| 677 | } |
| 678 | |
| 679 | func (me mapEncoder) encode(e *encodeState, v reflect.Value, opts encOpts) { |
| 680 | if v.IsNil() { |
| 681 | e.WriteString("null") |
| 682 | return |
| 683 | } |
| 684 | e.WriteByte('{') |
| 685 | |
| 686 | // Extract and sort the keys. |
| 687 | keys := v.MapKeys() |
| 688 | sv := make([]reflectWithString, len(keys)) |
| 689 | for i, v := range keys { |
| 690 | sv[i].v = v |
| 691 | if err := sv[i].resolve(); err != nil { |
| 692 | e.error(&MarshalerError{v.Type(), err}) |
| 693 | } |
| 694 | } |
| 695 | sort.Slice(sv, func(i, j int) bool { return sv[i].s < sv[j].s }) |
| 696 | |
| 697 | for i, kv := range sv { |
| 698 | if i > 0 { |
| 699 | e.WriteByte(',') |
| 700 | } |
| 701 | e.string(kv.s, opts.escapeHTML) |
| 702 | e.WriteByte(':') |
| 703 | me.elemEnc(e, v.MapIndex(kv.v), opts) |
| 704 | } |
| 705 | e.WriteByte('}') |
| 706 | } |
| 707 | |
| 708 | func newMapEncoder(t reflect.Type) encoderFunc { |
| 709 | switch t.Key().Kind() { |