Mark Literal as #[non_exhaustive] (BREAKING)

Not sure why I did not do that in 618d9a5 too. I also didn't mark
the addition of the `CString` variant as breaking change in the
changelog before.

Author: LukasKalbertodt

CHANGELOG.md

@@ -16,7 +16,7 @@ If there are no problems with this release, it will be released as 1.0 after som
 - **Breaking**: Remove `proc-macro2` from default features
 - **Breaking**: Make `StringLit<String>::into_value` return `String` instead of `Cow<'static, str>`.
   Make `ByteStringLit<String>::into_value` return `Vec<u8>` instead of `Cow<'static, [u8]>`.
-- Add support for C string literals
+- Add support for C string literals (also breaking due to new enum variant)
 - Limit number of `#` as delimiter of raw string literals to 256 (to align with spec)
 - Fix license in `Cargo.toml` to use proper SPDX format (in #19, thanks @atouchet)
 - Fix error span for `InvalidStartOfUnicodeEscape` errors

src/lib.rs

@@ -125,6 +125,7 @@
 //!     Literal::Byte(lit) => { /* ... */ }
 //!     Literal::ByteString(lit) => { /* ... */ }
 //!     Literal::CString(lit) => { /* ... */ }
+//!     _ => { /* ... */ }
 //! }
 //! ```
 //!
@@ -202,6 +203,7 @@ pub use self::{
 /// available of the corresponding crate features are enabled (they are enabled
 /// by default).
 #[derive(Debug, Clone, PartialEq, Eq)]
+#[non_exhaustive]
 pub enum Literal<B: Buffer> {
     Bool(BoolLit),
     Integer(IntegerLit<B>),