Struct Error 

pub struct Error<E> { /* private fields */ }

Encoding error.

Implementations

impl<E> Error<E>

pub fn message<T>(msg: T) -> Error<E>

where T: Display,

Construct an error with a generic message.

With feature "alloc" any type T: Display is accepted which allows formatted strings. Otherwise only a &'static str can be used as a message.

pub fn write(e: E) -> Error<E>

A write error happened.

pub fn custom<T>(err: T) -> Error<E>

where T: Error + Send + Sync + 'static,

A custom error.

Requires feature "alloc".

pub fn with_message<T>(self, msg: T) -> Error<E>

where T: Display,

Add a message to this error value.

With feature "alloc" any type T: Display is accepted which allows formatted strings. Otherwise only a &'static str can be used as a message.

pub fn is_message(&self) -> bool

pub fn is_write(&self) -> bool

pub fn is_custom(&self) -> bool

Trait Implementations

impl<E> Debug for Error<E>

where E: Debug,

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

Formats the value using the given formatter.

impl<E> Display for Error<E>

where E: Display,

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

Formats the value using the given formatter.

impl<E> Error for Error<E>

where E: Error + 'static,

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.