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- package test
- import (
- "bytes"
- "encoding/base64"
- "encoding/json"
- "strings"
- )
- type StringMarshaler string
- func (m StringMarshaler) encode(str string) string {
- buf := bytes.Buffer{}
- b64 := base64.NewEncoder(base64.StdEncoding, &buf)
- if _, err := b64.Write([]byte(str)); err != nil {
- panic(err)
- }
- if err := b64.Close(); err != nil {
- panic(err)
- }
- return buf.String()
- }
- func (m StringMarshaler) decode(str string) string {
- if len(str) == 0 {
- return ""
- }
- b64 := base64.NewDecoder(base64.StdEncoding, strings.NewReader(str))
- bs := make([]byte, len(str))
- if n, err := b64.Read(bs); err != nil {
- panic(err)
- } else {
- bs = bs[:n]
- }
- return string(bs)
- }
- func (m StringMarshaler) MarshalJSON() ([]byte, error) {
- return []byte(`"MANUAL__` + m.encode(string(m)) + `"`), nil
- }
- func (m *StringMarshaler) UnmarshalJSON(text []byte) error {
- *m = StringMarshaler(m.decode(strings.TrimPrefix(strings.Trim(string(text), `"`), "MANUAL__")))
- return nil
- }
- var _ json.Marshaler = *new(StringMarshaler)
- var _ json.Unmarshaler = new(StringMarshaler)
- func init() {
- testCases = append(testCases, (*StringMarshaler)(nil))
- }
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