bjoernager/rust
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Make std::io::Error #[non_exhaustive]

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This commit is contained in:
varkor 2018-08-15 16:57:06 +01:00
parent a50224804d
commit ea505fd60b
2 changed files with 2 additions and 10 deletions
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11
src/libstd/io/error.rs
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@ -97,6 +97,7 @@ struct Custom {
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)] #[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
#[allow(deprecated)] #[allow(deprecated)]
#[non_exhaustive]
pub enum ErrorKind { pub enum ErrorKind {
/// An entity was not found, often a file. /// An entity was not found, often a file.
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
@ -180,15 +181,6 @@ pub enum ErrorKind {
/// read. /// read.
#[stable(feature = "read_exact", since = "1.6.0")] #[stable(feature = "read_exact", since = "1.6.0")]
UnexpectedEof, UnexpectedEof,
/// A marker variant that tells the compiler that users of this enum cannot
/// match it exhaustively.
#[unstable(feature = "io_error_internals",
reason = "better expressed through extensible enums that this \
enum cannot be exhaustively matched against",
issue = "0")]
#[doc(hidden)]
__Nonexhaustive,
} }
impl ErrorKind { impl ErrorKind {
@ -212,7 +204,6 @@ impl ErrorKind {
ErrorKind::Interrupted => "operation interrupted", ErrorKind::Interrupted => "operation interrupted",
ErrorKind::Other => "other os error", ErrorKind::Other => "other os error",
ErrorKind::UnexpectedEof => "unexpected end of file", ErrorKind::UnexpectedEof => "unexpected end of file",
ErrorKind::__Nonexhaustive => unreachable!()
} }
} }
} }

1
src/libstd/lib.rs
View file

@ -311,6 +311,7 @@
#![feature(doc_keyword)] #![feature(doc_keyword)]
#![feature(panic_info_message)] #![feature(panic_info_message)]
#![feature(panic_implementation)] #![feature(panic_implementation)]
#![feature(non_exhaustive)]
#![default_lib_allocator] #![default_lib_allocator]