Struct Error

pub struct Error { /* private fields */ }

Available on crate feature preview1 only.

Implementations

impl Error

pub fn trap(inner: Error) -> Error

pub fn downcast(self) -> Result<Errno, Error>

pub fn downcast_ref(&self) -> Option<&Errno>

pub fn context(self, s: impl Into<String>) -> Self

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Errno> for Error

fn from(abi: Errno) -> Error

Converts to this type from the input type.

impl From<Error> for Error

fn from(error: Error) -> Error

Converts to this type from the input type.

impl From<ErrorCode> for Error

fn from(code: ErrorCode) -> Self

Converts to this type from the input type.

impl From<GuestError> for Error

fn from(err: GuestError) -> Self

Converts to this type from the input type.

impl From<ResourceTableError> for Error

fn from(err: ResourceTableError) -> Self

Converts to this type from the input type.

impl From<StreamError> for Error

fn from(err: StreamError) -> Self

Converts to this type from the input type.

impl From<TrappableError<ErrorCode>> for Error

fn from(err: FsError) -> Self

Converts to this type from the input type.

impl From<TryFromIntError> for Error

fn from(_: TryFromIntError) -> Self

Converts to this type from the input type.