beacon/types: auto-generate SyncCommittee marshaling methods (#27296)
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@ -164,44 +164,21 @@ func (sc *SyncCommittee) VerifySignature(signingRoot common.Hash, signature *Syn
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return bls.FastAggregateVerify(keys, signingRoot[:], &sig)
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}
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//go:generate go run github.com/fjl/gencodec -type SyncAggregate -field-override syncAggregateMarshaling -out gen_syncaggregate_json.go
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// SyncAggregate represents an aggregated BLS signature with Signers referring
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// to a subset of the corresponding sync committee.
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//
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// See data structure definition here:
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// https://github.com/ethereum/consensus-specs/blob/dev/specs/altair/beacon-chain.md#syncaggregate
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type SyncAggregate struct {
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Signers [params.SyncCommitteeBitmaskSize]byte
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Signature [params.BLSSignatureSize]byte
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Signers [params.SyncCommitteeBitmaskSize]byte `gencodec:"required" json:"sync_committee_bits"`
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Signature [params.BLSSignatureSize]byte `gencodec:"required" json:"sync_committee_signature"`
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}
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type jsonSyncAggregate struct {
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Signers hexutil.Bytes `json:"sync_committee_bits"`
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Signature hexutil.Bytes `json:"sync_committee_signature"`
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}
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// MarshalJSON implements json.Marshaler.
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func (s *SyncAggregate) MarshalJSON() ([]byte, error) {
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return json.Marshal(&jsonSyncAggregate{
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Signers: s.Signers[:],
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Signature: s.Signature[:],
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})
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}
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// UnmarshalJSON implements json.Marshaler.
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func (s *SyncAggregate) UnmarshalJSON(input []byte) error {
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var sc jsonSyncAggregate
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if err := json.Unmarshal(input, &sc); err != nil {
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return err
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}
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if len(sc.Signers) != params.SyncCommitteeBitmaskSize {
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return fmt.Errorf("invalid signature bitmask size %d", len(sc.Signers))
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}
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if len(sc.Signature) != params.BLSSignatureSize {
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return fmt.Errorf("invalid signature size %d", len(sc.Signature))
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}
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copy(s.Signers[:], sc.Signers)
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copy(s.Signature[:], sc.Signature)
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return nil
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type syncAggregateMarshaling struct {
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Signers hexutil.Bytes
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Signature hexutil.Bytes
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}
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// SignerCount returns the number of signers in the aggregate signature.
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51
beacon/types/gen_syncaggregate_json.go
Normal file
51
beacon/types/gen_syncaggregate_json.go
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@ -0,0 +1,51 @@
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// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
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package types
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import (
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"encoding/json"
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"errors"
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"github.com/ethereum/go-ethereum/common/hexutil"
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)
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var _ = (*syncAggregateMarshaling)(nil)
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// MarshalJSON marshals as JSON.
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func (s SyncAggregate) MarshalJSON() ([]byte, error) {
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type SyncAggregate struct {
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Signers hexutil.Bytes `gencodec:"required" json:"sync_committee_bits"`
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Signature hexutil.Bytes `gencodec:"required" json:"sync_committee_signature"`
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}
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var enc SyncAggregate
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enc.Signers = s.Signers[:]
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enc.Signature = s.Signature[:]
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return json.Marshal(&enc)
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}
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// UnmarshalJSON unmarshals from JSON.
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func (s *SyncAggregate) UnmarshalJSON(input []byte) error {
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type SyncAggregate struct {
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Signers *hexutil.Bytes `gencodec:"required" json:"sync_committee_bits"`
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Signature *hexutil.Bytes `gencodec:"required" json:"sync_committee_signature"`
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}
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var dec SyncAggregate
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if err := json.Unmarshal(input, &dec); err != nil {
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return err
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}
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if dec.Signers == nil {
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return errors.New("missing required field 'sync_committee_bits' for SyncAggregate")
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}
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if len(*dec.Signers) != len(s.Signers) {
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return errors.New("field 'sync_committee_bits' has wrong length, need 64 items")
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}
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copy(s.Signers[:], *dec.Signers)
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if dec.Signature == nil {
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return errors.New("missing required field 'sync_committee_signature' for SyncAggregate")
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}
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if len(*dec.Signature) != len(s.Signature) {
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return errors.New("field 'sync_committee_signature' has wrong length, need 96 items")
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}
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copy(s.Signature[:], *dec.Signature)
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return nil
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}
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