diff options
| -rw-r--r-- | openpgp/src/message/mod.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/openpgp/src/message/mod.rs b/openpgp/src/message/mod.rs index 0839d482..5e1c2fba 100644 --- a/openpgp/src/message/mod.rs +++ b/openpgp/src/message/mod.rs @@ -36,12 +36,19 @@ use lalrpop_util::ParseError; use self::grammar::MessageParser; /// Errors that MessageValidator::check may return. +/// +/// Note: This enum cannot be exhaustively matched to allow future +/// extensions. #[derive(Debug, Clone)] pub enum MessageParserError { /// A parser error. Parser(ParseError<usize, Token, LexicalError>), /// An OpenPGP error. OpenPGP(Error), + + /// This marks this enum as non-exhaustive. Do not use this + /// variant. + #[doc(hidden)] __Nonexhaustive, } impl From<MessageParserError> for failure::Error { @@ -49,6 +56,7 @@ impl From<MessageParserError> for failure::Error { match err { MessageParserError::Parser(p) => p.into(), MessageParserError::OpenPGP(p) => p.into(), + MessageParserError::__Nonexhaustive => unreachable!(), } } } |