Trait alloc::fmt::Debug

#[lang = "debug_trait"]
pub trait Debug {
    fn fmt(&self, f: &mut Formatter) -> Result<(), Error>;
}

? 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 ).

Examples

Deriving an implementation:

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

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

println!("The origin is: {:?}", origin);

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 {
        write!(f, "Point {{ x: {}, y: {} }}", self.x, self.y)
    }
}

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

println!("The origin is: {:?}", origin);

This outputs:

The origin is: Point { x: 0, y: 0 }

There are a number of debug_* methods on Formatter to help you with manual implementations, such as debug_struct.

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 };

println!("The origin is: {:#?}", origin);

This outputs:

The origin is: Point {
    x: 0,
    y: 0
}

Required Methods

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 {
        write!(f, "({:?}, {:?})", self.longitude, self.latitude)
    }
}

assert_eq!("(1.987, 2.983)".to_owned(),
           format!("{:?}", Position { longitude: 1.987, latitude: 2.983, }));

Implementations on Foreign Types

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

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

impl Debug for NonZeroUsize

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

impl<'a, T> Debug for PinMut<'a, T> where     T: Debug + ?Sized,

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

impl Debug for Duration

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

impl Debug for AtomicU8

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

impl<'a> Debug for Utf8LossyChunk<'a>

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

impl Debug for TryFromSliceError

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

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

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

impl Debug for AtomicU32

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

impl Debug for AtomicI64

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

impl Debug for SipHasher

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

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

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

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

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

impl<F> Debug for RepeatWith<F> where     F: Debug,

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

impl Debug for BorrowMutError

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

impl Debug for AtomicI32

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

impl Debug for EscapeUnicode

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

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

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

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

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

impl Debug for NonZeroU128

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

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

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

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

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

impl Debug for EscapeDebug

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

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

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

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

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

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

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

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

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

impl Debug for BorrowError

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

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

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

impl Debug for AtomicI8

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

impl<T> Debug for AtomicPtr<T>

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

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

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

impl Debug for FpCategory

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

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

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

impl Debug for ParseCharError

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

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

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

impl Debug for NonZeroU32

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

impl Debug for AtomicUsize

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

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

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

impl Debug for Any + 'static + Send

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

impl Debug for NonZeroU8

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

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

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

impl Debug for Any + 'static

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

impl Debug for ParseFloatError

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

impl<I> Debug for DecodeUtf8<I> where     I: Iterator<Item = u8> + Debug,

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

impl Debug for AtomicBool

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

impl Debug for AtomicU16

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

impl Debug for EscapeDefault

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

impl<T> Debug for Empty<T>

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

impl Debug for NonZeroU16

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

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

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

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

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

impl Debug for NonZeroU64

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

impl Debug for Ordering

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

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

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

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

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

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

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

impl Debug for TryFromIntError

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

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

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

impl Debug for Ordering

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

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

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

impl Debug for ToLowercase

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

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

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

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

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

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

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

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

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

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

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

impl Debug for RangeFull

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

impl Debug for ToUppercase

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

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

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

impl Debug for AtomicU64

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

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

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

impl Debug for NoneError

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

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

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

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

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

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

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

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

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

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

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

impl Debug for Utf8Lossy

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

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

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

impl<H> Debug for BuildHasherDefault<H>

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

impl Debug for ParseIntError

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

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

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

impl Debug for CharTryFromError

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

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

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

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

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

impl Debug for AtomicI16

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

impl Debug for Any + 'static + Send + Sync

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

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

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

impl<T> Debug for Discriminant<T>

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

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

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

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

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

impl Debug for InvalidSequence

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

impl Debug for DecodeUtf16Error

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

impl Debug for UnicodeVersion

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

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

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

impl Debug for TypeId

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

impl Debug for Pinned

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

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

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

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

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

impl Debug for EscapeDefault

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

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

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

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

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

impl Debug for AtomicIsize

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

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

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

Implementors

• impl<'a> Debug for Lines<'a>

• impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for unsafe fn(A, B, C, D, E, F, G, H, I, J) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I> Debug for fn(A, B, C, D, E, F, G, H, I) -> Ret

• impl<'a, T, P> Debug for alloc::slice::RSplitN<'a, T, P> where     P: FnMut(&T) -> bool,     T: 'a + Debug,

• impl<T> Debug for [T; 3] where     T: Debug,

• impl Debug for u16

• impl<T> Debug for [T; 10] where     T: Debug,

• impl Debug for char

• impl<Ret, A, B, C, D, E, F> Debug for unsafe extern "C" fn(A, B, C, D, E, F, ...) -> Ret

• impl<Ret, A, B, C, D, E, F> Debug for extern "C" fn(A, B, C, D, E, F) -> Ret

• impl<'a> Debug for Chars<'a>

• impl<'a, T, P> Debug for alloc::slice::Split<'a, T, P> where     P: FnMut(&T) -> bool,     T: 'a + Debug,

• impl Debug for i8

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

• impl<T> Debug for [T; 7] where     T: Debug,

• impl<'a, T, P> Debug for alloc::slice::SplitN<'a, T, P> where     P: FnMut(&T) -> bool,     T: 'a + Debug,

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

• impl<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Debug for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where     T1: Debug,     T10: Debug,     T11: Debug + ?Sized,     T2: Debug,     T3: Debug,     T4: Debug,     T5: Debug,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl<'a, T> Debug for &'a mut T where     T: Debug + ?Sized,

• impl<Ret, A, B, C, D, E, F> Debug for unsafe fn(A, B, C, D, E, F) -> Ret

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

• impl<Ret, A, B, C, D, E> Debug for extern "C" fn(A, B, C, D, E) -> Ret

• impl Debug for !

• impl Debug for SpawnObjError

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

• impl Debug for u32

• impl<T> Debug for [T; 21] where     T: Debug,

• impl<T> Debug for [T; 29] where     T: Debug,

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

• impl<Ret, A, B, C, D, E, F, G, H, I> Debug for unsafe fn(A, B, C, D, E, F, G, H, I) -> Ret

• impl<T> Debug for [T; 9] where     T: Debug,

• impl Debug for f32

• impl<T> Debug for [T; 5] where     T: Debug,

• impl Debug for bool

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

• impl Debug for Utf8Error

• impl<Ret, A, B, C> Debug for unsafe extern "C" fn(A, B, C, ...) -> Ret

• impl<'a> Debug for LinesAny<'a>

• impl<T9, T10, T11> Debug for (T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T9: Debug,

• impl<T3, T4, T5, T6, T7, T8, T9, T10, T11> Debug for (T3, T4, T5, T6, T7, T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T3: Debug,     T4: Debug,     T5: Debug,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl<Ret, A, B, C, D> Debug for unsafe extern "C" fn(A, B, C, D) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H> Debug for extern "C" fn(A, B, C, D, E, F, G, H) -> Ret

• impl<'a> Debug for Arguments<'a>

• impl<T> Debug for [T; 20] where     T: Debug,

• impl Debug for i16

• impl Debug for SpawnErrorKind

• impl<Ret, A> Debug for unsafe extern "C" fn(A, ...) -> Ret

• impl<T> Debug for [T; 11] where     T: Debug,

• impl<Ret> Debug for extern "C" fn() -> Ret

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

• impl<Ret, A, B, C, D, E, F, G, H> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, ...) -> Ret

• impl<Ret, A, B, C, D, E> Debug for extern "C" fn(A, B, C, D, E, ...) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for fn(A, B, C, D, E, F, G, H, I, J) -> Ret

• impl<Ret, A, B, C, D, E, F> Debug for extern "C" fn(A, B, C, D, E, F, ...) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for unsafe fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret

• impl<T> Debug for [T; 13] where     T: Debug,

• impl Debug for u8

• impl<T> Debug for [T; 28] where     T: Debug,

• impl<T6, T7, T8, T9, T10, T11> Debug for (T6, T7, T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Debug for unsafe fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret

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

• impl Debug for isize

• impl Debug for u64

• impl<'a, T> Debug for alloc::slice::IterMut<'a, T> where     T: 'a + Debug,

• impl<'a> Debug for CharSearcher<'a>

• impl<Ret, A, B, C, D, E, F, G> Debug for fn(A, B, C, D, E, F, G) -> Ret

• impl<T11> Debug for (T11,) where     T11: Debug + ?Sized,

• impl<Ret, A, B, C, D, E> Debug for unsafe fn(A, B, C, D, E) -> Ret

• impl<Ret, A, B, C, D, E> Debug for fn(A, B, C, D, E) -> Ret

• impl<Ret, A, B, C, D> Debug for extern "C" fn(A, B, C, D) -> Ret

• impl<Ret, A, B> Debug for unsafe extern "C" fn(A, B, ...) -> Ret

• impl<T8, T9, T10, T11> Debug for (T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T8: Debug,     T9: Debug,

• impl<T> Debug for [T; 12] where     T: Debug,

• impl Debug for str

• impl<T7, T8, T9, T10, T11> Debug for (T7, T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T7: Debug,     T8: Debug,     T9: Debug,

• impl<T> Debug for [T; 25] where     T: Debug,

• impl<T> Debug for [T; 0] where     T: Debug,

• impl Debug for ParseBoolError

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

• impl<Ret, A, B, C, D, E, F, G, H> Debug for extern "C" fn(A, B, C, D, E, F, G, H, ...) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret

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

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

• impl<T> Debug for [T; 4] where     T: Debug,

• impl<T> Debug for [T; 14] where     T: Debug,

• impl<Ret, A> Debug for unsafe extern "C" fn(A) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H) -> Ret

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

• impl<Ret, A, B, C, D, E, F> Debug for fn(A, B, C, D, E, F) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret

• impl<T> Debug for [T; 15] where     T: Debug,

• impl<Ret> Debug for fn() -> Ret

• impl<Ret, A, B, C, D> Debug for unsafe extern "C" fn(A, B, C, D, ...) -> Ret

• impl<Ret, A, B, C, D> Debug for fn(A, B, C, D) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H> Debug for unsafe fn(A, B, C, D, E, F, G, H) -> Ret

• impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Debug for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where     T0: Debug,     T1: Debug,     T10: Debug,     T11: Debug + ?Sized,     T2: Debug,     T3: Debug,     T4: Debug,     T5: Debug,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl Debug for f64

• impl<T> Debug for [T; 30] where     T: Debug,

• impl<Ret, A, B, C, D, E, F, G, H, I> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I) -> Ret

• impl<T> Debug for [T; 26] where     T: Debug,

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

• impl<Ret, A, B> Debug for unsafe fn(A, B) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret

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

• impl Debug for Waker

• impl<T> Debug for [T; 24] where     T: Debug,

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret

• impl<Ret, A, B> Debug for extern "C" fn(A, B) -> Ret

• impl<'a> Debug for Context<'a>

• impl<'a, T, P> Debug for alloc::slice::RSplit<'a, T, P> where     P: FnMut(&T) -> bool,     T: 'a + Debug,

• impl<Ret, A, B, C, D, E, F, G, H> Debug for fn(A, B, C, D, E, F, G, H) -> Ret

• impl<Ret, A, B, C> Debug for unsafe extern "C" fn(A, B, C) -> Ret

• impl<T> Debug for [T; 22] where     T: Debug,

• impl<T> Debug for [T; 1] where     T: Debug,

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

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret

• impl<'a> Debug for Bytes<'a>

• impl<T10, T11> Debug for (T10, T11) where     T10: Debug,     T11: Debug + ?Sized,

• impl<Ret> Debug for unsafe fn() -> Ret

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

• impl<T> Debug for [T; 19] where     T: Debug,

• impl<Ret, A, B, C, D, E, F, G, H, I> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, ...) -> Ret

• impl<Ret, A> Debug for extern "C" fn(A, ...) -> Ret

• impl<'a, T> Debug for alloc::slice::Iter<'a, T> where     T: 'a + Debug,

• impl<T> Debug for [T; 32] where     T: Debug,

• impl<T> Debug for [T; 6] where     T: Debug,

• impl<Ret, A> Debug for unsafe fn(A) -> Ret

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

• impl<T> Debug for [T; 18] where     T: Debug,

• impl<T> Debug for [T; 2] where     T: Debug,

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret

• impl<T> Debug for [T; 17] where     T: Debug,

• impl Debug for i64

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

• impl<Ret, A, B> Debug for extern "C" fn(A, B, ...) -> Ret

• impl<Ret, A, B, C, D, E> Debug for unsafe extern "C" fn(A, B, C, D, E) -> Ret

• impl<Ret, A, B> Debug for unsafe extern "C" fn(A, B) -> Ret

• impl<T5, T6, T7, T8, T9, T10, T11> Debug for (T5, T6, T7, T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T5: Debug,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl<Ret, A, B, C> Debug for fn(A, B, C) -> Ret

• impl Debug for usize

• impl<Ret> Debug for unsafe extern "C" fn() -> Ret

• impl<Ret, A, B, C, D, E, F, G> Debug for extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret

• impl<T> Debug for [T; 23] where     T: Debug,

• impl Debug for CannotReallocInPlace

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

• impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Ret

• impl Debug for TaskObj

• impl Debug for ()

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Debug for fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret

• impl<Ret, A, B, C, D, E, F> Debug for unsafe extern "C" fn(A, B, C, D, E, F) -> Ret

• impl Debug for Error

• impl<Ret, A> Debug for fn(A) -> Ret

• impl<'a> Debug for CharIndices<'a>

• impl Debug for u128

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret

• impl<Ret, A, B, C, D, E, F, G> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G) -> Ret

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

• impl Debug for LocalWaker

• impl Debug for Alignment

• impl<T4, T5, T6, T7, T8, T9, T10, T11> Debug for (T4, T5, T6, T7, T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T4: Debug,     T5: Debug,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl<'a> Debug for EncodeUtf16<'a>

• impl<T> Debug for [T; 27] where     T: Debug,

• impl Debug for CollectionAllocErr

• impl<Ret, A, B, C, D, E, F, G> Debug for extern "C" fn(A, B, C, D, E, F, G) -> Ret

• impl<Ret, A, B, C, D, E> Debug for unsafe extern "C" fn(A, B, C, D, E, ...) -> Ret

• impl<Ret, A, B, C, D, E, F, G> Debug for unsafe fn(A, B, C, D, E, F, G) -> Ret

• impl<T> Debug for [T; 16] where     T: Debug,

• impl<Ret, A, B, C, D> Debug for extern "C" fn(A, B, C, D, ...) -> Ret

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

• impl<Ret, A, B, C, D, E, F, G, H, I> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, ...) -> Ret

• impl<T> Debug for [T; 8] where     T: Debug,

• impl<'a, T> Debug for &'a T where     T: Debug + ?Sized,

• impl<Ret, A, B, C> Debug for unsafe fn(A, B, C) -> Ret

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

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

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

• impl<Ret, A> Debug for extern "C" fn(A) -> Ret

• impl<Ret, A, B> Debug for fn(A, B) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret

• impl Debug for i128

• impl Debug for LayoutErr

• impl<T> Debug for [T; 31] where     T: Debug,

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

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

• impl Debug for AllocErr

• impl<Ret, A, B, C, D, E, F, G> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, ...) -> Ret

• impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Ret

• impl<Ret, A, B, C> Debug for extern "C" fn(A, B, C, ...) -> Ret

• impl Debug for SearchStep

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

• impl<Ret, A, B, C> Debug for extern "C" fn(A, B, C) -> Ret

• impl<Ret, A, B, C, D> Debug for unsafe fn(A, B, C, D) -> Ret

• impl Debug for Layout

• impl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Debug for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Ret

• impl Debug for Excess

• impl Debug for i32

• impl<T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> Debug for (T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) where     T10: Debug,     T11: Debug + ?Sized,     T2: Debug,     T3: Debug,     T4: Debug,     T5: Debug,     T6: Debug,     T7: Debug,     T8: Debug,     T9: Debug,

• impl Debug for Global

• impl<T: Debug + ?Sized> Debug for Box<T>

• impl<T: Debug + ?Sized> Debug for PinBox<T>

• impl<T: ?Sized + Debug> Debug for alloc::arc::Weak<T>

• impl<T: ?Sized + Debug> Debug for Arc<T>

• impl<T: ?Sized + Debug> Debug for Rc<T>

• impl<T: ?Sized + Debug> Debug for alloc::rc::Weak<T>

• impl<'a, T: Ord + Debug> Debug for PeekMut<'a, T>

• impl<T: Debug + Ord> Debug for BinaryHeap<T>

• impl<'a, T: 'a + Debug> Debug for alloc::binary_heap::Iter<'a, T>

• impl<T: Debug> Debug for alloc::binary_heap::IntoIter<T>

• impl<'a, T: Debug + 'a> Debug for alloc::binary_heap::Drain<'a, T>

• impl<'a, K: 'a + Debug, V: 'a + Debug> Debug for alloc::btree_map::Iter<'a, K, V>

• impl<'a, K: Debug + 'a, V: Debug + 'a> Debug for alloc::btree_map::IterMut<'a, K, V>

• impl<K: Debug, V: Debug> Debug for alloc::btree_map::IntoIter<K, V>

• impl<'a, K: 'a + Debug, V: 'a> Debug for Keys<'a, K, V>

• impl<'a, K: 'a, V: 'a + Debug> Debug for Values<'a, K, V>

• impl<'a, K: Debug + 'a, V: Debug + 'a> Debug for ValuesMut<'a, K, V>

• impl<'a, K: 'a + Debug, V: 'a + Debug> Debug for alloc::btree_map::Range<'a, K, V>

• impl<'a, K: 'a + Debug, V: 'a + Debug> Debug for RangeMut<'a, K, V>

• impl<'a, K: 'a + Debug + Ord, V: 'a + Debug> Debug for Entry<'a, K, V>

• impl<'a, K: 'a + Debug + Ord, V: 'a> Debug for VacantEntry<'a, K, V>

• impl<'a, K: 'a + Debug + Ord, V: 'a + Debug> Debug for OccupiedEntry<'a, K, V>

• impl<K: Debug, V: Debug> Debug for BTreeMap<K, V>

• impl<'a, T: 'a + Debug> Debug for alloc::btree_set::Iter<'a, T>

• impl<T: Debug> Debug for alloc::btree_set::IntoIter<T>

• impl<'a, T: Debug + 'a> Debug for alloc::btree_set::Range<'a, T>

• impl<'a, T: 'a + Debug> Debug for Difference<'a, T>

• impl<'a, T: 'a + Debug> Debug for SymmetricDifference<'a, T>

• impl<'a, T: 'a + Debug> Debug for Intersection<'a, T>

• impl<'a, T: 'a + Debug> Debug for Union<'a, T>

• impl<T: Debug> Debug for BTreeSet<T>

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

• impl<'a, T: 'a + Debug> Debug for alloc::linked_list::Iter<'a, T>

• impl<'a, T: 'a + Debug> Debug for alloc::linked_list::IterMut<'a, T>

• impl<T: Debug> Debug for alloc::linked_list::IntoIter<T>

• impl<'a, T: 'a + Debug, F> Debug for alloc::linked_list::DrainFilter<'a, T, F> where     F: FnMut(&mut T) -> bool,

• impl<T: Debug> Debug for LinkedList<T>

• impl Debug for FromUtf8Error

• impl Debug for FromUtf16Error

• impl Debug for String

• impl Debug for ParseError

• impl<'a> Debug for alloc::string::Drain<'a>

• impl<T: Debug> Debug for Vec<T>

• impl<T: Debug> Debug for alloc::vec::IntoIter<T>

• impl<'a, T: 'a + Debug> Debug for alloc::vec::Drain<'a, T>

• impl<'a, I: Debug + Iterator + 'a> Debug for Splice<'a, I> where     I::Item: Debug,

• impl<'a, T: Debug + 'a, F: Debug> Debug for alloc::vec::DrainFilter<'a, T, F> where     F: FnMut(&mut T) -> bool,

• impl<'a, T: 'a + Debug> Debug for alloc::vec_deque::Iter<'a, T>

• impl<'a, T: 'a + Debug> Debug for alloc::vec_deque::IterMut<'a, T>

• impl<T: Debug> Debug for alloc::vec_deque::IntoIter<T>

• impl<'a, T: 'a + Debug> Debug for alloc::vec_deque::Drain<'a, T>

• impl<T: Debug> Debug for VecDeque<T>