60 lines
1.0 KiB
Go
60 lines
1.0 KiB
Go
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package jsonint
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import (
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"encoding/json"
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"strconv"
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"sourcecode.social/reiver/go-erorr"
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"sourcecode.social/reiver/go-opt"
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)
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var _ json.Marshaler = Int{}
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var _ json.Unmarshaler = new(Int)
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type Int struct {
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value opt.Optional[string]
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}
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func Nothing() Int {
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return Int{}
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}
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func Int64(value int64) Int {
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return Int{
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value: opt.Something(strconv.FormatInt(value, 10)),
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}
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}
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func Uint64(value uint64) Int {
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return Int{
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value: opt.Something(strconv.FormatUint(value, 10)),
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}
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}
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func (receiver Int) Get() (string, bool) {
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return receiver.value.Get()
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}
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func (receiver Int) MarshalJSON() ([]byte, error) {
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value, found := receiver.value.Get()
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if !found {
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return nil, errCannotMarshalNothingIntoJSON
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}
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return []byte(value), nil
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}
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func (receiver *Int) UnmarshalJSON(data []byte) error {
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if nil == receiver {
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return errNilReceiver
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}
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if !isNumeric(data) {
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return erorr.Errorf("jsonint: cannot unmarshal %q into value of type %T", data, Int{})
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}
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receiver.value = opt.Something(string(data))
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return nil
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}
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