package types import ( "github.com/ipfs/go-cid" cbg "github.com/whyrusleeping/cbor-gen" "github.com/filecoin-project/go-address" "github.com/filecoin-project/lotus/chain/actors/aerrors" ) type Storage interface { Put(cbg.CBORMarshaler) (cid.Cid, aerrors.ActorError) Get(cid.Cid, cbg.CBORUnmarshaler) aerrors.ActorError GetHead() cid.Cid // Commit sets the new head of the actors state as long as the current // state matches 'oldh' Commit(oldh cid.Cid, newh cid.Cid) aerrors.ActorError } type StateTree interface { SetActor(addr address.Address, act *Actor) error // GetActor returns the actor from any type of `addr` provided. GetActor(addr address.Address) (*Actor, error) Version() StateTreeVersion } type storageWrapper struct { s Storage } func (sw *storageWrapper) Put(i cbg.CBORMarshaler) (cid.Cid, error) { c, err := sw.s.Put(i) if err != nil { return cid.Undef, err } return c, nil } func (sw *storageWrapper) Get(c cid.Cid, out cbg.CBORUnmarshaler) error { if err := sw.s.Get(c, out); err != nil { return err } return nil }