1.0.0[−][src]Trait frame_support::dispatch::fmt::Display
Format trait for an empty format, {}
.
Display
is similar to Debug
, but Display
is for user-facing
output, and so cannot be derived.
For more information on formatters, see the module-level documentation.
Examples
Implementing Display
on a type:
use std::fmt; struct Point { x: i32, y: i32, } impl fmt::Display for Point { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "({}, {})", self.x, self.y) } } let origin = Point { x: 0, y: 0 }; assert_eq!(format!("The origin is: {}", origin), "The origin is: (0, 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::Display for Position { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "({}, {})", self.longitude, self.latitude) } } assert_eq!("(1.987, 2.983)", format!("{}", Position { longitude: 1.987, latitude: 2.983, }));
Implementations on Foreign Types
impl Display for SocketAddrV4
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impl Display for VarError
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impl<T> Display for PoisonError<T>
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impl Display for SystemTimeError
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impl Display for SocketAddr
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impl Display for AddrParseError
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impl Display for AccessError
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impl Display for RecvError
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impl Display for StripPrefixError
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impl Display for NulError
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impl Display for FromBytesWithNulError
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impl<T> Display for SendError<T>
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impl<T> Display for TryLockError<T>
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impl Display for IntoStringError
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impl Display for RecvTimeoutError
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impl<W> Display for IntoInnerError<W>
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impl Display for ExitStatus
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impl Display for Ipv4Addr
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impl Display for Ipv6Addr
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Write an Ipv6Addr, conforming to the canonical style described by RFC 5952.
impl Display for SocketAddrV6
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impl<'_> Display for Display<'_>
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impl Display for Error
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impl Display for FromVecWithNulError
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impl<'_, T> Display for RwLockWriteGuard<'_, T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<'_, T> Display for MutexGuard<'_, T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for IpAddr
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impl Display for Backtrace
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impl Display for JoinPathsError
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impl<'_, T> Display for RwLockReadGuard<'_, T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for TryRecvError
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impl<T> Display for TrySendError<T>
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impl Display for NonZeroI64
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impl Display for CharTryFromError
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impl<'_, T> Display for Ref<'_, T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for i16
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impl Display for ParseFloatError
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impl Display for ParseBoolError
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impl Display for usize
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impl Display for Infallible
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impl Display for str
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impl Display for NonZeroU8
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impl<T> Display for Wrapping<T> where
T: Display,
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T: Display,
impl Display for f32
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impl Display for i128
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impl Display for u32
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impl Display for NonZeroU128
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impl Display for BorrowMutError
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impl Display for f64
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impl Display for i32
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impl Display for TryFromSliceError
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impl Display for NonZeroU64
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impl<'_, T> Display for &'_ mut T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for u64
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impl Display for ToLowercase
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impl Display for AllocErr
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impl<'_> Display for PanicInfo<'_>
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impl Display for NonZeroU32
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impl Display for BorrowError
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impl Display for bool
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impl Display for EscapeDefault
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impl<'_> Display for Location<'_>
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impl Display for EscapeDefault
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impl Display for i64
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impl Display for u128
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impl Display for ParseIntError
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impl Display for Utf8Lossy
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impl Display for EscapeUnicode
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impl Display for u8
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impl Display for NonZeroUsize
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impl<P> Display for Pin<P> where
P: Display,
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P: Display,
impl Display for NonZeroIsize
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impl Display for NonZeroI8
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impl Display for TryFromIntError
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impl Display for DecodeUtf16Error
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impl Display for !
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impl Display for Utf8Error
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impl<'_, T> Display for &'_ T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for i8
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impl Display for LayoutErr
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impl<'_, T> Display for RefMut<'_, T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for isize
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impl Display for EscapeDebug
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impl Display for NonZeroI128
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impl Display for NonZeroU16
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impl<'a> Display for EscapeUnicode<'a>
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impl Display for ParseCharError
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impl<'a> Display for EscapeDefault<'a>
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impl Display for NonZeroI16
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impl<'a> Display for EscapeDebug<'a>
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impl Display for u16
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impl Display for ToUppercase
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impl Display for char
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impl Display for NonZeroI32
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impl Display for String
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impl Display for FromUtf16Error
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impl<T> Display for Box<T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<'_, B> Display for Cow<'_, B> where
B: Display + ToOwned + ?Sized,
<B as ToOwned>::Owned: Display,
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B: Display + ToOwned + ?Sized,
<B as ToOwned>::Owned: Display,
impl<T> Display for Rc<T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T> Display for Arc<T> where
T: Display + ?Sized,
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T: Display + ?Sized,
impl Display for FromUtf8Error
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impl Display for TryReserveError
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impl<'a> Display for SymbolName<'a>
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impl<'a> Display for Demangle<'a>
impl Display for Level
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impl<'a> Display for ValueSet<'a>
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impl Display for SetGlobalDefaultError
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impl Display for Field
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impl Display for ParseLevelError
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impl Display for FieldSet
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impl Display for LevelFilter
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impl Display for Level
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impl Display for SetLoggerError
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impl Display for ParseLevelError
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impl<'a> Display for dyn Expected + 'a
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impl<'a> Display for Unexpected<'a>
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impl Display for Error
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impl Display for Error
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impl<A> Display for ArrayString<A> where
A: Array<Item = u8> + Copy,
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A: Array<Item = u8> + Copy,
impl<T> Display for CapacityError<T>
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impl Display for Error
impl<'a, R, T> Display for MutexGuard<'a, R, T> where
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
impl<'a, R, T> Display for RwLockReadGuard<'a, R, T> where
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
impl<'a, R, T> Display for RwLockUpgradableReadGuard<'a, R, T> where
R: 'a + RawRwLockUpgrade,
T: 'a + Display + ?Sized,
R: 'a + RawRwLockUpgrade,
T: 'a + Display + ?Sized,
impl<'a, R, T> Display for MappedRwLockWriteGuard<'a, R, T> where
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
impl<'a, R, G, T> Display for MappedReentrantMutexGuard<'a, R, G, T> where
G: 'a + GetThreadId,
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
G: 'a + GetThreadId,
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
impl<'a, R, G, T> Display for ReentrantMutexGuard<'a, R, G, T> where
G: 'a + GetThreadId,
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
G: 'a + GetThreadId,
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
impl<'a, R, T> Display for RwLockWriteGuard<'a, R, T> where
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
impl<'a, R, T> Display for MappedRwLockReadGuard<'a, R, T> where
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
R: 'a + RawRwLock,
T: 'a + Display + ?Sized,
impl<'a, R, T> Display for MappedMutexGuard<'a, R, T> where
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
R: 'a + RawMutex,
T: 'a + Display + ?Sized,
impl Display for ExecutionError
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impl Display for Public
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impl<'a> Display for HexDisplay<'a>
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impl Display for Ss58AddressFormat
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impl Display for AccountId32
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impl Display for Public
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impl Display for CodeNotFound
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impl Display for Public
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impl Display for Error
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impl Display for CryptoTypePublicPair
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impl<A> Display for ArrayString<A> where
A: Array<Item = u8>,
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A: Array<Item = u8>,
impl<T> Display for CapacityError<T>
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impl Display for InvalidOutputSize
impl Display for WeightedError
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impl Display for BernoulliError
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impl Display for ReadError
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impl Display for Error
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impl Display for Error
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impl Display for Regex
impl Display for Error
impl Display for Regex
impl Display for Error
impl Display for Error
impl Display for ErrorKind
impl Display for CaseFoldError
impl Display for Ast
Print a display representation of this Ast.
This does not preserve any of the original whitespace formatting that may have originally been present in the concrete syntax from which this Ast was generated.
This implementation uses constant stack space and heap space proportional
to the size of the Ast
.
impl Display for Hir
Print a display representation of this Hir.
The result of this is a valid regular expression pattern string.
This implementation uses constant stack space and heap space proportional
to the size of the Hir
.
impl Display for ErrorKind
impl Display for UnicodeWordError
impl Display for Error
impl Display for Error
impl Display for Error
impl Display for Trap
impl Display for ValueType
impl Display for Error
impl Display for Instruction
impl Display for Error
impl Display for Error
impl Display for ParseRatioError
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impl<T> Display for Ratio<T> where
T: Display + Eq + One,
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T: Display + Eq + One,
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Renders as numer/denom
. If denom=1, renders as numer.
impl Display for BigInt
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impl Display for ParseBigIntError
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impl Display for BigUint
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impl Display for ParseFloatError
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impl Display for U128
impl Display for U256
impl Display for H512
impl Display for H256
impl Display for U512
impl Display for H160
impl Display for FromHexError
impl Display for FromDecStrErr
impl Display for InvalidKeyLength
impl Display for MacError
impl Display for MultiSignatureStage
impl Display for SignatureError
impl Display for ErrorKind
impl Display for Mnemonic
impl Display for MnemonicType
impl Display for Backtrace
impl Display for Error
impl<E> Display for Compat<E> where
E: Display,
E: Display,
impl<D> Display for Context<D> where
D: 'static + Send + Sync + Display,
D: 'static + Send + Sync + Display,
impl<T> Display for SyncFailure<T> where
T: Display,
T: Display,
impl<'a> Display for BytesOrWideString<'a>
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impl<'a> Display for SymbolName<'a>
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impl<'a> Display for Demangle<'a>
impl Display for DwEhPe
impl<R, Offset> Display for LineInstruction<R, Offset> where
Offset: ReaderOffset,
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
R: Reader<Offset = Offset>,
impl Display for DwUt
impl Display for DwVirtuality
impl Display for DwTag
impl Display for DwLang
impl Display for DwLns
impl Display for DwLnct
impl Display for DwEnd
impl Display for DwAccess
impl Display for DwAte
impl Display for DwInl
impl Display for DwIdx
impl Display for DwId
impl Display for DwLne
impl Display for DwRle
impl Display for Error
impl Display for DwOrd
impl Display for DwCfa
impl Display for DwVis
impl Display for DwDsc
impl Display for DwLle
impl Display for DwChildren
impl Display for DwAt
impl Display for DwForm
impl Display for DwMacro
impl Display for DwOp
impl Display for DwAddr
impl Display for DwCc
impl Display for DwDs
impl Display for DwDefaulted
impl Display for Error
impl<I> Display for Decompositions<I> where
I: Clone + Iterator<Item = char>,
I: Clone + Iterator<Item = char>,
impl<I> Display for Recompositions<I> where
I: Clone + Iterator<Item = char>,
I: Clone + Iterator<Item = char>,
impl<A> Display for ArrayVec<A> where
A: Array,
<A as Array>::Item: Display,
A: Array,
<A as Array>::Item: Display,
impl<A> Display for TinyVec<A> where
A: Array,
<A as Array>::Item: Display,
A: Array,
<A as Array>::Item: Display,
impl Display for Error
impl Display for Aborted
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impl<T> Display for ReuniteError<T>
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impl<T, Item> Display for ReuniteError<T, Item>
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impl Display for SpawnError
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impl Display for TryRecvError
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impl<T> Display for TrySendError<T>
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impl Display for Canceled
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impl Display for SendError
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impl Display for EnterError
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impl Display for FromHexError
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impl Display for SignatureError
impl Display for Error
impl<T, E> Display for TrieError<T, E> where
E: MaybeDebug,
T: MaybeDebug,
E: MaybeDebug,
T: MaybeDebug,
impl<HO, CE> Display for Error<HO, CE> where
CE: Error,
HO: Debug,
CE: Error,
HO: Debug,
impl<'a, I> Display for Format<'a, I> where
I: Iterator,
<I as Iterator>::Item: Display,
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I: Iterator,
<I as Iterator>::Item: Display,
impl<'a, I, F> Display for FormatWith<'a, I, F> where
F: FnMut(<I as Iterator>::Item, &mut dyn FnMut(&dyn Display)) -> Result<(), Error>,
I: Iterator,
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F: FnMut(<I as Iterator>::Item, &mut dyn FnMut(&dyn Display)) -> Result<(), Error>,
I: Iterator,
impl<L, R> Display for Either<L, R> where
L: Display,
R: Display,
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L: Display,
R: Display,
impl Display for MultiSigner
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impl<Block> Display for BlockId<Block> where
Block: Block,
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Block: Block,