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

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package system
import (
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actorstypes "github.com/filecoin-project/go-state-types/actors"
"github.com/filecoin-project/lotus/chain/actors/adt"
"github.com/filecoin-project/lotus/chain/actors"
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"github.com/filecoin-project/lotus/chain/types"
"github.com/ipfs/go-cid"
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"golang.org/x/xerrors"
{{range .versions}}
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{{if (le . 7)}}
builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
{{end}}
{{end}}
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builtin{{.latestVersion}} "github.com/filecoin-project/go-state-types/builtin"
)
var (
Address = builtin{{.latestVersion}}.SystemActorAddr
)
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func Load(store adt.Store, act *types.Actor) (State, error) {
if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
if name != actors.SystemKey {
return nil, xerrors.Errorf("actor code is not system: %s", name)
}
switch av {
{{range .versions}}
{{if (ge . 8)}}
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case actorstypes.Version{{.}}:
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return load{{.}}(store, act.Head)
{{end}}
{{end}}
}
}
switch act.Code {
{{range .versions}}
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{{if (le . 7)}}
case builtin{{.}}.SystemActorCodeID:
return load{{.}}(store, act.Head)
{{end}}
{{end}}
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}
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return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}
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func MakeState(store adt.Store, av actorstypes.Version, builtinActors cid.Cid) (State, error) {
switch av {
{{range .versions}}
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case actorstypes.Version{{.}}:
return make{{.}}(store{{if (ge . 8)}}, builtinActors{{end}})
{{end}}
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}
return nil, xerrors.Errorf("unknown actor version %d", av)
}
type State interface {
GetState() interface{}
GetBuiltinActors() cid.Cid
}