Trait ErrorExt 

pub trait ErrorExt: Sized {
    type Result<E>;
    type S: State + ?Sized;

    // Required methods
    fn build_error(self) -> Self::Result<Error<Self::S>>;
    fn erase_error(self) -> Self::Result<impl Error + Send + Sync + 'static>;
}

Extension trait for materializing or erasing an error.

Required Associated Types

type Result<E>

type S: State + ?Sized

Required Methods

fn build_error(self) -> Self::Result<Error<Self::S>>

Materializes the final Error<Self::S>.

fn erase_error(self) -> Self::Result<impl Error + Send + Sync + 'static>

Materializes and then erases the state, returning an opaque impl Error.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T, E1, S, F, L> ErrorExt for Result<T, Builder<E1, S, F, L>>

where E1: Error + Send + Sync + 'static, F: PayloadFn, S: State + ?Sized, L: Context + ?Sized,

type Result<E> = Result<T, E>

type S = S

fn build_error(self) -> Self::Result<Error<Self::S>>

fn erase_error(self) -> Self::Result<impl Error + Send + Sync + 'static>

impl<T, E1> ErrorExt for Result<T, E1>

where E1: Error + Send + Sync + 'static,

type Result<E> = Result<T, E>

type S = Stateless

fn build_error(self) -> Self::Result<Error<Self::S>>

fn erase_error(self) -> Self::Result<impl Error + Send + Sync + 'static>

impl<T, S1, S, F, L> ErrorExt for Result<T, Builder<Error<S1>, S, F, L>>

where S1: State + ?Sized, F: PayloadFn, S: State + ?Sized, L: Context + ?Sized,

type Result<E> = Result<T, E>

type S = S

fn build_error(self) -> Self::Result<Error<Self::S>>

fn erase_error(self) -> Self::Result<impl Error + Send + Sync + 'static>

impl<T, S> ErrorExt for Result<T, Error<S>>

where S: State + ?Sized,

type Result<E> = Result<T, E>

type S = S

fn build_error(self) -> Self::Result<Error<Self::S>>

fn erase_error(self) -> Self::Result<impl Error + Send + Sync + 'static>

Implementors

impl<E1, S, F, L> ErrorExt for Builder<E1, S, F, L>

where E1: Error + Send + Sync + 'static, F: PayloadFn, S: State + ?Sized, L: Context + ?Sized,

type Result<E> = E

type S = S

impl<S1, S, F, L> ErrorExt for Builder<Error<S1>, S, F, L>

where S1: State + ?Sized, F: PayloadFn, S: State + ?Sized, L: Context + ?Sized,

type Result<E> = E

type S = S

impl<S> ErrorExt for Error<S>

where S: State + ?Sized,

type Result<E> = E

type S = S