1.0.0[−][src]Trait std::prelude::v1::Clone
A common trait for the ability to explicitly duplicate an object.
Differs from Copy
in that Copy
is implicit and extremely inexpensive, while
Clone
is always explicit and may or may not be expensive. In order to enforce
these characteristics, Rust does not allow you to reimplement Copy
, but you
may reimplement Clone
and run arbitrary code.
Since Clone
is more general than Copy
, you can automatically make anything
Copy
be Clone
as well.
Derivable
This trait can be used with #[derive]
if all fields are Clone
. The derive
d
implementation of clone
calls clone
on each field.
For a generic struct, #[derive]
implements Clone
conditionally by adding bound Clone
on
generic parameters.
// `derive` implements Clone for Reading<T> when T is Clone. #[derive(Clone)] struct Reading<T> { frequency: T, }
How can I implement Clone
?
Types that are Copy
should have a trivial implementation of Clone
. More formally:
if T: Copy
, x: T
, and y: &T
, then let x = y.clone();
is equivalent to let x = *y;
.
Manual implementations should be careful to uphold this invariant; however, unsafe code
must not rely on it to ensure memory safety.
An example is a generic struct holding a function pointer. In this case, the
implementation of Clone
cannot be derive
d, but can be implemented as:
struct Generate<T>(fn() -> T); impl<T> Copy for Generate<T> {} impl<T> Clone for Generate<T> { fn clone(&self) -> Self { *self } }
Additional implementors
In addition to the implementors listed below,
the following types also implement Clone
:
- Function item types (i.e., the distinct types defined for each function)
- Function pointer types (e.g.,
fn() -> i32
) - Array types, for all sizes, if the item type also implements
Clone
(e.g.,[i32; 123456]
) - Tuple types, if each component also implements
Clone
(e.g.,()
,(i32, bool)
) - Closure types, if they capture no value from the environment
or if all such captured values implement
Clone
themselves. Note that variables captured by shared reference always implementClone
(even if the referent doesn't), while variables captured by mutable reference never implementClone
.
Required methods
#[must_use = "cloning is often expensive and is not expected to have side effects"]
fn clone(&self) -> Self
Returns a copy of the value.
Examples
let hello = "Hello"; // &str implements Clone assert_eq!("Hello", hello.clone());
Provided methods
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
.
a.clone_from(&b)
is equivalent to a = b.clone()
in functionality,
but can be overridden to reuse the resources of a
to avoid unnecessary
allocations.
Implementations on Foreign Types
impl Clone for isize
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impl Clone for u32
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impl<T> Clone for *const T where
T: ?Sized,
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T: ?Sized,
impl Clone for i8
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impl<'_, T> Clone for &'_ T where
T: ?Sized,
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T: ?Sized,
impl Clone for u128
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impl<T> Clone for *mut T where
T: ?Sized,
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T: ?Sized,
impl Clone for i128
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impl Clone for usize
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impl Clone for f32
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impl Clone for u8
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impl Clone for i32
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impl Clone for u16
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impl Clone for bool
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impl Clone for f64
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impl Clone for i64
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impl Clone for char
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impl Clone for !
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impl Clone for u64
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impl Clone for i16
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impl Clone for ip_mreq
fn clone(&self) -> ip_mreq
impl Clone for siginfo_t
fn clone(&self) -> siginfo_t
impl Clone for itimerval
fn clone(&self) -> itimerval
impl Clone for pthread_mutex_t
fn clone(&self) -> pthread_mutex_t
impl Clone for xucred
fn clone(&self) -> xucred
impl Clone for sockaddr_dl
fn clone(&self) -> sockaddr_dl
impl Clone for addrinfo
fn clone(&self) -> addrinfo
impl Clone for aiocb
fn clone(&self) -> aiocb
impl Clone for in_pktinfo
fn clone(&self) -> in_pktinfo
impl Clone for sockaddr_storage
fn clone(&self) -> sockaddr_storage
impl Clone for cmsghdr
fn clone(&self) -> cmsghdr
impl Clone for sockaddr
fn clone(&self) -> sockaddr
impl Clone for flock
fn clone(&self) -> flock
impl Clone for pthread_condattr_t
fn clone(&self) -> pthread_condattr_t
impl Clone for statvfs
fn clone(&self) -> statvfs
impl Clone for hostent
fn clone(&self) -> hostent
impl Clone for timezone
fn clone(&self) -> timezone
impl Clone for ifaddrs
fn clone(&self) -> ifaddrs
impl Clone for rlimit
fn clone(&self) -> rlimit
impl Clone for segment_command
fn clone(&self) -> segment_command
impl Clone for FILE
fn clone(&self) -> FILE
impl Clone for statfs
fn clone(&self) -> statfs
impl Clone for pthread_mutexattr_t
fn clone(&self) -> pthread_mutexattr_t
impl Clone for dqblk
fn clone(&self) -> dqblk
impl Clone for servent
fn clone(&self) -> servent
impl Clone for pthread_rwlockattr_t
fn clone(&self) -> pthread_rwlockattr_t
impl Clone for in6_addr
fn clone(&self) -> in6_addr
impl Clone for sigevent
fn clone(&self) -> sigevent
impl Clone for fsid_t
fn clone(&self) -> fsid_t
impl Clone for timeval
fn clone(&self) -> timeval
impl Clone for kevent
fn clone(&self) -> kevent
impl Clone for mach_header
fn clone(&self) -> mach_header
impl Clone for linger
fn clone(&self) -> linger
impl Clone for utimbuf
fn clone(&self) -> utimbuf
impl Clone for bpf_hdr
fn clone(&self) -> bpf_hdr
impl Clone for fd_set
fn clone(&self) -> fd_set
impl Clone for shmid_ds
fn clone(&self) -> shmid_ds
impl Clone for pthread_rwlock_t
fn clone(&self) -> pthread_rwlock_t
impl Clone for sembuf
fn clone(&self) -> sembuf
impl Clone for kevent64_s
fn clone(&self) -> kevent64_s
impl Clone for load_command
fn clone(&self) -> load_command
impl Clone for termios
fn clone(&self) -> termios
impl Clone for if_msghdr
fn clone(&self) -> if_msghdr
impl Clone for stat
fn clone(&self) -> stat
impl Clone for pthread_cond_t
fn clone(&self) -> pthread_cond_t
impl Clone for semid_ds
fn clone(&self) -> semid_ds
impl Clone for pthread_attr_t
fn clone(&self) -> pthread_attr_t
impl Clone for tm
fn clone(&self) -> tm
impl Clone for protoent
fn clone(&self) -> protoent
impl Clone for sockaddr_inarp
fn clone(&self) -> sockaddr_inarp
impl Clone for Dl_info
fn clone(&self) -> Dl_info
impl Clone for in_addr
fn clone(&self) -> in_addr
impl Clone for semun
fn clone(&self) -> semun
impl Clone for sockaddr_ctl
fn clone(&self) -> sockaddr_ctl
impl Clone for proc_bsdinfo
fn clone(&self) -> proc_bsdinfo
impl Clone for mach_timebase_info
fn clone(&self) -> mach_timebase_info
impl Clone for sockaddr_in6
fn clone(&self) -> sockaddr_in6
impl Clone for glob_t
fn clone(&self) -> glob_t
impl Clone for timespec
fn clone(&self) -> timespec
impl Clone for group
fn clone(&self) -> group
impl Clone for msghdr
fn clone(&self) -> msghdr
impl Clone for xsw_usage
fn clone(&self) -> xsw_usage
impl Clone for winsize
fn clone(&self) -> winsize
impl Clone for segment_command_64
fn clone(&self) -> segment_command_64
impl Clone for tms
fn clone(&self) -> tms
impl Clone for utsname
fn clone(&self) -> utsname
impl Clone for sockaddr_un
fn clone(&self) -> sockaddr_un
impl Clone for DIR
fn clone(&self) -> DIR
impl Clone for in6_pktinfo
fn clone(&self) -> in6_pktinfo
impl Clone for proc_taskinfo
fn clone(&self) -> proc_taskinfo
impl Clone for utmpx
fn clone(&self) -> utmpx
impl Clone for proc_taskallinfo
fn clone(&self) -> proc_taskallinfo
impl Clone for sigval
fn clone(&self) -> sigval
impl Clone for timeval32
fn clone(&self) -> timeval32
impl Clone for fpos_t
fn clone(&self) -> fpos_t
impl Clone for fstore_t
fn clone(&self) -> fstore_t
impl Clone for sf_hdtr
fn clone(&self) -> sf_hdtr
impl Clone for dirent
fn clone(&self) -> dirent
impl Clone for if_nameindex
fn clone(&self) -> if_nameindex
impl Clone for arphdr
fn clone(&self) -> arphdr
impl Clone for ipc_perm
fn clone(&self) -> ipc_perm
impl Clone for sockaddr_in
fn clone(&self) -> sockaddr_in
impl Clone for pollfd
fn clone(&self) -> pollfd
impl Clone for passwd
fn clone(&self) -> passwd
impl Clone for iovec
fn clone(&self) -> iovec
impl Clone for sigaction
fn clone(&self) -> sigaction
impl Clone for stack_t
fn clone(&self) -> stack_t
impl Clone for ipv6_mreq
fn clone(&self) -> ipv6_mreq
impl Clone for rusage
fn clone(&self) -> rusage
impl Clone for lconv
fn clone(&self) -> lconv
impl Clone for mach_header_64
fn clone(&self) -> mach_header_64
impl Clone for proc_threadinfo
fn clone(&self) -> proc_threadinfo
impl Clone for if_data
fn clone(&self) -> if_data
impl Clone for radvisory
fn clone(&self) -> radvisory
impl Clone for _Unwind_Reason_Code
fn clone(&self) -> _Unwind_Reason_Code
impl Clone for _Unwind_Action
fn clone(&self) -> _Unwind_Action
impl<'_, T, S> Clone for SymmetricDifference<'_, T, S>
ⓘImportant traits for SymmetricDifference<'a, T, S>fn clone(&self) -> SymmetricDifference<'_, T, S>
impl<'_, K> Clone for Iter<'_, K>
ⓘImportant traits for Iter<'a, K>fn clone(&self) -> Iter<'_, K>
impl<'_, K, V> Clone for Keys<'_, K, V>
ⓘImportant traits for Keys<'a, K, V>fn clone(&self) -> Keys<'_, K, V>
impl Clone for CollectionAllocErr
fn clone(&self) -> CollectionAllocErr
impl<T, S> Clone for HashSet<T, S> where
S: Clone,
T: Clone,
S: Clone,
T: Clone,
fn clone(&self) -> HashSet<T, S>
impl<'_, K, V> Clone for Iter<'_, K, V>
ⓘImportant traits for Iter<'a, K, V>fn clone(&self) -> Iter<'_, K, V>
impl<'_, T, S> Clone for Union<'_, T, S>
ⓘImportant traits for Union<'a, T, S>fn clone(&self) -> Union<'_, T, S>
impl<'_, K, V> Clone for Values<'_, K, V>
ⓘImportant traits for Values<'a, K, V>fn clone(&self) -> Values<'_, K, V>
impl<K, V, S> Clone for HashMap<K, V, S> where
K: Clone,
S: Clone,
V: Clone,
K: Clone,
S: Clone,
V: Clone,
fn clone(&self) -> HashMap<K, V, S>
impl<'_, T, S> Clone for Difference<'_, T, S>
ⓘImportant traits for Difference<'a, T, S>fn clone(&self) -> Difference<'_, T, S>
impl<'_, T, S> Clone for Intersection<'_, T, S>
ⓘImportant traits for Intersection<'a, T, S>fn clone(&self) -> Intersection<'_, T, S>
impl Clone for Frame
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impl Clone for TryDemangleError
fn clone(&self) -> TryDemangleError
Implementors
impl Clone for IntoStringError
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fn clone(&self) -> IntoStringError
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impl Clone for RecvError
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impl Clone for SeekFrom
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impl Clone for Metadata
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impl Clone for FromBytesWithNulError
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fn clone(&self) -> FromBytesWithNulError
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impl Clone for CString
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impl Clone for NulError
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impl Clone for SystemTimeError
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fn clone(&self) -> SystemTimeError
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impl Clone for std::os::unix::net::SocketAddr
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fn clone(&self) -> SocketAddr
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impl Clone for ExitCode
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impl Clone for AddrParseError
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fn clone(&self) -> AddrParseError
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impl Clone for SystemTime
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fn clone(&self) -> SystemTime
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impl Clone for std::net::SocketAddr
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fn clone(&self) -> SocketAddr
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impl Clone for Permissions
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fn clone(&self) -> Permissions
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impl Clone for AccessError
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fn clone(&self) -> AccessError
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impl Clone for Output
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impl Clone for ExitStatus
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fn clone(&self) -> ExitStatus
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impl Clone for RandomState
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fn clone(&self) -> RandomState
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impl Clone for TryRecvError
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fn clone(&self) -> TryRecvError
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impl Clone for ErrorKind
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impl Clone for Instant
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impl Clone for ThreadId
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impl Clone for OsString
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impl Clone for StripPrefixError
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fn clone(&self) -> StripPrefixError
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impl Clone for OpenOptions
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fn clone(&self) -> OpenOptions
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impl Clone for RecvTimeoutError
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fn clone(&self) -> RecvTimeoutError
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impl Clone for std::os::macos::raw::stat
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impl Clone for WaitTimeoutResult
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fn clone(&self) -> WaitTimeoutResult
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impl Clone for System
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impl Clone for IpAddr
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impl Clone for Thread
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impl Clone for DefaultHasher
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fn clone(&self) -> DefaultHasher
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impl Clone for Shutdown
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impl Clone for PathBuf
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impl Clone for VarError
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impl Clone for FileType
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impl Clone for ToUppercase
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ⓘImportant traits for ToUppercasefn clone(&self) -> ToUppercase
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impl Clone for ParseIntError
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fn clone(&self) -> ParseIntError
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impl Clone for FpCategory
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fn clone(&self) -> FpCategory
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impl Clone for std::char::EscapeUnicode
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ⓘImportant traits for EscapeUnicodefn clone(&self) -> EscapeUnicode
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impl Clone for CannotReallocInPlace
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fn clone(&self) -> CannotReallocInPlace
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impl Clone for std::cmp::Ordering
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impl Clone for UnicodeVersion
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fn clone(&self) -> UnicodeVersion
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impl Clone for std::char::EscapeDefault
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ⓘImportant traits for EscapeDefaultfn clone(&self) -> EscapeDefault
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impl Clone for ParseCharError
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fn clone(&self) -> ParseCharError
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impl Clone for ParseBoolError
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fn clone(&self) -> ParseBoolError
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impl Clone for Infallible
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fn clone(&self) -> Infallible
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impl Clone for TryFromSliceError
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fn clone(&self) -> TryFromSliceError
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impl Clone for TypeId
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impl Clone for std::ascii::EscapeDefault
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ⓘImportant traits for EscapeDefaultfn clone(&self) -> EscapeDefault
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impl Clone for Duration
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impl Clone for Error
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impl Clone for RangeFull
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impl Clone for TraitObject
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fn clone(&self) -> TraitObject
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impl Clone for SearchStep
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fn clone(&self) -> SearchStep
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impl Clone for RawWakerVTable
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fn clone(&self) -> RawWakerVTable
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impl Clone for SipHasher
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impl Clone for std::sync::atomic::Ordering
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impl Clone for PhantomPinned
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fn clone(&self) -> PhantomPinned
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impl Clone for NonZeroUsize
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fn clone(&self) -> NonZeroUsize
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impl Clone for AllocErr
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impl Clone for ParseFloatError
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fn clone(&self) -> ParseFloatError
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impl Clone for LayoutErr
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impl Clone for std::char::EscapeDebug
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ⓘImportant traits for EscapeDebugfn clone(&self) -> EscapeDebug
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impl Clone for ToLowercase
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ⓘImportant traits for ToLowercasefn clone(&self) -> ToLowercase
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impl Clone for NonZeroIsize
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fn clone(&self) -> NonZeroIsize
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impl Clone for CharTryFromError
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fn clone(&self) -> CharTryFromError
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impl Clone for Layout
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impl Clone for Waker
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impl Clone for NoneError
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impl Clone for TryFromIntError
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fn clone(&self) -> TryFromIntError
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impl Clone for IntErrorKind
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fn clone(&self) -> IntErrorKind
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impl Clone for TryReserveError
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fn clone(&self) -> TryReserveError
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impl Clone for Global
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impl Clone for Ipv6MulticastScope
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fn clone(&self) -> Ipv6MulticastScope
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impl Clone for CpuidResult
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fn clone(&self) -> CpuidResult
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impl Clone for __m128
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impl Clone for __m128d
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impl Clone for __m128i
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impl Clone for __m256
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impl Clone for __m256d
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impl Clone for __m256i
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impl Clone for __m512
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impl Clone for __m512d
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impl Clone for __m512i
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impl Clone for __m64
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impl Clone for DecodeUtf16Error
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fn clone(&self) -> DecodeUtf16Error
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impl Clone for Ipv4Addr
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impl Clone for Ipv6Addr
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impl Clone for SocketAddrV4
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fn clone(&self) -> SocketAddrV4
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impl Clone for SocketAddrV6
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fn clone(&self) -> SocketAddrV6
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impl Clone for NonZeroI128
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fn clone(&self) -> NonZeroI128
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impl Clone for NonZeroI16
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fn clone(&self) -> NonZeroI16
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impl Clone for NonZeroI32
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fn clone(&self) -> NonZeroI32
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impl Clone for NonZeroI64
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fn clone(&self) -> NonZeroI64
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impl Clone for NonZeroI8
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impl Clone for NonZeroU128
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fn clone(&self) -> NonZeroU128
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impl Clone for NonZeroU16
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fn clone(&self) -> NonZeroU16
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impl Clone for NonZeroU32
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fn clone(&self) -> NonZeroU32
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impl Clone for NonZeroU64
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fn clone(&self) -> NonZeroU64
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impl Clone for NonZeroU8
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impl Clone for Box<CStr>
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impl Clone for Box<OsStr>
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impl Clone for Box<Path>
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impl Clone for Box<str>
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impl Clone for String
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impl Clone for Utf8Error
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impl<'_, A> Clone for std::option::Iter<'_, A>
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impl<'_, B> Clone for Cow<'_, B> where
B: ToOwned + ?Sized,
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B: ToOwned + ?Sized,
impl<'_, K> Clone for std::collections::hash_set::Iter<'_, K>
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impl<'_, K, V> Clone for std::collections::hash_map::Values<'_, K, V>
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impl<'_, K, V> Clone for std::collections::hash_map::Keys<'_, K, V>
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impl<'_, K, V> Clone for std::collections::hash_map::Iter<'_, K, V>
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impl<'_, K, V> Clone for std::collections::btree_map::Range<'_, K, V>
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impl<'_, K, V> Clone for std::collections::btree_map::Values<'_, K, V>
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impl<'_, K, V> Clone for std::collections::btree_map::Keys<'_, K, V>
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impl<'_, K, V> Clone for std::collections::btree_map::Iter<'_, K, V>
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impl<'_, T> Clone for Chunks<'_, T>
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impl<'_, T> Clone for std::slice::Iter<'_, T>
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impl<'_, T> Clone for ChunksExact<'_, T>
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ⓘImportant traits for ChunksExact<'a, T>fn clone(&self) -> ChunksExact<'_, T>
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impl<'_, T> Clone for Windows<'_, T>
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impl<'_, T> Clone for RChunks<'_, T>
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impl<'_, T> Clone for std::result::Iter<'_, T>
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impl<'_, T> Clone for std::collections::btree_set::Difference<'_, T>
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ⓘImportant traits for Difference<'a, T>fn clone(&self) -> Difference<'_, T>
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impl<'_, T> Clone for std::collections::btree_set::Iter<'_, T>
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impl<'_, T> Clone for std::collections::vec_deque::Iter<'_, T>
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impl<'_, T> Clone for std::collections::linked_list::Iter<'_, T>
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impl<'_, T> Clone for std::collections::btree_set::Intersection<'_, T>
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ⓘImportant traits for Intersection<'a, T>fn clone(&self) -> Intersection<'_, T>
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impl<'_, T> Clone for std::collections::binary_heap::Iter<'_, T>
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impl<'_, T> Clone for std::collections::btree_set::Union<'_, T>
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impl<'_, T> Clone for std::collections::btree_set::Range<'_, T>
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impl<'_, T> Clone for std::collections::btree_set::SymmetricDifference<'_, T>
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ⓘImportant traits for SymmetricDifference<'a, T>fn clone(&self) -> SymmetricDifference<'_, T>
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impl<'_, T, P> Clone for std::slice::Split<'_, T, P> where
P: Clone + FnMut(&T) -> bool,
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P: Clone + FnMut(&T) -> bool,
impl<'_, T, S> Clone for std::collections::hash_set::Union<'_, T, S>
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impl<'_, T, S> Clone for std::collections::hash_set::Intersection<'_, T, S>
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ⓘImportant traits for Intersection<'a, T, S>fn clone(&self) -> Intersection<'_, T, S>
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impl<'_, T, S> Clone for std::collections::hash_set::Difference<'_, T, S>
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ⓘImportant traits for Difference<'a, T, S>fn clone(&self) -> Difference<'_, T, S>
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impl<'_, T, S> Clone for std::collections::hash_set::SymmetricDifference<'_, T, S>
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ⓘImportant traits for SymmetricDifference<'a, T, S>fn clone(&self) -> SymmetricDifference<'_, T, S>
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impl<'a> Clone for Components<'a>
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ⓘImportant traits for Components<'a>fn clone(&self) -> Components<'a>
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impl<'a> Clone for ErrorIter<'a>
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impl<'a> Clone for std::path::Iter<'a>
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impl<'a> Clone for Ancestors<'a>
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impl<'a> Clone for PrefixComponent<'a>
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fn clone(&self) -> PrefixComponent<'a>
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impl<'a> Clone for Component<'a>
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impl<'a> Clone for Prefix<'a>
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impl<'a> Clone for SplitWhitespace<'a>
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ⓘImportant traits for SplitWhitespace<'a>fn clone(&self) -> SplitWhitespace<'a>
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impl<'a> Clone for Bytes<'a>
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impl<'a> Clone for SplitAsciiWhitespace<'a>
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ⓘImportant traits for SplitAsciiWhitespace<'a>fn clone(&self) -> SplitAsciiWhitespace<'a>
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impl<'a> Clone for std::str::EscapeUnicode<'a>
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ⓘImportant traits for EscapeUnicode<'a>fn clone(&self) -> EscapeUnicode<'a>
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impl<'a> Clone for CharSearcher<'a>
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fn clone(&self) -> CharSearcher<'a>
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impl<'a> Clone for Lines<'a>
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impl<'a> Clone for LinesAny<'a>
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impl<'a> Clone for std::str::EscapeDefault<'a>
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ⓘImportant traits for EscapeDefault<'a>fn clone(&self) -> EscapeDefault<'a>
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impl<'a> Clone for CharIndices<'a>
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ⓘImportant traits for CharIndices<'a>fn clone(&self) -> CharIndices<'a>
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impl<'a> Clone for Chars<'a>
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impl<'a> Clone for Arguments<'a>
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impl<'a> Clone for std::str::EscapeDebug<'a>
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ⓘImportant traits for EscapeDebug<'a>fn clone(&self) -> EscapeDebug<'a>
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impl<'a> Clone for EncodeUtf16<'a>
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ⓘImportant traits for EncodeUtf16<'a>fn clone(&self) -> EncodeUtf16<'a>
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impl<'a, 'b> Clone for CharSliceSearcher<'a, 'b>
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fn clone(&self) -> CharSliceSearcher<'a, 'b>
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impl<'a, 'b> Clone for StrSearcher<'a, 'b>
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fn clone(&self) -> StrSearcher<'a, 'b>
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impl<'a, F> Clone for CharPredicateSearcher<'a, F> where
F: Clone + FnMut(char) -> bool,
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F: Clone + FnMut(char) -> bool,
fn clone(&self) -> CharPredicateSearcher<'a, F>
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impl<'a, P> Clone for MatchIndices<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
ⓘImportant traits for MatchIndices<'a, P>fn clone(&self) -> MatchIndices<'a, P>
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impl<'a, P> Clone for Matches<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
impl<'a, P> Clone for RMatchIndices<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
ⓘImportant traits for RMatchIndices<'a, P>fn clone(&self) -> RMatchIndices<'a, P>
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impl<'a, P> Clone for RMatches<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
impl<'a, P> Clone for std::str::RSplit<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
impl<'a, P> Clone for RSplitN<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
impl<'a, P> Clone for RSplitTerminator<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
ⓘImportant traits for RSplitTerminator<'a, P>fn clone(&self) -> RSplitTerminator<'a, P>
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impl<'a, P> Clone for std::str::Split<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
impl<'a, P> Clone for SplitN<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
impl<'a, P> Clone for SplitTerminator<'a, P> where
P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
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P: Pattern<'a>,
<P as Pattern<'a>>::Searcher: Clone,
ⓘImportant traits for SplitTerminator<'a, P>fn clone(&self) -> SplitTerminator<'a, P>
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impl<'a, T> Clone for RChunksExact<'a, T>
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ⓘImportant traits for RChunksExact<'a, T>fn clone(&self) -> RChunksExact<'a, T>
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impl<'a, T, P> Clone for std::slice::RSplit<'a, T, P> where
P: Clone + FnMut(&T) -> bool,
T: 'a + Clone,
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P: Clone + FnMut(&T) -> bool,
T: 'a + Clone,
impl<'f> Clone for VaListImpl<'f>
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fn clone(&self) -> VaListImpl<'f>
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impl<A> Clone for Repeat<A> where
A: Clone,
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A: Clone,
impl<A> Clone for std::option::IntoIter<A> where
A: Clone,
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A: Clone,
impl<A, B> Clone for Chain<A, B> where
A: Clone,
B: Clone,
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A: Clone,
B: Clone,
impl<A, B> Clone for Zip<A, B> where
A: Clone,
B: Clone,
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A: Clone,
B: Clone,
impl<F> Clone for FromFn<F> where
F: Clone,
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F: Clone,
impl<F> Clone for OnceWith<F> where
F: Clone,
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F: Clone,
impl<F> Clone for RepeatWith<F> where
F: Clone,
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F: Clone,
ⓘImportant traits for RepeatWith<F>fn clone(&self) -> RepeatWith<F>
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impl<H> Clone for BuildHasherDefault<H>
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fn clone(&self) -> BuildHasherDefault<H>
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impl<I> Clone for DecodeUtf16<I> where
I: Clone + Iterator<Item = u16>,
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I: Clone + Iterator<Item = u16>,
ⓘImportant traits for DecodeUtf16<I>fn clone(&self) -> DecodeUtf16<I>
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impl<I> Clone for Cloned<I> where
I: Clone,
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I: Clone,
impl<I> Clone for Copied<I> where
I: Clone,
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I: Clone,
impl<I> Clone for Cycle<I> where
I: Clone,
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I: Clone,
impl<I> Clone for Enumerate<I> where
I: Clone,
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I: Clone,
impl<I> Clone for Fuse<I> where
I: Clone,
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I: Clone,
impl<I> Clone for Peekable<I> where
I: Clone + Iterator,
<I as Iterator>::Item: Clone,
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I: Clone + Iterator,
<I as Iterator>::Item: Clone,
impl<I> Clone for Skip<I> where
I: Clone,
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I: Clone,
impl<I> Clone for StepBy<I> where
I: Clone,
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I: Clone,
impl<I> Clone for Take<I> where
I: Clone,
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I: Clone,
impl<I, F> Clone for FilterMap<I, F> where
F: Clone,
I: Clone,
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F: Clone,
I: Clone,
impl<I, F> Clone for Inspect<I, F> where
F: Clone,
I: Clone,
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F: Clone,
I: Clone,
impl<I, F> Clone for Map<I, F> where
F: Clone,
I: Clone,
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F: Clone,
I: Clone,
impl<I, P> Clone for Filter<I, P> where
I: Clone,
P: Clone,
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I: Clone,
P: Clone,
impl<I, P> Clone for SkipWhile<I, P> where
I: Clone,
P: Clone,
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I: Clone,
P: Clone,
impl<I, P> Clone for TakeWhile<I, P> where
I: Clone,
P: Clone,
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I: Clone,
P: Clone,
impl<I, St, F> Clone for Scan<I, St, F> where
F: Clone,
I: Clone,
St: Clone,
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F: Clone,
I: Clone,
St: Clone,
impl<I, U> Clone for Flatten<I> where
I: Clone + Iterator,
U: Clone + Iterator,
<I as Iterator>::Item: IntoIterator,
<<I as Iterator>::Item as IntoIterator>::IntoIter == U,
<<I as Iterator>::Item as IntoIterator>::Item == <U as Iterator>::Item,
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I: Clone + Iterator,
U: Clone + Iterator,
<I as Iterator>::Item: IntoIterator,
<<I as Iterator>::Item as IntoIterator>::IntoIter == U,
<<I as Iterator>::Item as IntoIterator>::Item == <U as Iterator>::Item,
impl<I, U, F> Clone for FlatMap<I, U, F> where
F: Clone,
I: Clone,
U: Clone + IntoIterator,
<U as IntoIterator>::IntoIter: Clone,
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F: Clone,
I: Clone,
U: Clone + IntoIterator,
<U as IntoIterator>::IntoIter: Clone,
impl<Idx> Clone for std::ops::Range<Idx> where
Idx: Clone,
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Idx: Clone,
impl<Idx> Clone for RangeFrom<Idx> where
Idx: Clone,
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Idx: Clone,
impl<Idx> Clone for RangeInclusive<Idx> where
Idx: Clone,
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Idx: Clone,
ⓘImportant traits for RangeInclusive<A>fn clone(&self) -> RangeInclusive<Idx>
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impl<Idx> Clone for RangeTo<Idx> where
Idx: Clone,
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Idx: Clone,
impl<Idx> Clone for RangeToInclusive<Idx> where
Idx: Clone,
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Idx: Clone,
fn clone(&self) -> RangeToInclusive<Idx>
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impl<K, V> Clone for BTreeMap<K, V> where
K: Clone,
V: Clone,
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K: Clone,
V: Clone,
impl<K, V, S> Clone for std::collections::hash_map::HashMap<K, V, S> where
K: Clone,
S: Clone,
V: Clone,
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K: Clone,
S: Clone,
V: Clone,
impl<P> Clone for Pin<P> where
P: Clone,
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P: Clone,
impl<T> Clone for SyncSender<T>
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fn clone(&self) -> SyncSender<T>
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impl<T> Clone for Sender<T>
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impl<T> Clone for Empty<T>
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impl<T> Clone for Discriminant<T>
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fn clone(&self) -> Discriminant<T>
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impl<T> Clone for Bound<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Option<T> where
T: Clone,
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T: Clone,
impl<T> Clone for TrySendError<T> where
T: Clone,
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T: Clone,
fn clone(&self) -> TrySendError<T>
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impl<T> Clone for Poll<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Cell<T> where
T: Copy,
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T: Copy,
impl<T> Clone for RefCell<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Reverse<T> where
T: Clone,
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T: Clone,
impl<T> Clone for BinaryHeap<T> where
T: Clone,
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T: Clone,
fn clone(&self) -> BinaryHeap<T>
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fn clone_from(&mut self, source: &BinaryHeap<T>)
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impl<T> Clone for std::collections::binary_heap::IntoIter<T> where
T: Clone,
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T: Clone,
impl<T> Clone for std::collections::linked_list::IntoIter<T> where
T: Clone,
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T: Clone,
impl<T> Clone for BTreeSet<T> where
T: Clone,
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T: Clone,
impl<T> Clone for LinkedList<T> where
T: Clone,
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T: Clone,
fn clone(&self) -> LinkedList<T>
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impl<T> Clone for std::collections::vec_deque::IntoIter<T> where
T: Clone,
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T: Clone,
impl<T> Clone for VecDeque<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Cursor<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Once<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Rev<T> where
T: Clone,
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T: Clone,
impl<T> Clone for PhantomData<T> where
T: ?Sized,
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T: ?Sized,
fn clone(&self) -> PhantomData<T>
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impl<T> Clone for ManuallyDrop<T> where
T: Clone + ?Sized,
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T: Clone + ?Sized,
fn clone(&self) -> ManuallyDrop<T>
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impl<T> Clone for Wrapping<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Box<[T]> where
T: Clone,
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T: Clone,
impl<T> Clone for Box<T> where
T: Clone,
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T: Clone,
ⓘImportant traits for Box<W>fn clone(&self) -> Box<T>
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Returns a new box with a clone()
of this box's contents.
Examples
let x = Box::new(5); let y = x.clone(); // The value is the same assert_eq!(x, y); // But they are unique objects assert_ne!(&*x as *const i32, &*y as *const i32);
fn clone_from(&mut self, source: &Box<T>)
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Copies source
's contents into self
without creating a new allocation.
Examples
let x = Box::new(5); let mut y = Box::new(10); let yp: *const i32 = &*y; y.clone_from(&x); // The value is the same assert_eq!(x, y); // And no allocation occurred assert_eq!(yp, &*y);
impl<T> Clone for Vec<T> where
T: Clone,
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T: Clone,
impl<T> Clone for NonNull<T> where
T: ?Sized,
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T: ?Sized,
impl<T> Clone for Rc<T> where
T: ?Sized,
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T: ?Sized,
fn clone(&self) -> Rc<T>
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Makes a clone of the Rc
pointer.
This creates another pointer to the same inner value, increasing the strong reference count.
Examples
use std::rc::Rc; let five = Rc::new(5); let _ = Rc::clone(&five);
impl<T> Clone for std::rc::Weak<T> where
T: ?Sized,
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T: ?Sized,
fn clone(&self) -> Weak<T>
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Makes a clone of the Weak
pointer that points to the same value.
Examples
use std::rc::{Rc, Weak}; let weak_five = Rc::downgrade(&Rc::new(5)); let _ = Weak::clone(&weak_five);
impl<T> Clone for std::result::IntoIter<T> where
T: Clone,
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T: Clone,
impl<T> Clone for SendError<T> where
T: Clone,
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T: Clone,
impl<T> Clone for Arc<T> where
T: ?Sized,
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T: ?Sized,
fn clone(&self) -> Arc<T>
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Makes a clone of the Arc
pointer.
This creates another pointer to the same inner value, increasing the strong reference count.
Examples
use std::sync::Arc; let five = Arc::new(5); let _ = Arc::clone(&five);
impl<T> Clone for std::sync::Weak<T> where
T: ?Sized,
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T: ?Sized,
fn clone(&self) -> Weak<T>
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Makes a clone of the Weak
pointer that points to the same value.
Examples
use std::sync::{Arc, Weak}; let weak_five = Arc::downgrade(&Arc::new(5)); let _ = Weak::clone(&weak_five);
impl<T> Clone for std::vec::IntoIter<T> where
T: Clone,
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T: Clone,
impl<T> Clone for MaybeUninit<T> where
T: Copy,
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T: Copy,
fn clone(&self) -> MaybeUninit<T>
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impl<T, E> Clone for Result<T, E> where
E: Clone,
T: Clone,
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E: Clone,
T: Clone,
impl<T, F> Clone for Successors<T, F> where
F: Clone,
T: Clone,
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F: Clone,
T: Clone,
ⓘImportant traits for Successors<T, F>fn clone(&self) -> Successors<T, F>
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impl<T, S> Clone for std::collections::hash_set::HashSet<T, S> where
S: Clone,
T: Clone,
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S: Clone,
T: Clone,
impl<Y, R> Clone for GeneratorState<Y, R> where
R: Clone,
Y: Clone,
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R: Clone,
Y: Clone,