8b35f480c4
We're probably going to want to change some of these design decisions down the road, but this is a good starting point. * We may want to use a more general test for "is actor valid at epoch". Maybe just a function? * I'd like to push some of the actor metadata down into the actor types themselves. Ideally, we'd be able to register actors with a simple `Register(validation, manyActors...)` call.
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
package vm
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import (
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"context"
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"github.com/filecoin-project/go-state-types/big"
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"github.com/filecoin-project/go-state-types/exitcode"
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"github.com/filecoin-project/lotus/chain/actors"
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"github.com/ipfs/go-cid"
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cbor "github.com/ipfs/go-ipld-cbor"
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builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
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builtin1 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
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"github.com/filecoin-project/go-address"
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"github.com/filecoin-project/lotus/chain/actors/aerrors"
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"github.com/filecoin-project/lotus/chain/types"
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)
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func init() {
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cst := cbor.NewMemCborStore()
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emptyobject, err := cst.Put(context.TODO(), []struct{}{})
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if err != nil {
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panic(err)
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}
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EmptyObjectCid = emptyobject
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}
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var EmptyObjectCid cid.Cid
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// TryCreateAccountActor creates account actors from only BLS/SECP256K1 addresses.
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func TryCreateAccountActor(rt *Runtime, addr address.Address) (*types.Actor, aerrors.ActorError) {
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if err := rt.chargeGasSafe(PricelistByEpoch(rt.height).OnCreateActor()); err != nil {
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return nil, err
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}
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addrID, err := rt.state.RegisterNewAddress(addr)
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if err != nil {
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return nil, aerrors.Escalate(err, "registering actor address")
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}
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act, aerr := makeActor(actors.VersionForNetwork(rt.NetworkVersion()), addr)
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if aerr != nil {
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return nil, aerr
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}
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if err := rt.state.SetActor(addrID, act); err != nil {
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return nil, aerrors.Escalate(err, "creating new actor failed")
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}
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p, err := actors.SerializeParams(&addr)
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if err != nil {
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return nil, aerrors.Escalate(err, "couldn't serialize params for actor construction")
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}
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// call constructor on account
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_, aerr = rt.internalSend(builtin0.SystemActorAddr, addrID, builtin0.MethodsAccount.Constructor, big.Zero(), p)
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if aerr != nil {
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return nil, aerrors.Wrap(aerr, "failed to invoke account constructor")
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}
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act, err = rt.state.GetActor(addrID)
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if err != nil {
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return nil, aerrors.Escalate(err, "loading newly created actor failed")
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}
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return act, nil
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}
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func makeActor(ver actors.Version, addr address.Address) (*types.Actor, aerrors.ActorError) {
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switch addr.Protocol() {
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case address.BLS, address.SECP256K1:
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return newAccountActor(ver), nil
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case address.ID:
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return nil, aerrors.Newf(exitcode.SysErrInvalidReceiver, "no actor with given ID: %s", addr)
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case address.Actor:
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return nil, aerrors.Newf(exitcode.SysErrInvalidReceiver, "no such actor: %s", addr)
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default:
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return nil, aerrors.Newf(exitcode.SysErrInvalidReceiver, "address has unsupported protocol: %d", addr.Protocol())
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}
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}
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func newAccountActor(ver actors.Version) *types.Actor {
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// TODO: ActorsUpgrade use a global actor registry?
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var code cid.Cid
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switch ver {
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case actors.Version0:
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code = builtin0.AccountActorCodeID
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case actors.Version1:
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code = builtin1.AccountActorCodeID
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default:
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panic("unsupported actors version")
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}
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nact := &types.Actor{
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Code: code,
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Balance: types.NewInt(0),
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Head: EmptyObjectCid,
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}
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return nact
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}
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