// Convenience method.
// Signs the vote and sets the POL's vote at the desired index
// Returns the POLVoteSignature pointer, so you can modify it afterwards.
func signAddPOLVoteSignature(val *sm.PrivValidator, valSet *sm.ValidatorSet, vote *types.Vote, pol *POL) *POLVoteSignature {
vote = vote.Copy()
err := val.SignVote(vote)
if err != nil {
panic(err)
}
idx, _ := valSet.GetByAddress(val.Address) // now we have the index
pol.Votes[idx] = POLVoteSignature{vote.Round, vote.Signature}
return &pol.Votes[idx]
}
