Trait cocaine::protocol::Flatten

pub trait Flatten {
    type Item;
    fn flatten(self) -> Result<Self::Item, Error>;
}

An extension trait for results, that contain error types itself, to be able to flatten the result of deserialization and protocol errors.

For example when deserializing a Primitive result either deserialization or service error can occur, which results in Result<Result<T, protocol::Error>, Error> type. To avoid explicit double matching the inner result can be flatten into the outer one.

Associated Types

type Item

The success value type.

Required Methods

fn flatten(self) -> Result<Self::Item, Error>

Flattens the inner protocol, possibly containing an error type into the common result type.

Implementations on Foreign Types

impl<T, E> Flatten for Result<Result<T, E>, Error> where     E: Into<Error>,

type Item = T

fn flatten(self) -> Result<Self::Item, Error>

impl<T> Flatten for Result<Streaming<T>, Error>

type Item = Option<T>

fn flatten(self) -> Result<Self::Item, Error>

Implementors