neo-go/pkg/core/state/asset.go
2020-03-03 17:21:42 +03:00

78 lines
1.8 KiB
Go

package state
import (
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/util"
)
const feeMode = 0x0
// Asset represents the state of an NEO registered Asset.
type Asset struct {
ID util.Uint256
AssetType transaction.AssetType
Name string
Amount util.Fixed8
Available util.Fixed8
Precision uint8
FeeMode uint8
FeeAddress util.Uint160
Owner keys.PublicKey
Admin util.Uint160
Issuer util.Uint160
Expiration uint32
IsFrozen bool
}
// DecodeBinary implements Serializable interface.
func (a *Asset) DecodeBinary(br *io.BinReader) {
br.ReadBytes(a.ID[:])
a.AssetType = transaction.AssetType(br.ReadB())
a.Name = br.ReadString()
a.Amount.DecodeBinary(br)
a.Available.DecodeBinary(br)
a.Precision = uint8(br.ReadB())
a.FeeMode = uint8(br.ReadB())
br.ReadBytes(a.FeeAddress[:])
a.Owner.DecodeBinary(br)
br.ReadBytes(a.Admin[:])
br.ReadBytes(a.Issuer[:])
a.Expiration = br.ReadU32LE()
a.IsFrozen = br.ReadBool()
}
// EncodeBinary implements Serializable interface.
func (a *Asset) EncodeBinary(bw *io.BinWriter) {
bw.WriteBytes(a.ID[:])
bw.WriteB(byte(a.AssetType))
bw.WriteString(a.Name)
a.Amount.EncodeBinary(bw)
a.Available.EncodeBinary(bw)
bw.WriteB(byte(a.Precision))
bw.WriteB(byte(a.FeeMode))
bw.WriteBytes(a.FeeAddress[:])
a.Owner.EncodeBinary(bw)
bw.WriteBytes(a.Admin[:])
bw.WriteBytes(a.Issuer[:])
bw.WriteU32LE(a.Expiration)
bw.WriteBool(a.IsFrozen)
}
// GetName returns the asset name based on its type.
func (a *Asset) GetName() string {
if a.AssetType == transaction.GoverningToken {
return "NEO"
} else if a.AssetType == transaction.UtilityToken {
return "NEOGas"
}
return a.Name
}