e.g "yoshi" or "5"
-	comment       string                               // The full comment for the field, e.g. "// Useful information"
-}
-
-// decl prints the declaration of the field in the struct (if any).
-func (f *simpleField) decl(g *Generator, mc *msgCtx) {
-	g.P(f.comment, Annotate(mc.message.file, f.fullPath, f.goName), "\t", f.goType, "\t`", f.tags, "`", f.deprecated)
-}
-
-// getter prints the getter for the field.
-func (f *simpleField) getter(g *Generator, mc *msgCtx) {
-	star := ""
-	tname := f.goType
-	if needsStar(f.protoType) && tname[0] == '*' {
-		tname = tname[1:]
-		star = "*"
-	}
-	if f.deprecated != "" {
-		g.P(f.deprecated)
-	}
-	g.P("func (m *", mc.goName, ") ", Annotate(mc.message.file, f.fullPath, f.getterName), "() "+tname+" {")
-	if f.getterDef == "nil" { // Simpler getter
-		g.P("if m != nil {")
-		g.P("return m." + f.goName)
-		g.P("}")
-		g.P("return nil")
-		g.P("}")
-		g.P()
-		return
-	}
-	if mc.message.proto3() {
-		g.P("if m != nil {")
-	} else {
-		g.P("if m != nil && m." + f.goName + " != nil {")
-	}
-	g.P("return " + star + "m." + f.goName)
-	g.P("}")
-	g.P("return ", f.getterDef)
-	g.P("}")
-	g.P()
-}
-
-// setter prints the setter method of the field.
-func (f *simpleField) setter(g *Generator, mc *msgCtx) {
-	// No setter for regular fields yet
-}
-
-// getProtoDef returns the default value explicitly stated in the proto file, e.g "yoshi" or "5".
-func (f *simpleField) getProtoDef() string {
-	return f.protoDef
-}
-
-// getProtoTypeName returns the protobuf type name for the field as returned by field.GetTypeName(), e.g. ".google.protobuf.Duration".
-func (f *simpleField) getProtoTypeName() string {
-	return f.protoTypeName
-}
-
-// getProtoType returns the *field.Type value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64.
-func (f *simpleField) getProtoType() descriptor.FieldDescriptorProto_Type {
-	return f.protoType
-}
-
-// oneofSubFields are kept slize held by each oneofField. They do not appear in the top level slize of fields for the message.
-type oneofSubField struct {
-	fieldCommon
-	protoTypeName string                               // Proto type name, empty if primitive, e.g. ".google.protobuf.Duration"
-	protoType     descriptor.FieldDescriptorProto_Type // Actual type enum value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64
-	oneofTypeName string                               // Type name of the enclosing struct, e.g. "MessageName_FieldName"
-	fieldNumber   int                                  // Actual field number, as defined in proto, e.g. 12
-	getterDef     string                               // Default for getters, e.g. "nil", `""` or "Default_MessageType_FieldName"
-	protoDef      string                               // Default value as defined in the proto file, e.g "yoshi" or "5"
-	deprecated    string                               // Deprecation comment, if any.
-}
-
-// typedNil prints a nil casted to the pointer to this field.
-// - for XXX_OneofWrappers
-func (f *oneofSubField) typedNil(g *Generator) {
-	g.P("(*", f.oneofTypeName, ")(nil),")
-}
-
-// getProtoDef returns the default value explicitly stated in the proto file, e.g "yoshi" or "5".
-func (f *oneofSubField) getProtoDef() string {
-	return f.protoDef
-}
-
-// getProtoTypeName returns the protobuf type name for the field as returned by field.GetTypeName(), e.g. ".google.protobuf.Duration".
-func (f *oneofSubField) getProtoTypeName() string {
-	return f.protoTypeName
-}
-
-// getProtoType returns the *field.Type value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64.
-func (f *oneofSubField) getProtoType() descriptor.FieldDescriptorProto_Type {
-	return f.protoType
-}
-
-// oneofField represents the oneof on top level.
-// The alternative fields within the oneof are represented by oneofSubField.
-type oneofField struct {
-	fieldCommon
-	subFields []*oneofSubField // All the possible oneof fields
-	comment   string           // The full comment for the field, e.g. "// Types that are valid to be assigned to MyOneof:\n\\"
-}
-
-// decl prints the declaration of the field in the struct (if any).
-func (f *oneofField) decl(g *Generator, mc *msgCtx) {
-	comment := f.comment
-	for _, sf := range f.subFields {
-		comment += "//\t*" + sf.oneofTypeName + "\n"
-	}
-	g.P(comment, Annotate(mc.message.file, f.fullPath, f.goName), " ", f.goType, " `", f.tags, "`")
-}
-
-// getter for a oneof field will print additional discriminators and interfaces for the oneof,
-// also it prints all the getters for the sub fields.
-func (f *oneofField) getter(g *Generator, mc *msgCtx) {
-	// The discriminator type
-	g.P("type ", f.goType, " interface {")
-	g.P(f.goType, "()")
-	g.P("}")
-	g.P()
-	// The subField types, fulfilling the discriminator type contract
-	for _, sf := range f.subFields {
-		g.P("type ", Annotate(mc.message.file, sf.fullPath, sf.oneofTypeName), " struct {")
-		g.P(Annotate(mc.message.file, sf.fullPath, sf.goName), " ", sf.goType, " `", sf.tags, "`")
-		g.P("}")
-		g.P()
-	}
-	for _, sf := range f.subFields {
-		g.P("func (*", sf.oneofTypeName, ") ", f.goType, "() {}")
-		g.P()
-	}
-	// Getter for the oneof field
-	g.P("func (m *", mc.goName, ") ", Annotate(mc.message.file, f.fullPath, f.getterName), "() ", f.goType, " {")
-	g.P("if m != nil { return m.", f.goName, " }")
-	g.P("return nil")
-	g.P("}")
-	g.P()
-	// Getters for each oneof
-	for _, sf := range f.subFields {
-		if sf.deprecated != "" {
-			g.P(sf.deprecated)
-		}
-		g.P("func (m *", mc.goName, ") ", Annotate(mc.message.file, sf.fullPath, sf.getterName), "() "+sf.goType+" {")
-		g.P("if x, ok := m.", f.getterName, "().(*", sf.oneofTypeName, "); ok {")
-		g.P("return x.", sf.goName)
-		g.P("}")
-		g.P("return ", sf.getterDef)
-		g.P("}")
-		g.P()
-	}
-}
-
-// setter prints the setter method of the field.
-func (f *oneofField) setter(g *Generator, mc *msgCtx) {
-	// No setters for oneof yet
-}
-
-// topLevelField interface implemented by all types of fields on the top level (not oneofSubField).
-type topLevelField interface {
-	decl(g *Generator, mc *msgCtx)   // print declaration within the struct
-	getter(g *Generator, mc *msgCtx) // print getter
-	setter(g *Generator, mc *msgCtx) // print setter if applicable
-}
-
-// defField interface implemented by all types of fields that can have defaults (not oneofField, but instead oneofSubField).
-type defField interface {
-	getProtoDef() string                                // default value explicitly stated in the proto file, e.g "yoshi" or "5"
-	getProtoName() string                               // proto name of a field, e.g. "field_name" or "descriptor"
-	getGoType() string                                  // go type of the field  as a string, e.g. "*int32"
-	getProtoTypeName() string                           // protobuf type name for the field, e.g. ".google.protobuf.Duration"
-	getProtoType() descriptor.FieldDescriptorProto_Type // *field.Type value, e.g. descriptor.FieldDescriptorProto_TYPE_FIXED64
-}
-
-// generateDefaultConstants adds constants for default values if needed, which is only if the default value is.
-// explicit in the proto.
-func (g *Generator) generateDefaultConstants(mc *msgCtx, topLevelFields []topLevelField) {
-	// Collect fields that can have defaults
-	dFields := []defField{}
-	for _, pf := range topLevelFields {
-		if f, ok := pf.(*oneofField); ok {
-			for _, osf := range f.subFields {
-				dFields = append(dFields, osf)
-			}
-			continue
-		}
-		dFields = append(dFields, pf.(defField))
-	}
-	for _, df := range dFields {
-		def := df.getProtoDef()
-		if def == "" {
-			continue
-		}
-		fieldname := g.defaultConstantName(mc.goName, df.getProtoName())
-		typename := df.getGoType()
-		if typename[0] == '*' {
-			typename = typename[1:]
-		}
-		kind := "const "
-		switch {
-		case typename == "bool":
-		case typename == "string":
-			def = strconv.Quote(def)
-		case typename == "[]byte":
-			def = "[]byte(" + strconv.Quote(unescape(def)) + ")"
-			kind = "var "
-		case def == "inf", def == "-inf", def == "nan":
-			// These names are known to, and defined by, the protocol language.
-			switch def {
-			case "inf":
-				def = "math.Inf(1)"
-			case "-inf":
-				def = "math.Inf(-1)"
-			case "nan":
-				def = "math.NaN()"
-			}
-			if df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_FLOAT {
-				def = "float32(" + def + ")"
-			}
-			kind = "var "
-		case df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_FLOAT:
-			if f, err := strconv.ParseFloat(def, 32); err == nil {
-				def = fmt.Sprint(float32(f))
-			}
-		case df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_DOUBLE:
-			if f, err := strconv.ParseFloat(def, 64); err == nil {
-				def = fmt.Sprint(f)
-			}
-		case df.getProtoType() == descriptor.FieldDescriptorProto_TYPE_ENUM:
-			// Must be an enum.  Need to construct the prefixed name.
-			obj := g.ObjectNamed(df.getProtoTypeName())
-			var enum *EnumDescriptor
-			if id, ok := obj.(*ImportedDescriptor); ok {
-				// The enum type has been publicly imported.
-				enum, _ = id.o.(*EnumDescriptor)
-			} else {
-				enum, _ = obj.(*EnumDescriptor)
-			}
-			if enum == nil {
-				log.Printf("don't know how to generate constant for %s", fieldname)
-				continue
-			}
-			def = g.DefaultPackageName(obj) + enum.prefix() + def
-		}
-		g.P(kind, fieldname, " ", typename, " = ", def)
-		g.file.addExport(mc.message, constOrVarSymbol{fieldname, kind, ""})
-	}
-	g.P()
-}
-
-// generateInternalStructFields just adds the XXX_<something> fields to the message struct.
-func (g *Generator) generateInternalStructFields(mc *msgCtx, topLevelFields []topLevelField) {
-	g.P("XXX_NoUnkeyedLiteral\tstruct{} `json:\"-\"`") // prevent unkeyed struct literals
-	if len(mc.message.ExtensionRange) > 0 {
-		messageset := ""
-		if opts := mc.message.Options; opts != nil && opts.GetMessageSetWireFormat() {
-			messageset = "protobuf_messageset:\"1\" "
-		}
-		g.P(g.Pkg["proto"], ".XXX_InternalExtensions `", messageset, "json:\"-\"`")
-	}
-	g.P("XXX_unrecognized\t[]byte `json:\"-\"`")
-	g.P("XXX_sizecache\tint32 `json:\"-\"`")
-
-}
-
-// generateOneofFuncs adds all the utility functions for oneof, including marshalling, unmarshalling and sizer.
-func (g *Generator) generateOneofFuncs(mc *msgCtx, topLevelFields []topLevelField) {
-	ofields := []*oneofField{}
-	for _, f := range topLevelFields {
-		if o, ok := f.(*oneofField); ok {
-			ofields = append(ofields, o)
-		}
-	}
-	if len(ofields) == 0 {
-		return
-	}
-
-	// OneofFuncs
-	g.P("// XXX_OneofWrappers is for the internal use of the proto package.")
-	g.P("func (*", mc.goName, ") XXX_OneofWrappers() []interface{} {")
-	g.P("return []interface{}{")
-	for _, of := range ofields {
-		for _, sf := range of.subFields {
-			sf.typedNil(g)
-		}
-	}
-	g.P("}")
-	g.P("}")
-	g.P()
-}
-
-// generateMessageStruct adds the actual struct with it's members (but not methods) to the output.
-func (g *Generator) generateMessageStruct(mc *msgCtx, topLevelFields []topLevelField) {
-	comments := g.PrintComments(mc.message.path)
-
-	// Guarantee deprecation comments appear after user-provided comments.
-	if mc.message.GetOptions().GetDeprecated() {
-		if comments {
-			// Convention: Separate deprecation comments from original
-			// comments with an empty line.
-			g.P("//")
-		}
-		g.P(deprecationComment)
-	}
-
-	g.P("type ", Annotate(mc.message.file, mc.message.path, mc.goName), " struct {")
-	for _, pf := range topLevelFields {
-		pf.decl(g, mc)
-	}
-	g.generateInternalStructFields(mc, topLevelFields)
-	g.P("}")
-}
-
-// generateGetters adds getters for all fields, including oneofs and weak fields when applicable.
-func (g *Generator) generateGetters(mc *msgCtx, topLevelFields []topLevelField) {
-	for _, pf := range topLevelFields {
-		pf.getter(g, mc)
-	}
-}
-
-// generateSetters add setters for all fields, including oneofs and weak fields when applicable.
-func (g *Generator) generateSetters(mc *msgCtx, topLevelFields []topLevelField) {
-	for _, pf := range topLevelFields {
-		pf.setter(g, mc)
-	}
-}
-
-// generateCommonMethods adds methods to the message that are not on a per field basis.
-func (g *Generator) generateCommonMethods(mc *msgCtx) {
-	// Reset, String and ProtoMessage methods.
-	g.P("func (m *", mc.goName, ") Reset() { *m = ", mc.goName, "{} }")
-	g.P("func (m *", mc.goName, ") String() string { return ", g.Pkg["proto"], ".CompactTextString(m) }")
-	g.P("func (*", mc.goName, ") ProtoMessage() {}")
-	var indexes []string
-	for m := mc.message; m != nil; m = m.parent {
-		indexes = append([]string{strconv.Itoa(m.index)}, indexes...)
-	}
-	g.P("func (*", mc.goName, ") Descriptor() ([]byte, []int) {")
-	g.P("return ", g.file.VarName(), ", []int{", strings.Join(indexes, ", "), "}")
-	g.P("}")
-	g.P()
-	// TODO: Revisit the decision to use a XXX_WellKnownType method
-	// if we change proto.MessageName to work with multiple equivalents.
-	if mc.message.file.GetPackage() == "google.protobuf" && wellKnownTypes[mc.message.GetName()] {
-		g.P("func (*", mc.goName, `) XXX_WellKnownType() string { return "`, mc.message.GetName(), `" }`)
-		g.P()
-	}
-
-	// Extension support methods
-	if len(mc.message.ExtensionRange) > 0 {
-		g.P()
-		g.P("var extRange_", mc.goName, " = []", g.Pkg["proto"], ".ExtensionRange{")
-		for _, r := range mc.message.ExtensionRange {
-			end := fmt.Sprint(*r.End - 1) // make range inclusive on both ends
-			g.P("{Start: ", r.Start, ", End: ", end, "},")
-		}
-		g.P("}")
-		g.P("func (*", mc.goName, ") ExtensionRangeArray() []", g.Pkg["proto"], ".ExtensionRange {")
-		g.P("return extRange_", mc.goName)
-		g.P("}")
-		g.P()
-	}
-
-	// TODO: It does not scale to keep adding another method for every
-	// operation on protos that we want to switch over to using the
-	// table-driven approach. Instead, we should only add a single method
-	// that allows getting access to the *InternalMessageInfo struct and then
-	// calling Unmarshal, Marshal, Merge, Size, and Discard directly on that.
-
-	// Wrapper for table-driven marshaling and unmarshaling.
-	g.P("func (m *", mc.goName, ") XXX_Unmarshal(b []byte) error {")
-	g.P("return xxx_messageInfo_", mc.goName, ".Unmarshal(m, b)")
-	g.P("}")
-
-	g.P("func (m *", mc.goName, ") XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {")
-	g.P("return xxx_messageInfo_", mc.goName, ".Marshal(b, m, deterministic)")
-	g.P("}")
-
-	g.P("func (m *", mc.goName, ") XXX_Merge(src ", g.Pkg["proto"], ".Message) {")
-	g.P("xxx_messageInfo_", mc.goName, ".Merge(m, src)")
-	g.P("}")
-
-	g.P("func (m *", mc.goName, ") XXX_Size() int {") // avoid name clash with "Size" field in some message
-	g.P("return xxx_messageInfo_", mc.goName, ".Size(m)")
-	g.P("}")
-
-	g.P("func (m *", mc.goName, ") XXX_DiscardUnknown() {")
-	g.P("xxx_messageInfo_", mc.goName, ".DiscardUnknown(m)")
-	g.P("}")
-
-	g.P("var xxx_messageInfo_", mc.goName, " ", g.Pkg["proto"], ".InternalMessageInfo")
-	g.P()
-}
-
-// Generate the type, methods and default constant definitions for this Descriptor.
-func (g *Generator) generateMessage(message *Descriptor) {
-	topLevelFields := []topLevelField{}
-	oFields := make(map[int32]*oneofField)
-	// The full type name
-	typeName := message.TypeName()
-	// The full type name, CamelCased.
-	goTypeName := CamelCaseSlice(typeName)
-
-	usedNames := make(map[string]bool)
-	for _, n := range methodNames {
-		usedNames[n] = true
-	}
-
-	// allocNames finds a conflict-free variation of the given strings,
-	// consistently mutating their suffixes.
-	// It returns the same number of strings.
-	allocNames := func(ns ...string) []string {
-	Loop:
-		for {
-			for _, n := range ns {
-				if usedNames[n] {
-					for i := range ns {
-						ns[i] += "_"
-					}
-					continue Loop
-				}
-			}
-			for _, n := range ns {
-				usedNames[n] = true
-			}
-			return ns
-		}
-	}
-
-	mapFieldTypes := make(map[*descriptor.FieldDescriptorProto]string) // keep track of the map fields to be added later
-
-	// Build a structure more suitable for generating the text in one pass
-	for i, field := range message.Field {
-		// Allocate the getter and the field at the same time so name
-		// collisions create field/method consistent names.
-		// TODO: This allocation occurs based on the order of the fields
-		// in the proto file, meaning that a change in the field
-		// ordering can change generated Method/Field names.
-		base := CamelCase(*field.Name)
-		ns := allocNames(base, "Get"+base)
-		fieldName, fieldGetterName := ns[0], ns[1]
-		typename, wiretype := g.GoType(message, field)
-		jsonName := *field.Name
-		tag := fmt.Sprintf("protobuf:%s json:%q", g.goTag(message, field, wiretype), jsonName+",omitempty")
-
-		oneof := field.OneofIndex != nil
-		if oneof && oFields[*field.OneofIndex] == nil {
-			odp := message.OneofDecl[int(*field.OneofIndex)]
-			base := CamelCase(odp.GetName())
-			fname := allocNames(base)[0]
-
-			// This is the first field of a oneof we haven't seen before.
-			// Generate the union field.
-			oneofFullPath := fmt.Sprintf("%s,%d,%d", message.path, messageOneofPath, *field.OneofIndex)
-			c, ok := g.makeComments(oneofFullPath)
-			if ok {
-				c += "\n//\n"
-			}
-			c += "// Types that are valid to be assigned to " + fname + ":\n"
-			// Generate the rest of this comment later,
-			// when we've computed any disambiguation.
-
-			dname := "is" + goTypeName + "_" + fname
-			tag := `protobuf_oneof:"` + odp.GetName() + `"`
-			of := oneofField{
-				fieldCommon: fieldCommon{
-					goName:     fname,
-					getterName: "Get"+fname,
-					goType:     dname,
-					tags:       tag,
-					protoName:  odp.GetName(),
-					fullPath:   oneofFullPath,
-				},
-				comment: c,
-			}
-			topLevelFields = append(topLevelFields, &of)
-			oFields[*field.OneofIndex] = &of
-		}
-
-		if *field.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE {
-			desc := g.ObjectNamed(field.GetTypeName())
-			if d, ok := desc.(*Descriptor); ok && d.GetOptions().GetMapEntry() {
-				// Figure out the Go types and tags for the key and value types.
-				keyField, valField := d.Field[0], d.Field[1]
-				keyType, keyWire := g.GoType(d, keyField)
-				valType, valWire := g.GoType(d, valField)
-				keyTag, valTag := g.goTag(d, keyField, keyWire), g.goTag(d, valField, valWire)
-
-				// We don't use stars, except for message-typed values.
-				// Message and enum types are the only two possibly foreign types used in maps,
-				// so record their use. They are not permitted as map keys.
-				keyType = strings.TrimPrefix(keyType, "*")
-				switch *valField.Type {
-				case descriptor.FieldDescriptorProto_TYPE_ENUM:
-					valType = strings.TrimPrefix(valType, "*")
-					g.RecordTypeUse(valField.GetTypeName())
-				case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
-					g.RecordTypeUse(valField.GetTypeName())
-				default:
-					valType = strings.TrimPrefix(valType, "*")
-				}
-
-				typename = fmt.Sprintf("map[%s]%s", keyType, valType)
-				mapFieldTypes[field] = typename // record for the getter generation
-
-				tag += fmt.Sprintf(" protobuf_key:%s protobuf_val:%s", keyTag, valTag)
-			}
-		}
-
-		fieldDeprecated := ""
-		if field.GetOptions().GetDeprecated() {
-			fieldDeprecated = deprecationComment
-		}
-
-		dvalue := g.getterDefault(field, goTypeName)
-		if oneof {
-			tname := goTypeName + "_" + fieldName
-			// It is possible for this to collide with a message or enum
-			// nested in this message. Check for collisions.
-			for {
-				ok := true
-				for _, desc := range message.nested {
-					if CamelCaseSlice(desc.TypeName()) == tname {
-						ok = false
-						break
-					}
-				}
-				for _, enum := range message.enums {
-					if CamelCaseSlice(enum.TypeName()) == tname {
-						ok = false
-						break
-					}
-				}
-				if !ok {
-					tname += "_"
-					continue
-				}
-				break
-			}
-
-			oneofField := oFields[*field.OneofIndex]
-			tag := "protobuf:" + g.goTag(message, field, wiretype)
-			sf := oneofSubField{
-				fieldCommon: fieldCommon{
-					goName:     fieldName,
-					getterName: fieldGetterName,
-					goType:     typename,
-					tags:       tag,
-					protoName:  field.GetName(),
-					fullPath:   fmt.Sprintf("%s,%d,%d", message.path, messageFieldPath, i),
-				},
-				protoTypeName: field.GetTypeName(),
-				fieldNumber:   int(*field.Number),
-				protoType:     *field.Type,
-				getterDef:     dvalue,
-				protoDef:      field.GetDefaultValue(),
-				oneofTypeName: tname,
-				deprecated:    fieldDeprecated,
-			}
-			oneofField.subFields = append(oneofField.subFields, &sf)
-			g.RecordTypeUse(field.GetTypeName())
-			continue
-		}
-
-		fieldFullPath := fmt.Sprintf("%s,%d,%d", message.path, messageFieldPath, i)
-		c, ok := g.makeComments(fieldFullPath)
-		if ok {
-			c += "\n"
-		}
-		rf := simpleField{
-			fieldCommon: fieldCommon{
-				goName:     fieldName,
-				getterName: fieldGetterName,
-				goType:     typename,
-				tags:       tag,
-				protoName:  field.GetName(),
-				fullPath:   fieldFullPath,
-			},
-			protoTypeName: field.GetTypeName(),
-			protoType:     *field.Type,
-			deprecated:    fieldDeprecated,
-			getterDef:     dvalue,
-			protoDef:      field.GetDefaultValue(),
-			comment:       c,
-		}
-		var pf topLevelField = &rf
-
-		topLevelFields = append(topLevelFields, pf)
-		g.RecordTypeUse(field.GetTypeName())
-	}
-
-	mc := &msgCtx{
-		goName:  goTypeName,
-		message: message,
-	}
-
-	g.generateMessageStruct(mc, topLevelFields)
-	g.P()
-	g.generateCommonMethods(mc)
-	g.P()
-	g.generateDefaultConstants(mc, topLevelFields)
-	g.P()
-	g.generateGetters(mc, topLevelFields)
-	g.P()
-	g.generateSetters(mc, topLevelFields)
-	g.P()
-	g.generateOneofFuncs(mc, topLevelFields)
-	g.P()
-
-	var oneofTypes []string
-	for _, f := range topLevelFields {
-		if of, ok := f.(*oneofField); ok {
-			for _, osf := range of.subFields {
-				oneofTypes = append(oneofTypes, osf.oneofTypeName)
-			}
-		}
-	}
-
-	opts := message.Options
-	ms := &messageSymbol{
-		sym:           goTypeName,
-		hasExtensions: len(message.ExtensionRange) > 0,
-		isMessageSet:  opts != nil && opts.GetMessageSetWireFormat(),
-		oneofTypes:    oneofTypes,
-	}
-	g.file.addExport(message, ms)
-
-	for _, ext := range message.ext {
-		g.generateExtension(ext)
-	}
-
-	fullName := strings.Join(message.TypeName(), ".")
-	if g.file.Package != nil {
-		fullName = *g.file.Package + "." + fullName
-	}
-
-	g.addInitf("%s.RegisterType((*%s)(nil), %q)", g.Pkg["proto"], goTypeName, fullName)
-	// Register types for native map types.
-	for _, k := range mapFieldKeys(mapFieldTypes) {
-		fullName := strings.TrimPrefix(*k.TypeName, ".")
-		g.addInitf("%s.RegisterMapType((%s)(nil), %q)", g.Pkg["proto"], mapFieldTypes[k], fullName)
-	}
-
-}
-
-type byTypeName []*descriptor.FieldDescriptorProto
-
-func (a byTypeName) Len() int           { return len(a) }
-func (a byTypeName) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a byTypeName) Less(i, j int) bool { return *a[i].TypeName < *a[j].TypeName }
-
-// mapFieldKeys returns the keys of m in a consistent order.
-func mapFieldKeys(m map[*descriptor.FieldDescriptorProto]string) []*descriptor.FieldDescriptorProto {
-	keys := make([]*descriptor.FieldDescriptorProto, 0, len(m))
-	for k := range m {
-		keys = append(keys, k)
-	}
-	sort.Sort(byTypeName(keys))
-	return keys
-}
-
-var escapeChars = [256]byte{
-	'a': '\a', 'b': '\b', 'f': '\f', 'n': '\n', 'r': '\r', 't': '\t', 'v': '\v', '\\': '\\', '"': '"', '\'': '\'', '?': '?',
-}
-
-// unescape reverses the "C" escaping that protoc does for default values of bytes fields.
-// It is best effort in that it effectively ignores malformed input. Seemingly invalid escape
-// sequences are conveyed, unmodified, into the decoded result.
-func unescape(s string) string {
-	// NB: Sadly, we can't use strconv.Unquote because protoc will escape both
-	// single and double quotes, but strconv.Unquote only allows one or the
-	// other (based on actual surrounding quotes of its input argument).
-
-	var out []byte
-	for len(s) > 0 {
-		// regular character, or too short to be valid escape
-		if s[0] != '\\' || len(s) < 2 {
-			out = append(out, s[0])
-			s = s[1:]
-		} else if c := escapeChars[s[1]]; c != 0 {
-			// escape sequence
-			out = append(out, c)
-			s = s[2:]
-		} else if s[1] == 'x' || s[1] == 'X' {
-			// hex escape, e.g. "\x80
-			if len(s) < 4 {
-				// too short to be valid
-				out = append(out, s[:2]...)
-				s = s[2:]
-				continue
-			}
-			v, err := strconv.ParseUint(s[2:4], 16, 8)
-			if err != nil {
-				out = append(out, s[:4]...)
-			} else {
-				out = append(out, byte(v))
-			}
-			s = s[4:]
-		} else if '0' <= s[1] && s[1] <= '7' {
-			// octal escape, can vary from 1 to 3 octal digits; e.g., "\0" "\40" or "\164"
-			// so consume up to 2 more bytes or up to end-of-string
-			n := len(s[1:]) - len(strings.TrimLeft(s[1:], "01234567"))
-			if n > 3 {
-				n = 3
-			}
-			v, err := strconv.ParseUint(s[1:1+n], 8, 8)
-			if err != nil {
-				out = append(out, s[:1+n]...)
-			} else {
-				out = append(out, byte(v))
-			}
-			s = s[1+n:]
-		} else {
-			// bad escape, just propagate the slash as-is
-			out = append(out, s[0])
-			s = s[1:]
-		}
-	}
-
-	return string(out)
-}
-
-func (g *Generator) generateExtension(ext *ExtensionDescriptor) {
-	ccTypeName := ext.DescName()
-
-	extObj := g.ObjectNamed(*ext.Extendee)
-	var extDesc *Descriptor
-	if id, ok := extObj.(*ImportedDescriptor); ok {
-		// This is extending a publicly imported message.
-		// We need the underlying type for goTag.
-		extDesc = id.o.(*Descriptor)
-	} else {
-		extDesc = extObj.(*Descriptor)
-	}
-	extendedType := "*" + g.TypeName(extObj) // always use the original
-	field := ext.FieldDescriptorProto
-	fieldType, wireType := g.GoType(ext.parent, field)
-	tag := g.goTag(extDesc, field, wireType)
-	g.RecordTypeUse(*ext.Extendee)
-	if n := ext.FieldDescriptorProto.TypeName; n != nil {
-		// foreign extension type
-		g.RecordTypeUse(*n)
-	}
-
-	typeName := ext.TypeName()
-
-	// Special case for proto2 message sets: If this extension is extending
-	// proto2.bridge.MessageSet, and its final name component is "message_set_extension",
-	// then drop that last component.
-	//
-	// TODO: This should be implemented in the text formatter rather than the generator.
-	// In addition, the situation for when to apply this special case is implemented
-	// differently in other languages:
-	// https://github.com/google/protobuf/blob/aff10976/src/google/protobuf/text_format.cc#L1560
-	if extDesc.GetOptions().GetMessageSetWireFormat() && typeName[len(typeName)-1] == "message_set_extension" {
-		typeName = typeName[:len(typeName)-1]
-	}
-
-	// For text formatting, the package must be exactly what the .proto file declares,
-	// ignoring overrides such as the go_package option, and with no dot/underscore mapping.
-	extName := strings.Join(typeName, ".")
-	if g.file.Package != nil {
-		extName = *g.file.Package + "." + extName
-	}
-
-	g.P("var ", ccTypeName, " = &", g.Pkg["proto"], ".ExtensionDesc{")
-	g.P("ExtendedType: (", extendedType, ")(nil),")
-	g.P("ExtensionType: (", fieldType, ")(nil),")
-	g.P("Field: ", field.Number, ",")
-	g.P(`Name: "`, extName, `",`)
-	g.P("Tag: ", tag, ",")
-	g.P(`Filename: "`, g.file.GetName(), `",`)
-
-	g.P("}")
-	g.P()
-
-	g.addInitf("%s.RegisterExtension(%s)", g.Pkg["proto"], ext.DescName())
-
-	g.file.addExport(ext, constOrVarSymbol{ccTypeName, "var", ""})
-}
-
-func (g *Generator) generateInitFunction() {
-	if len(g.init) == 0 {
-		return
-	}
-	g.P("func init() {")
-	for _, l := range g.init {
-		g.P(l)
-	}
-	g.P("}")
-	g.init = nil
-}
-
-func (g *Generator) generateFileDescriptor(file *FileDescriptor) {
-	// Make a copy and trim source_code_info data.
-	// TODO: Trim this more when we know exactly what we need.
-	pb := proto.Clone(file.FileDescriptorProto).(*descriptor.FileDescriptorProto)
-	pb.SourceCodeInfo = nil
-
-	b, err := proto.Marshal(pb)
-	if err != nil {
-		g.Fail(err.Error())
-	}
-
-	var buf bytes.Buffer
-	w, _ := gzip.NewWriterLevel(&buf, gzip.BestCompression)
-	w.Write(b)
-	w.Close()
-	b = buf.Bytes()
-
-	v := file.VarName()
-	g.P()
-	g.P("func init() { ", g.Pkg["proto"], ".RegisterFile(", strconv.Quote(*file.Name), ", ", v, ") }")
-	g.P("var ", v, " = []byte{")
-	g.P("// ", len(b), " bytes of a gzipped FileDescriptorProto")
-	for len(b) > 0 {
-		n := 16
-		if n > len(b) {
-			n = len(b)
-		}
-
-		s := ""
-		for _, c := range b[:n] {
-			s += fmt.Sprintf("0x%02x,", c)
-		}
-		g.P(s)
-
-		b = b[n:]
-	}
-	g.P("}")
-}
-
-func (g *Generator) generateEnumRegistration(enum *EnumDescriptor) {
-	// // We always print the full (proto-world) package name here.
-	pkg := enum.File().GetPackage()
-	if pkg != "" {
-		pkg += "."
-	}
-	// The full type name
-	typeName := enum.TypeName()
-	// The full type name, CamelCased.
-	ccTypeName := CamelCaseSlice(typeName)
-	g.addInitf("%s.RegisterEnum(%q, %[3]s_name, %[3]s_value)", g.Pkg["proto"], pkg+ccTypeName, ccTypeName)
-}
-
-// And now lots of helper functions.
-
-// Is c an ASCII lower-case letter?
-func isASCIILower(c byte) bool {
-	return 'a' <= c && c <= 'z'
-}
-
-// Is c an ASCII digit?
-func isASCIIDigit(c byte) bool {
-	return '0' <= c && c <= '9'
-}
-
-// CamelCase returns the CamelCased name.
-// If there is an interior underscore followed by a lower case letter,
-// drop the underscore and convert the letter to upper case.
-// There is a remote possibility of this rewrite causing a name collision,
-// but it's so remote we're prepared to pretend it's nonexistent - since the
-// C++ generator lowercases names, it's extremely unlikely to have two fields
-// with different capitalizations.
-// In short, _my_field_name_2 becomes XMyFieldName_2.
-func CamelCase(s string) string {
-	if s == "" {
-		return ""
-	}
-	t := make([]byte, 0, 32)
-	i := 0
-	if s[0] == '_' {
-		// Need a capital letter; drop the '_'.
-		t = append(t, 'X')
-		i++
-	}
-	// Invariant: if the next letter is lower case, it must be converted
-	// to upper case.
-	// That is, we process a word at a time, where words are marked by _ or
-	// upper case letter. Digits are treated as words.
-	for ; i < len(s); i++ {
-		c := s[i]
-		if c == '_' && i+1 < len(s) && isASCIILower(s[i+1]) {
-			continue // Skip the underscore in s.
-		}
-		if isASCIIDigit(c) {
-			t = append(t, c)
-			continue
-		}
-		// Assume we have a letter now - if not, it's a bogus identifier.
-		// The next word is a sequence of characters that must start upper case.
-		if isASCIILower(c) {
-			c ^= ' ' // Make it a capital letter.
-		}
-		t = append(t, c) // Guaranteed not lower case.
-		// Accept lower case sequence that follows.
-		for i+1 < len(s) && isASCIILower(s[i+1]) {
-			i++
-			t = append(t, s[i])
-		}
-	}
-	return string(t)
-}
-
-// CamelCaseSlice is like CamelCase, but the argument is a slice of strings to
-// be joined with "_".
-func CamelCaseSlice(elem []string) string { return CamelCase(strings.Join(elem, "_")) }
-
-// dottedSlice turns a sliced name into a dotted name.
-func dottedSlice(elem []string) string { return strings.Join(elem, ".") }
-
-// Is this field optional?
-func isOptional(field *descriptor.FieldDescriptorProto) bool {
-	return field.Label != nil && *field.Label == descriptor.FieldDescriptorProto_LABEL_OPTIONAL
-}
-
-// Is this field required?
-func isRequired(field *descriptor.FieldDescriptorProto) bool {
-	return field.Label != nil && *field.Label == descriptor.FieldDescriptorProto_LABEL_REQUIRED
-}
-
-// Is this field repeated?
-func isRepeated(field *descriptor.FieldDescriptorProto) bool {
-	return field.Label != nil && *field.Label == descriptor.FieldDescriptorProto_LABEL_REPEATED
-}
-
-// Is this field a scalar numeric type?
-func isScalar(field *descriptor.FieldDescriptorProto) bool {
-	if field.Type == nil {
-		return false
-	}
-	switch *field.Type {
-	case descriptor.FieldDescriptorProto_TYPE_DOUBLE,
-		descriptor.FieldDescriptorProto_TYPE_FLOAT,
-		descriptor.FieldDescriptorProto_TYPE_INT64,
-		descriptor.FieldDescriptorProto_TYPE_UINT64,
-		descriptor.FieldDescriptorProto_TYPE_INT32,
-		descriptor.FieldDescriptorProto_TYPE_FIXED64,
-		descriptor.FieldDescriptorProto_TYPE_FIXED32,
-		descriptor.FieldDescriptorProto_TYPE_BOOL,
-		descriptor.FieldDescriptorProto_TYPE_UINT32,
-		descriptor.FieldDescriptorProto_TYPE_ENUM,
-		descriptor.FieldDescriptorProto_TYPE_SFIXED32,
-		descriptor.FieldDescriptorProto_TYPE_SFIXED64,
-		descriptor.FieldDescriptorProto_TYPE_SINT32,
-		descriptor.FieldDescriptorProto_TYPE_SINT64:
-		return true
-	default:
-		return false
-	}
-}
-
-// badToUnderscore is the mapping function used to generate Go names from package names,
-// which can be dotted in the input .proto file.  It replaces non-identifier characters such as
-// dot or dash with underscore.
-func badToUnderscore(r rune) rune {
-	if unicode.IsLetter(r) || unicode.IsDigit(r) || r == '_' {
-		return r
-	}
-	return '_'
-}
-
-// baseName returns the last path element of the name, with the last dotted suffix removed.
-func baseName(name string) string {
-	// First, find the last element
-	if i := strings.LastIndex(name, "/"); i >= 0 {
-		name = name[i+1:]
-	}
-	// Now drop the suffix
-	if i := strings.LastIndex(name, "."); i >= 0 {
-		name = name[0:i]
-	}
-	return name
-}
-
-// The SourceCodeInfo message describes the location of elements of a parsed
-// .proto file by way of a "path", which is a sequence of integers that
-// describe the route from a FileDescriptorProto to the relevant submessage.
-// The path alternates between a field number of a repeated field, and an index
-// into that repeated field. The constants below define the field numbers that
-// are used.
-//
-// See descriptor.proto for more information about this.
-const (
-	// tag numbers in FileDescriptorProto
-	packagePath = 2 // package
-	messagePath = 4 // message_type
-	enumPath    = 5 // enum_type
-	// tag numbers in DescriptorProto
-	messageFieldPath   = 2 // field
-	messageMessagePath = 3 // nested_type
-	messageEnumPath    = 4 // enum_type
-	messageOneofPath   = 8 // oneof_decl
-	// tag numbers in EnumDescriptorProto
-	enumValuePath = 2 // value
-)
-
-var supportTypeAliases bool
-
-func init() {
-	for _, tag := range build.Default.ReleaseTags {
-		if tag == "go1.9" {
-			supportTypeAliases = true
-			return
-		}
-	}
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/internal/remap/remap.go b/vendor/github.com/golang/protobuf/protoc-gen-go/generator/internal/remap/remap.go
deleted file mode 100644
index a9b6103..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/generator/internal/remap/remap.go
+++ /dev/null
@@ -1,117 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2017 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-/*
-Package remap handles tracking the locations of Go tokens in a source text
-across a rewrite by the Go formatter.
-*/
-package remap
-
-import (
-	"fmt"
-	"go/scanner"
-	"go/token"
-)
-
-// A Location represents a span of byte offsets in the source text.
-type Location struct {
-	Pos, End int // End is exclusive
-}
-
-// A Map represents a mapping between token locations in an input source text
-// and locations in the correspnding output text.
-type Map map[Location]Location
-
-// Find reports whether the specified span is recorded by m, and if so returns
-// the new location it was mapped to. If the input span was not found, the
-// returned location is the same as the input.
-func (m Map) Find(pos, end int) (Location, bool) {
-	key := Location{
-		Pos: pos,
-		End: end,
-	}
-	if loc, ok := m[key]; ok {
-		return loc, true
-	}
-	return key, false
-}
-
-func (m Map) add(opos, oend, npos, nend int) {
-	m[Location{Pos: opos, End: oend}] = Location{Pos: npos, End: nend}
-}
-
-// Compute constructs a location mapping from input to output.  An error is
-// reported if any of the tokens of output cannot be mapped.
-func Compute(input, output []byte) (Map, error) {
-	itok := tokenize(input)
-	otok := tokenize(output)
-	if len(itok) != len(otok) {
-		return nil, fmt.Errorf("wrong number of tokens, %d ≠ %d", len(itok), len(otok))
-	}
-	m := make(Map)
-	for i, ti := range itok {
-		to := otok[i]
-		if ti.Token != to.Token {
-			return nil, fmt.Errorf("token %d type mismatch: %s ≠ %s", i+1, ti, to)
-		}
-		m.add(ti.pos, ti.end, to.pos, to.end)
-	}
-	return m, nil
-}
-
-// tokinfo records the span and type of a source token.
-type tokinfo struct {
-	pos, end int
-	token.Token
-}
-
-func tokenize(src []byte) []tokinfo {
-	fs := token.NewFileSet()
-	var s scanner.Scanner
-	s.Init(fs.AddFile("src", fs.Base(), len(src)), src, nil, scanner.ScanComments)
-	var info []tokinfo
-	for {
-		pos, next, lit := s.Scan()
-		switch next {
-		case token.SEMICOLON:
-			continue
-		}
-		info = append(info, tokinfo{
-			pos:   int(pos - 1),
-			end:   int(pos + token.Pos(len(lit)) - 1),
-			Token: next,
-		})
-		if next == token.EOF {
-			break
-		}
-	}
-	return info
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/grpc/grpc.go b/vendor/github.com/golang/protobuf/protoc-gen-go/grpc/grpc.go
deleted file mode 100644
index 1ddfe83..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/grpc/grpc.go
+++ /dev/null
@@ -1,476 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2015 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Package grpc outputs gRPC service descriptions in Go code.
-// It runs as a plugin for the Go protocol buffer compiler plugin.
-// It is linked in to protoc-gen-go.
-package grpc
-
-import (
-	"fmt"
-	"strconv"
-	"strings"
-
-	pb "github.com/golang/protobuf/protoc-gen-go/descriptor"
-	"github.com/golang/protobuf/protoc-gen-go/generator"
-)
-
-// generatedCodeVersion indicates a version of the generated code.
-// It is incremented whenever an incompatibility between the generated code and
-// the grpc package is introduced; the generated code references
-// a constant, grpc.SupportPackageIsVersionN (where N is generatedCodeVersion).
-const generatedCodeVersion = 4
-
-// Paths for packages used by code generated in this file,
-// relative to the import_prefix of the generator.Generator.
-const (
-	contextPkgPath = "context"
-	grpcPkgPath    = "google.golang.org/grpc"
-)
-
-func init() {
-	generator.RegisterPlugin(new(grpc))
-}
-
-// grpc is an implementation of the Go protocol buffer compiler's
-// plugin architecture.  It generates bindings for gRPC support.
-type grpc struct {
-	gen *generator.Generator
-}
-
-// Name returns the name of this plugin, "grpc".
-func (g *grpc) Name() string {
-	return "grpc"
-}
-
-// The names for packages imported in the generated code.
-// They may vary from the final path component of the import path
-// if the name is used by other packages.
-var (
-	contextPkg string
-	grpcPkg    string
-)
-
-// Init initializes the plugin.
-func (g *grpc) Init(gen *generator.Generator) {
-	g.gen = gen
-}
-
-// Given a type name defined in a .proto, return its object.
-// Also record that we're using it, to guarantee the associated import.
-func (g *grpc) objectNamed(name string) generator.Object {
-	g.gen.RecordTypeUse(name)
-	return g.gen.ObjectNamed(name)
-}
-
-// Given a type name defined in a .proto, return its name as we will print it.
-func (g *grpc) typeName(str string) string {
-	return g.gen.TypeName(g.objectNamed(str))
-}
-
-// P forwards to g.gen.P.
-func (g *grpc) P(args ...interface{}) { g.gen.P(args...) }
-
-// Generate generates code for the services in the given file.
-func (g *grpc) Generate(file *generator.FileDescriptor) {
-	if len(file.FileDescriptorProto.Service) == 0 {
-		return
-	}
-
-	contextPkg = string(g.gen.AddImport(contextPkgPath))
-	grpcPkg = string(g.gen.AddImport(grpcPkgPath))
-
-	g.P("// Reference imports to suppress errors if they are not otherwise used.")
-	g.P("var _ ", contextPkg, ".Context")
-	g.P("var _ ", grpcPkg, ".ClientConn")
-	g.P()
-
-	// Assert version compatibility.
-	g.P("// This is a compile-time assertion to ensure that this generated file")
-	g.P("// is compatible with the grpc package it is being compiled against.")
-	g.P("const _ = ", grpcPkg, ".SupportPackageIsVersion", generatedCodeVersion)
-	g.P()
-
-	for i, service := range file.FileDescriptorProto.Service {
-		g.generateService(file, service, i)
-	}
-}
-
-// GenerateImports generates the import declaration for this file.
-func (g *grpc) GenerateImports(file *generator.FileDescriptor) {
-}
-
-// reservedClientName records whether a client name is reserved on the client side.
-var reservedClientName = map[string]bool{
-	// TODO: do we need any in gRPC?
-}
-
-func unexport(s string) string { return strings.ToLower(s[:1]) + s[1:] }
-
-// deprecationComment is the standard comment added to deprecated
-// messages, fields, enums, and enum values.
-var deprecationComment = "// Deprecated: Do not use."
-
-// generateService generates all the code for the named service.
-func (g *grpc) generateService(file *generator.FileDescriptor, service *pb.ServiceDescriptorProto, index int) {
-	path := fmt.Sprintf("6,%d", index) // 6 means service.
-
-	origServName := service.GetName()
-	fullServName := origServName
-	if pkg := file.GetPackage(); pkg != "" {
-		fullServName = pkg + "." + fullServName
-	}
-	servName := generator.CamelCase(origServName)
-	deprecated := service.GetOptions().GetDeprecated()
-
-	g.P()
-	g.P(fmt.Sprintf(`// %sClient is the client API for %s service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.`, servName, servName))
-
-	// Client interface.
-	if deprecated {
-		g.P("//")
-		g.P(deprecationComment)
-	}
-	g.P("type ", servName, "Client interface {")
-	for i, method := range service.Method {
-		g.gen.PrintComments(fmt.Sprintf("%s,2,%d", path, i)) // 2 means method in a service.
-		g.P(g.generateClientSignature(servName, method))
-	}
-	g.P("}")
-	g.P()
-
-	// Client structure.
-	g.P("type ", unexport(servName), "Client struct {")
-	g.P("cc *", grpcPkg, ".ClientConn")
-	g.P("}")
-	g.P()
-
-	// NewClient factory.
-	if deprecated {
-		g.P(deprecationComment)
-	}
-	g.P("func New", servName, "Client (cc *", grpcPkg, ".ClientConn) ", servName, "Client {")
-	g.P("return &", unexport(servName), "Client{cc}")
-	g.P("}")
-	g.P()
-
-	var methodIndex, streamIndex int
-	serviceDescVar := "_" + servName + "_serviceDesc"
-	// Client method implementations.
-	for _, method := range service.Method {
-		var descExpr string
-		if !method.GetServerStreaming() && !method.GetClientStreaming() {
-			// Unary RPC method
-			descExpr = fmt.Sprintf("&%s.Methods[%d]", serviceDescVar, methodIndex)
-			methodIndex++
-		} else {
-			// Streaming RPC method
-			descExpr = fmt.Sprintf("&%s.Streams[%d]", serviceDescVar, streamIndex)
-			streamIndex++
-		}
-		g.generateClientMethod(servName, fullServName, serviceDescVar, method, descExpr)
-	}
-
-	// Server interface.
-	serverType := servName + "Server"
-	g.P("// ", serverType, " is the server API for ", servName, " service.")
-	if deprecated {
-		g.P("//")
-		g.P(deprecationComment)
-	}
-	g.P("type ", serverType, " interface {")
-	for i, method := range service.Method {
-		g.gen.PrintComments(fmt.Sprintf("%s,2,%d", path, i)) // 2 means method in a service.
-		g.P(g.generateServerSignature(servName, method))
-	}
-	g.P("}")
-	g.P()
-
-	// Server registration.
-	if deprecated {
-		g.P(deprecationComment)
-	}
-	g.P("func Register", servName, "Server(s *", grpcPkg, ".Server, srv ", serverType, ") {")
-	g.P("s.RegisterService(&", serviceDescVar, `, srv)`)
-	g.P("}")
-	g.P()
-
-	// Server handler implementations.
-	var handlerNames []string
-	for _, method := range service.Method {
-		hname := g.generateServerMethod(servName, fullServName, method)
-		handlerNames = append(handlerNames, hname)
-	}
-
-	// Service descriptor.
-	g.P("var ", serviceDescVar, " = ", grpcPkg, ".ServiceDesc {")
-	g.P("ServiceName: ", strconv.Quote(fullServName), ",")
-	g.P("HandlerType: (*", serverType, ")(nil),")
-	g.P("Methods: []", grpcPkg, ".MethodDesc{")
-	for i, method := range service.Method {
-		if method.GetServerStreaming() || method.GetClientStreaming() {
-			continue
-		}
-		g.P("{")
-		g.P("MethodName: ", strconv.Quote(method.GetName()), ",")
-		g.P("Handler: ", handlerNames[i], ",")
-		g.P("},")
-	}
-	g.P("},")
-	g.P("Streams: []", grpcPkg, ".StreamDesc{")
-	for i, method := range service.Method {
-		if !method.GetServerStreaming() && !method.GetClientStreaming() {
-			continue
-		}
-		g.P("{")
-		g.P("StreamName: ", strconv.Quote(method.GetName()), ",")
-		g.P("Handler: ", handlerNames[i], ",")
-		if method.GetServerStreaming() {
-			g.P("ServerStreams: true,")
-		}
-		if method.GetClientStreaming() {
-			g.P("ClientStreams: true,")
-		}
-		g.P("},")
-	}
-	g.P("},")
-	g.P("Metadata: \"", file.GetName(), "\",")
-	g.P("}")
-	g.P()
-}
-
-// generateClientSignature returns the client-side signature for a method.
-func (g *grpc) generateClientSignature(servName string, method *pb.MethodDescriptorProto) string {
-	origMethName := method.GetName()
-	methName := generator.CamelCase(origMethName)
-	if reservedClientName[methName] {
-		methName += "_"
-	}
-	reqArg := ", in *" + g.typeName(method.GetInputType())
-	if method.GetClientStreaming() {
-		reqArg = ""
-	}
-	respName := "*" + g.typeName(method.GetOutputType())
-	if method.GetServerStreaming() || method.GetClientStreaming() {
-		respName = servName + "_" + generator.CamelCase(origMethName) + "Client"
-	}
-	return fmt.Sprintf("%s(ctx %s.Context%s, opts ...%s.CallOption) (%s, error)", methName, contextPkg, reqArg, grpcPkg, respName)
-}
-
-func (g *grpc) generateClientMethod(servName, fullServName, serviceDescVar string, method *pb.MethodDescriptorProto, descExpr string) {
-	sname := fmt.Sprintf("/%s/%s", fullServName, method.GetName())
-	methName := generator.CamelCase(method.GetName())
-	inType := g.typeName(method.GetInputType())
-	outType := g.typeName(method.GetOutputType())
-
-	if method.GetOptions().GetDeprecated() {
-		g.P(deprecationComment)
-	}
-	g.P("func (c *", unexport(servName), "Client) ", g.generateClientSignature(servName, method), "{")
-	if !method.GetServerStreaming() && !method.GetClientStreaming() {
-		g.P("out := new(", outType, ")")
-		// TODO: Pass descExpr to Invoke.
-		g.P(`err := c.cc.Invoke(ctx, "`, sname, `", in, out, opts...)`)
-		g.P("if err != nil { return nil, err }")
-		g.P("return out, nil")
-		g.P("}")
-		g.P()
-		return
-	}
-	streamType := unexport(servName) + methName + "Client"
-	g.P("stream, err := c.cc.NewStream(ctx, ", descExpr, `, "`, sname, `", opts...)`)
-	g.P("if err != nil { return nil, err }")
-	g.P("x := &", streamType, "{stream}")
-	if !method.GetClientStreaming() {
-		g.P("if err := x.ClientStream.SendMsg(in); err != nil { return nil, err }")
-		g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
-	}
-	g.P("return x, nil")
-	g.P("}")
-	g.P()
-
-	genSend := method.GetClientStreaming()
-	genRecv := method.GetServerStreaming()
-	genCloseAndRecv := !method.GetServerStreaming()
-
-	// Stream auxiliary types and methods.
-	g.P("type ", servName, "_", methName, "Client interface {")
-	if genSend {
-		g.P("Send(*", inType, ") error")
-	}
-	if genRecv {
-		g.P("Recv() (*", outType, ", error)")
-	}
-	if genCloseAndRecv {
-		g.P("CloseAndRecv() (*", outType, ", error)")
-	}
-	g.P(grpcPkg, ".ClientStream")
-	g.P("}")
-	g.P()
-
-	g.P("type ", streamType, " struct {")
-	g.P(grpcPkg, ".ClientStream")
-	g.P("}")
-	g.P()
-
-	if genSend {
-		g.P("func (x *", streamType, ") Send(m *", inType, ") error {")
-		g.P("return x.ClientStream.SendMsg(m)")
-		g.P("}")
-		g.P()
-	}
-	if genRecv {
-		g.P("func (x *", streamType, ") Recv() (*", outType, ", error) {")
-		g.P("m := new(", outType, ")")
-		g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
-		g.P("return m, nil")
-		g.P("}")
-		g.P()
-	}
-	if genCloseAndRecv {
-		g.P("func (x *", streamType, ") CloseAndRecv() (*", outType, ", error) {")
-		g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
-		g.P("m := new(", outType, ")")
-		g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
-		g.P("return m, nil")
-		g.P("}")
-		g.P()
-	}
-}
-
-// generateServerSignature returns the server-side signature for a method.
-func (g *grpc) generateServerSignature(servName string, method *pb.MethodDescriptorProto) string {
-	origMethName := method.GetName()
-	methName := generator.CamelCase(origMethName)
-	if reservedClientName[methName] {
-		methName += "_"
-	}
-
-	var reqArgs []string
-	ret := "error"
-	if !method.GetServerStreaming() && !method.GetClientStreaming() {
-		reqArgs = append(reqArgs, contextPkg+".Context")
-		ret = "(*" + g.typeName(method.GetOutputType()) + ", error)"
-	}
-	if !method.GetClientStreaming() {
-		reqArgs = append(reqArgs, "*"+g.typeName(method.GetInputType()))
-	}
-	if method.GetServerStreaming() || method.GetClientStreaming() {
-		reqArgs = append(reqArgs, servName+"_"+generator.CamelCase(origMethName)+"Server")
-	}
-
-	return methName + "(" + strings.Join(reqArgs, ", ") + ") " + ret
-}
-
-func (g *grpc) generateServerMethod(servName, fullServName string, method *pb.MethodDescriptorProto) string {
-	methName := generator.CamelCase(method.GetName())
-	hname := fmt.Sprintf("_%s_%s_Handler", servName, methName)
-	inType := g.typeName(method.GetInputType())
-	outType := g.typeName(method.GetOutputType())
-
-	if !method.GetServerStreaming() && !method.GetClientStreaming() {
-		g.P("func ", hname, "(srv interface{}, ctx ", contextPkg, ".Context, dec func(interface{}) error, interceptor ", grpcPkg, ".UnaryServerInterceptor) (interface{}, error) {")
-		g.P("in := new(", inType, ")")
-		g.P("if err := dec(in); err != nil { return nil, err }")
-		g.P("if interceptor == nil { return srv.(", servName, "Server).", methName, "(ctx, in) }")
-		g.P("info := &", grpcPkg, ".UnaryServerInfo{")
-		g.P("Server: srv,")
-		g.P("FullMethod: ", strconv.Quote(fmt.Sprintf("/%s/%s", fullServName, methName)), ",")
-		g.P("}")
-		g.P("handler := func(ctx ", contextPkg, ".Context, req interface{}) (interface{}, error) {")
-		g.P("return srv.(", servName, "Server).", methName, "(ctx, req.(*", inType, "))")
-		g.P("}")
-		g.P("return interceptor(ctx, in, info, handler)")
-		g.P("}")
-		g.P()
-		return hname
-	}
-	streamType := unexport(servName) + methName + "Server"
-	g.P("func ", hname, "(srv interface{}, stream ", grpcPkg, ".ServerStream) error {")
-	if !method.GetClientStreaming() {
-		g.P("m := new(", inType, ")")
-		g.P("if err := stream.RecvMsg(m); err != nil { return err }")
-		g.P("return srv.(", servName, "Server).", methName, "(m, &", streamType, "{stream})")
-	} else {
-		g.P("return srv.(", servName, "Server).", methName, "(&", streamType, "{stream})")
-	}
-	g.P("}")
-	g.P()
-
-	genSend := method.GetServerStreaming()
-	genSendAndClose := !method.GetServerStreaming()
-	genRecv := method.GetClientStreaming()
-
-	// Stream auxiliary types and methods.
-	g.P("type ", servName, "_", methName, "Server interface {")
-	if genSend {
-		g.P("Send(*", outType, ") error")
-	}
-	if genSendAndClose {
-		g.P("SendAndClose(*", outType, ") error")
-	}
-	if genRecv {
-		g.P("Recv() (*", inType, ", error)")
-	}
-	g.P(grpcPkg, ".ServerStream")
-	g.P("}")
-	g.P()
-
-	g.P("type ", streamType, " struct {")
-	g.P(grpcPkg, ".ServerStream")
-	g.P("}")
-	g.P()
-
-	if genSend {
-		g.P("func (x *", streamType, ") Send(m *", outType, ") error {")
-		g.P("return x.ServerStream.SendMsg(m)")
-		g.P("}")
-		g.P()
-	}
-	if genSendAndClose {
-		g.P("func (x *", streamType, ") SendAndClose(m *", outType, ") error {")
-		g.P("return x.ServerStream.SendMsg(m)")
-		g.P("}")
-		g.P()
-	}
-	if genRecv {
-		g.P("func (x *", streamType, ") Recv() (*", inType, ", error) {")
-		g.P("m := new(", inType, ")")
-		g.P("if err := x.ServerStream.RecvMsg(m); err != nil { return nil, err }")
-		g.P("return m, nil")
-		g.P("}")
-		g.P()
-	}
-
-	return hname
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/link_grpc.go b/vendor/github.com/golang/protobuf/protoc-gen-go/link_grpc.go
deleted file mode 100644
index 532a550..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/link_grpc.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2015 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package main
-
-import _ "github.com/golang/protobuf/protoc-gen-go/grpc"
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/main.go b/vendor/github.com/golang/protobuf/protoc-gen-go/main.go
deleted file mode 100644
index 8e2486d..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/main.go
+++ /dev/null
@@ -1,98 +0,0 @@
-// Go support for Protocol Buffers - Google's data interchange format
-//
-// Copyright 2010 The Go Authors.  All rights reserved.
-// https://github.com/golang/protobuf
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// protoc-gen-go is a plugin for the Google protocol buffer compiler to generate
-// Go code.  Run it by building this program and putting it in your path with
-// the name
-// 	protoc-gen-go
-// That word 'go' at the end becomes part of the option string set for the
-// protocol compiler, so once the protocol compiler (protoc) is installed
-// you can run
-// 	protoc --go_out=output_directory input_directory/file.proto
-// to generate Go bindings for the protocol defined by file.proto.
-// With that input, the output will be written to
-// 	output_directory/file.pb.go
-//
-// The generated code is documented in the package comment for
-// the library.
-//
-// See the README and documentation for protocol buffers to learn more:
-// 	https://developers.google.com/protocol-buffers/
-package main
-
-import (
-	"io/ioutil"
-	"os"
-
-	"github.com/golang/protobuf/proto"
-	"github.com/golang/protobuf/protoc-gen-go/generator"
-)
-
-func main() {
-	// Begin by allocating a generator. The request and response structures are stored there
-	// so we can do error handling easily - the response structure contains the field to
-	// report failure.
-	g := generator.New()
-
-	data, err := ioutil.ReadAll(os.Stdin)
-	if err != nil {
-		g.Error(err, "reading input")
-	}
-
-	if err := proto.Unmarshal(data, g.Request); err != nil {
-		g.Error(err, "parsing input proto")
-	}
-
-	if len(g.Request.FileToGenerate) == 0 {
-		g.Fail("no files to generate")
-	}
-
-	g.CommandLineParameters(g.Request.GetParameter())
-
-	// Create a wrapped version of the Descriptors and EnumDescriptors that
-	// point to the file that defines them.
-	g.WrapTypes()
-
-	g.SetPackageNames()
-	g.BuildTypeNameMap()
-
-	g.GenerateAllFiles()
-
-	// Send back the results.
-	data, err = proto.Marshal(g.Response)
-	if err != nil {
-		g.Error(err, "failed to marshal output proto")
-	}
-	_, err = os.Stdout.Write(data)
-	if err != nil {
-		g.Error(err, "failed to write output proto")
-	}
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go
deleted file mode 100644
index 61bfc10..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go
+++ /dev/null
@@ -1,369 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: google/protobuf/compiler/plugin.proto
-
-/*
-Package plugin_go is a generated protocol buffer package.
-
-It is generated from these files:
-	google/protobuf/compiler/plugin.proto
-
-It has these top-level messages:
-	Version
-	CodeGeneratorRequest
-	CodeGeneratorResponse
-*/
-package plugin_go
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-// The version number of protocol compiler.
-type Version struct {
-	Major *int32 `protobuf:"varint,1,opt,name=major" json:"major,omitempty"`
-	Minor *int32 `protobuf:"varint,2,opt,name=minor" json:"minor,omitempty"`
-	Patch *int32 `protobuf:"varint,3,opt,name=patch" json:"patch,omitempty"`
-	// A suffix for alpha, beta or rc release, e.g., "alpha-1", "rc2". It should
-	// be empty for mainline stable releases.
-	Suffix               *string  `protobuf:"bytes,4,opt,name=suffix" json:"suffix,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *Version) Reset()                    { *m = Version{} }
-func (m *Version) String() string            { return proto.CompactTextString(m) }
-func (*Version) ProtoMessage()               {}
-func (*Version) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-func (m *Version) Unmarshal(b []byte) error {
-	return xxx_messageInfo_Version.Unmarshal(m, b)
-}
-func (m *Version) Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_Version.Marshal(b, m, deterministic)
-}
-func (dst *Version) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_Version.Merge(dst, src)
-}
-func (m *Version) XXX_Size() int {
-	return xxx_messageInfo_Version.Size(m)
-}
-func (m *Version) XXX_DiscardUnknown() {
-	xxx_messageInfo_Version.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_Version proto.InternalMessageInfo
-
-func (m *Version) GetMajor() int32 {
-	if m != nil && m.Major != nil {
-		return *m.Major
-	}
-	return 0
-}
-
-func (m *Version) GetMinor() int32 {
-	if m != nil && m.Minor != nil {
-		return *m.Minor
-	}
-	return 0
-}
-
-func (m *Version) GetPatch() int32 {
-	if m != nil && m.Patch != nil {
-		return *m.Patch
-	}
-	return 0
-}
-
-func (m *Version) GetSuffix() string {
-	if m != nil && m.Suffix != nil {
-		return *m.Suffix
-	}
-	return ""
-}
-
-// An encoded CodeGeneratorRequest is written to the plugin's stdin.
-type CodeGeneratorRequest struct {
-	// The .proto files that were explicitly listed on the command-line.  The
-	// code generator should generate code only for these files.  Each file's
-	// descriptor will be included in proto_file, below.
-	FileToGenerate []string `protobuf:"bytes,1,rep,name=file_to_generate,json=fileToGenerate" json:"file_to_generate,omitempty"`
-	// The generator parameter passed on the command-line.
-	Parameter *string `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
-	// FileDescriptorProtos for all files in files_to_generate and everything
-	// they import.  The files will appear in topological order, so each file
-	// appears before any file that imports it.
-	//
-	// protoc guarantees that all proto_files will be written after
-	// the fields above, even though this is not technically guaranteed by the
-	// protobuf wire format.  This theoretically could allow a plugin to stream
-	// in the FileDescriptorProtos and handle them one by one rather than read
-	// the entire set into memory at once.  However, as of this writing, this
-	// is not similarly optimized on protoc's end -- it will store all fields in
-	// memory at once before sending them to the plugin.
-	//
-	// Type names of fields and extensions in the FileDescriptorProto are always
-	// fully qualified.
-	ProtoFile []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file,json=protoFile" json:"proto_file,omitempty"`
-	// The version number of protocol compiler.
-	CompilerVersion      *Version `protobuf:"bytes,3,opt,name=compiler_version,json=compilerVersion" json:"compiler_version,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *CodeGeneratorRequest) Reset()                    { *m = CodeGeneratorRequest{} }
-func (m *CodeGeneratorRequest) String() string            { return proto.CompactTextString(m) }
-func (*CodeGeneratorRequest) ProtoMessage()               {}
-func (*CodeGeneratorRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
-func (m *CodeGeneratorRequest) Unmarshal(b []byte) error {
-	return xxx_messageInfo_CodeGeneratorRequest.Unmarshal(m, b)
-}
-func (m *CodeGeneratorRequest) Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_CodeGeneratorRequest.Marshal(b, m, deterministic)
-}
-func (dst *CodeGeneratorRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_CodeGeneratorRequest.Merge(dst, src)
-}
-func (m *CodeGeneratorRequest) XXX_Size() int {
-	return xxx_messageInfo_CodeGeneratorRequest.Size(m)
-}
-func (m *CodeGeneratorRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_CodeGeneratorRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_CodeGeneratorRequest proto.InternalMessageInfo
-
-func (m *CodeGeneratorRequest) GetFileToGenerate() []string {
-	if m != nil {
-		return m.FileToGenerate
-	}
-	return nil
-}
-
-func (m *CodeGeneratorRequest) GetParameter() string {
-	if m != nil && m.Parameter != nil {
-		return *m.Parameter
-	}
-	return ""
-}
-
-func (m *CodeGeneratorRequest) GetProtoFile() []*google_protobuf.FileDescriptorProto {
-	if m != nil {
-		return m.ProtoFile
-	}
-	return nil
-}
-
-func (m *CodeGeneratorRequest) GetCompilerVersion() *Version {
-	if m != nil {
-		return m.CompilerVersion
-	}
-	return nil
-}
-
-// The plugin writes an encoded CodeGeneratorResponse to stdout.
-type CodeGeneratorResponse struct {
-	// Error message.  If non-empty, code generation failed.  The plugin process
-	// should exit with status code zero even if it reports an error in this way.
-	//
-	// This should be used to indicate errors in .proto files which prevent the
-	// code generator from generating correct code.  Errors which indicate a
-	// problem in protoc itself -- such as the input CodeGeneratorRequest being
-	// unparseable -- should be reported by writing a message to stderr and
-	// exiting with a non-zero status code.
-	Error                *string                       `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
-	File                 []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}                      `json:"-"`
-	XXX_unrecognized     []byte                        `json:"-"`
-	XXX_sizecache        int32                         `json:"-"`
-}
-
-func (m *CodeGeneratorResponse) Reset()                    { *m = CodeGeneratorResponse{} }
-func (m *CodeGeneratorResponse) String() string            { return proto.CompactTextString(m) }
-func (*CodeGeneratorResponse) ProtoMessage()               {}
-func (*CodeGeneratorResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
-func (m *CodeGeneratorResponse) Unmarshal(b []byte) error {
-	return xxx_messageInfo_CodeGeneratorResponse.Unmarshal(m, b)
-}
-func (m *CodeGeneratorResponse) Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_CodeGeneratorResponse.Marshal(b, m, deterministic)
-}
-func (dst *CodeGeneratorResponse) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_CodeGeneratorResponse.Merge(dst, src)
-}
-func (m *CodeGeneratorResponse) XXX_Size() int {
-	return xxx_messageInfo_CodeGeneratorResponse.Size(m)
-}
-func (m *CodeGeneratorResponse) XXX_DiscardUnknown() {
-	xxx_messageInfo_CodeGeneratorResponse.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_CodeGeneratorResponse proto.InternalMessageInfo
-
-func (m *CodeGeneratorResponse) GetError() string {
-	if m != nil && m.Error != nil {
-		return *m.Error
-	}
-	return ""
-}
-
-func (m *CodeGeneratorResponse) GetFile() []*CodeGeneratorResponse_File {
-	if m != nil {
-		return m.File
-	}
-	return nil
-}
-
-// Represents a single generated file.
-type CodeGeneratorResponse_File struct {
-	// The file name, relative to the output directory.  The name must not
-	// contain "." or ".." components and must be relative, not be absolute (so,
-	// the file cannot lie outside the output directory).  "/" must be used as
-	// the path separator, not "\".
-	//
-	// If the name is omitted, the content will be appended to the previous
-	// file.  This allows the generator to break large files into small chunks,
-	// and allows the generated text to be streamed back to protoc so that large
-	// files need not reside completely in memory at one time.  Note that as of
-	// this writing protoc does not optimize for this -- it will read the entire
-	// CodeGeneratorResponse before writing files to disk.
-	Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	// If non-empty, indicates that the named file should already exist, and the
-	// content here is to be inserted into that file at a defined insertion
-	// point.  This feature allows a code generator to extend the output
-	// produced by another code generator.  The original generator may provide
-	// insertion points by placing special annotations in the file that look
-	// like:
-	//   @@protoc_insertion_point(NAME)
-	// The annotation can have arbitrary text before and after it on the line,
-	// which allows it to be placed in a comment.  NAME should be replaced with
-	// an identifier naming the point -- this is what other generators will use
-	// as the insertion_point.  Code inserted at this point will be placed
-	// immediately above the line containing the insertion point (thus multiple
-	// insertions to the same point will come out in the order they were added).
-	// The double-@ is intended to make it unlikely that the generated code
-	// could contain things that look like insertion points by accident.
-	//
-	// For example, the C++ code generator places the following line in the
-	// .pb.h files that it generates:
-	//   // @@protoc_insertion_point(namespace_scope)
-	// This line appears within the scope of the file's package namespace, but
-	// outside of any particular class.  Another plugin can then specify the
-	// insertion_point "namespace_scope" to generate additional classes or
-	// other declarations that should be placed in this scope.
-	//
-	// Note that if the line containing the insertion point begins with
-	// whitespace, the same whitespace will be added to every line of the
-	// inserted text.  This is useful for languages like Python, where
-	// indentation matters.  In these languages, the insertion point comment
-	// should be indented the same amount as any inserted code will need to be
-	// in order to work correctly in that context.
-	//
-	// The code generator that generates the initial file and the one which
-	// inserts into it must both run as part of a single invocation of protoc.
-	// Code generators are executed in the order in which they appear on the
-	// command line.
-	//
-	// If |insertion_point| is present, |name| must also be present.
-	InsertionPoint *string `protobuf:"bytes,2,opt,name=insertion_point,json=insertionPoint" json:"insertion_point,omitempty"`
-	// The file contents.
-	Content              *string  `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *CodeGeneratorResponse_File) Reset()                    { *m = CodeGeneratorResponse_File{} }
-func (m *CodeGeneratorResponse_File) String() string            { return proto.CompactTextString(m) }
-func (*CodeGeneratorResponse_File) ProtoMessage()               {}
-func (*CodeGeneratorResponse_File) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2, 0} }
-func (m *CodeGeneratorResponse_File) Unmarshal(b []byte) error {
-	return xxx_messageInfo_CodeGeneratorResponse_File.Unmarshal(m, b)
-}
-func (m *CodeGeneratorResponse_File) Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_CodeGeneratorResponse_File.Marshal(b, m, deterministic)
-}
-func (dst *CodeGeneratorResponse_File) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_CodeGeneratorResponse_File.Merge(dst, src)
-}
-func (m *CodeGeneratorResponse_File) XXX_Size() int {
-	return xxx_messageInfo_CodeGeneratorResponse_File.Size(m)
-}
-func (m *CodeGeneratorResponse_File) XXX_DiscardUnknown() {
-	xxx_messageInfo_CodeGeneratorResponse_File.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_CodeGeneratorResponse_File proto.InternalMessageInfo
-
-func (m *CodeGeneratorResponse_File) GetName() string {
-	if m != nil && m.Name != nil {
-		return *m.Name
-	}
-	return ""
-}
-
-func (m *CodeGeneratorResponse_File) GetInsertionPoint() string {
-	if m != nil && m.InsertionPoint != nil {
-		return *m.InsertionPoint
-	}
-	return ""
-}
-
-func (m *CodeGeneratorResponse_File) GetContent() string {
-	if m != nil && m.Content != nil {
-		return *m.Content
-	}
-	return ""
-}
-
-func init() {
-	proto.RegisterType((*Version)(nil), "google.protobuf.compiler.Version")
-	proto.RegisterType((*CodeGeneratorRequest)(nil), "google.protobuf.compiler.CodeGeneratorRequest")
-	proto.RegisterType((*CodeGeneratorResponse)(nil), "google.protobuf.compiler.CodeGeneratorResponse")
-	proto.RegisterType((*CodeGeneratorResponse_File)(nil), "google.protobuf.compiler.CodeGeneratorResponse.File")
-}
-
-func init() { proto.RegisterFile("google/protobuf/compiler/plugin.proto", fileDescriptor0) }
-
-var fileDescriptor0 = []byte{
-	// 417 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x92, 0xcf, 0x6a, 0x14, 0x41,
-	0x10, 0xc6, 0x19, 0x77, 0x63, 0x98, 0x8a, 0x64, 0x43, 0x13, 0xa5, 0x09, 0x39, 0x8c, 0x8b, 0xe2,
-	0x5c, 0x32, 0x0b, 0xc1, 0x8b, 0x78, 0x4b, 0x44, 0x3d, 0x78, 0x58, 0x1a, 0xf1, 0x20, 0xc8, 0x30,
-	0x99, 0xd4, 0x74, 0x5a, 0x66, 0xba, 0xc6, 0xee, 0x1e, 0xf1, 0x49, 0x7d, 0x0f, 0xdf, 0x40, 0xfa,
-	0xcf, 0x24, 0xb2, 0xb8, 0xa7, 0xee, 0xef, 0x57, 0xd5, 0xd5, 0x55, 0x1f, 0x05, 0x2f, 0x25, 0x91,
-	0xec, 0x71, 0x33, 0x1a, 0x72, 0x74, 0x33, 0x75, 0x9b, 0x96, 0x86, 0x51, 0xf5, 0x68, 0x36, 0x63,
-	0x3f, 0x49, 0xa5, 0xab, 0x10, 0x60, 0x3c, 0xa6, 0x55, 0x73, 0x5a, 0x35, 0xa7, 0x9d, 0x15, 0xbb,
-	0x05, 0x6e, 0xd1, 0xb6, 0x46, 0x8d, 0x8e, 0x4c, 0xcc, 0x5e, 0xb7, 0x70, 0xf8, 0x05, 0x8d, 0x55,
-	0xa4, 0xd9, 0x29, 0x1c, 0x0c, 0xcd, 0x77, 0x32, 0x3c, 0x2b, 0xb2, 0xf2, 0x40, 0x44, 0x11, 0xa8,
-	0xd2, 0x64, 0xf8, 0xa3, 0x44, 0xbd, 0xf0, 0x74, 0x6c, 0x5c, 0x7b, 0xc7, 0x17, 0x91, 0x06, 0xc1,
-	0x9e, 0xc1, 0x63, 0x3b, 0x75, 0x9d, 0xfa, 0xc5, 0x97, 0x45, 0x56, 0xe6, 0x22, 0xa9, 0xf5, 0x9f,
-	0x0c, 0x4e, 0xaf, 0xe9, 0x16, 0x3f, 0xa0, 0x46, 0xd3, 0x38, 0x32, 0x02, 0x7f, 0x4c, 0x68, 0x1d,
-	0x2b, 0xe1, 0xa4, 0x53, 0x3d, 0xd6, 0x8e, 0x6a, 0x19, 0x63, 0xc8, 0xb3, 0x62, 0x51, 0xe6, 0xe2,
-	0xd8, 0xf3, 0xcf, 0x94, 0x5e, 0x20, 0x3b, 0x87, 0x7c, 0x6c, 0x4c, 0x33, 0xa0, 0xc3, 0xd8, 0x4a,
-	0x2e, 0x1e, 0x00, 0xbb, 0x06, 0x08, 0xe3, 0xd4, 0xfe, 0x15, 0x5f, 0x15, 0x8b, 0xf2, 0xe8, 0xf2,
-	0x45, 0xb5, 0x6b, 0xcb, 0x7b, 0xd5, 0xe3, 0xbb, 0x7b, 0x03, 0xb6, 0x1e, 0x8b, 0x3c, 0x44, 0x7d,
-	0x84, 0x7d, 0x82, 0x93, 0xd9, 0xb8, 0xfa, 0x67, 0xf4, 0x24, 0x8c, 0x77, 0x74, 0xf9, 0xbc, 0xda,
-	0xe7, 0x70, 0x95, 0xcc, 0x13, 0xab, 0x99, 0x24, 0xb0, 0xfe, 0x9d, 0xc1, 0xd3, 0x9d, 0x99, 0xed,
-	0x48, 0xda, 0xa2, 0xf7, 0x0e, 0x8d, 0x49, 0x3e, 0xe7, 0x22, 0x0a, 0xf6, 0x11, 0x96, 0xff, 0x34,
-	0xff, 0x7a, 0xff, 0x8f, 0xff, 0x2d, 0x1a, 0x66, 0x13, 0xa1, 0xc2, 0xd9, 0x37, 0x58, 0x86, 0x79,
-	0x18, 0x2c, 0x75, 0x33, 0x60, 0xfa, 0x26, 0xdc, 0xd9, 0x2b, 0x58, 0x29, 0x6d, 0xd1, 0x38, 0x45,
-	0xba, 0x1e, 0x49, 0x69, 0x97, 0xcc, 0x3c, 0xbe, 0xc7, 0x5b, 0x4f, 0x19, 0x87, 0xc3, 0x96, 0xb4,
-	0x43, 0xed, 0xf8, 0x2a, 0x24, 0xcc, 0xf2, 0x4a, 0xc2, 0x79, 0x4b, 0xc3, 0xde, 0xfe, 0xae, 0x9e,
-	0x6c, 0xc3, 0x6e, 0x06, 0x7b, 0xed, 0xd7, 0x37, 0x52, 0xb9, 0xbb, 0xe9, 0xc6, 0x87, 0x37, 0x92,
-	0xfa, 0x46, 0xcb, 0x87, 0x65, 0x0c, 0x97, 0xf6, 0x42, 0xa2, 0xbe, 0x90, 0x94, 0x56, 0xfa, 0x6d,
-	0x3c, 0x6a, 0x49, 0x7f, 0x03, 0x00, 0x00, 0xff, 0xff, 0xf7, 0x15, 0x40, 0xc5, 0xfe, 0x02, 0x00,
-	0x00,
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden
deleted file mode 100644
index 8953d0f..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden
+++ /dev/null
@@ -1,83 +0,0 @@
-// Code generated by protoc-gen-go.
-// source: google/protobuf/compiler/plugin.proto
-// DO NOT EDIT!
-
-package google_protobuf_compiler
-
-import proto "github.com/golang/protobuf/proto"
-import "math"
-import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
-
-// Reference proto and math imports to suppress error if they are not otherwise used.
-var _ = proto.GetString
-var _ = math.Inf
-
-type CodeGeneratorRequest struct {
-	FileToGenerate   []string                               `protobuf:"bytes,1,rep,name=file_to_generate" json:"file_to_generate,omitempty"`
-	Parameter        *string                                `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
-	ProtoFile        []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file" json:"proto_file,omitempty"`
-	XXX_unrecognized []byte                                 `json:"-"`
-}
-
-func (this *CodeGeneratorRequest) Reset()         { *this = CodeGeneratorRequest{} }
-func (this *CodeGeneratorRequest) String() string { return proto.CompactTextString(this) }
-func (*CodeGeneratorRequest) ProtoMessage()       {}
-
-func (this *CodeGeneratorRequest) GetParameter() string {
-	if this != nil && this.Parameter != nil {
-		return *this.Parameter
-	}
-	return ""
-}
-
-type CodeGeneratorResponse struct {
-	Error            *string                       `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
-	File             []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
-	XXX_unrecognized []byte                        `json:"-"`
-}
-
-func (this *CodeGeneratorResponse) Reset()         { *this = CodeGeneratorResponse{} }
-func (this *CodeGeneratorResponse) String() string { return proto.CompactTextString(this) }
-func (*CodeGeneratorResponse) ProtoMessage()       {}
-
-func (this *CodeGeneratorResponse) GetError() string {
-	if this != nil && this.Error != nil {
-		return *this.Error
-	}
-	return ""
-}
-
-type CodeGeneratorResponse_File struct {
-	Name             *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	InsertionPoint   *string `protobuf:"bytes,2,opt,name=insertion_point" json:"insertion_point,omitempty"`
-	Content          *string `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
-	XXX_unrecognized []byte  `json:"-"`
-}
-
-func (this *CodeGeneratorResponse_File) Reset()         { *this = CodeGeneratorResponse_File{} }
-func (this *CodeGeneratorResponse_File) String() string { return proto.CompactTextString(this) }
-func (*CodeGeneratorResponse_File) ProtoMessage()       {}
-
-func (this *CodeGeneratorResponse_File) GetName() string {
-	if this != nil && this.Name != nil {
-		return *this.Name
-	}
-	return ""
-}
-
-func (this *CodeGeneratorResponse_File) GetInsertionPoint() string {
-	if this != nil && this.InsertionPoint != nil {
-		return *this.InsertionPoint
-	}
-	return ""
-}
-
-func (this *CodeGeneratorResponse_File) GetContent() string {
-	if this != nil && this.Content != nil {
-		return *this.Content
-	}
-	return ""
-}
-
-func init() {
-}
diff --git a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.proto b/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.proto
deleted file mode 100644
index 5b55745..0000000
--- a/vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.proto
+++ /dev/null
@@ -1,167 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Author: kenton@google.com (Kenton Varda)
-//
-// WARNING:  The plugin interface is currently EXPERIMENTAL and is subject to
-//   change.
-//
-// protoc (aka the Protocol Compiler) can be extended via plugins.  A plugin is
-// just a program that reads a CodeGeneratorRequest from stdin and writes a
-// CodeGeneratorResponse to stdout.
-//
-// Plugins written using C++ can use google/protobuf/compiler/plugin.h instead
-// of dealing with the raw protocol defined here.
-//
-// A plugin executable needs only to be placed somewhere in the path.  The
-// plugin should be named "protoc-gen-$NAME", and will then be used when the
-// flag "--${NAME}_out" is passed to protoc.
-
-syntax = "proto2";
-package google.protobuf.compiler;
-option java_package = "com.google.protobuf.compiler";
-option java_outer_classname = "PluginProtos";
-
-option go_package = "github.com/golang/protobuf/protoc-gen-go/plugin;plugin_go";
-
-import "google/protobuf/descriptor.proto";
-
-// The version number of protocol compiler.
-message Version {
-  optional int32 major = 1;
-  optional int32 minor = 2;
-  optional int32 patch = 3;
-  // A suffix for alpha, beta or rc release, e.g., "alpha-1", "rc2". It should
-  // be empty for mainline stable releases.
-  optional string suffix = 4;
-}
-
-// An encoded CodeGeneratorRequest is written to the plugin's stdin.
-message CodeGeneratorRequest {
-  // The .proto files that were explicitly listed on the command-line.  The
-  // code generator should generate code only for these files.  Each file's
-  // descriptor will be included in proto_file, below.
-  repeated string file_to_generate = 1;
-
-  // The generator parameter passed on the command-line.
-  optional string parameter = 2;
-
-  // FileDescriptorProtos for all files in files_to_generate and everything
-  // they import.  The files will appear in topological order, so each file
-  // appears before any file that imports it.
-  //
-  // protoc guarantees that all proto_files will be written after
-  // the fields above, even though this is not technically guaranteed by the
-  // protobuf wire format.  This theoretically could allow a plugin to stream
-  // in the FileDescriptorProtos and handle them one by one rather than read
-  // the entire set into memory at once.  However, as of this writing, this
-  // is not similarly optimized on protoc's end -- it will store all fields in
-  // memory at once before sending them to the plugin.
-  //
-  // Type names of fields and extensions in the FileDescriptorProto are always
-  // fully qualified.
-  repeated FileDescriptorProto proto_file = 15;
-
-  // The version number of protocol compiler.
-  optional Version compiler_version = 3;
-
-}
-
-// The plugin writes an encoded CodeGeneratorResponse to stdout.
-message CodeGeneratorResponse {
-  // Error message.  If non-empty, code generation failed.  The plugin process
-  // should exit with status code zero even if it reports an error in this way.
-  //
-  // This should be used to indicate errors in .proto files which prevent the
-  // code generator from generating correct code.  Errors which indicate a
-  // problem in protoc itself -- such as the input CodeGeneratorRequest being
-  // unparseable -- should be reported by writing a message to stderr and
-  // exiting with a non-zero status code.
-  optional string error = 1;
-
-  // Represents a single generated file.
-  message File {
-    // The file name, relative to the output directory.  The name must not
-    // contain "." or ".." components and must be relative, not be absolute (so,
-    // the file cannot lie outside the output directory).  "/" must be used as
-    // the path separator, not "\".
-    //
-    // If the name is omitted, the content will be appended to the previous
-    // file.  This allows the generator to break large files into small chunks,
-    // and allows the generated text to be streamed back to protoc so that large
-    // files need not reside completely in memory at one time.  Note that as of
-    // this writing protoc does not optimize for this -- it will read the entire
-    // CodeGeneratorResponse before writing files to disk.
-    optional string name = 1;
-
-    // If non-empty, indicates that the named file should already exist, and the
-    // content here is to be inserted into that file at a defined insertion
-    // point.  This feature allows a code generator to extend the output
-    // produced by another code generator.  The original generator may provide
-    // insertion points by placing special annotations in the file that look
-    // like:
-    //   @@protoc_insertion_point(NAME)
-    // The annotation can have arbitrary text before and after it on the line,
-    // which allows it to be placed in a comment.  NAME should be replaced with
-    // an identifier naming the point -- this is what other generators will use
-    // as the insertion_point.  Code inserted at this point will be placed
-    // immediately above the line containing the insertion point (thus multiple
-    // insertions to the same point will come out in the order they were added).
-    // The double-@ is intended to make it unlikely that the generated code
-    // could contain things that look like insertion points by accident.
-    //
-    // For example, the C++ code generator places the following line in the
-    // .pb.h files that it generates:
-    //   // @@protoc_insertion_point(namespace_scope)
-    // This line appears within the scope of the file's package namespace, but
-    // outside of any particular class.  Another plugin can then specify the
-    // insertion_point "namespace_scope" to generate additional classes or
-    // other declarations that should be placed in this scope.
-    //
-    // Note that if the line containing the insertion point begins with
-    // whitespace, the same whitespace will be added to every line of the
-    // inserted text.  This is useful for languages like Python, where
-    // indentation matters.  In these languages, the insertion point comment
-    // should be indented the same amount as any inserted code will need to be
-    // in order to work correctly in that context.
-    //
-    // The code generator that generates the initial file and the one which
-    // inserts into it must both run as part of a single invocation of protoc.
-    // Code generators are executed in the order in which they appear on the
-    // command line.
-    //
-    // If |insertion_point| is present, |name| must also be present.
-    optional string insertion_point = 2;
-
-    // The file contents.
-    optional string content = 15;
-  }
-  repeated File file = 15;
-}