Struct ErrorMessageChained 

pub struct ErrorMessageChained { /* private fields */ }

An owned error message with an optional source error.

Implementations

impl ErrorMessageChained

pub fn new<M, E>(ctx: M, source: E) -> Self

where M: Into<ErrorMessage>, E: StdError + Send + Sync + 'static,

Creates a message error with a source.

pub const fn empty() -> Self

Creates an empty message error without a source.

pub const fn from_bstr(msg: ByteString) -> Self

Creates a message error without a source from a ByteString.

pub const fn from_static(msg: &'static str) -> Self

Creates a message error without a source from a static string.

pub fn is_empty(&self) -> bool

Returns true if the message is empty.

pub fn as_str(&self) -> &str

Returns the message as a string slice.

pub fn as_bstr(&self) -> &ByteString

Returns the message as a ByteString.

pub fn into_string(self) -> ByteString

Converts this error into its message, the source is dropped.

pub fn with_source<E: StdError + Send + Sync + 'static>(self, source: E) -> Self

Sets the source error, replacing the current one.

Trait Implementations

impl Clone for ErrorMessageChained

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ErrorMessageChained

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

Formats the value using the given formatter.

impl Display for ErrorMessageChained

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

Formats the value using the given formatter.

impl Error for ErrorMessageChained

fn source(&self) -> Option<&(dyn StdError + '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<M: Into<ErrorMessage>> From<M> for ErrorMessageChained

fn from(value: M) -> Self

Converts to this type from the input type.