status-go/services/wallet/bigint/big_int.go

29 lines
456 B
Go

package bigint
import (
"fmt"
"math/big"
"strings"
)
type BigInt struct {
*big.Int
}
func (b BigInt) MarshalJSON() ([]byte, error) {
return []byte("\"" + b.String() + "\""), nil
}
func (b *BigInt) UnmarshalJSON(p []byte) error {
if string(p) == "null" {
return nil
}
z := new(big.Int)
_, ok := z.SetString(strings.Trim(string(p), "\""), 10)
if !ok {
return fmt.Errorf("not a valid big integer: %s", string(p))
}
b.Int = z
return nil
}