20 lines
372 B
Go
20 lines
372 B
Go
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package opt
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import (
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"fmt"
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"encoding/json"
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)
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type jsonMarshaler interface {
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bool | string
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}
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// MarshalJSON makes it so json.Marshaler is implemented.
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func (receiver Optional[jsonMarshal]) MarshalJSON() ([]byte, error) {
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if !receiver.something {
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return nil, fmt.Errorf("cannot marshal opt.Nothing[%T]()", receiver.value)
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}
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return json.Marshal(receiver.value)
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}
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