#[derive(Debug, thiserror::Error)]
pub(crate) enum DictionaryError {
#[error("invalid provenance manifest: {0}")]
Manifest(#[from] serde_json::Error),
#[error("unsupported bundle version {0}")]
Version(u32),
#[error("dictionary checksum mismatch in section {0}")]
Checksum(u32),
#[error("invalid {section} at byte {offset}: {reason}")]
Invalid {
section: &'static str,
offset: usize,
reason: &'static str,
},
#[error("dictionary needs {required} {resource}, exceeding limit {limit}")]
Limit {
resource: &'static str,
required: usize,
limit: usize,
},
#[error("dictionary allocation failed: {0}")]
Allocation(#[from] std::collections::TryReserveError),
#[error("invalid UTF-8 in dictionary: {0}")]
Utf8(#[from] std::str::Utf8Error),
}
pub(super) fn invalid(section: &'static str, reason: &'static str) -> DictionaryError {
DictionaryError::Invalid {
section,
offset: 0,
reason,
}
}
pub(crate) fn check_limit(
resource: &'static str,
required: usize,
limit: usize,
) -> super::DictionaryResult<()> {
if required > limit {
return Err(DictionaryError::Limit {
resource,
required,
limit,
});
}
Ok(())
}