Reshuffle ExtendedCommit and ExtendedCommitSig

Separate the data structures and functions from their Commit-oriented
counterparts to adhere to the current coding style.

Signed-off-by: Thane Thomson <connect@thanethomson.com>
This commit is contained in:
Thane Thomson
2022-04-28 17:45:01 -04:00
parent f18f1cb3db
commit 23d4d6f914
+297 -238
View File
@@ -609,15 +609,6 @@ type CommitSig struct {
Signature []byte `json:"signature"`
}
type ExtendedCommitSig struct {
BlockIDFlag BlockIDFlag `json:"block_id_flag"`
ValidatorAddress Address `json:"validator_address"`
Timestamp time.Time `json:"timestamp"`
Signature []byte `json:"signature"`
VoteExtension []byte `json:"extension"`
ExtensionSignature []byte `json:"extension_signature"`
}
// NewCommitSigForBlock returns new CommitSig with BlockIDFlagCommit.
func NewCommitSigForBlock(signature []byte, valAddr Address, ts time.Time) CommitSig {
return CommitSig{
@@ -642,32 +633,16 @@ func NewCommitSigAbsent() CommitSig {
}
}
//TODO: When all UTs passing, try removing the Commit and CommitSig version of new functions
func NewExtendedCommitSigAbsent() ExtendedCommitSig {
return ExtendedCommitSig{
BlockIDFlag: BlockIDFlagAbsent,
}
}
// ForBlock returns true if CommitSig is for the block.
func (cs CommitSig) ForBlock() bool {
return cs.BlockIDFlag == BlockIDFlagCommit
}
func (ecs ExtendedCommitSig) ForBlock() bool {
return ecs.BlockIDFlag == BlockIDFlagCommit
}
// Absent returns true if CommitSig is absent.
func (cs CommitSig) Absent() bool {
return cs.BlockIDFlag == BlockIDFlagAbsent
}
func (ecs ExtendedCommitSig) Absent() bool {
//TODO What about BlockIDFlagNil?
return ecs.BlockIDFlag == BlockIDFlagAbsent
}
// CommitSig returns a string representation of CommitSig.
//
// 1. first 6 bytes of signature
@@ -699,21 +674,6 @@ func (cs CommitSig) BlockID(commitBlockID BlockID) BlockID {
return blockID
}
func (ecs ExtendedCommitSig) BlockID(commitBlockID BlockID) BlockID {
var blockID BlockID
switch ecs.BlockIDFlag {
case BlockIDFlagAbsent:
blockID = BlockID{}
case BlockIDFlagCommit:
blockID = commitBlockID
case BlockIDFlagNil:
blockID = BlockID{}
default:
panic(fmt.Sprintf("Unknown BlockIDFlag: %v", ecs.BlockIDFlag))
}
return blockID
}
// ValidateBasic performs basic validation.
func (cs CommitSig) ValidateBasic() error {
switch cs.BlockIDFlag {
@@ -754,6 +714,99 @@ func (cs CommitSig) ValidateBasic() error {
return nil
}
// ToProto converts CommitSig to protobuf
func (cs *CommitSig) ToProto() *tmproto.CommitSig {
if cs == nil {
return nil
}
return &tmproto.CommitSig{
BlockIdFlag: tmproto.BlockIDFlag(cs.BlockIDFlag),
ValidatorAddress: cs.ValidatorAddress,
Timestamp: cs.Timestamp,
Signature: cs.Signature,
}
}
// FromProto sets a protobuf CommitSig to the given pointer.
// It returns an error if the CommitSig is invalid.
func (cs *CommitSig) FromProto(csp tmproto.CommitSig) error {
cs.BlockIDFlag = BlockIDFlag(csp.BlockIdFlag)
cs.ValidatorAddress = csp.ValidatorAddress
cs.Timestamp = csp.Timestamp
cs.Signature = csp.Signature
return cs.ValidateBasic()
}
//-------------------------------------
// ExtendedCommitSig is similar to CommitSig, except it also contains the vote
// extension and vote extension signature related to this commit.
type ExtendedCommitSig struct {
BlockIDFlag BlockIDFlag `json:"block_id_flag"`
ValidatorAddress Address `json:"validator_address"`
Timestamp time.Time `json:"timestamp"`
Signature []byte `json:"signature"`
VoteExtension []byte `json:"extension"`
ExtensionSignature []byte `json:"extension_signature"`
}
// NewExtendedCommitSigAbsent returns new ExtendedCommitSig with
// BlockIDFlagAbsent. Other fields are all empty.
// TODO(sergio): When all UTs passing, try removing the Commit and CommitSig version of new functions
func NewExtendedCommitSigAbsent() ExtendedCommitSig {
return ExtendedCommitSig{
BlockIDFlag: BlockIDFlagAbsent,
}
}
// ForBlock returns true if ExtendedCommitSig is for the block.
func (ecs ExtendedCommitSig) ForBlock() bool {
return ecs.BlockIDFlag == BlockIDFlagCommit
}
// Absent returns true if ExtendedCommitSig is absent.
func (ecs ExtendedCommitSig) Absent() bool {
//TODO What about BlockIDFlagNil?
return ecs.BlockIDFlag == BlockIDFlagAbsent
}
// String returns a string representation of an ExtendedCommitSig.
//
// 1. first 6 bytes of signature
// 2. first 6 bytes of validator address
// 3. block ID flag
// 4. timestamp
// 5. first 6 bytes of vote extension
// 6. first 6 bytes of vote extension signature
func (cs ExtendedCommitSig) String() string {
return fmt.Sprintf("ExtendedCommitSig{%X by %X on %v @ %s with %X %X}",
tmbytes.Fingerprint(cs.Signature),
tmbytes.Fingerprint(cs.ValidatorAddress),
cs.BlockIDFlag,
CanonicalTime(cs.Timestamp),
tmbytes.Fingerprint(cs.VoteExtension),
tmbytes.Fingerprint(cs.ExtensionSignature),
)
}
func (ecs ExtendedCommitSig) BlockID(commitBlockID BlockID) BlockID {
var blockID BlockID
switch ecs.BlockIDFlag {
case BlockIDFlagAbsent:
blockID = BlockID{}
case BlockIDFlagCommit:
blockID = commitBlockID
case BlockIDFlagNil:
blockID = BlockID{}
default:
panic(fmt.Sprintf("Unknown BlockIDFlag: %v", ecs.BlockIDFlag))
}
return blockID
}
// ValidateBasic checks whether the structure is well-formed.
func (ecs ExtendedCommitSig) ValidateBasic() error {
switch ecs.BlockIDFlag {
case BlockIDFlagAbsent:
@@ -810,20 +863,7 @@ func (ecs ExtendedCommitSig) ValidateBasic() error {
return nil
}
// ToProto converts CommitSig to protobuf
func (cs *CommitSig) ToProto() *tmproto.CommitSig {
if cs == nil {
return nil
}
return &tmproto.CommitSig{
BlockIdFlag: tmproto.BlockIDFlag(cs.BlockIDFlag),
ValidatorAddress: cs.ValidatorAddress,
Timestamp: cs.Timestamp,
Signature: cs.Signature,
}
}
// ToProto converts the ExtendedCommitSig to its Protobuf representation.
func (ecs *ExtendedCommitSig) ToProto() *tmproto.ExtendedCommitSig {
if ecs == nil {
return nil
@@ -839,17 +879,9 @@ func (ecs *ExtendedCommitSig) ToProto() *tmproto.ExtendedCommitSig {
}
}
// FromProto sets a protobuf CommitSig to the given pointer.
// It returns an error if the CommitSig is invalid.
func (cs *CommitSig) FromProto(csp tmproto.CommitSig) error {
cs.BlockIDFlag = BlockIDFlag(csp.BlockIdFlag)
cs.ValidatorAddress = csp.ValidatorAddress
cs.Timestamp = csp.Timestamp
cs.Signature = csp.Signature
return cs.ValidateBasic()
}
// FromProto populates the ExtendedCommitSig with values from the given
// Protobuf representation. Returns an error if the ExtendedCommitSig is
// invalid.
func (ecs *ExtendedCommitSig) FromProto(ecsp tmproto.ExtendedCommitSig) error {
ecs.BlockIDFlag = BlockIDFlag(ecsp.BlockIdFlag)
ecs.ValidatorAddress = ecsp.ValidatorAddress
@@ -882,17 +914,6 @@ type Commit struct {
//bitArray *bits.BitArray
}
// ExtendedCommit is similar to Commit, except that its signatures also retain
// their corresponding vote extensions and vote extension signatures.
type ExtendedCommit struct {
Height int64 `json:"height,string"`
Round int32 `json:"round"`
BlockID BlockID `json:"block_id"`
ExtendedSignatures []ExtendedCommitSig `json:"signatures"`
bitArray *bits.BitArray
}
// NewCommit returns a new Commit.
func NewCommit(height int64, round int32, blockID BlockID, commitSigs []CommitSig) *Commit {
return &Commit{
@@ -903,15 +924,6 @@ func NewCommit(height int64, round int32, blockID BlockID, commitSigs []CommitSi
}
}
func NewExtendedCommit(height int64, round int32, blockID BlockID, extCommitSigs []ExtendedCommitSig) *ExtendedCommit {
return &ExtendedCommit{
Height: height,
Round: round,
BlockID: blockID,
ExtendedSignatures: extCommitSigs,
}
}
// func (commit Commit) ToExtCommitNoExt() *ExtendedCommit {
// // For every validator, get the precommit with extensions
// extCommitSigs := make([]ExtendedCommitSig, len(commit.Signatures))
@@ -926,56 +938,6 @@ func NewExtendedCommit(height int64, round int32, blockID BlockID, extCommitSigs
// return NewExtendedCommit(commit.Height, commit.Round, commit.BlockID, extCommitSigs)
// }
// ToVoteSet constructs a VoteSet from the Commit and validator set.
// Panics if signatures from the commit can't be added to the voteset.
// Inverse of VoteSet.MakeCommit().
func (extCommit *ExtendedCommit) ToVoteSet(chainID string, vals *ValidatorSet) *VoteSet {
voteSet := NewVoteSet(chainID, extCommit.Height, extCommit.Round, tmproto.PrecommitType, vals)
for idx, extCommitSig := range extCommit.ExtendedSignatures {
if extCommitSig.Absent() {
continue // OK, some precommits can be missing.
}
vote := extCommit.GetExtendedVote(int32(idx))
if err := vote.ValidateWithExtension(); err != nil {
panic(fmt.Errorf("failed to validate vote reconstructed from LastCommit: %w", err))
}
added, err := voteSet.AddVote(vote)
if !added || err != nil {
panic(fmt.Errorf("failed to reconstruct vote set from extended commit: %w", err))
}
}
return voteSet
}
func (extCommit *ExtendedCommit) StripExtensions() *Commit {
commitSigs := make([]CommitSig, len(extCommit.ExtendedSignatures))
for idx, extCommitSig := range extCommit.ExtendedSignatures {
commitSigs[idx] = CommitSig{
BlockIDFlag: extCommitSig.BlockIDFlag,
ValidatorAddress: extCommitSig.ValidatorAddress,
Timestamp: extCommitSig.Timestamp,
Signature: extCommitSig.Signature,
}
}
return NewCommit(extCommit.Height, extCommit.Round, extCommit.BlockID, commitSigs)
}
// func (extCommit *ExtendedCommit) ExtensionsStripped() bool {
// strippedIdx := -1
// for idx, extCommitSig := range extCommit.Signatures {
// if !extCommitSig.ForBlock() {
// continue
// }
// if len(extCommitSig.ExtensionSignature) == 0 {
// strippedIdx = idx
// } else if strippedIdx != -1 {
// panic(fmt.Sprintf("vote extension signature is missing at index %v but present at index %v in extended commit %v",
// strippedIdx, idx, extCommit))
// }
// }
// return strippedIdx != -1
// }
// GetVote converts the CommitSig for the given valIdx to a Vote. Commits do
// not contain vote extensions, so the vote extension and vote extension
// signature will not be present in the returned vote.
@@ -995,25 +957,6 @@ func (commit *Commit) GetVote(valIdx int32) *Vote {
}
}
// GetExtendedVote converts the ExtendedCommitSig for the given valIdx to a
// Vote with vote extensions.
// Panics if valIdx >= extCommit.Size().
func (extCommit *ExtendedCommit) GetExtendedVote(valIdx int32) *Vote {
commitSig := extCommit.ExtendedSignatures[valIdx]
return &Vote{
Type: tmproto.PrecommitType,
Height: extCommit.Height,
Round: extCommit.Round,
BlockID: commitSig.BlockID(extCommit.BlockID),
Timestamp: commitSig.Timestamp,
ValidatorAddress: commitSig.ValidatorAddress,
ValidatorIndex: valIdx,
Signature: commitSig.Signature,
Extension: commitSig.VoteExtension,
ExtensionSignature: commitSig.ExtensionSignature,
}
}
// VoteSignBytes returns the bytes of the Vote corresponding to valIdx for
// signing.
//
@@ -1034,30 +977,18 @@ func (commit *Commit) VoteSignBytes(chainID string, valIdx int32) []byte {
// return byte(tmproto.PrecommitType)
// }
func (extCommit *ExtendedCommit) Type() byte {
return byte(tmproto.PrecommitType)
}
// GetHeight returns height of the commit.
// Implements VoteSetReader.
// func (commit *Commit) GetHeight() int64 {
// return commit.Height
// }
func (extCommit *ExtendedCommit) GetHeight() int64 {
return extCommit.Height
}
// GetRound returns height of the commit.
// Implements VoteSetReader.
// func (commit *Commit) GetRound() int32 {
// return commit.Round
// }
func (extCommit *ExtendedCommit) GetRound() int32 {
return extCommit.Round
}
// Size returns the number of signatures in the commit.
// Implements VoteSetReader.
func (commit *Commit) Size() int {
@@ -1067,13 +998,6 @@ func (commit *Commit) Size() int {
return len(commit.Signatures)
}
func (extCommit *ExtendedCommit) Size() int {
if extCommit == nil {
return 0
}
return len(extCommit.ExtendedSignatures)
}
// BitArray returns a BitArray of which validators voted for BlockID or nil in this commit.
// Implements VoteSetReader.
// func (commit *Commit) BitArray() *bits.BitArray {
@@ -1088,18 +1012,6 @@ func (extCommit *ExtendedCommit) Size() int {
// return commit.bitArray
// }
func (extCommit *ExtendedCommit) BitArray() *bits.BitArray {
if extCommit.bitArray == nil {
extCommit.bitArray = bits.NewBitArray(len(extCommit.ExtendedSignatures))
for i, extCommitSig := range extCommit.ExtendedSignatures {
// TODO: need to check the BlockID otherwise we could be counting conflicts,
// not just the one with +2/3 !
extCommit.bitArray.SetIndex(i, !extCommitSig.Absent())
}
}
return extCommit.bitArray
}
// GetByIndex returns the vote corresponding to a given validator index.
// Panics if `index >= commit.Size()`.
// Implements VoteSetReader.
@@ -1107,20 +1019,12 @@ func (extCommit *ExtendedCommit) BitArray() *bits.BitArray {
// return commit.GetVote(valIdx)
// }
func (extCommit *ExtendedCommit) GetByIndex(valIdx int32) *Vote {
return extCommit.GetExtendedVote(valIdx)
}
// IsCommit returns true if there is at least one signature.
// Implements VoteSetReader.
// func (commit *Commit) IsCommit() bool {
// return len(commit.Signatures) != 0
// }
func (extCommit *ExtendedCommit) IsCommit() bool {
return len(extCommit.ExtendedSignatures) != 0
}
// ValidateBasic performs basic validation that doesn't involve state data.
// Does not actually check the cryptographic signatures.
func (commit *Commit) ValidateBasic() error {
@@ -1148,31 +1052,6 @@ func (commit *Commit) ValidateBasic() error {
return nil
}
func (extCommit *ExtendedCommit) ValidateBasic() error {
if extCommit.Height < 0 {
return errors.New("negative Height")
}
if extCommit.Round < 0 {
return errors.New("negative Round")
}
if extCommit.Height >= 1 {
if extCommit.BlockID.IsNil() {
return errors.New("commit cannot be for nil block")
}
if len(extCommit.ExtendedSignatures) == 0 {
return errors.New("no signatures in commit")
}
for i, extCommitSig := range extCommit.ExtendedSignatures {
if err := extCommitSig.ValidateBasic(); err != nil {
return fmt.Errorf("wrong ExtendedCommitSig #%d: %v", i, err)
}
}
}
return nil
}
// Hash returns the hash of the commit
func (commit *Commit) Hash() tmbytes.HexBytes {
if commit == nil {
@@ -1238,25 +1117,6 @@ func (commit *Commit) ToProto() *tmproto.Commit {
return c
}
func (extCommit *ExtendedCommit) ToProto() *tmproto.ExtendedCommit {
if extCommit == nil {
return nil
}
c := new(tmproto.ExtendedCommit)
sigs := make([]tmproto.ExtendedCommitSig, len(extCommit.ExtendedSignatures))
for i := range extCommit.ExtendedSignatures {
sigs[i] = *extCommit.ExtendedSignatures[i].ToProto()
}
c.ExtendedSignatures = sigs
c.Height = extCommit.Height
c.Round = extCommit.Round
c.BlockID = extCommit.BlockID.ToProto()
return c
}
// FromProto sets a protobuf Commit to the given pointer.
// It returns an error if the commit is invalid.
func CommitFromProto(cp *tmproto.Commit) (*Commit, error) {
@@ -1288,6 +1148,205 @@ func CommitFromProto(cp *tmproto.Commit) (*Commit, error) {
return commit, commit.ValidateBasic()
}
//-------------------------------------
// ExtendedCommit is similar to Commit, except that its signatures also retain
// their corresponding vote extensions and vote extension signatures.
type ExtendedCommit struct {
Height int64 `json:"height,string"`
Round int32 `json:"round"`
BlockID BlockID `json:"block_id"`
ExtendedSignatures []ExtendedCommitSig `json:"signatures"`
bitArray *bits.BitArray
}
// NewExtendedCommit constructs an ExtendedCommit from the given parameters.
func NewExtendedCommit(height int64, round int32, blockID BlockID, extCommitSigs []ExtendedCommitSig) *ExtendedCommit {
return &ExtendedCommit{
Height: height,
Round: round,
BlockID: blockID,
ExtendedSignatures: extCommitSigs,
}
}
// ToVoteSet constructs a VoteSet from the Commit and validator set.
// Panics if signatures from the commit can't be added to the voteset.
// Inverse of VoteSet.MakeCommit().
func (extCommit *ExtendedCommit) ToVoteSet(chainID string, vals *ValidatorSet) *VoteSet {
voteSet := NewVoteSet(chainID, extCommit.Height, extCommit.Round, tmproto.PrecommitType, vals)
for idx, extCommitSig := range extCommit.ExtendedSignatures {
if extCommitSig.Absent() {
continue // OK, some precommits can be missing.
}
vote := extCommit.GetExtendedVote(int32(idx))
if err := vote.ValidateWithExtension(); err != nil {
panic(fmt.Errorf("failed to validate vote reconstructed from LastCommit: %w", err))
}
added, err := voteSet.AddVote(vote)
if !added || err != nil {
panic(fmt.Errorf("failed to reconstruct vote set from extended commit: %w", err))
}
}
return voteSet
}
// func (extCommit *ExtendedCommit) ExtensionsStripped() bool {
// strippedIdx := -1
// for idx, extCommitSig := range extCommit.Signatures {
// if !extCommitSig.ForBlock() {
// continue
// }
// if len(extCommitSig.ExtensionSignature) == 0 {
// strippedIdx = idx
// } else if strippedIdx != -1 {
// panic(fmt.Sprintf("vote extension signature is missing at index %v but present at index %v in extended commit %v",
// strippedIdx, idx, extCommit))
// }
// }
// return strippedIdx != -1
// }
// StripExtensions converts an ExtendedCommit to a Commit by removing all vote
// extension-related fields.
func (extCommit *ExtendedCommit) StripExtensions() *Commit {
commitSigs := make([]CommitSig, len(extCommit.ExtendedSignatures))
for idx, extCommitSig := range extCommit.ExtendedSignatures {
commitSigs[idx] = CommitSig{
BlockIDFlag: extCommitSig.BlockIDFlag,
ValidatorAddress: extCommitSig.ValidatorAddress,
Timestamp: extCommitSig.Timestamp,
Signature: extCommitSig.Signature,
}
}
return NewCommit(extCommit.Height, extCommit.Round, extCommit.BlockID, commitSigs)
}
// GetExtendedVote converts the ExtendedCommitSig for the given valIdx to a
// Vote with vote extensions.
// Panics if valIdx >= extCommit.Size().
func (extCommit *ExtendedCommit) GetExtendedVote(valIdx int32) *Vote {
commitSig := extCommit.ExtendedSignatures[valIdx]
return &Vote{
Type: tmproto.PrecommitType,
Height: extCommit.Height,
Round: extCommit.Round,
BlockID: commitSig.BlockID(extCommit.BlockID),
Timestamp: commitSig.Timestamp,
ValidatorAddress: commitSig.ValidatorAddress,
ValidatorIndex: valIdx,
Signature: commitSig.Signature,
Extension: commitSig.VoteExtension,
ExtensionSignature: commitSig.ExtensionSignature,
}
}
// Type returns the vote type of the extended commit, which is always
// VoteTypePrecommit
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) Type() byte {
return byte(tmproto.PrecommitType)
}
// GetHeight returns height of the extended commit.
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) GetHeight() int64 {
return extCommit.Height
}
// GetRound returns height of the extended commit.
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) GetRound() int32 {
return extCommit.Round
}
// Size returns the number of signatures in the extended commit.
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) Size() int {
if extCommit == nil {
return 0
}
return len(extCommit.ExtendedSignatures)
}
// BitArray returns a BitArray of which validators voted for BlockID or nil in
// this extended commit.
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) BitArray() *bits.BitArray {
if extCommit.bitArray == nil {
extCommit.bitArray = bits.NewBitArray(len(extCommit.ExtendedSignatures))
for i, extCommitSig := range extCommit.ExtendedSignatures {
// TODO: need to check the BlockID otherwise we could be counting conflicts,
// not just the one with +2/3 !
extCommit.bitArray.SetIndex(i, !extCommitSig.Absent())
}
}
return extCommit.bitArray
}
// GetByIndex returns the vote corresponding to a given validator index.
// Panics if `index >= extCommit.Size()`.
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) GetByIndex(valIdx int32) *Vote {
return extCommit.GetExtendedVote(valIdx)
}
// IsCommit returns true if there is at least one signature.
// Implements VoteSetReader.
func (extCommit *ExtendedCommit) IsCommit() bool {
return len(extCommit.ExtendedSignatures) != 0
}
// ValidateBasic checks whether the extended commit is well-formed. Does not
// actually check the cryptographic signatures.
func (extCommit *ExtendedCommit) ValidateBasic() error {
if extCommit.Height < 0 {
return errors.New("negative Height")
}
if extCommit.Round < 0 {
return errors.New("negative Round")
}
if extCommit.Height >= 1 {
if extCommit.BlockID.IsNil() {
return errors.New("commit cannot be for nil block")
}
if len(extCommit.ExtendedSignatures) == 0 {
return errors.New("no signatures in commit")
}
for i, extCommitSig := range extCommit.ExtendedSignatures {
if err := extCommitSig.ValidateBasic(); err != nil {
return fmt.Errorf("wrong ExtendedCommitSig #%d: %v", i, err)
}
}
}
return nil
}
// ToProto converts ExtendedCommit to protobuf
func (extCommit *ExtendedCommit) ToProto() *tmproto.ExtendedCommit {
if extCommit == nil {
return nil
}
c := new(tmproto.ExtendedCommit)
sigs := make([]tmproto.ExtendedCommitSig, len(extCommit.ExtendedSignatures))
for i := range extCommit.ExtendedSignatures {
sigs[i] = *extCommit.ExtendedSignatures[i].ToProto()
}
c.ExtendedSignatures = sigs
c.Height = extCommit.Height
c.Round = extCommit.Round
c.BlockID = extCommit.BlockID.ToProto()
return c
}
// ExtendedCommitFromProto constructs an ExtendedCommit from the given Protobuf
// representation. It returns an error if the extended commit is invalid.
func ExtendedCommitFromProto(ecp *tmproto.ExtendedCommit) (*ExtendedCommit, error) {
if ecp == nil {
return nil, errors.New("nil ExtendedCommit")
@@ -1317,7 +1376,7 @@ func ExtendedCommitFromProto(ecp *tmproto.ExtendedCommit) (*ExtendedCommit, erro
return extCommit, extCommit.ValidateBasic()
}
//-----------------------------------------------------------------------------
//-------------------------------------
// Data contains the set of transactions included in the block
type Data struct {