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functions.go
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functions.go
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package majsoulgo
import (
"errors"
"strings"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
)
func GetMessageFullName(pbMsg proto.Message, fd protoreflect.FileDescriptor) (string, error) {
services := fd.Services()
for i := 0; i < services.Len(); i++ {
s := services.Get(i)
methods := s.Methods()
for j := 0; j < methods.Len(); j++ {
m := methods.Get(j)
msgName := pbMsg.ProtoReflect().Descriptor().Name()
if msgName == m.Input().Name() {
return string(m.FullName()), nil
}
if msgName == m.Output().Name() {
return string(m.FullName()), nil
}
}
}
return "", errors.New("could not find message name")
}
func FindMethodInputName(fd protoreflect.FileDescriptor, methodFullName string) (string, error) {
split := strings.Split(methodFullName, ".")
if len(split) < 3 {
return "", errors.New("GetMethodInput: incomplete name")
}
serviceName := split[1]
methodName := split[2]
service := fd.Services().ByName(protoreflect.Name(split[1]))
if service == nil {
return "", errors.New("GetMethodInput: no service named " + serviceName)
}
method := service.Methods().ByName(protoreflect.Name(split[2]))
if method == nil {
return "", errors.New("GetMethodInput: no method name " + methodName)
}
return string(method.Input().Name()), nil
}
func FindMethodOutputName(fd protoreflect.FileDescriptor, methodFullName string) (string, error) {
split := strings.Split(methodFullName, ".")
if len(split) < 3 {
return "", errors.New("GetMethodOutput: incomplete name")
}
serviceName := split[1]
methodName := split[2]
service := fd.Services().ByName(protoreflect.Name(split[1]))
if service == nil {
return "", errors.New("GetMethodOutput: no service named " + serviceName)
}
method := service.Methods().ByName(protoreflect.Name(split[2]))
if method == nil {
return "", errors.New("GetMethodOutput: no method name " + methodName)
}
return string(method.Output().Name()), nil
}