descriptor

package
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 Go to latest Published: Oct 27, 2020 License: BSD-3-Clause Imports: 15 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func IsWellKnownType 

func IsWellKnownType(typeName string) bool

IsWellKnownType returns true if the provided fully qualified type name is considered 'well-known'.

Types

type Binding 

type Binding struct {
	// Method is the method which the endpoint is bound to.
	Method *Method
	// Index is a zero-origin index of the binding in the target method
	Index int
	// PathTmpl is path template where this method is mapped to.
	PathTmpl httprule.Template
	// HTTPMethod is the HTTP method which this method is mapped to.
	HTTPMethod string
	// PathParams is the list of parameters provided in HTTP request paths.
	PathParams []Parameter
	// Body describes parameters provided in HTTP request body.
	Body *Body
	// ResponseBody describes field in response struct to marshal in HTTP response body.
	ResponseBody *Body
}

Binding describes how an HTTP endpoint is bound to a gRPC method.

func (*Binding) ExplicitParams 

func (b *Binding) ExplicitParams() []string

ExplicitParams returns a list of explicitly bound parameters of "b", i.e. a union of field path for body and field paths for path parameters.

type Body 

type Body struct {
	// FieldPath is a path to a proto field which the (request|response) body is mapped to.
	// The (request|response) body is mapped to the (request|response) type itself if FieldPath is empty.
	FieldPath FieldPath
}

Body describes a http (request|response) body to be sent to the (method|client). This is used in body and response_body options in google.api.HttpRule

func (Body) AssignableExpr 

func (b Body) AssignableExpr(msgExpr string) string

AssignableExpr returns an assignable expression in Go to be used to initialize method request object. It starts with "msgExpr", which is the go expression of the method request object.

type Enum 

type Enum struct {
	// File is the file where the enum is defined
	File *File
	// Outers is a list of outer messages if this enum is a nested type.
	Outers []string
	*descriptor.EnumDescriptorProto

	Index int
}

Enum describes a protocol buffer enum types

func (*Enum) FQEN 

func (e *Enum) FQEN() string

FQEN returns a fully qualified enum name of this enum.

func (*Enum) GoType 

func (e *Enum) GoType(currentPackage string) string

GoType returns a go type name for the enum type. It prefixes the type name with the package alias if its belonging package is not "currentPackage".

type Field 

type Field struct {
	// Message is the message type which this field belongs to.
	Message *Message
	// FieldMessage is the message type of the field.
	FieldMessage *Message
	*descriptor.FieldDescriptorProto
}

Field wraps descriptor.FieldDescriptorProto for richer features.

type FieldPath 

type FieldPath []FieldPathComponent

FieldPath is a path to a field from a request message.

func (FieldPath) AssignableExpr 

func (p FieldPath) AssignableExpr(msgExpr string) string

AssignableExpr is an assignable expression in Go to be used to assign a value to the target field. It starts with "msgExpr", which is the go expression of the method request object.

func (FieldPath) IsNestedProto3 

func (p FieldPath) IsNestedProto3() bool

IsNestedProto3 indicates whether the FieldPath is a nested Proto3 path.

func (FieldPath) String 

func (p FieldPath) String() string

String returns a string representation of the field path.

type FieldPathComponent 

type FieldPathComponent struct {
	// Name is a name of the proto field which this component corresponds to.
	// TODO(yugui) is this necessary?
	Name string
	// Target is the proto field which this component corresponds to.
	Target *Field
}

FieldPathComponent is a path component in FieldPath

func (FieldPathComponent) AssignableExpr 

func (c FieldPathComponent) AssignableExpr() string

AssignableExpr returns an assignable expression in go for this field.

func (FieldPathComponent) ValueExpr 

func (c FieldPathComponent) ValueExpr() string

ValueExpr returns an expression in go for this field.

type File 

type File struct {
	*descriptor.FileDescriptorProto
	// GoPkg is the go package of the go file generated from this file..
	GoPkg GoPackage
	// Messages is the list of messages defined in this file.
	Messages []*Message
	// Enums is the list of enums defined in this file.
	Enums []*Enum
	// Services is the list of services defined in this file.
	Services []*Service
}

File wraps descriptor.FileDescriptorProto for richer features.

type GoPackage 

type GoPackage struct {
	// Path is the package path to the package.
	Path string
	// Name is the package name of the package
	Name string
	// Alias is an alias of the package unique within the current invokation of grpc-gateway generator.
	Alias string
}

GoPackage represents a golang package

func (GoPackage) Standard 

func (p GoPackage) Standard() bool

Standard returns whether the import is a golang standard package.

func (GoPackage) String 

func (p GoPackage) String() string

String returns a string representation of this package in the form of import line in golang.

type GrpcAPIService 

type GrpcAPIService struct {
	// Http Rule. Named Http in the actual proto. Changed to suppress linter warning.
	HTTP *annotations.Http `protobuf:"bytes,9,opt,name=http" json:"http,omitempty"`
}

GrpcAPIService represents a stripped down version of google.api.Service . Compare to https://github.com/googleapis/googleapis/blob/master/google/api/service.proto The original imports 23 other protobuf files we are not interested in. If a significant subset (>50%) of these start being reproduced in this file we should swap to using the full generated version instead.

For the purposes of the gateway generator we only consider a small subset of all available features google supports in their service descriptions. Thanks to backwards compatibility guarantees by protobuf it is safe for us to remove the other fields. We also only implement the absolute minimum of protobuf generator boilerplate to use our simplified version. These should be pretty stable too.

func (*GrpcAPIService) ProtoMessage 

func (*GrpcAPIService) ProtoMessage()

ProtoMessage returns an empty GrpcAPIService element

func (*GrpcAPIService) Reset 

func (m *GrpcAPIService) Reset()

Reset resets the GrpcAPIService

func (*GrpcAPIService) String 

func (m *GrpcAPIService) String() string

String returns the string representation of the GrpcAPIService

type Message 

type Message struct {
	// File is the file where the message is defined
	File *File
	// Outers is a list of outer messages if this message is a nested type.
	Outers []string
	*descriptor.DescriptorProto
	Fields []*Field

	// Index is proto path index of this message in File.
	Index int
}

Message describes a protocol buffer message types

func (*Message) FQMN 

func (m *Message) FQMN() string

FQMN returns a fully qualified message name of this message.

func (*Message) GoType 

func (m *Message) GoType(currentPackage string) string

GoType returns a go type name for the message type. It prefixes the type name with the package alias if its belonging package is not "currentPackage".

type Method 

type Method struct {
	// Service is the service which this method belongs to.
	Service *Service
	*descriptor.MethodDescriptorProto

	// RequestType is the message type of requests to this method.
	RequestType *Message
	// ResponseType is the message type of responses from this method.
	ResponseType *Message
	Bindings     []*Binding
}

Method wraps descriptor.MethodDescriptorProto for richer features.

func (*Method) FQMN 

func (m *Method) FQMN() string

FQMN returns a fully qualified rpc method name of this method.

type Parameter 

type Parameter struct {
	// FieldPath is a path to a proto field which this parameter is mapped to.
	FieldPath
	// Target is the proto field which this parameter is mapped to.
	Target *Field
	// Method is the method which this parameter is used for.
	Method *Method
}

Parameter is a parameter provided in http requests

func (Parameter) ConvertFuncExpr 

func (p Parameter) ConvertFuncExpr() (string, error)

ConvertFuncExpr returns a go expression of a converter function. The converter function converts a string into a value for the parameter.

func (Parameter) IsEnum 

func (p Parameter) IsEnum() bool

IsEnum returns true if the field is an enum type, otherwise false is returned.

func (Parameter) IsProto2 

func (p Parameter) IsProto2() bool

IsProto2 returns true if the field is proto2, otherwise false is returned.

func (Parameter) IsRepeated 

func (p Parameter) IsRepeated() bool

IsRepeated returns true if the field is repeated, otherwise false is returned.

type Registry 

type Registry struct {
	// contains filtered or unexported fields
}

Registry is a registry of information extracted from plugin.CodeGeneratorRequest.

func NewRegistry 

func NewRegistry() *Registry

NewRegistry returns a new Registry.

func (*Registry) AddExternalHTTPRule 

func (r *Registry) AddExternalHTTPRule(qualifiedMethodName string, rule *annotations.HttpRule)

AddExternalHTTPRule adds an external http rule for the given fully qualified service method name

func (*Registry) AddPkgMap 

func (r *Registry) AddPkgMap(file, protoPkg string)

AddPkgMap adds a mapping from a .proto file to proto package name.

func (*Registry) GetAllFQENs 

func (r *Registry) GetAllFQENs() []string

GetAllFQENs returns a list of all FQENs

func (*Registry) GetAllFQMNs 

func (r *Registry) GetAllFQMNs() []string

GetAllFQMNs returns a list of all FQMNs

func (*Registry) GetAllowColonFinalSegments 

func (r *Registry) GetAllowColonFinalSegments() bool

GetAllowColonFinalSegments returns allowColonFinalSegments

func (*Registry) GetDisableDefaultErrors 

func (r *Registry) GetDisableDefaultErrors() bool

GetDisableDefaultErrors returns disableDefaultErrors

func (*Registry) GetEnumsAsInts 

func (r *Registry) GetEnumsAsInts() bool

GetEnumsAsInts returns enumsAsInts

func (*Registry) GetMergeFileName 

func (r *Registry) GetMergeFileName() string

GetMergeFileName return the target merge swagger file name

func (*Registry) GetRepeatedPathParamSeparator 

func (r *Registry) GetRepeatedPathParamSeparator() rune

GetRepeatedPathParamSeparator returns a rune spcifying how path parameter repeated fields are separated.

func (*Registry) GetRepeatedPathParamSeparatorName 

func (r *Registry) GetRepeatedPathParamSeparatorName() string

GetRepeatedPathParamSeparatorName returns the name path parameter repeated fields repeatedFieldSeparator. I.e. 'csv', 'pipe', 'ssv' or 'tsv'

func (*Registry) GetSimpleOperationIDs 

func (r *Registry) GetSimpleOperationIDs() bool

GetSimpleOperationIDs returns simpleOperationIDs

func (*Registry) GetUseFQNForSwaggerName 

func (r *Registry) GetUseFQNForSwaggerName() bool

GetUseFQNForSwaggerName returns useFQNForSwaggerName

func (*Registry) GetUseGoTemplate 

func (r *Registry) GetUseGoTemplate() bool

GetUseGoTemplate returns useGoTemplate

func (*Registry) GetUseJSONNamesForFields 

func (r *Registry) GetUseJSONNamesForFields() bool

GetUseJSONNamesForFields returns useJSONNamesForFields

func (*Registry) IsAllowMerge 

func (r *Registry) IsAllowMerge() bool

IsAllowMerge whether generation one swagger file out of multiple protos

func (*Registry) IsAllowRepeatedFieldsInBody 

func (r *Registry) IsAllowRepeatedFieldsInBody() bool

IsAllowRepeatedFieldsInBody checks if repeated field can be used in `body` and `response_body` (`google.api.http` annotation option) field path or not

func (*Registry) IsIncludePackageInTags 

func (r *Registry) IsIncludePackageInTags() bool

IsIncludePackageInTags checks whether the package name defined in the `package` directive in the proto file can be prepended to the gRPC service name in the `Tags` field of every operation.

func (*Registry) Load 

func (r *Registry) Load(req *plugin.CodeGeneratorRequest) error

Load loads definitions of services, methods, messages, enumerations and fields from "req".

func (*Registry) LoadGrpcAPIServiceFromYAML 

func (r *Registry) LoadGrpcAPIServiceFromYAML(yamlFile string) error

LoadGrpcAPIServiceFromYAML loads a gRPC API Configuration from the given YAML file and registers the HttpRule descriptions contained in it as externalHTTPRules in the given registry. This must be done before loading the proto file.

You can learn more about gRPC API Service descriptions from google's documentation at https://cloud.google.com/endpoints/docs/grpc/grpc-service-config

Note that for the purposes of the gateway generator we only consider a subset of all available features google supports in their service descriptions.

func (*Registry) LookupEnum 

func (r *Registry) LookupEnum(location, name string) (*Enum, error)

LookupEnum looks up a enum type by "name". It tries to resolve "name" from "location" if "name" is a relative enum name.

func (*Registry) LookupExternalHTTPRules 

func (r *Registry) LookupExternalHTTPRules(qualifiedMethodName string) []*annotations.HttpRule

LookupExternalHTTPRules looks up external http rules by fully qualified service method name

func (*Registry) LookupFile 

func (r *Registry) LookupFile(name string) (*File, error)

LookupFile looks up a file by name.

func (*Registry) LookupMsg 

func (r *Registry) LookupMsg(location, name string) (*Message, error)

LookupMsg looks up a message type by "name". It tries to resolve "name" from "location" if "name" is a relative message name.

func (*Registry) ReserveGoPackageAlias 

func (r *Registry) ReserveGoPackageAlias(alias, pkgpath string) error

ReserveGoPackageAlias reserves the unique alias of go package. If succeeded, the alias will be never used for other packages in generated go files. If failed, the alias is already taken by another package, so you need to use another alias for the package in your go files.

func (*Registry) SetAllowColonFinalSegments 

func (r *Registry) SetAllowColonFinalSegments(use bool)

SetAllowColonFinalSegments sets allowColonFinalSegments

func (*Registry) SetAllowDeleteBody 

func (r *Registry) SetAllowDeleteBody(allow bool)

SetAllowDeleteBody controls whether http delete methods may have a body or fail loading if encountered.

func (*Registry) SetAllowMerge 

func (r *Registry) SetAllowMerge(allow bool)

SetAllowMerge controls whether generation one swagger file out of multiple protos

func (*Registry) SetAllowRepeatedFieldsInBody 

func (r *Registry) SetAllowRepeatedFieldsInBody(allow bool)

SetAllowRepeatedFieldsInBody controls whether repeated field can be used in `body` and `response_body` (`google.api.http` annotation option) field path or not

func (*Registry) SetDisableDefaultErrors 

func (r *Registry) SetDisableDefaultErrors(use bool)

SetDisableDefaultErrors sets disableDefaultErrors

func (*Registry) SetEnumsAsInts 

func (r *Registry) SetEnumsAsInts(enumsAsInts bool)

SetEnumsAsInts set enumsAsInts

func (*Registry) SetImportPath 

func (r *Registry) SetImportPath(importPath string)

SetImportPath registers the importPath which is used as the package if no input files declare go_package. If it contains slashes, everything up to the rightmost slash is ignored.

func (*Registry) SetIncludePackageInTags 

func (r *Registry) SetIncludePackageInTags(allow bool)

SetIncludePackageInTags controls whether the package name defined in the `package` directive in the proto file can be prepended to the gRPC service name in the `Tags` field of every operation.

func (*Registry) SetMergeFileName 

func (r *Registry) SetMergeFileName(mergeFileName string)

SetMergeFileName controls the target swagger file name out of multiple protos

func (*Registry) SetPrefix 

func (r *Registry) SetPrefix(prefix string)

SetPrefix registers the prefix to be added to go package paths generated from proto package names.

func (*Registry) SetRepeatedPathParamSeparator 

func (r *Registry) SetRepeatedPathParamSeparator(name string) error

SetRepeatedPathParamSeparator sets how path parameter repeated fields are separated. Allowed names are 'csv', 'pipe', 'ssv' and 'tsv'.

func (*Registry) SetSimpleOperationIDs 

func (r *Registry) SetSimpleOperationIDs(use bool)

SetSimpleOperationIDs sets simpleOperationIDs

func (*Registry) SetUseFQNForSwaggerName 

func (r *Registry) SetUseFQNForSwaggerName(use bool)

SetUseFQNForSwaggerName sets useFQNForSwaggerName

func (*Registry) SetUseGoTemplate 

func (r *Registry) SetUseGoTemplate(use bool)

SetUseGoTemplate sets useGoTemplate

func (*Registry) SetUseJSONNamesForFields 

func (r *Registry) SetUseJSONNamesForFields(use bool)

SetUseJSONNamesForFields sets useJSONNamesForFields

func (*Registry) UnboundExternalHTTPRules 

func (r *Registry) UnboundExternalHTTPRules() []string

UnboundExternalHTTPRules returns the list of External HTTPRules which does not have a matching method in the registry

type Service 

type Service struct {
	// File is the file where this service is defined.
	File *File
	*descriptor.ServiceDescriptorProto
	// Methods is the list of methods defined in this service.
	Methods []*Method
}

Service wraps descriptor.ServiceDescriptorProto for richer features.

func (*Service) FQSN 

func (s *Service) FQSN() string

FQSN returns the fully qualified service name of this service.

Source Files

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