Trait std::error::Error
[−]
[src]
pub trait Error: Debug + Display + Reflect { fn description(&self) -> &str; fn cause(&self) -> Option<&Error> { ... } }
Base functionality for all errors in Rust.
Required Methods
fn description(&self) -> &str
A short description of the error.
The description should not contain newlines or sentence-ending punctuation, to facilitate embedding in larger user-facing strings.
Provided Methods
Methods
impl Error + 'static
1.3.0fn is<T: Error + 'static>(&self) -> bool
Returns true if the boxed type is the same as T
1.3.0fn downcast_ref<T: Error + 'static>(&self) -> Option<&T>
Returns some reference to the boxed value if it is of type T
, or
None
if it isn't.
1.3.0fn downcast_mut<T: Error + 'static>(&mut self) -> Option<&mut T>
Returns some mutable reference to the boxed value if it is of type T
, or
None
if it isn't.
impl Error + 'static + Send
1.3.0fn is<T: Error + 'static>(&self) -> bool
Forwards to the method defined on the type Any
.
1.3.0fn downcast_ref<T: Error + 'static>(&self) -> Option<&T>
Forwards to the method defined on the type Any
.
1.3.0fn downcast_mut<T: Error + 'static>(&mut self) -> Option<&mut T>
Forwards to the method defined on the type Any
.
impl Error + 'static + Send + Sync
1.3.0fn is<T: Error + 'static>(&self) -> bool
Forwards to the method defined on the type Any
.
1.3.0fn downcast_ref<T: Error + 'static>(&self) -> Option<&T>
Forwards to the method defined on the type Any
.
1.3.0fn downcast_mut<T: Error + 'static>(&mut self) -> Option<&mut T>
Forwards to the method defined on the type Any
.
impl Error
1.3.0fn downcast<T: Error + 'static>(self: Box<Self>) -> Result<Box<T>, Box<Error>>
Attempt to downcast the box to a concrete type.
impl Error + Send
1.3.0fn downcast<T: Error + 'static>(self: Box<Self>) -> Result<Box<T>, Box<Error + Send>>
Attempt to downcast the box to a concrete type.
impl Error + Send + Sync
1.3.0fn downcast<T: Error + 'static>(self: Box<Self>) -> Result<Box<T>, Box<Self>>
Attempt to downcast the box to a concrete type.
Implementors
impl Error for ParseBoolError
impl Error for Utf8Error
impl Error for ParseIntError
impl Error for ParseFloatError
impl Error for FromUtf8Error
impl Error for FromUtf16Error
impl Error for ParseError
impl<T: Error> Error for Box<T>
impl Error for VarError
impl Error for JoinPathsError
impl Error for NulError
impl Error for IntoStringError
impl<W: Reflect + Send + Debug> Error for IntoInnerError<W>
impl Error for Error
impl Error for CharsError
impl Error for AddrParseError
impl Error for StripPrefixError
impl<T: Send + Reflect> Error for SendError<T>
impl<T: Send + Reflect> Error for TrySendError<T>
impl Error for RecvError
impl Error for TryRecvError
impl Error for SystemTimeError
impl<T: Reflect> Error for PoisonError<T>
impl<T: Reflect> Error for TryLockError<T>