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message0.go
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message0.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"
builtintypes "github.com/filecoin-project/go-state-types/builtin"
builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
init0 "github.com/filecoin-project/specs-actors/actors/builtin/init"
multisig0 "github.com/filecoin-project/specs-actors/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 message0 struct{ from address.Address }
func (m message0) 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")
}
if unlockStart != 0 {
return nil, xerrors.Errorf("actors v0 does not support a non-zero vesting start time")
}
// Set up constructor parameters for multisig
msigParams := &multisig0.ConstructorParams{
Signers: signers,
NumApprovalsThreshold: threshold,
UnlockDuration: unlockDuration,
}
enc, actErr := actors.SerializeParams(msigParams)
if actErr != nil {
return nil, actErr
}
// new actors are created by invoking 'exec' on the init actor with the constructor params
execParams := &init0.ExecParams{
CodeCID: builtin0.MultisigActorCodeID,
ConstructorParams: enc,
}
enc, actErr = actors.SerializeParams(execParams)
if actErr != nil {
return nil, actErr
}
return &types.Message{
To: init_.Address,
From: m.from,
Method: builtintypes.MethodsInit.Exec,
Params: enc,
Value: initialAmount,
}, nil
}
func (m message0) Propose(msig, to address.Address, amt abi.TokenAmount,
method abi.MethodNum, params []byte) (*types.Message, error) {
if msig == address.Undef {
return nil, xerrors.Errorf("must provide a multisig address for proposal")
}
if to == address.Undef {
return nil, xerrors.Errorf("must provide a target address for proposal")
}
if amt.Sign() == -1 {
return nil, xerrors.Errorf("must provide a non-negative amount for proposed send")
}
if m.from == address.Undef {
return nil, xerrors.Errorf("must provide source address")
}
enc, actErr := actors.SerializeParams(&multisig0.ProposeParams{
To: to,
Value: amt,
Method: method,
Params: params,
})
if actErr != nil {
return nil, xerrors.Errorf("failed to serialize parameters: %w", actErr)
}
return &types.Message{
To: msig,
From: m.from,
Value: abi.NewTokenAmount(0),
Method: builtin0.MethodsMultisig.Propose,
Params: enc,
}, nil
}
func (m message0) Approve(msig address.Address, txID uint64, hashData *ProposalHashData) (*types.Message, error) {
enc, err := txnParams(txID, hashData)
if err != nil {
return nil, err
}
return &types.Message{
To: msig,
From: m.from,
Value: types.NewInt(0),
Method: builtin0.MethodsMultisig.Approve,
Params: enc,
}, nil
}
func (m message0) Cancel(msig address.Address, txID uint64, hashData *ProposalHashData) (*types.Message, error) {
enc, err := txnParams(txID, hashData)
if err != nil {
return nil, err
}
return &types.Message{
To: msig,
From: m.from,
Value: types.NewInt(0),
Method: builtin0.MethodsMultisig.Cancel,
Params: enc,
}, nil
}