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validator.go
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validator.go
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package hotstuff
import (
"github.com/onflow/flow-go/consensus/hotstuff/model"
"github.com/onflow/flow-go/model/flow"
)
// Validator provides functions to validate QC, proposals and votes.
type Validator interface {
// ValidateQC checks the validity of a QC.
// During normal operations, the following error returns are expected:
// * model.InvalidQCError if the QC is invalid
// * model.ErrViewForUnknownEpoch if the QC refers unknown epoch
ValidateQC(qc *flow.QuorumCertificate) error
// ValidateTC checks the validity of a TC.
// During normal operations, the following error returns are expected:
// * model.InvalidTCError if the TC is invalid
// * model.ErrViewForUnknownEpoch if the TC refers unknown epoch
ValidateTC(tc *flow.TimeoutCertificate) error
// ValidateProposal checks the validity of a proposal.
// During normal operations, the following error returns are expected:
// * model.InvalidProposalError if the block is invalid
// * model.ErrViewForUnknownEpoch if the proposal refers unknown epoch
ValidateProposal(proposal *model.Proposal) error
// ValidateVote checks the validity of a vote.
// Returns the full entity for the voter. During normal operations,
// the following errors are expected:
// * model.InvalidVoteError for invalid votes
// * model.ErrViewForUnknownEpoch if the vote refers unknown epoch
ValidateVote(vote *model.Vote) (*flow.IdentitySkeleton, error)
}