101 lines
3.5 KiB
Go
101 lines
3.5 KiB
Go
package gov
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// validatorGovInfo used for tallying
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type validatorGovInfo struct {
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Address sdk.Address // sdk.Address of the validator owner
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Power sdk.Rat // Power of a Validator
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DelegatorShares sdk.Rat // Total outstanding delegator shares
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Minus sdk.Rat // Minus of validator, used to compute validator's voting power
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Vote VoteOption // Vote of the validator
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}
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func tally(ctx sdk.Context, keeper Keeper, proposal Proposal) (passes bool, nonVoting []sdk.Address) {
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results := make(map[VoteOption]sdk.Rat)
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results[OptionYes] = sdk.ZeroRat()
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results[OptionAbstain] = sdk.ZeroRat()
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results[OptionNo] = sdk.ZeroRat()
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results[OptionNoWithVeto] = sdk.ZeroRat()
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totalVotingPower := sdk.ZeroRat()
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currValidators := make(map[string]validatorGovInfo)
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keeper.vs.IterateValidatorsBonded(ctx, func(index int64, validator sdk.Validator) (stop bool) {
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currValidators[validator.GetOwner().String()] = validatorGovInfo{
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Address: validator.GetOwner(),
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Power: validator.GetPower(),
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DelegatorShares: validator.GetDelegatorShares(),
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Minus: sdk.ZeroRat(),
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Vote: OptionEmpty,
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}
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return false
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})
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// iterate over all the votes
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votesIterator := keeper.GetVotes(ctx, proposal.GetProposalID())
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for ; votesIterator.Valid(); votesIterator.Next() {
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vote := &Vote{}
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keeper.cdc.MustUnmarshalBinary(votesIterator.Value(), vote)
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// if validator, just record it in the map
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// if delegator tally voting power
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if val, ok := currValidators[vote.Voter.String()]; ok {
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val.Vote = vote.Option
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currValidators[vote.Voter.String()] = val
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} else {
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keeper.ds.IterateDelegations(ctx, vote.Voter, func(index int64, delegation sdk.Delegation) (stop bool) {
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val := currValidators[delegation.GetValidator().String()]
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val.Minus = val.Minus.Add(delegation.GetBondShares())
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currValidators[delegation.GetValidator().String()] = val
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delegatorShare := delegation.GetBondShares().Quo(val.DelegatorShares)
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votingPower := val.Power.Mul(delegatorShare)
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results[vote.Option] = results[vote.Option].Add(votingPower)
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totalVotingPower = totalVotingPower.Add(votingPower)
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return false
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})
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}
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keeper.deleteVote(ctx, vote.ProposalID, vote.Voter)
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}
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votesIterator.Close()
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// Iterate over the validators again to tally their voting power and see who didn't vote
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nonVoting = []sdk.Address{}
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for _, val := range currValidators {
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if val.Vote == OptionEmpty {
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nonVoting = append(nonVoting, val.Address)
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continue
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}
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sharesAfterMinus := val.DelegatorShares.Sub(val.Minus)
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percentAfterMinus := sharesAfterMinus.Quo(val.DelegatorShares)
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votingPower := val.Power.Mul(percentAfterMinus)
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results[val.Vote] = results[val.Vote].Add(votingPower)
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totalVotingPower = totalVotingPower.Add(votingPower)
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}
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tallyingProcedure := keeper.GetTallyingProcedure()
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// If no one votes, proposal fails
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if totalVotingPower.Sub(results[OptionAbstain]).Equal(sdk.ZeroRat()) {
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return false, nonVoting
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}
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// If more than 1/3 of voters veto, proposal fails
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if results[OptionNoWithVeto].Quo(totalVotingPower).GT(tallyingProcedure.Veto) {
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return false, nonVoting
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}
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// If more than 1/2 of non-abstaining voters vote Yes, proposal passes
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if results[OptionYes].Quo(totalVotingPower.Sub(results[OptionAbstain])).GT(tallyingProcedure.Threshold) {
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return true, nonVoting
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}
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// If more than 1/2 of non-abstaining voters vote No, proposal fails
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return false, nonVoting
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}
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