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fx.go
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fx.go
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// Copyright (C) 2019-2023, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package fx
import (
"github.com/ava-labs/avalanchego/snow"
"github.com/ava-labs/avalanchego/vms/components/verify"
"github.com/ava-labs/avalanchego/vms/secp256k1fx"
)
var (
_ Fx = (*secp256k1fx.Fx)(nil)
_ Owner = (*secp256k1fx.OutputOwners)(nil)
_ Owned = (*secp256k1fx.TransferOutput)(nil)
)
// Fx is the interface a feature extension must implement to support the
// Platform Chain.
type Fx interface {
// Initialize this feature extension to be running under this VM. Should
// return an error if the VM is incompatible.
Initialize(vm interface{}) error
// Notify this Fx that the VM is in bootstrapping
Bootstrapping() error
// Notify this Fx that the VM is bootstrapped
Bootstrapped() error
// VerifyTransfer verifies that the specified transaction can spend the
// provided utxo with no restrictions on the destination. If the transaction
// can't spend the output based on the input and credential, a non-nil error
// should be returned.
VerifyTransfer(tx, in, cred, utxo interface{}) error
// VerifyPermission returns nil iff [cred] proves that [controlGroup]
// assents to [tx]
VerifyPermission(tx, in, cred, controlGroup interface{}) error
// CreateOutput creates a new output with the provided control group worth
// the specified amount
CreateOutput(amount uint64, controlGroup interface{}) (interface{}, error)
}
type Owner interface {
verify.IsNotState
verify.Verifiable
snow.ContextInitializable
}
type Owned interface {
Owners() interface{}
}