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42 lines
714 B
Go

package wire
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import (
"encoding/json"
"fmt"
)
type Request struct {
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Seq int
Body Value
}
func (r Request) MarshalJSON() ([]byte, error) {
return json.Marshal([]interface{}{r.Seq, r.Body.NetTag(), r.Body})
}
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func (r *Request) UnmarshalJSON(b []byte) error {
var parts [3]json.RawMessage
if err := json.Unmarshal(b, &parts); err != nil {
return err
}
if err := json.Unmarshal(parts[0], &r.Seq); err != nil {
return err
}
var tag string
if err := json.Unmarshal(parts[1], &tag); err != nil {
return err
}
f, ok := registry[tag]
if !ok {
return fmt.Errorf("unknown tag: %q", tag)
}
v := f()
if err := json.Unmarshal(parts[2], v); err != nil {
return err
}
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r.Body = v
return nil
}