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package json
import (
"github.com/zclconf/go-cty/cty"
)
// SimpleJSONValue is a wrapper around cty.Value that adds implementations of
// json.Marshaler and json.Unmarshaler for simple-but-type-lossy automatic
// encoding and decoding of values.
//
// The couplet Marshal and Unmarshal both take extra type information to
// inform the encoding and decoding process so that all of the cty types
// can be represented even though JSON's type system is a subset.
//
// SimpleJSONValue instead takes the approach of discarding the value's type
// information and then deriving a new type from the stored structure when
// decoding. This results in the same data being returned but not necessarily
// with exactly the same type.
//
// For information on how types are inferred when decoding, see the
// documentation of the function ImpliedType.
type SimpleJSONValue struct {
cty.Value
}
// MarshalJSON is an implementation of json.Marshaler. See the documentation
// of SimpleJSONValue for more information.
func (v SimpleJSONValue) MarshalJSON() ([]byte, error) {
return Marshal(v.Value, v.Type())
}
// UnmarshalJSON is an implementation of json.Unmarshaler. See the
// documentation of SimpleJSONValue for more information.
func (v *SimpleJSONValue) UnmarshalJSON(buf []byte) error {
t, err := ImpliedType(buf)
if err != nil {
return err
}
v.Value, err = Unmarshal(buf, t)
return err
}
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