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builtin_json.go
48 lines (39 loc) · 806 Bytes
/
builtin_json.go
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package objects
import (
"encoding/json"
)
func builtinToJSON(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
res, err := json.Marshal(objectToInterface(args[0]))
if err != nil {
return nil, err
}
return &Bytes{Value: res}, nil
}
func builtinFromJSON(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
var target interface{}
switch o := args[0].(type) {
case *Bytes:
err := json.Unmarshal(o.Value, &target)
if err != nil {
return nil, err
}
case *String:
err := json.Unmarshal([]byte(o.Value), &target)
if err != nil {
return nil, err
}
default:
return nil, ErrInvalidTypeConversion
}
res, err := FromInterface(target)
if err != nil {
return nil, err
}
return res, nil
}