Struct ErrorWithSource

pub struct ErrorWithSource<This, Source> {
    pub this: This,
    pub source: Source,
}

An Error with a source Error.

This is useful for constructing ad-hoc chains of errors.

Fields

this: This

The current error.

Note that calling Error::source on an ErrorWithSource will not call Error::source on this; source will always be returned instead.

source: Source

The error that caused the current error.

This value will be returned by ErrorWithSource’s Error::source and Error::cause implementations. Note that the latter is deprecated.

Trait Implementations

impl<This: Debug, Source: Debug> Debug for ErrorWithSource<This, Source>

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

Formats the value using the given formatter.

impl<This, Source> Display for ErrorWithSource<This, Source>

where This: Display,

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

Formats the value using the given formatter.

impl<This, Source> Error for ErrorWithSource<This, Source>

where This: Display + Debug, Source: Error + 'static,

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

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

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

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

fn description(&self) -> &str

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

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.