Struct Exn 

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

An exception type that can hold an error tree and additional context.

Implementations

impl<E: Error> Exn<E>

pub fn new(error: E) -> Self

Create a new exception with the given error.

This will automatically walk the source chain of the error and add them as children frames.

See also Error::raise for a fluent way to convert an error into an Exn instance.

pub fn from_iter<T, I>(children: I, err: E) -> Self

where T: Error, I: IntoIterator, I::Item: Into<Exn<T>>,

Create a new exception with the given error and children.

pub fn raise<T: Error>(self, err: T) -> Exn<T>

Raise a new exception; this will make the current exception a child of the new one.

pub fn as_error(&self) -> &E

Return the current exception.

pub fn as_frame(&self) -> &Frame

Return the underlying exception frame.

Trait Implementations

impl<E: Error> Debug for Exn<E>

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

Formats the value using the given formatter.

impl<E: Error> Display for Exn<E>

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

Formats the value using the given formatter.

impl<E: Error> From<E> for Exn<E>

fn from(error: E) -> Self

Converts to this type from the input type.