lotus/chain/actors/builtin/multisig/message8.go

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package multisig
import (
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
builtin8 "github.com/filecoin-project/specs-actors/v8/actors/builtin"
init8 "github.com/filecoin-project/specs-actors/v8/actors/builtin/init"
multisig8 "github.com/filecoin-project/specs-actors/v8/actors/builtin/multisig"
"github.com/filecoin-project/lotus/chain/actors"
init_ "github.com/filecoin-project/lotus/chain/actors/builtin/init"
"github.com/filecoin-project/lotus/chain/types"
)
type message8 struct{ message0 }
func (m message8) Create(
signers []address.Address, threshold uint64,
unlockStart, unlockDuration abi.ChainEpoch,
initialAmount abi.TokenAmount,
) (*types.Message, error) {
lenAddrs := uint64(len(signers))
if lenAddrs < threshold {
return nil, xerrors.Errorf("cannot require signing of more addresses than provided for multisig")
}
if threshold == 0 {
threshold = lenAddrs
}
if m.from == address.Undef {
return nil, xerrors.Errorf("must provide source address")
}
// Set up constructor parameters for multisig
msigParams := &multisig8.ConstructorParams{
Signers: signers,
NumApprovalsThreshold: threshold,
UnlockDuration: unlockDuration,
StartEpoch: unlockStart,
}
enc, actErr := actors.SerializeParams(msigParams)
if actErr != nil {
return nil, actErr
}
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actorCodeID, ok := actors.GetActorCodeID(actors.Version8, "multisig")
if !ok {
return nil, xerrors.Errorf("error getting actor multisig code id for actor version %d", 8)
}
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// new actors are created by invoking 'exec' on the init actor with the constructor params
execParams := &init8.ExecParams{
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CodeCID: actorCodeID,
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ConstructorParams: enc,
}
enc, actErr = actors.SerializeParams(execParams)
if actErr != nil {
return nil, actErr
}
return &types.Message{
To: init_.Address,
From: m.from,
Method: builtin8.MethodsInit.Exec,
Params: enc,
Value: initialAmount,
}, nil
}