Enum MaybeTerminatedError

pub enum MaybeTerminatedError<T = ()> {
    Done(T),
    Terminated(Termination),
    Error(Error),
}

Return type for functions that either return a value, terminate early or error

Variants

Done(T)

The operation finished with a return value

Terminated(Termination)

The operation was terminated early

Error(Error)

The operation failed

Implementations

impl<T> MaybeTerminatedError<T>

pub fn unwrap(self) -> T

Trait Implementations

impl<T: Debug> Debug for MaybeTerminatedError<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> From<MaybeTerminated<T>> for MaybeTerminatedError<T>

fn from(value: MaybeTerminated<T>) -> Self

Converts to this type from the input type.

impl<T> From<Result<T, Error>> for MaybeTerminatedError<T>

fn from(value: Result<T>) -> Self

Converts to this type from the input type.

impl<T> FromResidual<MaybeTerminated<Infallible>> for MaybeTerminatedError<T>

fn from_residual(residual: MaybeTerminated<Infallible>) -> Self

🔬This is a nightly-only experimental API. (try_trait_v2)

Constructs the type from a compatible Residual type.

impl<T> FromResidual<MaybeTerminatedError<Infallible>> for MaybeTerminatedError<T>

fn from_residual(residual: <Self as Try>::Residual) -> Self

🔬This is a nightly-only experimental API. (try_trait_v2)

Constructs the type from a compatible Residual type.

impl<T, E> FromResidual<Result<Infallible, E>> for MaybeTerminatedError<T>

where E: Into<Error>,

fn from_residual(residual: Result<Infallible, E>) -> Self

🔬This is a nightly-only experimental API. (try_trait_v2)

Constructs the type from a compatible Residual type.

impl<T> Try for MaybeTerminatedError<T>

type Output = T

🔬This is a nightly-only experimental API. (try_trait_v2)

The type of the value produced by ? when not short-circuiting.

type Residual = MaybeTerminatedError<Infallible>

🔬This is a nightly-only experimental API. (try_trait_v2)

The type of the value passed to FromResidual::from_residual as part of ? when short-circuiting.

fn from_output(output: Self::Output) -> Self

🔬This is a nightly-only experimental API. (try_trait_v2)

Constructs the type from its Output type.

fn branch(self) -> ControlFlow<Self::Residual, Self::Output>

🔬This is a nightly-only experimental API. (try_trait_v2)

Used in ? to decide whether the operator should produce a value (because this returned ControlFlow::Continue) or propagate a value back to the caller (because this returned ControlFlow::Break).