lotus/chain/actors/builtin/init/actor.go.template

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package init
import (
"github.com/filecoin-project/lotus/chain/actors"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/cbor"
"github.com/ipfs/go-cid"
"github.com/filecoin-project/lotus/chain/actors/adt"
"github.com/filecoin-project/lotus/chain/actors/builtin"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/node/modules/dtypes"
{{range .versions}}
builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
{{end}}
)
func init() {
{{range .versions}}
builtin.RegisterActorState(builtin{{.}}.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
return load{{.}}(store, root)
})
{{end}}}
var (
Address = builtin{{.latestVersion}}.InitActorAddr
Methods = builtin{{.latestVersion}}.MethodsInit
)
func Load(store adt.Store, act *types.Actor) (State, error) {
if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
if name != "init" {
return nil, xerrors.Errorf("actor code is not init: %s", name)
}
switch av {
{{range .versions}}
case actors.Version{{.}}:
return load{{.}}(store, act.Head)
{{end}}
default:
return nil, xerrors.Errorf("unknown actor version: %d", av)
}
}
switch act.Code {
{{range .versions}}
case builtin{{.}}.InitActorCodeID:
return load{{.}}(store, act.Head)
{{end}}
}
return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}
func MakeState(store adt.Store, av actors.Version, networkName string) (State, error) {
switch av {
{{range .versions}}
case actors.Version{{.}}:
return make{{.}}(store, networkName)
{{end}}
}
return nil, xerrors.Errorf("unknown actor version %d", av)
}
func GetActorCodeID(av actors.Version) (cid.Cid, error) {
if c, ok := actors.GetActorCodeID(av, "init"); ok {
return c, nil
}
switch av {
{{range .versions}}
case actors.Version{{.}}:
return builtin{{.}}.InitActorCodeID, nil
{{end}}
}
return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
}
type State interface {
cbor.Marshaler
ResolveAddress(address address.Address) (address.Address, bool, error)
MapAddressToNewID(address address.Address) (address.Address, error)
NetworkName() (dtypes.NetworkName, error)
ForEachActor(func(id abi.ActorID, address address.Address) error) error
// Remove exists to support tooling that manipulates state for testing.
// It should not be used in production code, as init actor entries are
// immutable.
Remove(addrs ...address.Address) error
// Sets the network's name. This should only be used on upgrade/fork.
SetNetworkName(name string) error
// Sets the next ID for the init actor. This should only be used for testing.
SetNextID(id abi.ActorID) error
// Sets the address map for the init actor. This should only be used for testing.
SetAddressMap(mcid cid.Cid) error
AddressMap() (adt.Map, error)
GetState() interface{}
}