Trait ockam_core::compat::fmt::Display
1.0.0 · source · pub trait Display {
// Required method
fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>;
}Expand description
Format trait for an empty format, {}.
Implementing this trait for a type will automatically implement the
ToString trait for the type, allowing the usage
of the .to_string() method. Prefer implementing
the Display trait for a type, rather than ToString.
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§
sourcefn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
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, }));Implementors§
impl Display for Method
impl Display for Status
impl Display for RouteError
impl Display for ErrorKind
impl Display for IpAddr
impl Display for SocketAddr
impl Display for BernoulliError
impl Display for WeightedError
impl Display for AsciiChar
impl Display for Infallible
impl Display for VarError
impl Display for RecvTimeoutError
impl Display for TryRecvError
impl Display for FromHexError
impl Display for Type
impl Display for bool
impl Display for char
impl Display for f32
impl Display for f64
impl Display for i8
impl Display for i16
impl Display for i32
impl Display for i64
impl Display for i128
impl Display for isize
impl Display for !
impl Display for str
impl Display for u8
impl Display for u16
impl Display for u32
impl Display for u64
impl Display for u128
impl Display for usize
impl Display for ockam_core::api::Error
impl Display for Id
impl Display for ErrorCode
impl Display for FlowControlId
impl Display for Address
impl Display for AddressParseError
impl Display for Any
impl Display for ockam_core::Error
impl Display for ProtocolId
impl Display for Route
impl Display for TransportMessage
impl Display for TransportType
impl Display for ockam_core::compat::io::Error
impl Display for WriterPanicked
impl Display for AddrParseError
impl Display for Ipv4Addr
impl Display for Ipv6Addr
Write an Ipv6Addr, conforming to the canonical style described by RFC 5952.