Introduces new specific errors and make them implement Into<io::Error> for compatibilitypull/190/head
Tpt
3 years ago
parent
ec850b8ed4
commit
a33dbb6d06
@ -0,0 +1,206 @@ |
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use crate::io::read::ParserError; |
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use std::error::Error; |
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use std::fmt; |
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use std::io; |
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/// An error related to storage operations (reads, writes...).
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#[derive(Debug)] |
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#[non_exhaustive] |
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pub enum StorageError { |
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/// Error from the OS I/O layer.
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Io(io::Error), |
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/// Error related to data corruption.
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Corruption(CorruptionError), |
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#[doc(hidden)] |
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Other(Box<dyn Error + Send + Sync + 'static>), |
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} |
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impl fmt::Display for StorageError { |
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
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match self { |
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Self::Io(e) => e.fmt(f), |
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Self::Corruption(e) => e.fmt(f), |
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Self::Other(e) => e.fmt(f), |
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} |
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} |
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} |
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impl Error for StorageError { |
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fn source(&self) -> Option<&(dyn Error + 'static)> { |
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match self { |
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Self::Io(e) => Some(e), |
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Self::Corruption(e) => Some(e), |
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Self::Other(e) => Some(e.as_ref()), |
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} |
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} |
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} |
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impl From<io::Error> for StorageError { |
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fn from(error: io::Error) -> Self { |
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Self::Io(error) |
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} |
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} |
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impl From<StorageError> for io::Error { |
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fn from(error: StorageError) -> Self { |
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match error { |
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StorageError::Io(error) => error, |
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StorageError::Corruption(error) => error.into(), |
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StorageError::Other(error) => Self::new(io::ErrorKind::Other, error), |
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} |
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} |
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} |
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/// An error return if some content in the database is corrupted.
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#[derive(Debug)] |
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pub struct CorruptionError { |
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inner: CorruptionErrorKind, |
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} |
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#[derive(Debug)] |
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enum CorruptionErrorKind { |
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Msg(String), |
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Other(Box<dyn Error + Send + Sync + 'static>), |
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} |
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impl CorruptionError { |
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/// Builds an error from a printable error message.
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pub(crate) fn new(error: impl Into<Box<dyn Error + Send + Sync + 'static>>) -> Self { |
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Self { |
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inner: CorruptionErrorKind::Other(error.into()), |
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} |
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} |
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/// Builds an error from a printable error message.
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pub(crate) fn msg(msg: impl Into<String>) -> Self { |
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Self { |
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inner: CorruptionErrorKind::Msg(msg.into()), |
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} |
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} |
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} |
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impl fmt::Display for CorruptionError { |
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
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match &self.inner { |
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CorruptionErrorKind::Msg(e) => e.fmt(f), |
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CorruptionErrorKind::Other(e) => e.fmt(f), |
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} |
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} |
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} |
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impl Error for CorruptionError { |
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fn source(&self) -> Option<&(dyn Error + 'static)> { |
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match &self.inner { |
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CorruptionErrorKind::Msg(_) => None, |
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CorruptionErrorKind::Other(e) => Some(e.as_ref()), |
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} |
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} |
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} |
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impl From<CorruptionError> for StorageError { |
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fn from(error: CorruptionError) -> Self { |
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Self::Corruption(error) |
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} |
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} |
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impl From<CorruptionError> for io::Error { |
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fn from(error: CorruptionError) -> Self { |
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Self::new(io::ErrorKind::InvalidData, error) |
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} |
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} |
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/// An error raised while loading a file into a [`Store`](crate::store::Store).
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#[derive(Debug)] |
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pub enum LoaderError { |
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/// An error raised while reading the file.
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Parser(ParserError), |
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/// An error raised during the insertion in the store.
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Storage(StorageError), |
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} |
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impl fmt::Display for LoaderError { |
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
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match self { |
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Self::Parser(e) => e.fmt(f), |
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Self::Storage(e) => e.fmt(f), |
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} |
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} |
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} |
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impl Error for LoaderError { |
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fn source(&self) -> Option<&(dyn Error + 'static)> { |
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match self { |
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Self::Parser(e) => Some(e), |
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Self::Storage(e) => Some(e), |
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} |
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} |
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} |
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impl From<ParserError> for LoaderError { |
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fn from(error: ParserError) -> Self { |
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Self::Parser(error) |
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} |
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} |
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impl From<StorageError> for LoaderError { |
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fn from(error: StorageError) -> Self { |
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Self::Storage(error) |
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} |
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} |
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impl From<LoaderError> for io::Error { |
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fn from(error: LoaderError) -> Self { |
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match error { |
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LoaderError::Storage(error) => error.into(), |
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LoaderError::Parser(error) => error.into(), |
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} |
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} |
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} |
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/// An error raised while writing a file from a [`Store`](crate::store::Store).
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#[derive(Debug)] |
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pub enum SerializerError { |
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/// An error raised while writing the content.
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Io(io::Error), |
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/// An error raised during the lookup in the store.
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Storage(StorageError), |
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} |
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impl fmt::Display for SerializerError { |
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
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match self { |
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Self::Io(e) => e.fmt(f), |
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Self::Storage(e) => e.fmt(f), |
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} |
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} |
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} |
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impl Error for SerializerError { |
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fn source(&self) -> Option<&(dyn Error + 'static)> { |
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match self { |
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Self::Io(e) => Some(e), |
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Self::Storage(e) => Some(e), |
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} |
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} |
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} |
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impl From<io::Error> for SerializerError { |
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fn from(error: io::Error) -> Self { |
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Self::Io(error) |
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} |
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} |
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impl From<StorageError> for SerializerError { |
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fn from(error: StorageError) -> Self { |
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Self::Storage(error) |
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} |
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} |
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impl From<SerializerError> for io::Error { |
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fn from(error: SerializerError) -> Self { |
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match error { |
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SerializerError::Storage(error) => error.into(), |
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SerializerError::Io(error) => error, |
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} |
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} |
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} |
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