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transfer_output.go
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transfer_output.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package nftfx
import (
"encoding/json"
"errors"
"github.com/ava-labs/avalanchego/vms/types"
"github.com/ava-labs/avalanchego/utils/units"
"github.com/ava-labs/avalanchego/vms/components/verify"
"github.com/ava-labs/avalanchego/vms/secp256k1fx"
)
const (
// MaxPayloadSize is the maximum size that can be placed into a payload
MaxPayloadSize = units.KiB
)
var (
errNilTransferOutput = errors.New("nil transfer output")
errPayloadTooLarge = errors.New("payload too large")
_ verify.State = &TransferOutput{}
)
type TransferOutput struct {
GroupID uint32 `serialize:"true" json:"groupID"`
Payload types.JSONByteSlice `serialize:"true" json:"payload"`
secp256k1fx.OutputOwners `serialize:"true"`
}
// MarshalJSON marshals Amt and the embedded OutputOwners struct
// into a JSON readable format
// If OutputOwners cannot be serialised then this will return error
func (out *TransferOutput) MarshalJSON() ([]byte, error) {
result, err := out.OutputOwners.Fields()
if err != nil {
return nil, err
}
result["groupID"] = out.GroupID
result["payload"] = out.Payload
return json.Marshal(result)
}
func (out *TransferOutput) Verify() error {
switch {
case out == nil:
return errNilTransferOutput
case len(out.Payload) > MaxPayloadSize:
return errPayloadTooLarge
default:
return out.OutputOwners.Verify()
}
}
func (out *TransferOutput) VerifyState() error { return out.Verify() }