/
types.go
213 lines (169 loc) · 3.57 KB
/
types.go
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package proto
import (
"fmt"
"sort"
)
type Service struct {
ServiceName string
ProtoPackage string
Methods []Method
Messages []Message
//Enums []Enum
}
type Method struct {
Name string
RequestMessage string
ResponseMessage string
}
type Message struct {
Name string
Fields []Field
}
type Field struct {
Name string
Type string
IsNestedMessage bool
}
func (s Service) Method(
methodName string,
) (Method, error) {
for _, m := range s.Methods {
if m.Name == methodName {
return m, nil
}
}
return Method{}, fmt.Errorf("No such method '%s'", methodName)
}
func (s Service) Message(
messageName string,
) (Message, error) {
for _, m := range s.Messages {
if m.Name == messageName {
return m, nil
}
}
return Message{}, fmt.Errorf("No such message '%s'", messageName)
}
func (s Service) MethodRequestMessage(
methodName string,
) (Message, error) {
method, err := s.Method(methodName)
if err != nil {
return Message{}, err
}
message, err := s.Message(method.RequestMessage)
if err != nil {
return Message{}, fmt.Errorf("No such request message for method '%+v'", method)
}
return message, nil
}
func (s Service) MethodResponseMessage(
methodName string,
) (Message, error) {
method, err := s.Method(methodName)
if err != nil {
return Message{}, err
}
message, err := s.Message(method.ResponseMessage)
if err != nil {
return Message{}, fmt.Errorf("No such response message for method '%+v'", method)
}
return message, nil
}
func (s Service) MethodRequestFields(
methodName string,
) ([]Field, error) {
message, err := s.MethodRequestMessage(methodName)
if err != nil {
return nil, err
}
return message.Fields, nil
}
func (s Service) MethodResponseFields(
methodName string,
) ([]Field, error) {
message, err := s.MethodResponseMessage(methodName)
if err != nil {
return nil, err
}
return message.Fields, nil
}
func (s Service) MethodResponseTypes(
methodName string,
) ([]string, error) {
message, err := s.MethodResponseMessage(methodName)
if err != nil {
return nil, err
}
return message.FieldTypes(), nil
}
func (m Message) FieldNames() []string {
types := make([]string, len(m.Fields))
for i := range m.Fields {
types[i] = m.Fields[i].Name
}
return types
}
func (m Message) FieldTypes() []string {
types := make([]string, len(m.Fields))
for i := range m.Fields {
types[i] = m.Fields[i].Type
}
return types
}
// NestedMessages returns all of the messages that are
// nested within any other message in the proto interface
func (s Service) NestedMessages(
) []Message {
nestedSet := make(map[string]Message)
for _, m := range s.Messages {
for _, f := range m.Fields {
nestedMessage, err := s.Message(f.Type)
if err != nil {
continue // Not a nested type
}
nestedSet[nestedMessage.Name] = nestedMessage
}
}
msgs := make([]Message, 0, len(nestedSet))
for _, m := range nestedSet {
msgs = append(msgs, m)
}
sort.Slice(msgs, func(i, j int) bool {
return msgs[i].Name < msgs[j].Name
})
return msgs
}
func (s Service) IsMessage(
name string,
) bool {
for _, m := range s.Messages {
if m.Name == name {
return true
}
}
return false
}
func (s Service) MethodUsesNestedMessages(
methodName string,
) (bool, error) {
reqFields, err := s.MethodRequestFields(methodName)
if err != nil {
return false, err
}
for _, f := range reqFields {
if f.IsNestedMessage {
return true, nil
}
}
resFields, err := s.MethodResponseFields(methodName)
if err != nil {
return false, err
}
for _, f := range resFields {
if f.IsNestedMessage {
return true, nil
}
}
return false, nil
}