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evm.go
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evm.go
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package evm
import (
"github.com/ipfs/go-cid"
"golang.org/x/xerrors"
actorstypes "github.com/filecoin-project/go-state-types/actors"
builtin13 "github.com/filecoin-project/go-state-types/builtin"
"github.com/filecoin-project/go-state-types/cbor"
"github.com/filecoin-project/go-state-types/exitcode"
"github.com/filecoin-project/go-state-types/manifest"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/actors/adt"
"github.com/filecoin-project/lotus/chain/types"
)
var Methods = builtin13.MethodsEVM
// See https://github.com/filecoin-project/builtin-actors/blob/6e781444cee5965278c46ef4ffe1fb1970f18d7d/actors/evm/src/lib.rs#L35-L42
const (
ErrReverted exitcode.ExitCode = iota + 33 // EVM exit codes start at 33
ErrInvalidInstruction
ErrUndefinedInstruction
ErrStackUnderflow
ErrStackOverflow
ErrIllegalMemoryAccess
ErrBadJumpdest
ErrSelfdestructFailed
)
func Load(store adt.Store, act *types.Actor) (State, error) {
if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
if name != manifest.EvmKey {
return nil, xerrors.Errorf("actor code is not evm: %s", name)
}
switch av {
case actorstypes.Version10:
return load10(store, act.Head)
case actorstypes.Version11:
return load11(store, act.Head)
case actorstypes.Version12:
return load12(store, act.Head)
case actorstypes.Version13:
return load13(store, act.Head)
}
}
return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}
func MakeState(store adt.Store, av actorstypes.Version, bytecode cid.Cid) (State, error) {
switch av {
case actorstypes.Version10:
return make10(store, bytecode)
case actorstypes.Version11:
return make11(store, bytecode)
case actorstypes.Version12:
return make12(store, bytecode)
case actorstypes.Version13:
return make13(store, bytecode)
default:
return nil, xerrors.Errorf("evm actor only valid for actors v10 and above, got %d", av)
}
}
type State interface {
cbor.Marshaler
Nonce() (uint64, error)
IsAlive() (bool, error)
GetState() interface{}
GetBytecode() ([]byte, error)
GetBytecodeCID() (cid.Cid, error)
GetBytecodeHash() ([32]byte, error)
}