Merge pull request #501 from ratmice/non_exhaustive_error_kinds

Make `YaccGrammarErrorKind` and `LexErrorKind` `non_exhaustive`.

Author: ltratt

cfgrammar/src/lib/yacc/parser.rs

@@ -23,6 +23,7 @@ use super::{
 
 /// The various different possible Yacc parser errors.
 #[derive(Debug, PartialEq, Eq, Clone)]
+#[non_exhaustive]
 pub enum YaccGrammarErrorKind {
     IllegalInteger,
     IllegalName,

lrlex/src/lib/mod.rs

@@ -47,6 +47,7 @@ impl Error for LexBuildError {}
 
 /// The various different possible Lex parser errors.
 #[derive(Debug, PartialEq, Eq, Clone)]
+#[non_exhaustive]
 pub enum LexErrorKind {
     PrematureEnd,
     RoutinesNotSupported,