Trait otter_api_tests::Display
1.0.0 · source · [−]Expand description
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
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
1.20.0 · sourceimpl<'_, T> Display for RwLockReadGuard<'_, T> where
T: Display + ?Sized,
impl<'_, T> Display for RwLockReadGuard<'_, T> where
T: Display + ?Sized,
1.17.0 · sourceimpl Display for FromBytesWithNulError
impl Display for FromBytesWithNulError
1.20.0 · sourceimpl<'_, T> Display for MutexGuard<'_, T> where
T: Display + ?Sized,
impl<'_, T> Display for MutexGuard<'_, T> where
T: Display + ?Sized,
sourceimpl Display for ExitStatusError
impl Display for ExitStatusError
1.7.0 · sourceimpl Display for StripPrefixError
impl Display for StripPrefixError
sourceimpl<T> Display for TryLockError<T>
impl<T> Display for TryLockError<T>
sourceimpl<T> Display for PoisonError<T>
impl<T> Display for PoisonError<T>
1.20.0 · sourceimpl<'_, T> Display for RwLockWriteGuard<'_, T> where
T: Display + ?Sized,
impl<'_, T> Display for RwLockWriteGuard<'_, T> where
T: Display + ?Sized,
1.58.0 · sourceimpl Display for FromVecWithNulError
impl Display for FromVecWithNulError
1.4.0 · sourceimpl Display for AddrParseError
impl Display for AddrParseError
1.7.0 · sourceimpl Display for IntoStringError
impl Display for IntoStringError
sourceimpl Display for FromUtf16Error
impl Display for FromUtf16Error
1.57.0 · sourceimpl Display for TryReserveError
impl Display for TryReserveError
sourceimpl Display for SenderError
impl Display for SenderError
sourceimpl<'g, T> Display for MutexGuard<'g, T> where
T: DebugIdentify,
MutexGuard<'g, RawMutex, T>: Display,
impl<'g, T> Display for MutexGuard<'g, T> where
T: DebugIdentify,
MutexGuard<'g, RawMutex, T>: Display,
sourceimpl Display for ParseFloatError
impl Display for ParseFloatError
sourceimpl Display for OutOfRangeError
impl Display for OutOfRangeError
impl Display for Ast
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
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
.
sourceimpl Display for FormattedDuration
impl Display for FormattedDuration
sourceimpl Display for Rfc3339Timestamp
impl Display for Rfc3339Timestamp
impl Display for Duration
impl Display for Duration
The format returned by this implementation is not stable and must not be relied upon.
For the purposes of this implementation, a day is exactly 24 hours and a minute is exactly 60 seconds.
sourceimpl<'a> Display for BytesOrWideString<'a>
impl<'a> Display for BytesOrWideString<'a>
sourceimpl<'a> Display for SymbolName<'a>
impl<'a> Display for SymbolName<'a>
impl<R, Offset> Display for LineInstruction<R, Offset> where
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
impl<R, Offset> Display for LineInstruction<R, Offset> where
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
impl<'a> Display for PercentEncode<'a>
impl<'a> Display for PercentEncode<'a>
sourceimpl Display for BernoulliError
impl Display for BernoulliError
sourceimpl Display for DecompressError
impl Display for DecompressError
sourceimpl<'a> Display for PasswordHash<'a>
impl<'a> Display for PasswordHash<'a>
sourceimpl Display for InvalidLengthError
impl Display for InvalidLengthError
sourceimpl Display for InvalidEncodingError
impl Display for InvalidEncodingError
sourceimpl Display for SyntaxViolation
impl Display for SyntaxViolation
sourceimpl Display for ParseRatioError
impl Display for ParseRatioError
sourceimpl Display for ParseBigIntError
impl Display for ParseBigIntError
sourceimpl<T> Display for TryFromBigIntError<T>
impl<T> Display for TryFromBigIntError<T>
sourceimpl Display for StatusCode
impl Display for StatusCode
Formats the status code, including the canonical reason.
Example
assert_eq!(format!("{}", StatusCode::OK), "200 OK");
sourceimpl Display for PathAndQuery
impl Display for PathAndQuery
sourceimpl Display for InvalidStatusCode
impl Display for InvalidStatusCode
sourceimpl Display for InvalidHeaderName
impl Display for InvalidHeaderName
sourceimpl Display for InvalidUriParts
impl Display for InvalidUriParts
sourceimpl Display for InvalidHeaderValue
impl Display for InvalidHeaderValue
sourceimpl<T> Display for DisplayValue<T> where
T: Display,
impl<T> Display for DisplayValue<T> where
T: Display,
sourceimpl Display for SetGlobalDefaultError
impl Display for SetGlobalDefaultError
sourceimpl Display for ParseLevelError
impl Display for ParseLevelError
sourceimpl Display for ParseLevelFilterError
impl Display for ParseLevelFilterError
impl<'a, K, V, S, A> Display for OccupiedError<'a, K, V, S, A> where
K: Debug,
V: Debug,
A: Allocator + Clone,
impl<'a, K, V, S, A> Display for OccupiedError<'a, K, V, S, A> where
K: Debug,
V: Debug,
A: Allocator + Clone,
sourceimpl<S> Display for HandshakeError<S> where
S: Any + Debug,
impl<S> Display for HandshakeError<S> where
S: Any + Debug,
sourceimpl Display for OpensslStringRef
impl Display for OpensslStringRef
sourceimpl Display for X509VerifyResult
impl Display for X509VerifyResult
sourceimpl Display for Asn1ObjectRef
impl Display for Asn1ObjectRef
sourceimpl Display for Asn1GeneralizedTimeRef
impl Display for Asn1GeneralizedTimeRef
sourceimpl<S> Display for HandshakeError<S> where
S: Debug,
impl<S> Display for HandshakeError<S> where
S: Debug,
sourceimpl Display for PrefixLenError
impl Display for PrefixLenError
sourceimpl Display for AddrParseError
impl Display for AddrParseError
Implementors
impl Display for Kind
impl Display for LoadError
impl Display for State
impl Display for AccountsSaveError
impl Display for ApiPieceOpError
impl Display for Fatal
impl Display for Inapplicable
impl Display for InternalError
impl Display for InvalidScopedName
impl Display for LibraryLoadError
impl Display for LinkKind
impl Display for MgmtChannelReadError
impl Display for MgmtChannelWriteError
impl Display for PieceOpErrorPartiallyProcessed
impl Display for SVGProcessingError
impl Display for SpecError
impl Display for VarError
impl Display for FlexiLoggerError
impl Display for otter_api_tests::flexi_logger::Level
impl Display for otter_api_tests::flexi_logger::LevelFilter
impl Display for DecodeError
impl Display for RoundingError
impl Display for otter_api_tests::imports::chrono::Weekday
impl Display for Tz
impl Display for Errno
impl Display for Signal
impl Display for InetAddr
impl Display for otter_api_tests::imports::nix::sys::socket::IpAddr
impl Display for SockAddr
impl Display for PwdError
impl Display for otter_api_tests::imports::regex::Error
impl Display for otter_api_tests::imports::rmp_serde::decode::Error
impl Display for otter_api_tests::imports::rmp_serde::encode::Error
impl Display for LogicOperator
impl Display for MathOperator
impl Display for otter_api_tests::imports::toml::Value
impl Display for otter_api_tests::imports::toml::ser::Error
impl Display for RecvTimeoutError
impl Display for otter_api_tests::mpsc::TryRecvError
impl Display for otter_api_tests::serde_json::Value
impl Display for otter_api_tests::shapelib::ErrorKind
impl Display for Infallible
impl Display for otter_api_tests::shapelib::IpAddr
impl Display for MgmtError
impl Display for SocketAddr
impl Display for SubstErrorKind
impl Display for ZipError
impl Display for KeyError
impl Display for otter_api_tests::shapelib::toml_de::Error
impl Display for Void
impl Display for LogicError
impl Display for RangeImpossible
impl Display for CompressionMethod
impl Display for AuthorisationError
impl Display for Hash
impl Display for otter_api_tests::bundles::Id
impl Display for Index
impl Display for NotBundle
impl Display for ZipIndex
impl Display for JoinPathsError
impl Display for otter_api_tests::fmt::Error
impl Display for PosCFromIteratorError
impl Display for otter_api_tests::imports::anyhow::Error
impl Display for otter_api_tests::imports::chrono::Duration
impl Display for FixedOffset
impl Display for NaiveDate
The Display
output of the naive date d
is the same as
d.format("%Y-%m-%d")
.
The string printed can be readily parsed via the parse
method on str
.
Example
use chrono::NaiveDate;
assert_eq!(format!("{}", NaiveDate::from_ymd(2015, 9, 5)), "2015-09-05");
assert_eq!(format!("{}", NaiveDate::from_ymd( 0, 1, 1)), "0000-01-01");
assert_eq!(format!("{}", NaiveDate::from_ymd(9999, 12, 31)), "9999-12-31");
ISO 8601 requires an explicit sign for years before 1 BCE or after 9999 CE.
assert_eq!(format!("{}", NaiveDate::from_ymd( -1, 1, 1)), "-0001-01-01");
assert_eq!(format!("{}", NaiveDate::from_ymd(10000, 12, 31)), "+10000-12-31");
impl Display for NaiveDateTime
The Display
output of the naive date and time dt
is the same as
dt.format("%Y-%m-%d %H:%M:%S%.f")
.
It should be noted that, for leap seconds not on the minute boundary, it may print a representation not distinguishable from non-leap seconds. This doesn’t matter in practice, since such leap seconds never happened. (By the time of the first leap second on 1972-06-30, every time zone offset around the world has standardized to the 5-minute alignment.)
Example
use chrono::NaiveDate;
let dt = NaiveDate::from_ymd(2016, 11, 15).and_hms(7, 39, 24);
assert_eq!(format!("{}", dt), "2016-11-15 07:39:24");
Leap seconds may also be used.
let dt = NaiveDate::from_ymd(2015, 6, 30).and_hms_milli(23, 59, 59, 1_500);
assert_eq!(format!("{}", dt), "2015-06-30 23:59:60.500");
impl Display for NaiveTime
The Display
output of the naive time t
is the same as
t.format("%H:%M:%S%.f")
.
The string printed can be readily parsed via the parse
method on str
.
It should be noted that, for leap seconds not on the minute boundary, it may print a representation not distinguishable from non-leap seconds. This doesn’t matter in practice, since such leap seconds never happened. (By the time of the first leap second on 1972-06-30, every time zone offset around the world has standardized to the 5-minute alignment.)
Example
use chrono::NaiveTime;
assert_eq!(format!("{}", NaiveTime::from_hms(23, 56, 4)), "23:56:04");
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 56, 4, 12)), "23:56:04.012");
assert_eq!(format!("{}", NaiveTime::from_hms_micro(23, 56, 4, 1234)), "23:56:04.001234");
assert_eq!(format!("{}", NaiveTime::from_hms_nano(23, 56, 4, 123456)), "23:56:04.000123456");
Leap seconds may also be used.
assert_eq!(format!("{}", NaiveTime::from_hms_milli(6, 59, 59, 1_500)), "06:59:60.500");
impl Display for otter_api_tests::imports::chrono::ParseError
impl Display for Utc
impl Display for InvalidBufferSize
impl Display for otter_api_tests::imports::digest::InvalidLength
impl Display for otter_api_tests::imports::digest::InvalidOutputSize
impl Display for MacError
impl Display for otter_api_tests::imports::env_logger::fmt::Timestamp
impl Display for otter_api_tests::imports::glob::GlobError
impl Display for Pattern
Show the original glob pattern.
impl Display for PatternError
impl Display for AllocError
impl Display for LayoutError
impl Display for TryFromSliceError
impl Display for otter_api_tests::imports::inventory::core::ascii::EscapeDefault
impl Display for BorrowError
impl Display for BorrowMutError
impl Display for CharTryFromError
impl Display for DecodeUtf16Error
impl Display for otter_api_tests::imports::inventory::core::char::EscapeDebug
impl Display for otter_api_tests::imports::inventory::core::char::EscapeDefault
impl Display for otter_api_tests::imports::inventory::core::char::EscapeUnicode
impl Display for ParseCharError
impl Display for ToLowercase
impl Display for ToUppercase
impl Display for TryFromCharError
impl Display for NonZeroI8
impl Display for NonZeroI16
impl Display for NonZeroI32
impl Display for NonZeroI64
impl Display for NonZeroI128
impl Display for NonZeroIsize
impl Display for NonZeroU8
impl Display for NonZeroU16
impl Display for NonZeroU32
impl Display for NonZeroU64
impl Display for NonZeroU128
impl Display for otter_api_tests::imports::inventory::core::num::ParseFloatError
impl Display for ParseIntError
impl Display for Utf8Lossy
impl Display for otter_api_tests::imports::log::ParseLevelError
impl Display for SetLoggerError
impl Display for ClearEnvError
impl Display for AlgAddr
impl Display for otter_api_tests::imports::nix::sys::socket::Ipv4Addr
impl Display for otter_api_tests::imports::nix::sys::socket::Ipv6Addr
impl Display for LinkAddr
impl Display for NetlinkAddr
impl Display for UnixAddr
impl Display for VsockAddr
impl Display for TimeVal
impl Display for ClockId
impl Display for FloatIsNan
impl Display for otter_api_tests::imports::otter_base::imports::serde::de::value::Error
impl Display for otter_api_tests::imports::regex::bytes::Regex
impl Display for otter_api_tests::imports::tera::Error
impl Display for otter_api_tests::imports::toml::de::Error
impl Display for Datetime
impl Display for DatetimeParseError
impl Display for UnixSocketAddr
impl Display for otter_api_tests::io::Error
impl Display for WriterPanicked
impl Display for otter_api_tests::mpsc::RecvError
impl Display for otter_api_tests::serde_json::Error
impl Display for Number
impl Display for AuthKeysManipError
impl Display for Comment
impl Display for Fingerprint
impl Display for otter_api_tests::shapelib::sshkeys::Id
impl Display for KeySpec
impl Display for MgmtKeyReport
impl Display for Nonce
impl Display for PubData
impl Display for CoordinateOverflow
impl Display for otter_api_tests::shapelib::Ipv4Addr
impl Display for otter_api_tests::shapelib::Ipv6Addr
Write an Ipv6Addr, conforming to the canonical style described by RFC 5952.
impl Display for NonZeroUsize
impl Display for otter_api_tests::shapelib::Regex
impl Display for SubstError
impl Display for TimeSpec
impl Display for TryFromIntError
impl Display for Uid
impl Display for Url
Display the serialization of this URL.