func elmFieldType(field *descriptor.FieldDescriptorProto) string {
inFieldName := field.GetTypeName()
packageName, messageName := convert(inFieldName)
if packageName == "" {
return messageName
} else {
return packageName + "." + messageName
}
}
func convertField(curPkg *ProtoPackage, desc *descriptor.FieldDescriptorProto, msg *descriptor.DescriptorProto) (*Field, error) {
field := &Field{
Name: desc.GetName(),
}
switch desc.GetType() {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE,
descriptor.FieldDescriptorProto_TYPE_FLOAT:
field.Type = "FLOAT"
case descriptor.FieldDescriptorProto_TYPE_INT64,
descriptor.FieldDescriptorProto_TYPE_UINT64,
descriptor.FieldDescriptorProto_TYPE_INT32,
descriptor.FieldDescriptorProto_TYPE_UINT32,
descriptor.FieldDescriptorProto_TYPE_FIXED64,
descriptor.FieldDescriptorProto_TYPE_FIXED32,
descriptor.FieldDescriptorProto_TYPE_SFIXED32,
descriptor.FieldDescriptorProto_TYPE_SFIXED64,
descriptor.FieldDescriptorProto_TYPE_SINT32,
descriptor.FieldDescriptorProto_TYPE_SINT64:
field.Type = "INTEGER"
case descriptor.FieldDescriptorProto_TYPE_STRING,
descriptor.FieldDescriptorProto_TYPE_BYTES,
descriptor.FieldDescriptorProto_TYPE_ENUM:
field.Type = "STRING"
case descriptor.FieldDescriptorProto_TYPE_BOOL:
field.Type = "BOOLEAN"
case descriptor.FieldDescriptorProto_TYPE_GROUP,
descriptor.FieldDescriptorProto_TYPE_MESSAGE:
field.Type = "RECORD"
default:
return nil, fmt.Errorf("unrecognized field type: %s", desc.GetType().String())
}
switch desc.GetLabel() {
case descriptor.FieldDescriptorProto_LABEL_OPTIONAL:
field.Mode = "NULLABLE"
case descriptor.FieldDescriptorProto_LABEL_REQUIRED:
field.Mode = "REQUIRED"
case descriptor.FieldDescriptorProto_LABEL_REPEATED:
field.Mode = "REPEATED"
default:
return nil, fmt.Errorf("unrecognized field label: %s", desc.GetLabel().String())
}
if field.Type != "RECORD" {
return field, nil
}
recordType, ok := curPkg.lookupType(desc.GetTypeName())
if !ok {
return nil, fmt.Errorf("no such message type named %s", desc.GetTypeName())
}
var err error
field.Fields, err = convertMessageType(curPkg, recordType)
if err != nil {
return nil, err
}
return field, nil
}
