Trait mailpot::ChainedError

pub trait ChainedError: Error + Send + 'static {
    type ErrorKind;

    // Required methods
    fn from_kind(kind: Self::ErrorKind) -> Self
       where Self: Sized;
    fn with_chain<E, K>(error: E, kind: K) -> Self
       where Self: Sized,
             E: Error + Send + 'static,
             K: Into<Self::ErrorKind>;
    fn kind(&self) -> &Self::ErrorKind;
    fn iter(&self) -> Iter<'_>;
    fn backtrace(&self) -> Option<&()>;
    fn chain_err<F, EK>(self, error: F) -> Self
       where F: FnOnce() -> EK,
             EK: Into<Self::ErrorKind>;

    // Provided method
    fn display_chain<'a>(&'a self) -> DisplayChain<'a, Self> { ... }
}

This trait is implemented on all the errors generated by the error_chain macro.

Required Associated Types

type ErrorKind

Associated kind type.

Required Methods

fn from_kind(kind: Self::ErrorKind) -> Selfwhere Self: Sized,

Constructs an error from a kind, and generates a backtrace.

fn with_chain<E, K>(error: E, kind: K) -> Selfwhere Self: Sized, E: Error + Send + 'static, K: Into<Self::ErrorKind>,

Constructs a chained error from another error and a kind, and generates a backtrace.

fn kind(&self) -> &Self::ErrorKind

Returns the kind of the error.

fn iter(&self) -> Iter<'_>

Iterates over the error chain.

fn backtrace(&self) -> Option<&()>

Returns the backtrace associated with this error.

fn chain_err<F, EK>(self, error: F) -> Selfwhere F: FnOnce() -> EK, EK: Into<Self::ErrorKind>,

Extends the error chain with a new entry.

Provided Methods

fn display_chain<'a>(&'a self) -> DisplayChain<'a, Self>

Returns an object which implements Display for printing the full context of this error.

The full cause chain and backtrace, if present, will be printed.

Implementors

impl ChainedError for Error

type ErrorKind = ErrorKind