Trait std::fmt::Debug

1.0.0 · source ·
pub trait Debug {
    // Required method
    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>;
}
Expand description

? formatting.

Debug should format the output in a programmer-facing, debugging context.

Generally speaking, you should just derive a Debug implementation.

When used with the alternate format specifier #?, the output is pretty-printed.

For more information on formatters, see the module-level documentation.

This trait can be used with #[derive] if all fields implement Debug. When derived for structs, it will use the name of the struct, then {, then a comma-separated list of each field’s name and Debug value, then }. For enums, it will use the name of the variant and, if applicable, (, then the Debug values of the fields, then ).

Stability

Derived Debug formats are not stable, and so may change with future Rust versions. Additionally, Debug implementations of types provided by the standard library (std, core, alloc, etc.) are not stable, and may also change with future Rust versions.

Examples

Deriving an implementation:

#[derive(Debug)]
struct Point {
    x: i32,
    y: i32,
}

let origin = Point { x: 0, y: 0 };

assert_eq!(format!("The origin is: {origin:?}"), "The origin is: Point { x: 0, y: 0 }");
Run

Manually implementing:

use std::fmt;

struct Point {
    x: i32,
    y: i32,
}

impl fmt::Debug for Point {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_struct("Point")
         .field("x", &self.x)
         .field("y", &self.y)
         .finish()
    }
}

let origin = Point { x: 0, y: 0 };

assert_eq!(format!("The origin is: {origin:?}"), "The origin is: Point { x: 0, y: 0 }");
Run

There are a number of helper methods on the Formatter struct to help you with manual implementations, such as debug_struct.

Types that do not wish to use the standard suite of debug representations provided by the Formatter trait (debug_struct, debug_tuple, debug_list, debug_set, debug_map) can do something totally custom by manually writing an arbitrary representation to the Formatter.

impl fmt::Debug for Point {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "Point [{} {}]", self.x, self.y)
    }
}
Run

Debug implementations using either derive or the debug builder API on Formatter support pretty-printing using the alternate flag: {:#?}.

Pretty-printing with #?:

#[derive(Debug)]
struct Point {
    x: i32,
    y: i32,
}

let origin = Point { x: 0, y: 0 };

assert_eq!(format!("The origin is: {origin:#?}"),
"The origin is: Point {
    x: 0,
    y: 0,
}");
Run

Required Methods§

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

Examples
use std::fmt;

struct Position {
    longitude: f32,
    latitude: f32,
}

impl fmt::Debug for Position {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.debug_tuple("")
         .field(&self.longitude)
         .field(&self.latitude)
         .finish()
    }
}

let position = Position { longitude: 1.987, latitude: 2.983 };
assert_eq!(format!("{position:?}"), "(1.987, 2.983)");

assert_eq!(format!("{position:#?}"), "(
    1.987,
    2.983,
)");
Run

Implementors§

source§

impl Debug for AsciiChar

1.65.0 · source§

impl Debug for BacktraceStatus

source§

impl Debug for std::cmp::Ordering

source§

impl Debug for TryReserveErrorKind

1.34.0 · source§

impl Debug for Infallible

source§

impl Debug for VarError

1.16.0 · source§

impl Debug for c_void

source§

impl Debug for ErrorKind

source§

impl Debug for SeekFrom

1.7.0 · source§

impl Debug for IpAddr

source§

impl Debug for Ipv6MulticastScope

source§

impl Debug for Shutdown

source§

impl Debug for std::net::SocketAddr

source§

impl Debug for FpCategory

1.55.0 · source§

impl Debug for IntErrorKind

source§

impl Debug for AncillaryError

Available on (Android or Linux) and Unix only.
source§

impl Debug for BacktraceStyle

source§

impl Debug for Which

source§

impl Debug for SearchStep

source§

impl Debug for std::sync::atomic::Ordering

1.12.0 · source§

impl Debug for RecvTimeoutError

source§

impl Debug for TryRecvError

1.28.0 · source§

impl Debug for std::fmt::Alignment

source§

impl Debug for bool

source§

impl Debug for char

source§

impl Debug for f32

source§

impl Debug for f64

source§

impl Debug for i8

source§

impl Debug for i16

source§

impl Debug for i32

source§

impl Debug for i64

source§

impl Debug for i128

source§

impl Debug for isize

source§

impl Debug for !

source§

impl Debug for str

source§

impl Debug for u8

source§

impl Debug for u16

source§

impl Debug for u32

source§

impl Debug for u64

source§

impl Debug for u128

source§

impl Debug for ()

source§

impl Debug for usize

1.27.0 · source§

impl Debug for CpuidResult

1.27.0 · source§

impl Debug for __m128

source§

impl Debug for __m128bh

1.27.0 · source§

impl Debug for __m128d

1.27.0 · source§

impl Debug for __m128i

1.27.0 · source§

impl Debug for __m256

source§

impl Debug for __m256bh

1.27.0 · source§

impl Debug for __m256d

1.27.0 · source§

impl Debug for __m256i

1.74.1 · source§

impl Debug for __m512

source§

impl Debug for __m512bh

1.74.1 · source§

impl Debug for __m512d

1.74.1 · source§

impl Debug for __m512i

source§

impl Debug for TimSortRun

source§

impl Debug for AllocError

source§

impl Debug for Global

1.28.0 · source§

impl Debug for Layout

1.50.0 · source§

impl Debug for LayoutError

1.28.0 · source§

impl Debug for System

source§

impl Debug for TypeId

1.34.0 · source§

impl Debug for TryFromSliceError

1.16.0 · source§

impl Debug for std::ascii::EscapeDefault

1.65.0 · source§

impl Debug for Backtrace

source§

impl Debug for BacktraceFrame

1.13.0 · source§

impl Debug for BorrowError

1.13.0 · source§

impl Debug for BorrowMutError

1.34.0 · source§

impl Debug for CharTryFromError

1.9.0 · source§

impl Debug for DecodeUtf16Error

1.20.0 · source§

impl Debug for std::char::EscapeDebug

source§

impl Debug for std::char::EscapeDefault

source§

impl Debug for std::char::EscapeUnicode

1.20.0 · source§

impl Debug for ParseCharError

source§

impl Debug for ToLowercase

source§

impl Debug for ToUppercase

1.59.0 · source§

impl Debug for TryFromCharError

1.13.0 · source§

impl Debug for DefaultHasher

1.16.0 · source§

impl Debug for RandomState

1.57.0 · source§

impl Debug for TryReserveError

1.16.0 · source§

impl Debug for Args

1.16.0 · source§

impl Debug for ArgsOs

source§

impl Debug for JoinPathsError

1.16.0 · source§

impl Debug for SplitPaths<'_>

1.16.0 · source§

impl Debug for Vars

1.16.0 · source§

impl Debug for VarsOs

1.3.0 · source§

impl Debug for CStr

source§

impl Debug for CString

1.69.0 · source§

impl Debug for FromBytesUntilNulError

1.64.0 · source§

impl Debug for FromBytesWithNulError

1.64.0 · source§

impl Debug for FromVecWithNulError

1.64.0 · source§

impl Debug for IntoStringError

1.64.0 · source§

impl Debug for NulError

source§

impl Debug for OsStr

source§

impl Debug for OsString

1.6.0 · source§

impl Debug for DirBuilder

1.13.0 · source§

impl Debug for DirEntry

source§

impl Debug for File

source§

impl Debug for FileTimes

1.1.0 · source§

impl Debug for FileType

1.16.0 · source§

impl Debug for Metadata

source§

impl Debug for OpenOptions

source§

impl Debug for Permissions

source§

impl Debug for ReadDir

source§

impl Debug for SipHasher

source§

impl Debug for BorrowedBuf<'_>

source§

impl Debug for std::io::Empty

source§

impl Debug for std::io::Error

1.16.0 · source§

impl Debug for std::io::Repeat

source§

impl Debug for Sink

1.16.0 · source§

impl Debug for Stderr

1.16.0 · source§

impl Debug for StderrLock<'_>

1.16.0 · source§

impl Debug for Stdin

1.16.0 · source§

impl Debug for StdinLock<'_>

1.16.0 · source§

impl Debug for Stdout

1.16.0 · source§

impl Debug for StdoutLock<'_>

1.56.0 · source§

impl Debug for WriterPanicked

1.33.0 · source§

impl Debug for PhantomPinned

source§

impl Debug for Assume

source§

impl Debug for AddrParseError

source§

impl Debug for IntoIncoming

source§

impl Debug for Ipv4Addr

source§

impl Debug for Ipv6Addr

source§

impl Debug for SocketAddrV4

source§

impl Debug for SocketAddrV6

source§

impl Debug for TcpListener

source§

impl Debug for TcpStream

source§

impl Debug for UdpSocket

1.34.0 · source§

impl Debug for NonZeroI8

1.34.0 · source§

impl Debug for NonZeroI16

1.34.0 · source§

impl Debug for NonZeroI32

1.34.0 · source§

impl Debug for NonZeroI64

1.34.0 · source§

impl Debug for NonZeroI128

1.34.0 · source§

impl Debug for NonZeroIsize

1.28.0 · source§

impl Debug for NonZeroU8

1.28.0 · source§

impl Debug for NonZeroU16

1.28.0 · source§

impl Debug for NonZeroU32

1.28.0 · source§

impl Debug for NonZeroU64

1.28.0 · source§

impl Debug for NonZeroU128

1.28.0 · source§

impl Debug for NonZeroUsize

source§

impl Debug for ParseFloatError

source§

impl Debug for ParseIntError

1.34.0 · source§

impl Debug for TryFromIntError

source§

impl Debug for RangeFull

1.63.0 · source§

impl Debug for BorrowedFd<'_>

1.63.0 · source§

impl Debug for OwnedFd

source§

impl Debug for PidFd

Available on Linux only.
1.10.0 · source§

impl Debug for std::os::unix::net::SocketAddr

Available on Unix only.
1.10.0 · source§

impl Debug for UnixDatagram

Available on Unix only.
1.10.0 · source§

impl Debug for UnixListener

Available on Unix only.
1.10.0 · source§

impl Debug for UnixStream

Available on Unix only.
source§

impl Debug for UCred

Available on Unix only.
1.63.0 · source§

impl Debug for BorrowedHandle<'_>

Available on Windows only.
1.63.0 · source§

impl Debug for BorrowedSocket<'_>

Available on Windows only.
1.63.0 · source§

impl Debug for HandleOrInvalid

Available on Windows only.
1.63.0 · source§

impl Debug for HandleOrNull

Available on Windows only.
1.63.0 · source§

impl Debug for InvalidHandleError

Available on Windows only.
1.63.0 · source§

impl Debug for NullHandleError

Available on Windows only.
1.63.0 · source§

impl Debug for OwnedHandle

Available on Windows only.
1.63.0 · source§

impl Debug for OwnedSocket

Available on Windows only.
1.13.0 · source§

impl Debug for Components<'_>

source§

impl Debug for Display<'_>

1.13.0 · source§

impl Debug for std::path::Iter<'_>

source§

impl Debug for Path

source§

impl Debug for PathBuf

1.7.0 · source§

impl Debug for StripPrefixError

1.16.0 · source§

impl Debug for Child

1.16.0 · source§

impl Debug for ChildStderr

1.16.0 · source§

impl Debug for ChildStdin

1.16.0 · source§

impl Debug for ChildStdout

source§

impl Debug for Command

1.61.0 · source§

impl Debug for ExitCode

source§

impl Debug for ExitStatus

source§

impl Debug for ExitStatusError

1.7.0 · source§

impl Debug for Output

1.16.0 · source§

impl Debug for Stdio

source§

impl Debug for std::ptr::Alignment

1.38.0 · source§

impl Debug for Chars<'_>

1.17.0 · source§

impl Debug for EncodeUtf16<'_>

source§

impl Debug for ParseBoolError

source§

impl Debug for Utf8Chunks<'_>

source§

impl Debug for Utf8Error

1.17.0 · source§

impl Debug for std::string::Drain<'_>

source§

impl Debug for FromUtf8Error

source§

impl Debug for FromUtf16Error

source§

impl Debug for String

1.3.0 · source§

impl Debug for AtomicBool

1.34.0 · source§

impl Debug for AtomicI8

1.34.0 · source§

impl Debug for AtomicI16

1.34.0 · source§

impl Debug for AtomicI32

1.34.0 · source§

impl Debug for AtomicI64

1.3.0 · source§

impl Debug for AtomicIsize

1.34.0 · source§

impl Debug for AtomicU8

1.34.0 · source§

impl Debug for AtomicU16

1.34.0 · source§

impl Debug for AtomicU32

1.34.0 · source§

impl Debug for AtomicU64

1.3.0 · source§

impl Debug for AtomicUsize

source§

impl Debug for RecvError

1.16.0 · source§

impl Debug for Barrier

1.16.0 · source§

impl Debug for BarrierWaitResult

1.16.0 · source§

impl Debug for Condvar

1.16.0 · source§

impl Debug for std::sync::Once

1.16.0 · source§

impl Debug for OnceState

1.5.0 · source§

impl Debug for WaitTimeoutResult

1.36.0 · source§

impl Debug for Context<'_>

1.36.0 · source§

impl Debug for RawWaker

1.36.0 · source§

impl Debug for RawWakerVTable

1.36.0 · source§

impl Debug for Waker

1.26.0 · source§

impl Debug for AccessError

source§

impl Debug for Builder

1.63.0 · source§

impl Debug for Scope<'_, '_>

source§

impl Debug for Thread

1.19.0 · source§

impl Debug for ThreadId

1.27.0 · source§

impl Debug for Duration

1.8.0 · source§

impl Debug for Instant

1.8.0 · source§

impl Debug for SystemTime

1.8.0 · source§

impl Debug for SystemTimeError

1.66.0 · source§

impl Debug for TryFromFloatSecsError

source§

impl Debug for Arguments<'_>

source§

impl Debug for std::fmt::Error

source§

impl Debug for dyn Any

source§

impl Debug for dyn Any + Send

1.28.0 · source§

impl Debug for dyn Any + Sync + Send

source§

impl<'a> Debug for Component<'a>

source§

impl<'a> Debug for Prefix<'a>

source§

impl<'a> Debug for Source<'a>

source§

impl<'a> Debug for Request<'a>

source§

impl<'a> Debug for BorrowedCursor<'a>

1.36.0 · source§

impl<'a> Debug for IoSlice<'a>

1.36.0 · source§

impl<'a> Debug for IoSliceMut<'a>

source§

impl<'a> Debug for std::net::Incoming<'a>

1.10.0 · source§

impl<'a> Debug for std::os::unix::net::Incoming<'a>

Available on Unix only.
source§

impl<'a> Debug for SocketAncillary<'a>

Available on (Android or Linux) and Unix only.
1.10.0 · source§

impl<'a> Debug for Location<'a>

1.10.0 · source§

impl<'a> Debug for PanicInfo<'a>

1.28.0 · source§

impl<'a> Debug for Ancestors<'a>

source§

impl<'a> Debug for PrefixComponent<'a>

1.57.0 · source§

impl<'a> Debug for CommandArgs<'a>

1.57.0 · source§

impl<'a> Debug for CommandEnvs<'a>

1.60.0 · source§

impl<'a> Debug for EscapeAscii<'a>

source§

impl<'a> Debug for CharSearcher<'a>

source§

impl<'a> Debug for std::str::Bytes<'a>

source§

impl<'a> Debug for CharIndices<'a>

1.34.0 · source§

impl<'a> Debug for std::str::EscapeDebug<'a>

1.34.0 · source§

impl<'a> Debug for std::str::EscapeDefault<'a>

1.34.0 · source§

impl<'a> Debug for std::str::EscapeUnicode<'a>

source§

impl<'a> Debug for std::str::Lines<'a>

source§

impl<'a> Debug for LinesAny<'a>

1.34.0 · source§

impl<'a> Debug for SplitAsciiWhitespace<'a>

1.1.0 · source§

impl<'a> Debug for SplitWhitespace<'a>

source§

impl<'a> Debug for Utf8Chunk<'a>

source§

impl<'a, 'b> Debug for CharSliceSearcher<'a, 'b>

source§

impl<'a, 'b> Debug for StrSearcher<'a, 'b>

source§

impl<'a, 'b, const N: usize> Debug for CharArrayRefSearcher<'a, 'b, N>

source§

impl<'a, 'f> Debug for VaList<'a, 'f>where 'f: 'a,

source§

impl<'a, A> Debug for std::option::Iter<'a, A>where A: Debug + 'a,

source§

impl<'a, A> Debug for std::option::IterMut<'a, A>where A: Debug + 'a,

source§

impl<'a, I> Debug for ByRefSized<'a, I>where I: Debug,

1.21.0 · source§

impl<'a, I, A> Debug for Splice<'a, I, A>where I: Debug + Iterator + 'a, A: Debug + Allocator + 'a, <I as Iterator>::Item: Debug,

source§

impl<'a, K, F> Debug for std::collections::hash_set::ExtractIf<'a, K, F>where F: FnMut(&K) -> bool,

source§

impl<'a, K, V, F> Debug for std::collections::hash_map::ExtractIf<'a, K, V, F>where F: FnMut(&K, &mut V) -> bool,

1.5.0 · source§

impl<'a, P> Debug for MatchIndices<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

1.2.0 · source§

impl<'a, P> Debug for Matches<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

1.5.0 · source§

impl<'a, P> Debug for RMatchIndices<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

1.2.0 · source§

impl<'a, P> Debug for RMatches<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

source§

impl<'a, P> Debug for std::str::RSplit<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

source§

impl<'a, P> Debug for std::str::RSplitN<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

source§

impl<'a, P> Debug for RSplitTerminator<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

source§

impl<'a, P> Debug for std::str::Split<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

1.51.0 · source§

impl<'a, P> Debug for std::str::SplitInclusive<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

source§

impl<'a, P> Debug for std::str::SplitN<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

source§

impl<'a, P> Debug for SplitTerminator<'a, P>where P: Pattern<'a>, <P as Pattern<'a>>::Searcher: Debug,

1.17.0 · source§

impl<'a, T> Debug for std::collections::btree_set::Range<'a, T>where T: Debug + 'a,

source§

impl<'a, T> Debug for std::result::Iter<'a, T>where T: Debug + 'a,

source§

impl<'a, T> Debug for std::result::IterMut<'a, T>where T: Debug + 'a,

source§

impl<'a, T> Debug for Chunks<'a, T>where T: Debug + 'a,

1.31.0 · source§

impl<'a, T> Debug for ChunksExact<'a, T>where T: Debug + 'a,

1.31.0 · source§

impl<'a, T> Debug for ChunksExactMut<'a, T>where T: Debug + 'a,

source§

impl<'a, T> Debug for ChunksMut<'a, T>where T: Debug + 'a,

1.31.0 · source§

impl<'a, T> Debug for RChunks<'a, T>where T: Debug + 'a,

1.31.0 · source§

impl<'a, T> Debug for RChunksExact<'a, T>where T: Debug + 'a,

1.31.0 · source§

impl<'a, T> Debug for RChunksExactMut<'a, T>where T: Debug + 'a,

1.31.0 · source§

impl<'a, T> Debug for RChunksMut<'a, T>where T: Debug + 'a,

source§

impl<'a, T> Debug for Windows<'a, T>where T: Debug + 'a,

1.6.0 · source§

impl<'a, T, A> Debug for std::collections::binary_heap::Drain<'a, T, A>where T: Debug + 'a, A: Debug + Allocator,

source§

impl<'a, T, A> Debug for DrainSorted<'a, T, A>where T: Debug + Ord, A: Debug + Allocator,

source§

impl<'a, T, F, A> Debug for std::vec::ExtractIf<'a, T, F, A>where T: Debug, F: Debug + FnMut(&mut T) -> bool, A: Debug + Allocator,

source§

impl<'a, T, P> Debug for GroupBy<'a, T, P>where T: 'a + Debug,

source§

impl<'a, T, P> Debug for GroupByMut<'a, T, P>where T: 'a + Debug,

source§

impl<'a, T, const N: usize> Debug for std::slice::ArrayChunks<'a, T, N>where T: Debug + 'a,

source§

impl<'a, T, const N: usize> Debug for ArrayChunksMut<'a, T, N>where T: Debug + 'a,

source§

impl<'a, T, const N: usize> Debug for ArrayWindows<'a, T, N>where T: Debug + 'a,

source§

impl<'a, T: Debug + 'a> Debug for std::sync::mpsc::Iter<'a, T>

1.15.0 · source§

impl<'a, T: Debug + 'a> Debug for TryIter<'a, T>

source§

impl<'a, const N: usize> Debug for CharArraySearcher<'a, N>

source§

impl<'f> Debug for VaListImpl<'f>

1.63.0 · source§

impl<'scope, T> Debug for ScopedJoinHandle<'scope, T>

source§

impl<A> Debug for std::iter::Repeat<A>where A: Debug,

source§

impl<A> Debug for std::option::IntoIter<A>where A: Debug,

source§

impl<A, B> Debug for std::iter::Chain<A, B>where A: Debug, B: Debug,

source§

impl<A, B> Debug for Zip<A, B>where A: Debug, B: Debug,

source§

impl<B> Debug for Cow<'_, B>where B: Debug + ToOwned + ?Sized, <B as ToOwned>::Owned: Debug,

1.55.0 · source§

impl<B, C> Debug for ControlFlow<B, C>where B: Debug, C: Debug,

source§

impl<B: Debug> Debug for std::io::Lines<B>

source§

impl<B: Debug> Debug for std::io::Split<B>

source§

impl<Dyn> Debug for DynMetadata<Dyn>where Dyn: ?Sized,

source§

impl<E> Debug for Report<E>where Report<E>: Display,

1.64.0 · source§

impl<F> Debug for PollFn<F>

1.34.0 · source§

impl<F> Debug for FromFn<F>

1.68.0 · source§

impl<F> Debug for OnceWith<F>

1.68.0 · source§

impl<F> Debug for RepeatWith<F>

source§

impl<F> Debug for CharPredicateSearcher<'_, F>where F: FnMut(char) -> bool,

1.4.0 · source§

impl<F> Debug for Fwhere F: FnPtr,

1.9.0 · source§

impl<H> Debug for BuildHasherDefault<H>

source§

impl<I> Debug for FromIter<I>where I: Debug,

1.9.0 · source§

impl<I> Debug for DecodeUtf16<I>where I: Debug + Iterator<Item = u16>,

1.1.0 · source§

impl<I> Debug for Cloned<I>where I: Debug,

1.36.0 · source§

impl<I> Debug for Copied<I>where I: Debug,

source§

impl<I> Debug for Cycle<I>where I: Debug,

source§

impl<I> Debug for Enumerate<I>where I: Debug,

source§

impl<I> Debug for Fuse<I>where I: Debug,

source§

impl<I> Debug for Intersperse<I>where I: Debug + Iterator, <I as Iterator>::Item: Clone + Debug,

source§

impl<I> Debug for Peekable<I>where I: Debug + Iterator, <I as Iterator>::Item: Debug,

source§

impl<I> Debug for Skip<I>where I: Debug,

1.28.0 · source§

impl<I> Debug for StepBy<I>where I: Debug,

source§

impl<I> Debug for std::iter::Take<I>where I: Debug,

1.9.0 · source§

impl<I, F> Debug for FilterMap<I, F>where I: Debug,

1.9.0 · source§

impl<I, F> Debug for Inspect<I, F>where I: Debug,

1.9.0 · source§

impl<I, F> Debug for Map<I, F>where I: Debug,

source§

impl<I, F, const N: usize> Debug for MapWindows<I, F, N>where I: Iterator + Debug,

source§

impl<I, G> Debug for IntersperseWith<I, G>where I: Iterator + Debug, <I as Iterator>::Item: Debug, G: Debug,

1.9.0 · source§

impl<I, P> Debug for Filter<I, P>where I: Debug,

1.57.0 · source§

impl<I, P> Debug for MapWhile<I, P>where I: Debug,

1.9.0 · source§

impl<I, P> Debug for SkipWhile<I, P>where I: Debug,

1.9.0 · source§

impl<I, P> Debug for TakeWhile<I, P>where I: Debug,

1.9.0 · source§

impl<I, St, F> Debug for Scan<I, St, F>where I: Debug, St: Debug,

1.29.0 · source§

impl<I, U> Debug for Flatten<I>where I: Debug + Iterator, <I as Iterator>::Item: IntoIterator<IntoIter = U, Item = <U as Iterator>::Item>, U: Debug + Iterator,

1.9.0 · source§

impl<I, U, F> Debug for FlatMap<I, U, F>where I: Debug, U: IntoIterator, <U as IntoIterator>::IntoIter: Debug,

source§

impl<I, const N: usize> Debug for std::iter::ArrayChunks<I, N>where I: Debug + Iterator, <I as Iterator>::Item: Debug,

source§

impl<Idx> Debug for std::ops::Range<Idx>where Idx: Debug,

source§

impl<Idx> Debug for RangeFrom<Idx>where Idx: Debug,

1.26.0 · source§

impl<Idx> Debug for RangeInclusive<Idx>where Idx: Debug,

source§

impl<Idx> Debug for RangeTo<Idx>where Idx: Debug,

1.26.0 · source§

impl<Idx> Debug for RangeToInclusive<Idx>where Idx: Debug,

source§

impl<K, V> Debug for std::collections::btree_map::Cursor<'_, K, V>where K: Debug, V: Debug,

1.17.0 · source§

impl<K, V> Debug for std::collections::btree_map::Iter<'_, K, V>where K: Debug, V: Debug,

1.17.0 · source§

impl<K, V> Debug for std::collections::btree_map::IterMut<'_, K, V>where K: Debug, V: Debug,

1.17.0 · source§

impl<K, V> Debug for std::collections::btree_map::Keys<'_, K, V>where K: Debug,

1.17.0 · source§

impl<K, V> Debug for std::collections::btree_map::Range<'_, K, V>where K: Debug, V: Debug,

1.17.0 · source§

impl<K, V> Debug for RangeMut<'_, K, V>where K: Debug, V: Debug,

1.17.0 · source§

impl<K, V> Debug for std::collections::btree_map::Values<'_, K, V>where V: Debug,

1.10.0 · source§

impl<K, V> Debug for std::collections::btree_map::ValuesMut<'_, K, V>where V: Debug,

1.16.0 · source§

impl<K, V> Debug for std::collections::hash_map::Drain<'_, K, V>where K: Debug, V: Debug,

1.16.0 · source§

impl<K, V> Debug for std::collections::hash_map::IterMut<'_, K, V>where K: Debug, V: Debug,

1.12.0 · source§

impl<K, V, A> Debug for std::collections::btree_map::Entry<'_, K, V, A>where K: Debug + Ord, V: Debug, A: Allocator + Clone,

source§

impl<K, V, A> Debug for std::collections::btree_map::CursorMut<'_, K, V, A>where K: Debug, V: Debug,

1.17.0 · source§

impl<K, V, A> Debug for std::collections::btree_map::IntoIter<K, V, A>where K: Debug, V: Debug, A: Allocator + Clone,

1.54.0 · source§

impl<K, V, A> Debug for std::collections::btree_map::IntoKeys<K, V, A>where K: Debug, A: Allocator + Clone,

1.54.0 · source§

impl<K, V, A> Debug for std::collections::btree_map::IntoValues<K, V, A>where V: Debug, A: Allocator + Clone,

1.12.0 · source§

impl<K, V, A> Debug for std::collections::btree_map::OccupiedEntry<'_, K, V, A>where K: Debug + Ord, V: Debug, A: Allocator + Clone,

source§

impl<K, V, A> Debug for std::collections::btree_map::OccupiedError<'_, K, V, A>where K: Debug + Ord, V: Debug, A: Allocator + Clone,

1.12.0 · source§

impl<K, V, A> Debug for std::collections::btree_map::VacantEntry<'_, K, V, A>where K: Debug + Ord, A: Allocator + Clone,

source§

impl<K, V, A> Debug for BTreeMap<K, V, A>where K: Debug, V: Debug, A: Allocator + Clone,

source§

impl<K, V, F> Debug for std::collections::btree_map::ExtractIf<'_, K, V, F, Global>where K: Debug, V: Debug, F: FnMut(&K, &mut V) -> bool,

source§

impl<K, V, S> Debug for HashMap<K, V, S>where K: Debug, V: Debug,

source§

impl<K, V, S> Debug for RawEntryBuilder<'_, K, V, S>

source§

impl<K, V, S> Debug for RawEntryBuilderMut<'_, K, V, S>

source§

impl<K, V, S> Debug for RawVacantEntryMut<'_, K, V, S>

1.54.0 · source§

impl<K, V: Debug> Debug for std::collections::hash_map::IntoValues<K, V>

1.16.0 · source§

impl<K, V: Debug> Debug for std::collections::hash_map::Values<'_, K, V>

1.16.0 · source§

impl<K, V: Debug> Debug for std::collections::hash_map::ValuesMut<'_, K, V>

1.16.0 · source§

impl<K: Debug> Debug for std::collections::hash_set::Drain<'_, K>

1.16.0 · source§

impl<K: Debug> Debug for std::collections::hash_set::IntoIter<K>

1.16.0 · source§

impl<K: Debug> Debug for std::collections::hash_set::Iter<'_, K>

1.54.0 · source§

impl<K: Debug, V> Debug for std::collections::hash_map::IntoKeys<K, V>

1.16.0 · source§

impl<K: Debug, V> Debug for std::collections::hash_map::Keys<'_, K, V>

1.12.0 · source§

impl<K: Debug, V> Debug for std::collections::hash_map::VacantEntry<'_, K, V>

1.12.0 · source§

impl<K: Debug, V: Debug> Debug for std::collections::hash_map::Entry<'_, K, V>

1.16.0 · source§

impl<K: Debug, V: Debug> Debug for std::collections::hash_map::IntoIter<K, V>

1.16.0 · source§

impl<K: Debug, V: Debug> Debug for std::collections::hash_map::Iter<'_, K, V>

1.12.0 · source§

impl<K: Debug, V: Debug> Debug for std::collections::hash_map::OccupiedEntry<'_, K, V>

source§

impl<K: Debug, V: Debug> Debug for std::collections::hash_map::OccupiedError<'_, K, V>

source§

impl<K: Debug, V: Debug, S> Debug for RawEntryMut<'_, K, V, S>

source§

impl<K: Debug, V: Debug, S> Debug for RawOccupiedEntryMut<'_, K, V, S>

1.33.0 · source§

impl<P> Debug for Pin<P>where P: Debug,

source§

impl<R> Debug for BufReader<R>where R: ?Sized + Debug,

source§

impl<R: Debug> Debug for std::io::Bytes<R>

1.17.0 · source§

impl<T> Debug for Bound<T>where T: Debug,

source§

impl<T> Debug for Option<T>where T: Debug,

source§

impl<T> Debug for TryLockError<T>

source§

impl<T> Debug for TrySendError<T>

1.36.0 · source§

impl<T> Debug for Poll<T>where T: Debug,

source§

impl<T> Debug for *const Twhere T: ?Sized,

source§

impl<T> Debug for *mut Twhere T: ?Sized,

source§

impl<T> Debug for &Twhere T: Debug + ?Sized,

source§

impl<T> Debug for &mut Twhere T: Debug + ?Sized,

source§

impl<T> Debug for [T]where T: Debug,

source§

impl<T> Debug for (T₁, T₂, …, Tₙ)where T: Debug + ?Sized,

This trait is implemented for tuples up to twelve items long.

source§

impl<T> Debug for ThinBox<T>where T: Debug + ?Sized,

source§

impl<T> Debug for Cell<T>where T: Copy + Debug,

1.70.0 · source§

impl<T> Debug for OnceCell<T>where T: Debug,

source§

impl<T> Debug for Ref<'_, T>where T: Debug + ?Sized,

source§

impl<T> Debug for RefCell<T>where T: Debug + ?Sized,

source§

impl<T> Debug for RefMut<'_, T>where T: Debug + ?Sized,

source§

impl<T> Debug for SyncUnsafeCell<T>where T: ?Sized,

1.9.0 · source§

impl<T> Debug for UnsafeCell<T>where T: ?Sized,

1.19.0 · source§

impl<T> Debug for Reverse<T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::binary_heap::Iter<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::btree_set::Iter<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::btree_set::SymmetricDifference<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::btree_set::Union<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::linked_list::Iter<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::linked_list::IterMut<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::vec_deque::Iter<'_, T>where T: Debug,

1.17.0 · source§

impl<T> Debug for std::collections::vec_deque::IterMut<'_, T>where T: Debug,

1.48.0 · source§

impl<T> Debug for Pending<T>

1.48.0 · source§

impl<T> Debug for Ready<T>where T: Debug,

1.9.0 · source§

impl<T> Debug for std::iter::Empty<T>

1.2.0 · source§

impl<T> Debug for std::iter::Once<T>where T: Debug,

source§

impl<T> Debug for Rev<T>where T: Debug,

source§

impl<T> Debug for PhantomData<T>where T: ?Sized,

1.21.0 · source§

impl<T> Debug for Discriminant<T>

1.20.0 · source§

impl<T> Debug for ManuallyDrop<T>where T: Debug + ?Sized,

1.74.0 · source§

impl<T> Debug for Saturating<T>where T: Debug,

source§

impl<T> Debug for Wrapping<T>where T: Debug,

source§

impl<T> Debug for Yeet<T>where T: Debug,

1.16.0 · source§

impl<T> Debug for AssertUnwindSafe<T>where T: Debug,

1.25.0 · source§

impl<T> Debug for NonNull<T>where T: ?Sized,

source§

impl<T> Debug for UniqueRc<T>where T: Debug,

source§

impl<T> Debug for std::result::IntoIter<T>where T: Debug,

1.9.0 · source§

impl<T> Debug for std::slice::Iter<'_, T>where T: Debug,

1.9.0 · source§

impl<T> Debug for std::slice::IterMut<'_, T>where T: Debug,

1.3.0 · source§

impl<T> Debug for AtomicPtr<T>

1.8.0 · source§

impl<T> Debug for Receiver<T>

source§

impl<T> Debug for SendError<T>

1.8.0 · source§

impl<T> Debug for Sender<T>

1.8.0 · source§

impl<T> Debug for SyncSender<T>

source§

impl<T> Debug for Exclusive<T>where T: ?Sized,

source§

impl<T> Debug for PoisonError<T>

1.4.0 · source§

impl<T> Debug for std::sync::Weak<T, Global>where T: ?Sized,

1.16.0 · source§

impl<T> Debug for JoinHandle<T>

1.41.0 · source§

impl<T> Debug for MaybeUninit<T>

source§

impl<T, A> Debug for Box<T, A>where T: Debug + ?Sized, A: Allocator,

1.17.0 · source§

impl<T, A> Debug for std::collections::binary_heap::IntoIter<T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for IntoIterSorted<T, A>where T: Debug, A: Debug + Allocator,

1.17.0 · source§

impl<T, A> Debug for PeekMut<'_, T, A>where T: Ord + Debug, A: Allocator,

1.17.0 · source§

impl<T, A> Debug for std::collections::btree_set::Difference<'_, T, A>where T: Debug, A: Allocator + Clone,

1.17.0 · source§

impl<T, A> Debug for std::collections::btree_set::Intersection<'_, T, A>where T: Debug, A: Allocator + Clone,

source§

impl<T, A> Debug for std::collections::btree_set::IntoIter<T, A>where T: Debug, A: Debug + Allocator + Clone,

source§

impl<T, A> Debug for std::collections::linked_list::Cursor<'_, T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for std::collections::linked_list::CursorMut<'_, T, A>where T: Debug, A: Allocator,

1.17.0 · source§

impl<T, A> Debug for std::collections::linked_list::IntoIter<T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for BTreeSet<T, A>where T: Debug, A: Allocator + Clone,

1.4.0 · source§

impl<T, A> Debug for BinaryHeap<T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for LinkedList<T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for VecDeque<T, A>where T: Debug, A: Allocator,

1.17.0 · source§

impl<T, A> Debug for std::collections::vec_deque::Drain<'_, T, A>where T: Debug, A: Allocator,

1.17.0 · source§

impl<T, A> Debug for std::collections::vec_deque::IntoIter<T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for Rc<T, A>where T: Debug + ?Sized, A: Allocator,

1.4.0 · source§

impl<T, A> Debug for std::rc::Weak<T, A>where A: Allocator, T: ?Sized,

source§

impl<T, A> Debug for Arc<T, A>where T: Debug + ?Sized, A: Allocator,

1.17.0 · source§

impl<T, A> Debug for std::vec::Drain<'_, T, A>where T: Debug, A: Allocator,

1.13.0 · source§

impl<T, A> Debug for std::vec::IntoIter<T, A>where T: Debug, A: Allocator,

source§

impl<T, A> Debug for Vec<T, A>where T: Debug, A: Allocator,

source§

impl<T, E> Debug for Result<T, E>where T: Debug, E: Debug,

source§

impl<T, F> Debug for LazyCell<T, F>where T: Debug,

source§

impl<T, F> Debug for std::collections::linked_list::ExtractIf<'_, T, F, Global>where T: Debug, F: FnMut(&mut T) -> bool,

1.34.0 · source§

impl<T, F> Debug for Successors<T, F>where T: Debug,

source§

impl<T, F, A> Debug for std::collections::btree_set::ExtractIf<'_, T, F, A>where A: Allocator + Clone, T: Debug, F: FnMut(&T) -> bool,

1.27.0 · source§

impl<T, P> Debug for std::slice::RSplit<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.27.0 · source§

impl<T, P> Debug for RSplitMut<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.9.0 · source§

impl<T, P> Debug for std::slice::RSplitN<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.9.0 · source§

impl<T, P> Debug for RSplitNMut<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.9.0 · source§

impl<T, P> Debug for std::slice::Split<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.51.0 · source§

impl<T, P> Debug for std::slice::SplitInclusive<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.51.0 · source§

impl<T, P> Debug for SplitInclusiveMut<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.9.0 · source§

impl<T, P> Debug for SplitMut<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.9.0 · source§

impl<T, P> Debug for std::slice::SplitN<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.9.0 · source§

impl<T, P> Debug for SplitNMut<'_, T, P>where T: Debug, P: FnMut(&T) -> bool,

1.16.0 · source§

impl<T, S> Debug for std::collections::hash_set::Difference<'_, T, S>where T: Debug + Eq + Hash, S: BuildHasher,

source§

impl<T, S> Debug for HashSet<T, S>where T: Debug,

1.16.0 · source§

impl<T, S> Debug for std::collections::hash_set::Intersection<'_, T, S>where T: Debug + Eq + Hash, S: BuildHasher,

1.16.0 · source§

impl<T, S> Debug for std::collections::hash_set::SymmetricDifference<'_, T, S>where T: Debug + Eq + Hash, S: BuildHasher,

1.16.0 · source§

impl<T, S> Debug for std::collections::hash_set::Union<'_, T, S>where T: Debug + Eq + Hash, S: BuildHasher,

source§

impl<T, const LANES: usize> Debug for Mask<T, LANES>where T: MaskElement + Debug, LaneCount<LANES>: SupportedLaneCount,

source§

impl<T, const LANES: usize> Debug for Simd<T, LANES>where LaneCount<LANES>: SupportedLaneCount, T: SimdElement + Debug,

source§

impl<T, const N: usize> Debug for [T; N]where T: Debug,

1.40.0 · source§

impl<T, const N: usize> Debug for std::array::IntoIter<T, N>where T: Debug,

1.16.0 · source§

impl<T: 'static> Debug for LocalKey<T>

source§

impl<T: Debug> Debug for std::io::Cursor<T>

source§

impl<T: Debug> Debug for std::io::Take<T>

1.1.0 · source§

impl<T: Debug> Debug for std::sync::mpsc::IntoIter<T>

1.70.0 · source§

impl<T: Debug> Debug for OnceLock<T>

1.16.0 · source§

impl<T: Debug> Debug for RwLockReadGuard<'_, T>

1.16.0 · source§

impl<T: Debug> Debug for RwLockWriteGuard<'_, T>

source§

impl<T: Debug, F> Debug for LazyLock<T, F>

source§

impl<T: Debug, U: Debug> Debug for std::io::Chain<T, U>

source§

impl<T: ?Sized + Debug> Debug for Mutex<T>

1.16.0 · source§

impl<T: ?Sized + Debug> Debug for MutexGuard<'_, T>

source§

impl<T: ?Sized + Debug> Debug for RwLock<T>

source§

impl<W> Debug for BufWriter<W>where W: Debug + ?Sized + Write,

source§

impl<W> Debug for LineWriter<W>where W: Debug + ?Sized + Write,

source§

impl<W: Debug> Debug for IntoInnerError<W>

source§

impl<Y, R> Debug for GeneratorState<Y, R>where Y: Debug, R: Debug,

source§

impl<const N: usize> Debug for GetManyMutError<N>