-
Notifications
You must be signed in to change notification settings - Fork 223
/
json.go
68 lines (58 loc) 路 1.41 KB
/
json.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
package json
import (
"encoding/json"
"reflect"
"google.golang.org/protobuf/encoding/protojson"
"google.golang.org/protobuf/proto"
"github.com/go-eagle/eagle/pkg/encoding"
)
// Name is the name registered for the json codec.
const Name = "json"
var (
// MarshalOptions is a configurable JSON format marshaller.
MarshalOptions = protojson.MarshalOptions{
EmitUnpopulated: true,
}
// UnmarshalOptions is a configurable JSON format parser.
UnmarshalOptions = protojson.UnmarshalOptions{
DiscardUnknown: true,
}
)
func init() {
encoding.RegisterCodec(codec{})
}
// codec is a Codec implementation with json.
type codec struct{}
func (codec) Marshal(v interface{}) ([]byte, error) {
switch m := v.(type) {
case json.Marshaler:
return m.MarshalJSON()
case proto.Message:
return MarshalOptions.Marshal(m)
default:
return json.Marshal(m)
}
}
func (codec) Unmarshal(data []byte, v interface{}) error {
switch m := v.(type) {
case json.Unmarshaler:
return m.UnmarshalJSON(data)
case proto.Message:
return UnmarshalOptions.Unmarshal(data, m)
default:
rv := reflect.ValueOf(v)
for rv := rv; rv.Kind() == reflect.Ptr; {
if rv.IsNil() {
rv.Set(reflect.New(rv.Type().Elem()))
}
rv = rv.Elem()
}
if m, ok := reflect.Indirect(rv).Interface().(proto.Message); ok {
return UnmarshalOptions.Unmarshal(data, m)
}
return json.Unmarshal(data, m)
}
}
func (codec) Name() string {
return Name
}