pub trait Debug { fn fmt(&self, &mut Formatter) -> Result<(), Error>; }
Format trait for the ?
character.
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 derive
d 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 enum
s, it will use the name of the variant and, if applicable, (
, then the Debug
values of the fields, then )
.
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 }
impl Debug for DecodeUtf16Error
impl<T> Debug for Wrapping<T> where T: Debug
impl<T> Debug for Discriminant<T>
impl Debug for RangeFull
impl<Idx> Debug for Range<Idx> where Idx: Debug
impl<Idx> Debug for RangeFrom<Idx> where Idx: Debug
impl<Idx> Debug for RangeTo<Idx> where Idx: Debug
impl<Idx> Debug for RangeInclusive<Idx> where Idx: Debug
impl<Idx> Debug for RangeToInclusive<Idx> where Idx: Debug
impl Debug for core::any::Any + 'static
impl Debug for core::any::Any + 'static + Send
impl Debug for AtomicBool
impl<T> Debug for AtomicPtr<T>
impl Debug for BorrowError
impl Debug for BorrowMutError
impl<T> Debug for Empty<T>
impl<I, F> Debug for Map<I, F> where I: Debug
impl<I, P> Debug for Filter<I, P> where I: Debug
impl<I, F> Debug for FilterMap<I, F> where I: Debug
impl<I, P> Debug for SkipWhile<I, P> where I: Debug
impl<I, P> Debug for TakeWhile<I, P> where I: Debug
impl<I, St, F> Debug for Scan<I, St, F> where I: Debug, St: Debug
impl<I, U, F> Debug for FlatMap<I, U, F> where I: Debug,
U: IntoIterator,
U::IntoIter: Debug
impl<I, F> Debug for Inspect<I, F> where I: Debug
impl<'a, T> Debug for collections::slice::Iter<'a, T> where T: 'a + Debug
impl<'a, T> Debug for collections::slice::IterMut<'a, T> where T: 'a + Debug
impl<'a, T, P> Debug for collections::slice::Split<'a, T, P> where P: FnMut(&T) -> bool,
T: 'a + Debug
impl<'a, T, P> Debug for SplitMut<'a, T, P> where P: FnMut(&T) -> bool,
T: 'a + Debug
impl<'a, T, P> Debug for collections::slice::SplitN<'a, T, P> where P: FnMut(&T) -> bool,
T: 'a + Debug
impl<'a, T, P> Debug for collections::slice::RSplitN<'a, T, P> where P: FnMut(&T) -> bool,
T: 'a + Debug
impl<'a, T, P> Debug for SplitNMut<'a, T, P> where P: FnMut(&T) -> bool,
T: 'a + Debug
impl<'a, T, P> Debug for RSplitNMut<'a, T, P> where P: FnMut(&T) -> bool,
T: 'a + Debug
impl<'a, F> Debug for CharPredicateSearcher<'a, F> where F: FnMut(char) -> bool
impl<H> Debug for BuildHasherDefault<H>
impl<'a> Debug for Arguments<'a>
impl Debug for !
impl Debug for bool
impl Debug for str
impl Debug for char
impl<T> Debug for *const T where T: ?Sized
impl<T> Debug for *mut T where T: ?Sized
impl<T> Debug for [T] where T: Debug
impl Debug for ()
impl<T> Debug for PhantomData<T> where T: ?Sized
impl<T> Debug for Cell<T> where T: Copy + Debug
impl<T> Debug for RefCell<T> where T: Debug + ?Sized
impl<'b, T> Debug for Ref<'b, T> where T: Debug + ?Sized
impl<'b, T> Debug for RefMut<'b, T> where T: Debug + ?Sized
impl<T> Debug for UnsafeCell<T> where T: Debug + ?Sized
impl Debug for ParseFloatError
impl Debug for FpCategory
impl Debug for TryFromIntError
impl Debug for ParseIntError
impl<T> Debug for NonZero<T> where T: Zeroable + Debug
impl<Ret> Debug for fn() -> Ret
impl<Ret> Debug for extern fn() -> Ret
impl<Ret> Debug for unsafe fn() -> Ret
impl<Ret> Debug for unsafe extern fn() -> Ret
impl<Ret, A> Debug for fn(A) -> Ret
impl<Ret, A> Debug for extern fn(A) -> Ret
impl<Ret, A> Debug for extern fn(A, ...) -> Ret
impl<Ret, A> Debug for unsafe fn(A) -> Ret
impl<Ret, A> Debug for unsafe extern fn(A) -> Ret
impl<Ret, A> Debug for unsafe extern fn(A, ...) -> Ret
impl<Ret, A, B> Debug for fn(A, B) -> Ret
impl<Ret, A, B> Debug for extern fn(A, B) -> Ret
impl<Ret, A, B> Debug for extern fn(A, B, ...) -> Ret
impl<Ret, A, B> Debug for unsafe fn(A, B) -> Ret
impl<Ret, A, B> Debug for unsafe extern fn(A, B) -> Ret
impl<Ret, A, B> Debug for unsafe extern fn(A, B, ...) -> Ret
impl<Ret, A, B, C> Debug for fn(A, B, C) -> Ret
impl<Ret, A, B, C> Debug for extern fn(A, B, C) -> Ret
impl<Ret, A, B, C> Debug for extern fn(A, B, C, ...) -> Ret
impl<Ret, A, B, C> Debug for unsafe fn(A, B, C) -> Ret
impl<Ret, A, B, C> Debug for unsafe extern fn(A, B, C) -> Ret
impl<Ret, A, B, C> Debug for unsafe extern fn(A, B, C, ...) -> Ret
impl<Ret, A, B, C, D> Debug for fn(A, B, C, D) -> Ret
impl<Ret, A, B, C, D> Debug for extern fn(A, B, C, D) -> Ret
impl<Ret, A, B, C, D> Debug for extern fn(A, B, C, D, ...) -> Ret
impl<Ret, A, B, C, D> Debug for unsafe fn(A, B, C, D) -> Ret
impl<Ret, A, B, C, D> Debug for unsafe extern fn(A, B, C, D) -> Ret
impl<Ret, A, B, C, D> Debug for unsafe extern fn(A, B, C, D, ...) -> Ret
impl<Ret, A, B, C, D, E> Debug for fn(A, B, C, D, E) -> Ret
impl<Ret, A, B, C, D, E> Debug for extern fn(A, B, C, D, E) -> Ret
impl<Ret, A, B, C, D, E> Debug for extern fn(A, B, C, D, E, ...) -> Ret
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 unsafe extern fn(A, B, C, D, E) -> Ret
impl<Ret, A, B, C, D, E> Debug for unsafe extern fn(A, B, C, D, E, ...) -> Ret
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> Debug for extern fn(A, B, C, D, E, F) -> Ret
impl<Ret, A, B, C, D, E, F> Debug for extern fn(A, B, C, D, E, F, ...) -> Ret
impl<Ret, A, B, C, D, E, F> Debug for unsafe fn(A, B, C, D, E, F) -> Ret
impl<Ret, A, B, C, D, E, F> Debug for unsafe extern fn(A, B, C, D, E, F) -> Ret
impl<Ret, A, B, C, D, E, F> Debug for unsafe extern fn(A, B, C, D, E, F, ...) -> Ret
impl<Ret, A, B, C, D, E, F, G> Debug for fn(A, B, C, D, E, F, G) -> Ret
impl<Ret, A, B, C, D, E, F, G> Debug for extern fn(A, B, C, D, E, F, G) -> Ret
impl<Ret, A, B, C, D, E, F, G> Debug for extern fn(A, B, C, D, E, F, G, ...) -> Ret
impl<Ret, A, B, C, D, E, F, G> Debug for unsafe fn(A, B, C, D, E, F, G) -> Ret
impl<Ret, A, B, C, D, E, F, G> Debug for unsafe extern fn(A, B, C, D, E, F, G) -> Ret
impl<Ret, A, B, C, D, E, F, G> Debug for unsafe extern fn(A, B, C, D, E, F, G, ...) -> Ret
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, D, E, F, G, H> Debug for extern fn(A, B, C, D, E, F, G, H) -> Ret
impl<Ret, A, B, C, D, E, F, G, H> Debug for extern fn(A, B, C, D, E, F, G, H, ...) -> 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<Ret, A, B, C, D, E, F, G, H> Debug for unsafe extern fn(A, B, C, D, E, F, G, H) -> Ret
impl<Ret, A, B, C, D, E, F, G, H> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, ...) -> 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<Ret, A, B, C, D, E, F, G, H, I> Debug for extern fn(A, B, C, D, E, F, G, H, I) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I> Debug for extern fn(A, B, C, D, E, F, G, H, I, ...) -> Ret
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<Ret, A, B, C, D, E, F, G, H, I> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, I) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, I, ...) -> 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, G, H, I, J> Debug for extern fn(A, B, C, D, E, F, G, H, I, J) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for extern fn(A, B, C, D, E, F, G, H, I, J, ...) -> Ret
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, J> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, I, J) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I, J> Debug for unsafe extern 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> Debug for fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for extern fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for extern fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> 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<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, I, J, K) -> Ret
impl<Ret, A, B, C, D, E, F, G, H, I, J, K> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, I, J, K, ...) -> Ret
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, K, L> Debug for extern 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, K, L> Debug for extern 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, K, L> Debug for unsafe 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, K, L> Debug for unsafe extern 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, K, L> Debug for unsafe extern fn(A, B, C, D, E, F, G, H, I, J, K, L, ...) -> Ret
impl Debug for core::cmp::Ordering
impl Debug for TypeId
impl<T> Debug for [T; 0] where T: Debug
impl<T> Debug for [T; 1] where T: Debug
impl<T> Debug for [T; 2] where T: Debug
impl<T> Debug for [T; 3] where T: Debug
impl<T> Debug for [T; 4] where T: Debug
impl<T> Debug for [T; 5] where T: Debug
impl<T> Debug for [T; 6] where T: Debug
impl<T> Debug for [T; 7] where T: Debug
impl<T> Debug for [T; 8] where T: Debug
impl<T> Debug for [T; 9] where T: Debug
impl<T> Debug for [T; 10] where T: Debug
impl<T> Debug for [T; 11] where T: Debug
impl<T> Debug for [T; 12] where T: Debug
impl<T> Debug for [T; 13] where T: Debug
impl<T> Debug for [T; 14] where T: Debug
impl<T> Debug for [T; 15] where T: Debug
impl<T> Debug for [T; 16] where T: Debug
impl<T> Debug for [T; 17] where T: Debug
impl<T> Debug for [T; 18] where T: Debug
impl<T> Debug for [T; 19] where T: Debug
impl<T> Debug for [T; 20] where T: Debug
impl<T> Debug for [T; 21] where T: Debug
impl<T> Debug for [T; 22] where T: Debug
impl<T> Debug for [T; 23] where T: Debug
impl<T> Debug for [T; 24] where T: Debug
impl<T> Debug for [T; 25] where T: Debug
impl<T> Debug for [T; 26] where T: Debug
impl<T> Debug for [T; 27] where T: Debug
impl<T> Debug for [T; 28] where T: Debug
impl<T> Debug for [T; 29] where T: Debug
impl<T> Debug for [T; 30] where T: Debug
impl<T> Debug for [T; 31] where T: Debug
impl<T> Debug for [T; 32] where T: Debug
impl Debug for core::sync::atomic::Ordering
impl Debug for AtomicI8
impl Debug for AtomicU8
impl Debug for AtomicI16
impl Debug for AtomicU16
impl Debug for AtomicI32
impl Debug for AtomicU32
impl Debug for AtomicI64
impl Debug for AtomicU64
impl Debug for AtomicIsize
impl Debug for AtomicUsize
impl Debug for BorrowState
impl Debug for CharTryFromError
impl Debug for EscapeUnicode
impl Debug for EscapeDefault
impl Debug for EscapeDebug
impl<I> Debug for DecodeUtf8<I> where I: Iterator<Item=u8> + Debug
impl Debug for InvalidSequence
impl<A, R> Debug for StepBy<A, R> where A: Debug, R: Debug
impl<A> Debug for Repeat<A> where A: Debug
impl<T> Debug for Once<T> where T: Debug
impl<T> Debug for Rev<T> where T: Debug
impl<I> Debug for Cloned<I> where I: Debug
impl<I> Debug for Cycle<I> where I: Debug
impl<A, B> Debug for Chain<A, B> where A: Debug, B: Debug
impl<A, B> Debug for Zip<A, B> where A: Debug, B: Debug
impl<I> Debug for Enumerate<I> where I: Debug
impl<I> Debug for Peekable<I> where I: Iterator + Debug, I::Item: Debug
impl<I> Debug for Skip<I> where I: Debug
impl<I> Debug for Take<I> where I: Debug
impl<I> Debug for Fuse<I> where I: Debug
impl<T> Debug for Option<T> where T: Debug
impl<'a, A> Debug for core::option::Iter<'a, A> where A: 'a + Debug
impl<'a, A> Debug for core::option::IterMut<'a, A> where A: 'a + Debug
impl<A> Debug for core::option::IntoIter<A> where A: Debug
impl<T, E> Debug for Result<T, E> where E: Debug, T: Debug
impl<'a, T> Debug for core::result::Iter<'a, T> where T: 'a + Debug
impl<'a, T> Debug for core::result::IterMut<'a, T> where T: 'a + Debug
impl<T> Debug for core::result::IntoIter<T> where T: Debug
impl<'a, T> Debug for Windows<'a, T> where T: 'a + Debug
impl<'a, T> Debug for Chunks<'a, T> where T: 'a + Debug
impl<'a, T> Debug for ChunksMut<'a, T> where T: 'a + Debug
impl Debug for SearchStep
impl<'a> Debug for CharSearcher<'a>
impl<'a, 'b> Debug for CharSliceSearcher<'a, 'b>
impl<'a, 'b> Debug for StrSearcher<'a, 'b>
impl Debug for ParseBoolError
impl Debug for Utf8Error
impl<'a> Debug for Chars<'a>
impl<'a> Debug for CharIndices<'a>
impl<'a> Debug for Bytes<'a>
impl<'a, P> Debug for collections::str::Split<'a, P> where P: Pattern<'a>, P::Searcher: Debug
impl<'a, P> Debug for RSplit<'a, P> where P: Pattern<'a>, P::Searcher: Debug
impl<'a, P> Debug for SplitTerminator<'a, P> where P: Pattern<'a>,
P::Searcher: Debug
impl<'a, P> Debug for RSplitTerminator<'a, P> where P: Pattern<'a>,
P::Searcher: Debug
impl<'a, P> Debug for collections::str::SplitN<'a, P> where P: Pattern<'a>, P::Searcher: Debug
impl<'a, P> Debug for collections::str::RSplitN<'a, P> where P: Pattern<'a>, P::Searcher: Debug
impl<'a, P> Debug for MatchIndices<'a, P> where P: Pattern<'a>,
P::Searcher: Debug
impl<'a, P> Debug for RMatchIndices<'a, P> where P: Pattern<'a>,
P::Searcher: Debug
impl<'a, P> Debug for Matches<'a, P> where P: Pattern<'a>, P::Searcher: Debug
impl<'a, P> Debug for RMatches<'a, P> where P: Pattern<'a>, P::Searcher: Debug
impl<'a> Debug for Lines<'a>
impl<'a> Debug for LinesAny<'a>
impl Debug for SipHasher13
impl Debug for SipHasher24
impl Debug for SipHasher
impl Debug for Alignment
impl Debug for isize
impl Debug for usize
impl Debug for i8
impl Debug for u8
impl Debug for i16
impl Debug for u16
impl Debug for i32
impl Debug for u32
impl Debug for i64
impl Debug for u64
impl Debug for i128
impl Debug for u128
impl Debug for Error
impl<'a, T> Debug for &'a T where T: Debug + ?Sized
impl<'a, T> Debug for &'a mut T where T: Debug + ?Sized
impl Debug for f32
impl Debug for f64
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,
T2: Debug,
T3: Debug,
T4: Debug,
T5: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
T9: 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,
T2: Debug,
T3: Debug,
T4: Debug,
T5: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
T9: Debug
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,
T2: Debug,
T3: Debug,
T4: Debug,
T5: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
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,
T3: Debug,
T4: Debug,
T5: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
T9: Debug
impl<T4, T5, T6, T7, T8, T9, T10, T11> Debug for (T4, T5, T6, T7, T8, T9, T10, T11) where T10: Debug,
T11: Debug,
T4: Debug,
T5: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
T9: Debug
impl<T5, T6, T7, T8, T9, T10, T11> Debug for (T5, T6, T7, T8, T9, T10, T11) where T10: Debug,
T11: Debug,
T5: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
T9: Debug
impl<T6, T7, T8, T9, T10, T11> Debug for (T6, T7, T8, T9, T10, T11) where T10: Debug,
T11: Debug,
T6: Debug,
T7: Debug,
T8: Debug,
T9: Debug
impl<T7, T8, T9, T10, T11> Debug for (T7, T8, T9, T10, T11) where T10: Debug,
T11: Debug,
T7: Debug,
T8: Debug,
T9: Debug
impl<T8, T9, T10, T11> Debug for (T8, T9, T10, T11) where T10: Debug,
T11: Debug,
T8: Debug,
T9: Debug
impl<T9, T10, T11> Debug for (T9, T10, T11) where T10: Debug,
T11: Debug,
T9: Debug
impl<T10, T11> Debug for (T10, T11) where T10: Debug, T11: Debug
impl<T11> Debug for (T11,) where T11: Debug
impl<T> Debug for Box<T> where T: Debug + ?Sized
impl<T> Debug for alloc::arc::Weak<T> where T: Debug + ?Sized
impl<T> Debug for Arc<T> where T: Debug + ?Sized
impl<T> Debug for Rc<T> where T: Debug + ?Sized
impl<T> Debug for alloc::rc::Weak<T> where T: Debug + ?Sized
impl<T: Debug + Ord> Debug for BinaryHeap<T>
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<T: Debug> Debug for BTreeSet<T>
impl<'a, B: ?Sized> Debug for Cow<'a, B> where B: Debug + ToOwned,
B::Owned: Debug
impl<E: CLike + Debug> Debug for EnumSet<E>
impl<T: Debug> Debug for LinkedList<T>
impl Debug for FromUtf8Error
impl Debug for FromUtf16Error
impl Debug for String
impl Debug for ParseError
impl<T: Debug> Debug for Vec<T>
impl<T: Debug> Debug for collections::vec::IntoIter<T>
impl<T: Debug> Debug for VecDeque<T>
impl<T: Debug> Debug for Bound<T>
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/collections/fmt/trait.Debug.html