#[repr(transparent)]pub struct Error { /* private fields */ }
Expand description
A generic error capable of representing various error domains (types).
Implementations
sourceimpl Error
impl Error
sourcepub fn new<T: ErrorDomain>(error: T, message: &str) -> Error
pub fn new<T: ErrorDomain>(error: T, message: &str) -> Error
Creates an error with supplied error enum variant and message.
sourcepub fn is<T: ErrorDomain>(&self) -> bool
pub fn is<T: ErrorDomain>(&self) -> bool
Checks if the error domain matches T
.
sourcepub fn matches<T: ErrorDomain>(&self, err: T) -> bool
pub fn matches<T: ErrorDomain>(&self, err: T) -> bool
Checks if the error matches the specified domain and error code.
sourcepub fn kind<T: ErrorDomain>(&self) -> Option<T>
pub fn kind<T: ErrorDomain>(&self) -> Option<T>
Tries to convert to a specific error enum.
Returns Some
if the error belongs to the enum’s error domain and
None
otherwise.
Examples
ⓘ
if let Some(file_error) = error.kind::<FileError>() {
match file_error {
FileError::Exist => ...
FileError::Isdir => ...
...
}
}
Trait Implementations
sourceimpl Error for Error
impl Error for Error
1.30.0 · 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
1.0.0 · sourcefn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
sourceimpl From<Infallible> for Error
impl From<Infallible> for Error
sourcefn from(e: Infallible) -> Self
fn from(e: Infallible) -> Self
Converts to this type from the input type.
sourceimpl Ord for Error
impl Ord for Error
1.21.0 · sourceconst fn max(self, other: Self) -> Self
const fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
1.21.0 · sourceconst fn min(self, other: Self) -> Self
const fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
1.50.0 · sourceconst fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
const fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: PartialOrd<Self>,
Restrict a value to a certain interval. Read more
sourceimpl PartialOrd<Error> for Error
impl PartialOrd<Error> for Error
sourcefn partial_cmp(&self, other: &Error) -> Option<Ordering>
fn partial_cmp(&self, other: &Error) -> Option<Ordering>
1.0.0 · sourceconst fn le(&self, other: &Rhs) -> bool
const fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moresourceimpl StaticType for Error
impl StaticType for Error
sourcefn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self
.impl Eq for Error
impl Send for Error
impl StructuralEq for Error
impl StructuralPartialEq for Error
impl Sync for Error
Auto Trait Implementations
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> StaticTypeExt for Twhere
T: StaticType,
impl<T> StaticTypeExt for Twhere
T: StaticType,
sourcefn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.
sourceimpl<T> ToClosureReturnValue for Twhere
T: ToValue,
impl<T> ToClosureReturnValue for Twhere
T: ToValue,
fn to_closure_return_value(&self) -> Option<Value>
sourceimpl<T> ToSendValue for Twhere
T: Send + ToValue + ?Sized,
impl<T> ToSendValue for Twhere
T: Send + ToValue + ?Sized,
sourcefn to_send_value(&self) -> SendValue
fn to_send_value(&self) -> SendValue
Returns a
SendValue
clone of self
.