package vm import ( "context" "github.com/filecoin-project/lotus/chain/actors" "github.com/filecoin-project/specs-actors/actors/abi/big" "github.com/filecoin-project/specs-actors/actors/builtin" "github.com/filecoin-project/specs-actors/actors/runtime/exitcode" "github.com/ipfs/go-cid" cbor "github.com/ipfs/go-ipld-cbor" "github.com/filecoin-project/go-address" "github.com/filecoin-project/lotus/chain/actors/aerrors" "github.com/filecoin-project/lotus/chain/types" ) func init() { cst := cbor.NewMemCborStore() emptyobject, err := cst.Put(context.TODO(), []struct{}{}) if err != nil { panic(err) } EmptyObjectCid = emptyobject } var EmptyObjectCid cid.Cid // TryCreateAccountActor creates account actors from only BLS/SECP256K1 addresses. func TryCreateAccountActor(rt *Runtime, addr address.Address) (*types.Actor, aerrors.ActorError) { if err := rt.chargeGasSafe(PricelistByEpoch(rt.height).OnCreateActor()); err != nil { return nil, err } addrID, err := rt.state.RegisterNewAddress(addr) if err != nil { return nil, aerrors.Escalate(err, "registering actor address") } act, aerr := makeActor(addr) if aerr != nil { return nil, aerr } if err := rt.state.SetActor(addrID, act); err != nil { return nil, aerrors.Escalate(err, "creating new actor failed") } p, err := actors.SerializeParams(&addr) if err != nil { return nil, aerrors.Escalate(err, "couldn't serialize params for actor construction") } // call constructor on account _, aerr = rt.internalSend(builtin.SystemActorAddr, addrID, builtin.MethodsAccount.Constructor, big.Zero(), p) if aerr != nil { return nil, aerrors.Wrap(aerr, "failed to invoke account constructor") } act, err = rt.state.GetActor(addrID) if err != nil { return nil, aerrors.Escalate(err, "loading newly created actor failed") } return act, nil } func makeActor(addr address.Address) (*types.Actor, aerrors.ActorError) { switch addr.Protocol() { case address.BLS: return NewBLSAccountActor(), nil case address.SECP256K1: return NewSecp256k1AccountActor(), nil case address.ID: return nil, aerrors.Newf(exitcode.SysErrInvalidReceiver, "no actor with given ID: %s", addr) case address.Actor: return nil, aerrors.Newf(exitcode.SysErrInvalidReceiver, "no such actor: %s", addr) default: return nil, aerrors.Newf(exitcode.SysErrInvalidReceiver, "address has unsupported protocol: %d", addr.Protocol()) } } func NewBLSAccountActor() *types.Actor { nact := &types.Actor{ Code: builtin.AccountActorCodeID, Balance: types.NewInt(0), Head: EmptyObjectCid, } return nact } func NewSecp256k1AccountActor() *types.Actor { nact := &types.Actor{ Code: builtin.AccountActorCodeID, Balance: types.NewInt(0), Head: EmptyObjectCid, } return nact }