[−][src]Trait witcher::Wrapper

pub trait Wrapper<T, E> {
    pub fn pass(self) -> Result<T>;

    pub fn wrap(self, msg: &str) -> Result<T>;

    pub fn err_is<U>(&self) -> bool
    where
        U: StdError + 'static;

    pub fn retry<F>(self, max: usize, f: F) -> Result<T, E>
    where
        F: Fn(usize) -> Result<T, E>;

    pub fn retry_on<F>(self, max: usize, id: TypeId, f: F) -> Result<T, E>
    where
        F: Fn(usize) -> Result<T, E>;
}

Define the wrap function for Result types

Required methods

pub fn pass(self) -> Result<T>[src]

Pass the error through without any message. This is useful to keep compatibility without having to unwrap the error.

pub fn wrap(self, msg: &str) -> Result<T>[src]

Wrap the error providing the ability to add more context

pub fn err_is<U>(&self) -> bool where
    U: StdError + 'static, [src]

Check if there is an error and the err is the given error type

pub fn retry<F>(self, max: usize, f: F) -> Result<T, E> where
    F: Fn(usize) -> Result<T, E>, [src]

Retry the given function when we have an error max number of times.

pub fn retry_on<F>(self, max: usize, id: TypeId, f: F) -> Result<T, E> where
    F: Fn(usize) -> Result<T, E>, [src]

Retry the given function when we have the concreate error U max number of times.

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Implementors

impl<T, E> Wrapper<T, E> for Result<T, E> where
    E: StdError + Send + Sync + 'static, [src]

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