1.0.0[][src]Trait validators::prelude::validators_prelude::fmt::Display

pub trait Display {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>;
}

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, }));
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Trait Implementations

impl Trait for dyn Display + 'static + Send

impl Trait for dyn Display + 'static + Sync

impl Trait for dyn Display + 'static + Send + Sync

Implementations on Foreign Types

impl<'_, T> Display for RwLockWriteGuard<'_, T> where
    T: Display + ?Sized
[src]

impl Display for Error[src]

impl<T> Display for PoisonError<T>[src]

impl<'_, T> Display for RwLockReadGuard<'_, T> where
    T: Display + ?Sized
[src]

impl Display for SocketAddrV6[src]

impl<T> Display for TryLockError<T>[src]

impl Display for Backtrace[src]

impl Display for FromVecWithNulError[src]

impl<T> Display for SendError<T>[src]

impl Display for AccessError[src]

impl Display for RecvError[src]

impl<W> Display for IntoInnerError<W>[src]

impl Display for VarError[src]

impl<T> Display for TrySendError<T>[src]

impl Display for TryRecvError[src]

impl<'_> Display for Display<'_>[src]

impl Display for RecvTimeoutError[src]

impl Display for AddrParseError[src]

impl Display for ExitStatus[src]

impl<'_, T> Display for MutexGuard<'_, T> where
    T: Display + ?Sized
[src]

impl Display for SocketAddrV4[src]

impl Display for StripPrefixError[src]

impl Display for IntoStringError[src]

impl Display for JoinPathsError[src]

impl Display for NulError[src]

impl Display for SystemTimeError[src]

impl Display for FromBytesWithNulError[src]

impl Display for SocketAddr[src]

impl Display for EscapeDefault[src]

impl Display for EscapeUnicode[src]

impl Display for NonZeroU16[src]

impl Display for ParseIntError[src]

impl Display for NonZeroU8[src]

impl Display for u64[src]

impl Display for f32[src]

impl Display for i32[src]

impl<T> Display for Wrapping<T> where
    T: Display
[src]

impl Display for Infallible[src]

impl Display for Utf8Error[src]

impl Display for f64[src]

impl Display for DecodeUtf16Error[src]

impl Display for NonZeroUsize[src]

impl Display for NonZeroI32[src]

impl<'_, T> Display for &'_ mut T where
    T: Display + ?Sized
[src]

impl Display for BorrowError[src]

impl Display for NonZeroU64[src]

impl Display for ParseFloatError[src]

impl<'a> Display for EscapeDefault<'a>[src]

impl<'a> Display for EscapeDebug<'a>[src]

impl Display for i128[src]

impl Display for NonZeroI16[src]

impl Display for usize[src]

impl Display for bool[src]

impl Display for NonZeroI8[src]

impl Display for EscapeDefault[src]

impl Display for Utf8Lossy[src]

impl<'_, T> Display for Ref<'_, T> where
    T: Display + ?Sized
[src]

impl Display for CharTryFromError[src]

impl Display for NonZeroI64[src]

impl<'_, T> Display for RefMut<'_, T> where
    T: Display + ?Sized
[src]

impl Display for LayoutErr[src]

impl Display for i64[src]

impl Display for ParseCharError[src]

impl Display for isize[src]

impl<'_> Display for PanicInfo<'_>[src]

impl Display for TryFromSliceError[src]

impl<'_, T> Display for &'_ T where
    T: Display + ?Sized
[src]

impl Display for ToLowercase[src]

impl Display for i8[src]

impl Display for u128[src]

impl Display for i16[src]

impl<P> Display for Pin<P> where
    P: Display
[src]

impl Display for ![src]

impl Display for NonZeroU32[src]

impl Display for BorrowMutError[src]

impl Display for NonZeroU128[src]

impl Display for TryFromIntError[src]

impl Display for ToUppercase[src]

impl Display for u16[src]

impl<'a> Display for EscapeUnicode<'a>[src]

impl Display for char[src]

impl Display for u8[src]

impl Display for AllocError[src]

impl Display for u32[src]

impl Display for EscapeDebug[src]

impl Display for NonZeroI128[src]

impl Display for str[src]

impl Display for ParseBoolError[src]

impl Display for NonZeroIsize[src]

impl<'_> Display for Location<'_>[src]

impl<T, A> Display for Box<T, A> where
    A: AllocRef,
    T: Display + ?Sized
[src]

impl Display for FromUtf8Error[src]

impl Display for TryReserveError[src]

impl<T> Display for Arc<T> where
    T: Display + ?Sized
[src]

impl<T> Display for Rc<T> where
    T: Display + ?Sized
[src]

impl Display for FromUtf16Error[src]

impl Display for DecodeKind

impl Display for DecodeError

impl Display for SpecificationError

impl<I> Display for Decompositions<I> where
    I: Clone + Iterator<Item = char>, 

impl<I> Display for Recompositions<I> where
    I: Clone + Iterator<Item = char>, 

impl<A> Display for TinyVec<A> where
    A: Array,
    <A as Array>::Item: Display

impl<'s, T> Display for SliceVec<'s, T> where
    T: Display

impl<A> Display for ArrayVec<A> where
    A: Array,
    <A as Array>::Item: Display

impl Display for Error[src]

impl Display for Number[src]

impl Display for Value[src]

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

Display a JSON value as a string.

let json = json!({ "city": "London", "street": "10 Downing Street" });

// Compact format:
//
// {"city":"London","street":"10 Downing Street"}
let compact = format!("{}", json);
assert_eq!(compact,
    "{\"city\":\"London\",\"street\":\"10 Downing Street\"}");

// Pretty format:
//
// {
//   "city": "London",
//   "street": "10 Downing Street"
// }
let pretty = format!("{:#}", json);
assert_eq!(pretty,
    "{\n  \"city\": \"London\",\n  \"street\": \"10 Downing Street\"\n}");

impl<'a> Display for Unexpected<'a>[src]

impl Display for Error[src]

impl<'a> Display for dyn Expected + 'a[src]

impl Display for PhoneNumber

impl Display for Carrier

impl Display for Extension

impl Display for Metadata

impl<'n, 'd, 'f> Display for Formatter<'n, 'd, 'f>

impl Display for NationalNumber

impl Display for Parse

impl<E> Display for Err<E> where
    E: Debug

impl<A> Display for ArrayString<A> where
    A: Array<Item = u8> + Copy
[src]

impl<T> Display for CapacityError<T>[src]

impl Display for Regex

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

Shows the original regular expression.

impl Display for Error

impl Display for Regex

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

Shows the original regular expression.

impl Display for Error

impl Display for ErrorKind

impl Display for CaseFoldError

impl Display for UnicodeWordError

impl Display for Error

impl Display for ErrorKind

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 Error

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 Error

impl Display for LazyRegex

impl Display for CachedRegex

impl Display for Error

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
[src]

impl<'a, I> Display for Format<'a, I> where
    I: Iterator,
    <I as Iterator>::Item: Display
[src]

impl<L, R> Display for Either<L, R> where
    L: Display,
    R: Display
[src]

impl Display for ErrorKind[src]

impl Display for SemVerError[src]

impl Display for Identifier[src]

impl Display for ReqParseError[src]

impl Display for Version[src]

impl Display for VersionReq[src]

impl Display for Version

impl<'input> Display for Error<'input>

impl Display for Identifier

impl<'i, R> Display for Pairs<'i, R> where
    R: RuleType
[src]

impl<R> Display for Error<R> where
    R: RuleType
[src]

impl<'i, R> Display for Pair<'i, R> where
    R: RuleType
[src]

impl Display for Error

impl Display for Url[src]

Display the serialization of this URL.

impl Display for ParseError[src]

impl<S> Display for Host<S> where
    S: AsRef<str>, 
[src]

impl Display for SyntaxViolation[src]

impl<'a> Display for PercentEncode<'a>

impl<S> Display for Ascii<S> where
    S: Display
[src]

impl<S> Display for UniCase<S> where
    S: Display
[src]

impl Display for LaunchError[src]

impl Display for LaunchErrorKind[src]

impl Display for RouteUriError[src]

impl Display for Environment[src]

impl Display for ConfigError[src]

impl<S, E, F> Display for Outcome<S, E, F>[src]

impl Display for Route[src]

impl Display for Catcher[src]

impl<'r> Display for Request<'r>[src]

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

Pretty prints a Request. This is primarily used by Rocket's logging infrastructure.

impl Display for Limits[src]

impl Display for LoggingLevel[src]

impl Display for ContentType

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

Formats the ContentType as an HTTP Content-Type value.

Example

use rocket::http::ContentType;

let ct = format!("{}", ContentType::JSON);
assert_eq!(ct, "application/json");

impl Display for MediaType

impl<'h> Display for Header<'h>

impl<'a, P> Display for &'a (dyn UriDisplay<P> + 'a) where
    P: UriPart, 

impl Display for Method

impl<'s> Display for Uncased<'s>

impl<'a> Display for Uri<'a>

impl<'a> Display for Authority<'a>

impl<'a> Display for Absolute<'a>

impl Display for UncasedStr

impl<'a> Display for Origin<'a>

impl Display for Accept

impl<'a> Display for Error<'a>

impl<'a> Display for Position<'a>

impl<T, I, S> Display for Expected<T, I, S> where
    I: Debug,
    S: Debug,
    T: Debug

impl<I> Display for ParseErr<I> where
    I: Input,
    <I as Input>::Token: Debug,
    <I as Input>::Token: Display,
    <I as Input>::Slice: Display,
    <I as Input>::Slice: Debug,
    <I as Input>::InSlice: Display,
    <I as Input>::InSlice: Debug

impl<I> Display for ParseErr<I> where
    I: Input,
    <I as Input>::Token: Debug,
    <I as Input>::Slice: Debug,
    <I as Input>::InSlice: Debug

impl<T, I, S> Display for Expected<T, I, S> where
    I: Debug + Display,
    S: Debug + Display,
    T: Debug + Display

impl<'a, E> Display for PercentEncode<'a, E> where
    E: EncodeSet, 

impl<'a, 'c> Display for EncodedCookie<'a, 'c> where
    'c: 'a, 
[src]

impl Display for ParseError[src]

impl Display for SameSite[src]

impl<'c> Display for Cookie<'c>[src]

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

Formats the cookie self as a Set-Cookie header value.

Example

use cookie::Cookie;

let mut cookie = Cookie::build("foo", "bar")
    .path("/")
    .finish();

assert_eq!(&cookie.to_string(), "foo=bar; Path=/");

impl<'a> Display for TmFmt<'a>[src]

impl Display for SteadyTime[src]

impl Display for OutOfRangeError[src]

impl Display for ParseError[src]

impl Display for Duration[src]

impl Display for BernoulliError[src]

impl Display for ReadError[src]

impl Display for WeightedError[src]

impl Display for Error[src]

impl Display for Error[src]

impl<'a> Display for Base64Display<'a>

impl Display for DecodeError

impl Display for InvalidKeyLength

impl Display for InvalidOutputSize

impl Display for MacError

impl Display for InvalidKeyLength

impl Display for InvalidPrkLength

impl Display for InvalidLength

impl Display for Preference[src]

impl Display for ContentRange[src]

impl Display for IfRange[src]

impl Display for Host[src]

impl Display for StatusCode[src]

Formats the status code, including the canonical reason.

assert_eq!(format!("{}", ImATeapot), "418 I'm a teapot");
assert_eq!(format!("{}", Unregistered(123)),
           "123 <unknown status code>");

impl Display for CacheControl[src]

impl Display for ExtendedValue[src]

impl Display for AccessControlRequestHeaders[src]

impl Display for Method[src]

impl<'a> Display for &'a (dyn HeaderFormat + 'static + Send + Sync)[src]

impl Display for RequestUri[src]

impl Display for ContentDisposition[src]

impl Display for Connection[src]

impl Display for Expect[src]

impl Display for Encoding[src]

impl Display for AccessControlAllowMethods[src]

impl Display for AccessControlAllowOrigin[src]

impl Display for Range[src]

impl<T> Display for QualityItem<T> where
    T: Display
[src]

impl Display for Charset[src]

impl Display for ByteRangeSpec[src]

impl Display for From[src]

impl Display for Prefer[src]

impl Display for ContentEncoding[src]

impl Display for Protocol[src]

impl Display for Referer[src]

impl Display for Location[src]

impl Display for Expires[src]

impl Display for ProtocolName[src]

impl Display for ETag[src]

impl Display for Date[src]

impl Display for RangeUnit[src]

impl Display for Upgrade[src]

impl Display for HttpVersion[src]

impl Display for TransferEncoding[src]

impl Display for IfUnmodifiedSince[src]

impl Display for CacheDirective[src]

impl Display for IfNoneMatch[src]

impl Display for ContentLength[src]

impl Display for PreferenceApplied[src]

impl Display for ConnectionOption[src]

impl Display for ContentType[src]

impl Display for AccessControlExposeHeaders[src]

impl Display for Quality[src]

impl Display for ContentLanguage[src]

impl Display for MediaDesc[src]

impl Display for Origin[src]

impl<'a> Display for HeaderView<'a>[src]

impl Display for IfModifiedSince[src]

impl<'a, H> Display for HeaderFormatter<'a, H> where
    H: HeaderFormat
[src]

impl Display for StrictTransportSecurity[src]

impl Display for IfMatch[src]

impl Display for AcceptCharset[src]

impl Display for AccessControlAllowHeaders[src]

impl Display for Allow[src]

impl Display for Vary[src]

impl Display for LastModified[src]

impl Display for Accept[src]

impl Display for Pragma[src]

impl Display for AcceptRanges[src]

impl Display for ContentRangeSpec[src]

impl Display for UserAgent[src]

impl Display for AcceptEncoding[src]

impl Display for LinkValue[src]

impl Display for HttpDate[src]

impl Display for Error[src]

impl Display for AccessControlAllowCredentials[src]

impl Display for AccessControlRequestMethod[src]

impl Display for ReferrerPolicy[src]

impl Display for Server[src]

impl Display for AcceptLanguage[src]

impl Display for Headers[src]

impl Display for RelationType[src]

impl Display for EntityTag[src]

impl Display for AccessControlMaxAge[src]

impl<'a> Display for Base64Display<'a>

impl Display for DecodeError

impl<S> Display for Host<S> where
    S: AsRef<str>, 
[src]

impl Display for ParseError[src]

impl<S> Display for HostAndPort<S> where
    S: AsRef<str>, 
[src]

impl Display for Url[src]

Display the serialization of this URL.

impl Display for SyntaxViolation[src]

impl<S> Display for UniCase<S> where
    S: Display

impl Display for InvalidChunkSize[src]

impl Display for Error[src]

impl Display for Error

impl Display for LanguageTag

impl<T> Display for Mime<T> where
    T: AsRef<[(Attr, Value)]>, 
[src]

impl Display for TopLevel[src]

impl Display for Value[src]

impl Display for Attr[src]

impl Display for SubLevel[src]

impl Display for LogLevelFilter[src]

impl Display for LogLevel[src]

impl Display for SetLoggerError[src]

impl Display for ShutdownLoggerError[src]

impl Display for SetLoggerError[src]

impl Display for Level[src]

impl Display for LevelFilter[src]

impl Display for ParseLevelError[src]

impl<T> Display for Paint<T> where
    T: Display
[src]

impl Display for DatetimeParseError[src]

impl Display for Error[src]

impl Display for Datetime[src]

impl Display for Value[src]

impl Display for Error[src]

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Implementors

impl Display for Base32DecodedError[src]

impl Display for Base32Error[src]

impl Display for Base64DecodedError[src]

impl Display for Base64Error[src]

impl Display for Base64UrlDecodedError[src]

impl Display for Base64UrlError[src]

impl Display for DomainError[src]

impl Display for EmailError[src]

impl Display for HostError[src]

impl Display for HttpFtpURLError[src]

impl Display for HttpURLError[src]

impl Display for IPError[src]

impl Display for IPv4Error[src]

impl Display for IPv6Error[src]

impl Display for JSONError[src]

impl Display for LengthError[src]

impl Display for LineError[src]

impl Display for MacAddressError[src]

impl Display for NumberError[src]

impl Display for PhoneError[src]

impl Display for SignedIntegerError[src]

impl Display for TextError[src]

impl Display for UUIDError[src]

impl Display for UnsignedIntegerError[src]

impl Display for IpAddr[src]

impl Display for validators::prelude::validators_prelude::fmt::Error[src]

impl Display for Ipv4Addr[src]

impl Display for Ipv6Addr[src]

Write an Ipv6Addr, conforming to the canonical style described by RFC 5952.

impl Display for RawStr

impl Display for Status

impl Display for String[src]

impl Display for BooleanError[src]

impl Display for RegexError[src]

impl Display for validators::SemVerError[src]

impl Display for SemVerReqError[src]

impl Display for URLError[src]

impl<'_> Display for Arguments<'_>[src]

impl<'_, B> Display for Cow<'_, B> where
    B: Display + ToOwned + ?Sized,
    <B as ToOwned>::Owned: Display
[src]

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