Trait vec_utils::Try

pub trait Try {
    type Ok;
    type Error;
    fn into_result(self) -> Result<Self::Ok, Self::Error>;
    fn from_error(v: Self::Error) -> Self;
    fn from_ok(v: Self::Ok) -> Self;
}

A stable version of core::ops::Try.

Associated Types

type Ok

The type of this value when viewed as successful.

type Error

The type of this value when viewed as failed.

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Required methods

fn into_result(self) -> Result<Self::Ok, Self::Error>

A return of Ok(t) means that the execution should continue normally, and the result of ? is the value t. A return of Err(e) means that execution should branch to the innermost enclosing catch, or return from the function.

fn from_error(v: Self::Error) -> Self

Wrap an error value to construct the composite result. For example, Result::Err(x) and Result::from_error(x) are equivalent.

fn from_ok(v: Self::Ok) -> Self

Wrap an OK value to construct the composite result. For example, Result::Ok(x) and Result::from_ok(x) are equivalent.

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Implementations on Foreign Types

impl<T, E> Try for Result<T, E>

type Ok = T

type Error = E

fn into_result(self) -> Result<Self::Ok, Self::Error>

fn from_error(v: Self::Error) -> Self

fn from_ok(v: Self::Ok) -> Self

impl<T> Try for Option<T>

type Ok = T

type Error = NoneError

fn into_result(self) -> Result<Self::Ok, Self::Error>

fn from_error(_v: Self::Error) -> Self

fn from_ok(v: Self::Ok) -> Self

impl<T, E> Try for Poll<Option<Result<T, E>>>

type Ok = Poll<Option<T>>

type Error = E

fn into_result(self) -> Result<Self::Ok, Self::Error>

fn from_error(v: Self::Error) -> Self

fn from_ok(v: Self::Ok) -> Self

impl<T, E> Try for Poll<Result<T, E>>

type Ok = Poll<T>

type Error = E

fn into_result(self) -> Result<Self::Ok, Self::Error>

fn from_error(e: Self::Error) -> Self

fn from_ok(x: Self::Ok) -> Self

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Implementors

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