frostfs-api-go/v2/accounting/marshal.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

121 lines
2.1 KiB
Go

package accounting
import (
protoutil "github.com/nspcc-dev/neofs-api-go/util/proto"
accounting "github.com/nspcc-dev/neofs-api-go/v2/accounting/grpc"
"google.golang.org/protobuf/proto"
)
const (
decimalValueField = 1
decimalPrecisionField = 2
balanceReqBodyOwnerField = 1
balanceRespBodyDecimalField = 1
)
func (d *Decimal) StableMarshal(buf []byte) ([]byte, error) {
if d == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, d.StableSize())
}
var (
offset, n int
err error
)
n, err = protoutil.Int64Marshal(decimalValueField, buf[offset:], d.val)
if err != nil {
return nil, err
}
offset += n
n, err = protoutil.UInt32Marshal(decimalPrecisionField, buf[offset:], d.prec)
if err != nil {
return nil, err
}
return buf, nil
}
func (d *Decimal) StableSize() (size int) {
if d == nil {
return 0
}
size += protoutil.Int64Size(decimalValueField, d.val)
size += protoutil.UInt32Size(decimalPrecisionField, d.prec)
return size
}
func (d *Decimal) Unmarshal(data []byte) error {
m := new(accounting.Decimal)
if err := proto.Unmarshal(data, m); err != nil {
return err
}
*d = *DecimalFromGRPCMessage(m)
return nil
}
func (b *BalanceRequestBody) StableMarshal(buf []byte) ([]byte, error) {
if b == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, b.StableSize())
}
_, err := protoutil.NestedStructureMarshal(balanceReqBodyOwnerField, buf, b.ownerID)
if err != nil {
return nil, err
}
return buf, nil
}
func (b *BalanceRequestBody) StableSize() (size int) {
if b == nil {
return 0
}
size = protoutil.NestedStructureSize(balanceReqBodyOwnerField, b.ownerID)
return size
}
func (br *BalanceResponseBody) StableMarshal(buf []byte) ([]byte, error) {
if br == nil {
return []byte{}, nil
}
if buf == nil {
buf = make([]byte, br.StableSize())
}
_, err := protoutil.NestedStructureMarshal(balanceRespBodyDecimalField, buf, br.bal)
if err != nil {
return nil, err
}
return buf, nil
}
func (br *BalanceResponseBody) StableSize() (size int) {
if br == nil {
return 0
}
size = protoutil.NestedStructureSize(balanceRespBodyDecimalField, br.bal)
return size
}