use std::fmt::Debug; use crate::mvcc::database::{LogRecord, Result}; use crate::mvcc::errors::DatabaseError; #[derive(Debug)] pub enum Storage { Noop, } impl Storage { pub fn new_noop() -> Self { Self::Noop } } impl Storage { pub fn log_tx(&self, _m: LogRecord) -> Result<()> { match self { Self::Noop => (), } Ok(()) } pub fn read_tx_log(&self) -> Result> { match self { Self::Noop => Err(DatabaseError::Io( "cannot read from Noop storage".to_string(), )), } } }