func convertExtraField()

in pkg/converter/convert.go [202:249]

38 lines of code
9 McCabe index (conditional complexity)


func convertExtraField(curPkg *ProtoPackage, extraFieldDefinition string, parentMessages map[*descriptor.DescriptorProto]bool) (*Field, error) {
	parts := strings.Split(extraFieldDefinition, ":")
	if len(parts) < 2 {
		return nil, fmt.Errorf("expecting at least 2 parts in extra field definition separated by colon, got %d", len(parts))
	}

	field := &Field{
		Name: parts[0],
		Type: parts[1],
		Mode: "NULLABLE",
	}

	modeIndex := 2
	if field.Type == "RECORD" {
		modeIndex = 3
	}
	if len(parts) > modeIndex {
		field.Mode = parts[modeIndex]
	}

	if field.Type != "RECORD" {
		return field, nil
	}

	if len(parts) < 3 {
		return nil, fmt.Errorf("extra field %s has no type defined", field.Type)
	}

	typeName := parts[2]

	if t, ok := typeFromWKT[typeName]; ok {
		field.Type = t
		return field, nil
	}

	fields, err := convertFieldsForType(curPkg, typeName, parentMessages)
	if err != nil {
		return nil, err
	}

	if len(fields) == 0 { // discard RECORDs that would have zero fields
		return nil, nil
	}

	field.Fields = fields

	return field, nil
}