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use revm_primitives::{EVMError, InvalidTransaction}; | ||
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/// Abstraction over transaction validation error. | ||
pub trait InvalidTxError: core::error::Error + Send + Sync + 'static { | ||
/// Returns whether the error cause by transaction having a nonce lower than expected. | ||
fn is_nonce_too_low(&self) -> bool; | ||
} | ||
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impl InvalidTxError for InvalidTransaction { | ||
fn is_nonce_too_low(&self) -> bool { | ||
matches!(self, Self::NonceTooLow { .. }) | ||
} | ||
} | ||
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/// Abstraction over errors that can occur during EVM execution. | ||
/// | ||
/// It's assumed that errors can occur either because of an invalid transaction, meaning that other | ||
/// transaction might still result in successful execution, or because of a general EVM | ||
/// misconfiguration. | ||
/// | ||
/// If caller occurs a error different from [`EvmError::InvalidTransaction`], it should most likely | ||
/// be treated as fatal error flagging some EVM misconfiguration. | ||
pub trait EvmError: core::error::Error + Send + Sync + 'static { | ||
/// Errors which might occur as a result of an invalid transaction. i.e unrelated to general EVM | ||
/// configuration. | ||
type InvalidTransaction: InvalidTxError; | ||
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/// Returns the [`EvmError::InvalidTransaction`] if the error is an invalid transaction error. | ||
fn as_invalid_tx_err(&self) -> Option<&Self::InvalidTransaction>; | ||
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/// Returns `true` if the error is an invalid transaction error. | ||
fn is_invalid_tx_err(&self) -> bool { | ||
self.as_invalid_tx_err().is_some() | ||
} | ||
} | ||
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impl<DBError> EvmError for EVMError<DBError> | ||
where | ||
DBError: core::error::Error + Send + Sync + 'static, | ||
{ | ||
type InvalidTransaction = InvalidTransaction; | ||
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fn as_invalid_tx_err(&self) -> Option<&Self::InvalidTransaction> { | ||
match self { | ||
Self::Transaction(err) => Some(err), | ||
_ => None, | ||
} | ||
} | ||
} |
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