pub struct Error(pub ErrorKind, _);
Expand description
The Error type.
This tuple struct is made of two elements:
- an
ErrorKind
which is used to determine the type of the error. - An internal
State
, not meant for direct use outside oferror_chain
internals, containing:- a backtrace, generated when the error is created.
- an error chain, used for the implementation of
Error::cause()
.
Tuple Fields
0: ErrorKind
The kind of the error.
Implementations
sourceimpl Error
impl Error
sourcepub fn from_kind(kind: ErrorKind) -> Error
pub fn from_kind(kind: ErrorKind) -> Error
Constructs an error from a kind, and generates a backtrace.
sourcepub fn with_chain<E, K>(error: E, kind: K) -> Error where
E: Error + Send + 'static,
K: Into<ErrorKind>,
pub fn with_chain<E, K>(error: E, kind: K) -> Error where
E: Error + Send + 'static,
K: Into<ErrorKind>,
Constructs a chained error from another error and a kind, and generates a backtrace.
sourcepub fn with_boxed_chain<K>(error: Box<dyn Error + Send>, kind: K) -> Error where
K: Into<ErrorKind>,
pub fn with_boxed_chain<K>(error: Box<dyn Error + Send>, kind: K) -> Error where
K: Into<ErrorKind>,
Construct a chained error from another boxed error and a kind, and generates a backtrace
sourcepub fn backtrace(&self) -> Option<&Backtrace>
pub fn backtrace(&self) -> Option<&Backtrace>
Returns the backtrace associated with this error.
sourcepub fn chain_err<F, EK>(self, error: F) -> Error where
F: FnOnce() -> EK,
EK: Into<ErrorKind>,
pub fn chain_err<F, EK>(self, error: F) -> Error where
F: FnOnce() -> EK,
EK: Into<ErrorKind>,
Extends the error chain with a new entry.
sourcepub fn description(&self) -> &str
pub fn description(&self) -> &str
A short description of the error.
This method is identical to Error::description()
Trait Implementations
sourceimpl ChainedError for Error
impl ChainedError for Error
sourcefn from_kind(kind: Self::ErrorKind) -> Self
fn from_kind(kind: Self::ErrorKind) -> Self
Constructs an error from a kind, and generates a backtrace.
sourcefn with_chain<E, K>(error: E, kind: K) -> Self where
E: Error + Send + 'static,
K: Into<Self::ErrorKind>,
fn with_chain<E, K>(error: E, kind: K) -> Self where
E: Error + Send + 'static,
K: Into<Self::ErrorKind>,
Constructs a chained error from another error and a kind, and generates a backtrace.
sourcefn chain_err<F, EK>(self, error: F) -> Self where
F: FnOnce() -> EK,
EK: Into<ErrorKind>,
fn chain_err<F, EK>(self, error: F) -> Self where
F: FnOnce() -> EK,
EK: Into<ErrorKind>,
Extends the error chain with a new entry.
sourcefn display_chain(&'a self) -> DisplayChain<'a, Self>
fn display_chain(&'a self) -> DisplayChain<'a, Self>
Returns an object which implements Display
for printing the full
context of this error. Read more
sourceimpl Error for Error
impl Error for Error
sourcefn description(&self) -> &str
fn description(&self) -> &str
use the Display impl or to_string()
sourcefn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
Auto Trait Implementations
impl !RefUnwindSafe for Error
impl Send for Error
impl !Sync for Error
impl Unpin for Error
impl !UnwindSafe for Error
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more