105 lines
2.8 KiB
Rust
105 lines
2.8 KiB
Rust
//! Vote program errors
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use {
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log::*,
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num_derive::{FromPrimitive, ToPrimitive},
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solana_sdk::decode_error::DecodeError,
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thiserror::Error,
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};
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/// Reasons the vote might have had an error
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#[derive(Error, Debug, Clone, PartialEq, Eq, FromPrimitive, ToPrimitive)]
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pub enum VoteError {
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#[error("vote already recorded or not in slot hashes history")]
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VoteTooOld,
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#[error("vote slots do not match bank history")]
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SlotsMismatch,
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#[error("vote hash does not match bank hash")]
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SlotHashMismatch,
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#[error("vote has no slots, invalid")]
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EmptySlots,
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#[error("vote timestamp not recent")]
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TimestampTooOld,
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#[error("authorized voter has already been changed this epoch")]
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TooSoonToReauthorize,
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// TODO: figure out how to migrate these new errors
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#[error("Old state had vote which should not have been popped off by vote in new state")]
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LockoutConflict,
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#[error("Proposed state had earlier slot which should have been popped off by later vote")]
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NewVoteStateLockoutMismatch,
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#[error("Vote slots are not ordered")]
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SlotsNotOrdered,
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#[error("Confirmations are not ordered")]
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ConfirmationsNotOrdered,
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#[error("Zero confirmations")]
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ZeroConfirmations,
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#[error("Confirmation exceeds limit")]
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ConfirmationTooLarge,
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#[error("Root rolled back")]
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RootRollBack,
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#[error("Confirmations for same vote were smaller in new proposed state")]
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ConfirmationRollBack,
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#[error("New state contained a vote slot smaller than the root")]
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SlotSmallerThanRoot,
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#[error("New state contained too many votes")]
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TooManyVotes,
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#[error("every slot in the vote was older than the SlotHashes history")]
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VotesTooOldAllFiltered,
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#[error("Proposed root is not in slot hashes")]
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RootOnDifferentFork,
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}
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impl<E> DecodeError<E> for VoteError {
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fn type_of() -> &'static str {
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"VoteError"
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}
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}
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#[cfg(test)]
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mod tests {
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use {super::*, solana_sdk::instruction::InstructionError};
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#[test]
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fn test_custom_error_decode() {
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use num_traits::FromPrimitive;
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fn pretty_err<T>(err: InstructionError) -> String
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where
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T: 'static + std::error::Error + DecodeError<T> + FromPrimitive,
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{
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if let InstructionError::Custom(code) = err {
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let specific_error: T = T::decode_custom_error_to_enum(code).unwrap();
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format!(
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"{:?}: {}::{:?} - {}",
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err,
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T::type_of(),
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specific_error,
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specific_error,
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)
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} else {
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"".to_string()
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}
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}
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assert_eq!(
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"Custom(0): VoteError::VoteTooOld - vote already recorded or not in slot hashes history",
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pretty_err::<VoteError>(VoteError::VoteTooOld.into())
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)
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}
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}
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