Function encodeStructWithFields

docstore/driver/codec.go:274–293

(v reflect.Value, fields fields.List, e Encoder)

}

func encodeStructWithFields(v reflect.Value, fields fields.List, e Encoder) error {
	e2 := e.EncodeMap(len(fields))
	for _, f := range fields {
		fv, ok := fieldByIndex(v, f.Index)
		if !ok {
			// if !ok, then f is a field in an embedded pointer to struct, and that embedded pointer
			// is nil in v. In other words, the field exists in the struct type, but not this particular
			// struct value. So we just ignore it.
			continue
		}
		if f.ParsedTag.(tagOptions).omitEmpty && IsEmptyValue(fv) {
			continue
		}
		if err := encode(fv, e2); err != nil {
			return err
		}
		e2.MapKey(f.Name)
	}
	return nil
}

// fieldByIndex retrieves the field of v at the given index if present.
// v must be a struct. index must refer to a valid field of v's type.