frostfs-api-go-pogpp/pkg/accounting/decimal.go
Leonard Lyubich 9bebc1247d [#168] accounting: Implement binary/JSON encoders/decoders on Decimal
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-11-13 18:07:26 +03:00

74 lines
1.8 KiB
Go

package accounting
import (
"github.com/nspcc-dev/neofs-api-go/v2/accounting"
)
// Decimal represents v2-compatible decimal number.
type Decimal accounting.Decimal
// NewDecimal creates, initializes and returns blank Decimal instance.
func NewDecimal() *Decimal {
return NewDecimalFromV2(new(accounting.Decimal))
}
// NewDecimalFromV2 converts v2 Decimal to Decimal.
func NewDecimalFromV2(d *accounting.Decimal) *Decimal {
return (*Decimal)(d)
}
// Value returns value of the decimal number.
func (d *Decimal) Value() int64 {
return (*accounting.Decimal)(d).
GetValue()
}
// SetValue sets value of the decimal number.
func (d *Decimal) SetValue(v int64) {
(*accounting.Decimal)(d).
SetValue(v)
}
// Precision returns precision of the decimal number.
func (d *Decimal) Precision() uint32 {
return (*accounting.Decimal)(d).
GetPrecision()
}
// SetPrecision sets precision of the decimal number.
func (d *Decimal) SetPrecision(p uint32) {
(*accounting.Decimal)(d).
SetPrecision(p)
}
// Marshal marshals Decimal into a protobuf binary form.
//
// Buffer is allocated when the argument is empty.
// Otherwise, the first buffer is used.
func (d *Decimal) Marshal(b ...[]byte) ([]byte, error) {
var buf []byte
if len(b) > 0 {
buf = b[0]
}
return (*accounting.Decimal)(d).
StableMarshal(buf)
}
// Unmarshal unmarshals protobuf binary representation of Decimal.
func (d *Decimal) Unmarshal(data []byte) error {
return (*accounting.Decimal)(d).
Unmarshal(data)
}
// MarshalJSON encodes Decimal to protobuf JSON format.
func (d *Decimal) MarshalJSON() ([]byte, error) {
return (*accounting.Decimal)(d).
MarshalJSON()
}
// UnmarshalJSON decodes Decimal from protobuf JSON format.
func (d *Decimal) UnmarshalJSON(data []byte) error {
return (*accounting.Decimal)(d).
UnmarshalJSON(data)
}