lotus/chain/types/vmcontext.go

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package types
import (
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cid "github.com/ipfs/go-cid"
cbg "github.com/whyrusleeping/cbor-gen"
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"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)
}
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type storageWrapper struct {
s Storage
}
func (sw *storageWrapper) Put(i cbg.CBORMarshaler) (cid.Cid, error) {
c, err := sw.s.Put(i)
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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 {
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return err
}
return nil
}