func processFile(inFile *descriptor.FileDescriptorProto) (*plugin.CodeGeneratorResponse_File, error) {
if inFile.GetSyntax() != "proto3" {
return nil, fmt.Errorf("Only proto3 syntax is supported")
}
outFile := &plugin.CodeGeneratorResponse_File{}
inFilePath := inFile.GetName()
inFileDir, inFileName := filepath.Split(inFilePath)
shortModuleName := firstUpper(strings.TrimSuffix(inFileName, ".proto"))
fullModuleName := ""
outFileName := ""
for _, segment := range strings.Split(inFileDir, "/") {
if segment == "" {
continue
}
fullModuleName += firstUpper(segment) + "."
outFileName += firstUpper(segment) + "/"
}
fullModuleName += shortModuleName
outFileName += shortModuleName + ".elm"
outFile.Name = proto.String(outFileName)
b := &bytes.Buffer{}
fg := NewFileGenerator(b)
fg.GenerateModule(fullModuleName)
fg.GenerateImports()
fg.GenerateRuntime()
var err error
// Top-level enums.
for _, inEnum := range inFile.GetEnumType() {
err = fg.GenerateEnumDefinition("", inEnum)
if err != nil {
return nil, err
}
err = fg.GenerateEnumDecoder("", inEnum)
if err != nil {
return nil, err
}
err = fg.GenerateEnumEncoder("", inEnum)
if err != nil {
return nil, err
}
}
// Top-level messages.
for _, inMessage := range inFile.GetMessageType() {
err = fg.GenerateEverything("", inMessage)
if err != nil {
return nil, err
}
}
outFile.Content = proto.String(b.String())
return outFile, nil
}
