1.9.0[−][src]Trait std::panic::UnwindSafe
A marker trait which represents "panic safe" types in Rust.
This trait is implemented by default for many types and behaves similarly in
terms of inference of implementation to the Send
and Sync
traits. The
purpose of this trait is to encode what types are safe to cross a catch_unwind
boundary with no fear of unwind safety.
What is unwind safety?
In Rust a function can "return" early if it either panics or calls a function which transitively panics. This sort of control flow is not always anticipated, and has the possibility of causing subtle bugs through a combination of two critical components:
- A data structure is in a temporarily invalid state when the thread panics.
- This broken invariant is then later observed.
Typically in Rust, it is difficult to perform step (2) because catching a
panic involves either spawning a thread (which in turns makes it difficult
to later witness broken invariants) or using the catch_unwind
function in this
module. Additionally, even if an invariant is witnessed, it typically isn't a
problem in Rust because there are no uninitialized values (like in C or C++).
It is possible, however, for logical invariants to be broken in Rust,
which can end up causing behavioral bugs. Another key aspect of unwind safety
in Rust is that, in the absence of unsafe
code, a panic cannot lead to
memory unsafety.
That was a bit of a whirlwind tour of unwind safety, but for more information about unwind safety and how it applies to Rust, see an associated RFC.
What is UnwindSafe
?
Now that we've got an idea of what unwind safety is in Rust, it's also
important to understand what this trait represents. As mentioned above, one
way to witness broken invariants is through the catch_unwind
function in this
module as it allows catching a panic and then re-using the environment of
the closure.
Simply put, a type T
implements UnwindSafe
if it cannot easily allow
witnessing a broken invariant through the use of catch_unwind
(catching a
panic). This trait is an auto trait, so it is automatically implemented for
many types, and it is also structurally composed (e.g., a struct is unwind
safe if all of its components are unwind safe).
Note, however, that this is not an unsafe trait, so there is not a succinct
contract that this trait is providing. Instead it is intended as more of a
"speed bump" to alert users of catch_unwind
that broken invariants may be
witnessed and may need to be accounted for.
Who implements UnwindSafe
?
Types such as &mut T
and &RefCell<T>
are examples which are not
unwind safe. The general idea is that any mutable state which can be shared
across catch_unwind
is not unwind safe by default. This is because it is very
easy to witness a broken invariant outside of catch_unwind
as the data is
simply accessed as usual.
Types like &Mutex<T>
, however, are unwind safe because they implement
poisoning by default. They still allow witnessing a broken invariant, but
they already provide their own "speed bumps" to do so.
When should UnwindSafe
be used?
It is not intended that most types or functions need to worry about this trait.
It is only used as a bound on the catch_unwind
function and as mentioned
above, the lack of unsafe
means it is mostly an advisory. The
AssertUnwindSafe
wrapper struct can be used to force this trait to be
implemented for any closed over variables passed to catch_unwind
.
Implementations on Foreign Types
impl UnwindSafe for Argument
impl UnwindSafe for FormatSpec
impl UnwindSafe for Alignment
impl UnwindSafe for Count
impl UnwindSafe for Position
impl<T: UnwindSafe + ?Sized> UnwindSafe for Unique<T>
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Implementors
impl<'_, T: RefUnwindSafe + ?Sized> UnwindSafe for &'_ T
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impl<'_, T: ?Sized> !UnwindSafe for &'_ mut T
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impl<K, V, S> UnwindSafe for HashMap<K, V, S> where
K: UnwindSafe,
V: UnwindSafe,
S: UnwindSafe,
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K: UnwindSafe,
V: UnwindSafe,
S: UnwindSafe,
impl<T> UnwindSafe for AssertUnwindSafe<T>
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impl<T: RefUnwindSafe + ?Sized> UnwindSafe for *const T
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impl<T: RefUnwindSafe + ?Sized> UnwindSafe for *mut T
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impl<T: RefUnwindSafe + ?Sized> UnwindSafe for NonNull<T>
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impl<T: RefUnwindSafe + ?Sized> UnwindSafe for Rc<T>
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impl<T: RefUnwindSafe + ?Sized> UnwindSafe for Arc<T>
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impl<T: ?Sized> UnwindSafe for Mutex<T>
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impl<T: ?Sized> UnwindSafe for RwLock<T>
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Auto implementors
impl !UnwindSafe for std::io::Error
impl !UnwindSafe for Command
impl !UnwindSafe for std::sync::Once
impl !UnwindSafe for Thread
impl UnwindSafe for BacktraceStatus
impl UnwindSafe for std::cmp::Ordering
impl UnwindSafe for TryReserveError
impl UnwindSafe for Infallible
impl UnwindSafe for VarError
impl UnwindSafe for c_void
impl UnwindSafe for std::fmt::Alignment
impl UnwindSafe for ErrorKind
impl UnwindSafe for SeekFrom
impl UnwindSafe for IpAddr
impl UnwindSafe for Ipv6MulticastScope
impl UnwindSafe for Shutdown
impl UnwindSafe for std::net::SocketAddr
impl UnwindSafe for FpCategory
impl UnwindSafe for IntErrorKind
impl UnwindSafe for SearchStep
impl UnwindSafe for std::sync::atomic::Ordering
impl UnwindSafe for RecvTimeoutError
impl UnwindSafe for TryRecvError
impl UnwindSafe for bool
impl UnwindSafe for char
impl UnwindSafe for f32
impl UnwindSafe for f64
impl UnwindSafe for i128
impl UnwindSafe for i16
impl UnwindSafe for i32
impl UnwindSafe for i64
impl UnwindSafe for i8
impl UnwindSafe for isize
impl UnwindSafe for [u8]
impl UnwindSafe for str
impl UnwindSafe for u128
impl UnwindSafe for u16
impl UnwindSafe for u32
impl UnwindSafe for u64
impl UnwindSafe for u8
impl UnwindSafe for usize
impl UnwindSafe for AllocErr
impl UnwindSafe for CannotReallocInPlace
impl UnwindSafe for Excess
impl UnwindSafe for Global
impl UnwindSafe for Layout
impl UnwindSafe for LayoutErr
impl UnwindSafe for System
impl UnwindSafe for TypeId
impl UnwindSafe for TryFromSliceError
impl UnwindSafe for std::ascii::EscapeDefault
impl UnwindSafe for Backtrace
impl UnwindSafe for BorrowError
impl UnwindSafe for BorrowMutError
impl UnwindSafe for CharTryFromError
impl UnwindSafe for DecodeUtf16Error
impl UnwindSafe for std::char::EscapeDebug
impl UnwindSafe for std::char::EscapeDefault
impl UnwindSafe for std::char::EscapeUnicode
impl UnwindSafe for ParseCharError
impl UnwindSafe for ToLowercase
impl UnwindSafe for ToUppercase
impl UnwindSafe for UnicodeVersion
impl UnwindSafe for DefaultHasher
impl UnwindSafe for RandomState
impl UnwindSafe for Args
impl UnwindSafe for ArgsOs
impl UnwindSafe for JoinPathsError
impl UnwindSafe for Vars
impl UnwindSafe for VarsOs
impl UnwindSafe for CStr
impl UnwindSafe for CString
impl UnwindSafe for FromBytesWithNulError
impl UnwindSafe for IntoStringError
impl UnwindSafe for NulError
impl UnwindSafe for OsStr
impl UnwindSafe for OsString
impl UnwindSafe for std::fmt::Error
impl UnwindSafe for DirBuilder
impl UnwindSafe for DirEntry
impl UnwindSafe for File
impl UnwindSafe for FileType
impl UnwindSafe for Metadata
impl UnwindSafe for OpenOptions
impl UnwindSafe for Permissions
impl UnwindSafe for ReadDir
impl UnwindSafe for SipHasher
impl UnwindSafe for std::io::Empty
impl UnwindSafe for Initializer
impl UnwindSafe for std::io::Repeat
impl UnwindSafe for Sink
impl UnwindSafe for Stderr
impl UnwindSafe for Stdin
impl UnwindSafe for Stdout
impl UnwindSafe for PhantomPinned
impl UnwindSafe for AddrParseError
impl UnwindSafe for Ipv4Addr
impl UnwindSafe for Ipv6Addr
impl UnwindSafe for SocketAddrV4
impl UnwindSafe for SocketAddrV6
impl UnwindSafe for TcpListener
impl UnwindSafe for TcpStream
impl UnwindSafe for UdpSocket
impl UnwindSafe for NonZeroI128
impl UnwindSafe for NonZeroI16
impl UnwindSafe for NonZeroI32
impl UnwindSafe for NonZeroI64
impl UnwindSafe for NonZeroI8
impl UnwindSafe for NonZeroIsize
impl UnwindSafe for NonZeroU128
impl UnwindSafe for NonZeroU16
impl UnwindSafe for NonZeroU32
impl UnwindSafe for NonZeroU64
impl UnwindSafe for NonZeroU8
impl UnwindSafe for NonZeroUsize
impl UnwindSafe for ParseFloatError
impl UnwindSafe for ParseIntError
impl UnwindSafe for TryFromIntError
impl UnwindSafe for RangeFull
impl UnwindSafe for NoneError
impl UnwindSafe for stat
impl UnwindSafe for std::os::unix::net::SocketAddr
impl UnwindSafe for UnixDatagram
impl UnwindSafe for UnixListener
impl UnwindSafe for UnixStream
impl UnwindSafe for Path
impl UnwindSafe for PathBuf
impl UnwindSafe for StripPrefixError
impl UnwindSafe for Child
impl UnwindSafe for ChildStderr
impl UnwindSafe for ChildStdin
impl UnwindSafe for ChildStdout
impl UnwindSafe for ExitCode
impl UnwindSafe for ExitStatus
impl UnwindSafe for Output
impl UnwindSafe for Stdio
impl UnwindSafe for TraitObject
impl UnwindSafe for ParseBoolError
impl UnwindSafe for Utf8Error
impl UnwindSafe for FromUtf16Error
impl UnwindSafe for FromUtf8Error
impl UnwindSafe for String
impl UnwindSafe for AtomicBool
impl UnwindSafe for AtomicI16
impl UnwindSafe for AtomicI32
impl UnwindSafe for AtomicI64
impl UnwindSafe for AtomicI8
impl UnwindSafe for AtomicIsize
impl UnwindSafe for AtomicU16
impl UnwindSafe for AtomicU32
impl UnwindSafe for AtomicU64
impl UnwindSafe for AtomicU8
impl UnwindSafe for AtomicUsize
impl UnwindSafe for RecvError
impl UnwindSafe for Barrier
impl UnwindSafe for BarrierWaitResult
impl UnwindSafe for Condvar
impl UnwindSafe for OnceState
impl UnwindSafe for WaitTimeoutResult
impl UnwindSafe for RawWaker
impl UnwindSafe for RawWakerVTable
impl UnwindSafe for Waker
impl UnwindSafe for AccessError
impl UnwindSafe for Builder
impl UnwindSafe for ThreadId
impl UnwindSafe for Duration
impl UnwindSafe for Instant
impl UnwindSafe for SystemTime
impl UnwindSafe for SystemTimeError
impl<'a> !UnwindSafe for ErrorIter<'a>
impl<'a> !UnwindSafe for Arguments<'a>
impl<'a> !UnwindSafe for Formatter<'a>
impl<'a> !UnwindSafe for IoSliceMut<'a>
impl<'a> !UnwindSafe for PanicInfo<'a>
impl<'a> UnwindSafe for Component<'a>
impl<'a> UnwindSafe for Prefix<'a>
impl<'a> UnwindSafe for SplitPaths<'a>
impl<'a> UnwindSafe for IoSlice<'a>
impl<'a> UnwindSafe for StderrLock<'a>
impl<'a> UnwindSafe for StdinLock<'a>
impl<'a> UnwindSafe for StdoutLock<'a>
impl<'a> UnwindSafe for std::net::Incoming<'a>
impl<'a> UnwindSafe for std::os::unix::net::Incoming<'a>
impl<'a> UnwindSafe for EncodeWide<'a>
impl<'a> UnwindSafe for Location<'a>
impl<'a> UnwindSafe for Ancestors<'a>
impl<'a> UnwindSafe for Components<'a>
impl<'a> UnwindSafe for Display<'a>
impl<'a> UnwindSafe for std::path::Iter<'a>
impl<'a> UnwindSafe for PrefixComponent<'a>
impl<'a> UnwindSafe for CharSearcher<'a>
impl<'a> UnwindSafe for std::str::Bytes<'a>
impl<'a> UnwindSafe for CharIndices<'a>
impl<'a> UnwindSafe for Chars<'a>
impl<'a> UnwindSafe for EncodeUtf16<'a>
impl<'a> UnwindSafe for std::str::EscapeDebug<'a>
impl<'a> UnwindSafe for std::str::EscapeDefault<'a>
impl<'a> UnwindSafe for std::str::EscapeUnicode<'a>
impl<'a> UnwindSafe for std::str::Lines<'a>
impl<'a> UnwindSafe for LinesAny<'a>
impl<'a> UnwindSafe for SplitAsciiWhitespace<'a>
impl<'a> UnwindSafe for SplitWhitespace<'a>
impl<'a> UnwindSafe for std::string::Drain<'a>
impl<'a> UnwindSafe for Context<'a>
impl<'a, 'b> !UnwindSafe for DebugList<'a, 'b>
impl<'a, 'b> !UnwindSafe for DebugMap<'a, 'b>
impl<'a, 'b> !UnwindSafe for DebugSet<'a, 'b>
impl<'a, 'b> !UnwindSafe for DebugStruct<'a, 'b>
impl<'a, 'b> !UnwindSafe for DebugTuple<'a, 'b>
impl<'a, 'b> UnwindSafe for CharSliceSearcher<'a, 'b>
impl<'a, 'b> UnwindSafe for StrSearcher<'a, 'b>
impl<'a, 'f> !UnwindSafe for VaList<'a, 'f>
impl<'a, A> !UnwindSafe for std::option::IterMut<'a, A>
impl<'a, A> UnwindSafe for std::option::Iter<'a, A> where
A: RefUnwindSafe,
A: RefUnwindSafe,
impl<'a, B: ?Sized> UnwindSafe for Cow<'a, B> where
B: RefUnwindSafe,
<B as ToOwned>::Owned: UnwindSafe,
B: RefUnwindSafe,
<B as ToOwned>::Owned: UnwindSafe,
impl<'a, F> UnwindSafe for CharPredicateSearcher<'a, F> where
F: MultiCharEq + UnwindSafe,
F: MultiCharEq + UnwindSafe,
impl<'a, I> UnwindSafe for Splice<'a, I> where
I: UnwindSafe,
<I as Iterator>::Item: RefUnwindSafe,
I: UnwindSafe,
<I as Iterator>::Item: RefUnwindSafe,
impl<'a, K> UnwindSafe for std::collections::hash_set::Drain<'a, K> where
K: RefUnwindSafe + UnwindSafe,
K: RefUnwindSafe + UnwindSafe,
impl<'a, K> UnwindSafe for std::collections::hash_set::Iter<'a, K> where
K: RefUnwindSafe,
K: RefUnwindSafe,
impl<'a, K, V> !UnwindSafe for std::collections::btree_map::Entry<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::hash_map::Entry<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::btree_map::IterMut<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::btree_map::OccupiedEntry<'a, K, V>
impl<'a, K, V> !UnwindSafe for RangeMut<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::btree_map::VacantEntry<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::btree_map::ValuesMut<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::hash_map::IterMut<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::hash_map::OccupiedEntry<'a, K, V>
impl<'a, K, V> !UnwindSafe for RawOccupiedEntryMut<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::hash_map::VacantEntry<'a, K, V>
impl<'a, K, V> !UnwindSafe for std::collections::hash_map::ValuesMut<'a, K, V>
impl<'a, K, V> UnwindSafe for std::collections::btree_map::Iter<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::btree_map::Keys<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::btree_map::Range<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::btree_map::Values<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::hash_map::Drain<'a, K, V> where
K: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
K: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::hash_map::Iter<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::hash_map::Keys<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V> UnwindSafe for std::collections::hash_map::Values<'a, K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, K, V, S> !UnwindSafe for RawEntryMut<'a, K, V, S>
impl<'a, K, V, S> !UnwindSafe for RawEntryBuilderMut<'a, K, V, S>
impl<'a, K, V, S> !UnwindSafe for RawVacantEntryMut<'a, K, V, S>
impl<'a, K, V, S> UnwindSafe for RawEntryBuilder<'a, K, V, S> where
K: RefUnwindSafe,
S: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
S: RefUnwindSafe,
V: RefUnwindSafe,
impl<'a, P> UnwindSafe for MatchIndices<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for Matches<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for RMatchIndices<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for RMatches<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for std::str::RSplit<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for std::str::RSplitN<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for RSplitTerminator<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for std::str::Split<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for std::str::SplitN<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, P> UnwindSafe for SplitTerminator<'a, P> where
<P as Pattern<'a>>::Searcher: UnwindSafe,
<P as Pattern<'a>>::Searcher: UnwindSafe,
impl<'a, T> !UnwindSafe for PeekMut<'a, T>
impl<'a, T> !UnwindSafe for std::collections::linked_list::IterMut<'a, T>
impl<'a, T> !UnwindSafe for std::collections::vec_deque::IterMut<'a, T>
impl<'a, T> !UnwindSafe for std::result::IterMut<'a, T>
impl<'a, T> !UnwindSafe for ChunksExactMut<'a, T>
impl<'a, T> !UnwindSafe for ChunksMut<'a, T>
impl<'a, T> !UnwindSafe for std::slice::IterMut<'a, T>
impl<'a, T> !UnwindSafe for RChunksExactMut<'a, T>
impl<'a, T> !UnwindSafe for RChunksMut<'a, T>
impl<'a, T> !UnwindSafe for std::sync::mpsc::Iter<'a, T>
impl<'a, T> !UnwindSafe for TryIter<'a, T>
impl<'a, T> UnwindSafe for std::collections::binary_heap::Drain<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::binary_heap::Iter<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::btree_set::Difference<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::btree_set::Intersection<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::btree_set::Iter<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::btree_set::Range<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::btree_set::SymmetricDifference<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::btree_set::Union<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::linked_list::Iter<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::vec_deque::Drain<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::collections::vec_deque::Iter<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::result::Iter<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for Chunks<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for ChunksExact<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::slice::Iter<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for RChunks<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for RChunksExact<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for Windows<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T> UnwindSafe for std::vec::Drain<'a, T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T, F> !UnwindSafe for std::collections::linked_list::DrainFilter<'a, T, F>
impl<'a, T, F> !UnwindSafe for std::vec::DrainFilter<'a, T, F>
impl<'a, T, P> !UnwindSafe for RSplitMut<'a, T, P>
impl<'a, T, P> !UnwindSafe for RSplitNMut<'a, T, P>
impl<'a, T, P> !UnwindSafe for SplitMut<'a, T, P>
impl<'a, T, P> !UnwindSafe for SplitNMut<'a, T, P>
impl<'a, T, P> UnwindSafe for std::slice::RSplit<'a, T, P> where
P: UnwindSafe,
T: RefUnwindSafe,
P: UnwindSafe,
T: RefUnwindSafe,
impl<'a, T, P> UnwindSafe for std::slice::RSplitN<'a, T, P> where
P: UnwindSafe,
T: RefUnwindSafe,
P: UnwindSafe,
T: RefUnwindSafe,
impl<'a, T, P> UnwindSafe for std::slice::Split<'a, T, P> where
P: UnwindSafe,
T: RefUnwindSafe,
P: UnwindSafe,
T: RefUnwindSafe,
impl<'a, T, P> UnwindSafe for std::slice::SplitN<'a, T, P> where
P: UnwindSafe,
T: RefUnwindSafe,
P: UnwindSafe,
T: RefUnwindSafe,
impl<'a, T, S> UnwindSafe for std::collections::hash_set::Difference<'a, T, S> where
S: RefUnwindSafe,
T: RefUnwindSafe,
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T, S> UnwindSafe for std::collections::hash_set::Intersection<'a, T, S> where
S: RefUnwindSafe,
T: RefUnwindSafe,
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T, S> UnwindSafe for std::collections::hash_set::SymmetricDifference<'a, T, S> where
S: RefUnwindSafe,
T: RefUnwindSafe,
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T, S> UnwindSafe for std::collections::hash_set::Union<'a, T, S> where
S: RefUnwindSafe,
T: RefUnwindSafe,
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, T: ?Sized> UnwindSafe for MutexGuard<'a, T>
impl<'a, T: ?Sized> UnwindSafe for RwLockReadGuard<'a, T>
impl<'a, T: ?Sized> UnwindSafe for RwLockWriteGuard<'a, T>
impl<'b, T> !UnwindSafe for Ref<'b, T>
impl<'b, T> !UnwindSafe for RefMut<'b, T>
impl<'f> !UnwindSafe for VaListImpl<'f>
impl<A> UnwindSafe for std::iter::Repeat<A> where
A: UnwindSafe,
A: UnwindSafe,
impl<A> UnwindSafe for std::option::IntoIter<A> where
A: UnwindSafe,
A: UnwindSafe,
impl<A, B> UnwindSafe for std::iter::Chain<A, B> where
A: UnwindSafe,
B: UnwindSafe,
A: UnwindSafe,
B: UnwindSafe,
impl<A, B> UnwindSafe for Zip<A, B> where
A: UnwindSafe,
B: UnwindSafe,
A: UnwindSafe,
B: UnwindSafe,
impl<B> UnwindSafe for std::io::Lines<B> where
B: UnwindSafe,
B: UnwindSafe,
impl<B> UnwindSafe for std::io::Split<B> where
B: UnwindSafe,
B: UnwindSafe,
impl<F> UnwindSafe for FromFn<F> where
F: UnwindSafe,
F: UnwindSafe,
impl<F> UnwindSafe for OnceWith<F> where
F: UnwindSafe,
F: UnwindSafe,
impl<F> UnwindSafe for RepeatWith<F> where
F: UnwindSafe,
F: UnwindSafe,
impl<H> UnwindSafe for BuildHasherDefault<H> where
H: UnwindSafe,
H: UnwindSafe,
impl<I> UnwindSafe for DecodeUtf16<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for Cloned<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for Copied<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for Cycle<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for Enumerate<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for Flatten<I> where
I: UnwindSafe,
<<I as Iterator>::Item as IntoIterator>::IntoIter: UnwindSafe,
I: UnwindSafe,
<<I as Iterator>::Item as IntoIterator>::IntoIter: UnwindSafe,
impl<I> UnwindSafe for Fuse<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for Peekable<I> where
I: UnwindSafe,
<I as Iterator>::Item: UnwindSafe,
I: UnwindSafe,
<I as Iterator>::Item: UnwindSafe,
impl<I> UnwindSafe for Skip<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for StepBy<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I> UnwindSafe for std::iter::Take<I> where
I: UnwindSafe,
I: UnwindSafe,
impl<I, F> UnwindSafe for FilterMap<I, F> where
F: UnwindSafe,
I: UnwindSafe,
F: UnwindSafe,
I: UnwindSafe,
impl<I, F> UnwindSafe for Inspect<I, F> where
F: UnwindSafe,
I: UnwindSafe,
F: UnwindSafe,
I: UnwindSafe,
impl<I, F> UnwindSafe for Map<I, F> where
F: UnwindSafe,
I: UnwindSafe,
F: UnwindSafe,
I: UnwindSafe,
impl<I, P> UnwindSafe for Filter<I, P> where
I: UnwindSafe,
P: UnwindSafe,
I: UnwindSafe,
P: UnwindSafe,
impl<I, P> UnwindSafe for SkipWhile<I, P> where
I: UnwindSafe,
P: UnwindSafe,
I: UnwindSafe,
P: UnwindSafe,
impl<I, P> UnwindSafe for TakeWhile<I, P> where
I: UnwindSafe,
P: UnwindSafe,
I: UnwindSafe,
P: UnwindSafe,
impl<I, St, F> UnwindSafe for Scan<I, St, F> where
F: UnwindSafe,
I: UnwindSafe,
St: UnwindSafe,
F: UnwindSafe,
I: UnwindSafe,
St: UnwindSafe,
impl<I, U, F> UnwindSafe for FlatMap<I, U, F> where
F: UnwindSafe,
I: UnwindSafe,
<U as IntoIterator>::IntoIter: UnwindSafe,
F: UnwindSafe,
I: UnwindSafe,
<U as IntoIterator>::IntoIter: UnwindSafe,
impl<Idx> UnwindSafe for std::ops::Range<Idx> where
Idx: UnwindSafe,
Idx: UnwindSafe,
impl<Idx> UnwindSafe for RangeFrom<Idx> where
Idx: UnwindSafe,
Idx: UnwindSafe,
impl<Idx> UnwindSafe for RangeInclusive<Idx> where
Idx: UnwindSafe,
Idx: UnwindSafe,
impl<Idx> UnwindSafe for RangeTo<Idx> where
Idx: UnwindSafe,
Idx: UnwindSafe,
impl<Idx> UnwindSafe for RangeToInclusive<Idx> where
Idx: UnwindSafe,
Idx: UnwindSafe,
impl<K> UnwindSafe for std::collections::hash_set::IntoIter<K> where
K: RefUnwindSafe + UnwindSafe,
K: RefUnwindSafe + UnwindSafe,
impl<K, V> UnwindSafe for BTreeMap<K, V> where
K: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
K: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
impl<K, V> UnwindSafe for std::collections::btree_map::IntoIter<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<K, V> UnwindSafe for std::collections::hash_map::IntoIter<K, V> where
K: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
K: RefUnwindSafe + UnwindSafe,
V: RefUnwindSafe + UnwindSafe,
impl<P> UnwindSafe for Pin<P> where
P: UnwindSafe,
P: UnwindSafe,
impl<R> UnwindSafe for BufReader<R> where
R: UnwindSafe,
R: UnwindSafe,
impl<R> UnwindSafe for std::io::Bytes<R> where
R: UnwindSafe,
R: UnwindSafe,
impl<T> !UnwindSafe for std::rc::Weak<T>
impl<T> !UnwindSafe for std::sync::mpsc::IntoIter<T>
impl<T> !UnwindSafe for Receiver<T>
impl<T> !UnwindSafe for Sender<T>
impl<T> !UnwindSafe for JoinHandle<T>
impl<T> UnwindSafe for Bound<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for Option<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for TryLockError<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for TrySendError<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for Poll<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for [T] where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for Reverse<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for BinaryHeap<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for std::collections::binary_heap::IntoIter<T> where
T: RefUnwindSafe + UnwindSafe,
T: RefUnwindSafe + UnwindSafe,
impl<T> UnwindSafe for BTreeSet<T> where
T: RefUnwindSafe + UnwindSafe,
T: RefUnwindSafe + UnwindSafe,
impl<T> UnwindSafe for std::collections::btree_set::IntoIter<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> UnwindSafe for std::collections::linked_list::IntoIter<T> where
T: RefUnwindSafe + UnwindSafe,
T: RefUnwindSafe + UnwindSafe,
impl<T> UnwindSafe for LinkedList<T> where
T: RefUnwindSafe + UnwindSafe,
T: RefUnwindSafe + UnwindSafe,
impl<T> UnwindSafe for std::collections::vec_deque::IntoIter<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for VecDeque<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for Cursor<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for std::io::Take<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for std::iter::Empty<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for std::iter::Once<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for Rev<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for Discriminant<T>
impl<T> UnwindSafe for Wrapping<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for std::result::IntoIter<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for AtomicPtr<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> UnwindSafe for SendError<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for SyncSender<T>
impl<T> UnwindSafe for PoisonError<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for LocalKey<T>
impl<T> UnwindSafe for std::vec::IntoIter<T> where
T: RefUnwindSafe + UnwindSafe,
T: RefUnwindSafe + UnwindSafe,
impl<T> UnwindSafe for Vec<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> UnwindSafe for MaybeUninit<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T, E> UnwindSafe for Result<T, E> where
E: UnwindSafe,
T: UnwindSafe,
E: UnwindSafe,
T: UnwindSafe,
impl<T, F> UnwindSafe for Successors<T, F> where
F: UnwindSafe,
T: UnwindSafe,
F: UnwindSafe,
T: UnwindSafe,
impl<T, S> UnwindSafe for HashSet<T, S> where
S: UnwindSafe,
T: UnwindSafe,
S: UnwindSafe,
T: UnwindSafe,
impl<T, U> UnwindSafe for std::io::Chain<T, U> where
T: UnwindSafe,
U: UnwindSafe,
T: UnwindSafe,
U: UnwindSafe,
impl<T: ?Sized> UnwindSafe for Box<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T: ?Sized> UnwindSafe for Cell<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T: ?Sized> UnwindSafe for RefCell<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T: ?Sized> UnwindSafe for UnsafeCell<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T: ?Sized> UnwindSafe for PhantomData<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T: ?Sized> UnwindSafe for ManuallyDrop<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T: ?Sized> UnwindSafe for std::sync::Weak<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<W> !UnwindSafe for IntoInnerError<W>
impl<W> UnwindSafe for BufWriter<W> where
W: UnwindSafe,
W: UnwindSafe,
impl<W> UnwindSafe for LineWriter<W> where
W: UnwindSafe,
W: UnwindSafe,
impl<Y, R> UnwindSafe for GeneratorState<Y, R> where
R: UnwindSafe,
Y: UnwindSafe,
R: UnwindSafe,
Y: UnwindSafe,