Enum byte_fmt::eval::ApplyResult

pub enum ApplyResult<V = Vec<u8, Global>> {
    NoValue,
    Value(V),
    Err(Error),
}

Utility that impl’s try for both None and Err Semantically the None value means the caller has to decide whether to continue.

Variants

NoValue

Value(V)

Err(Error)

Implementations

impl<V> ApplyResult<V>

pub fn map<X>(self, f: impl FnOnce(V) -> X) -> ApplyResult<X>

pub fn into_ok(self) -> Result<Option<V>, Error>

pub fn into_opt(self) -> Option<Result<V, Error>>

pub fn arg_err<X>( args: impl IntoIterator<Item = X>, expect: &str ) -> ApplyResult<V>where X: AsRef<[u8]>,

pub fn or_else(self, map: impl FnOnce() -> ApplyResult<V>) -> ApplyResult<V>

pub fn require(self, msg: &'static str) -> ApplyResult<V>

pub fn context<C>(self, context: C) -> ApplyResult<V>where C: Display + Send + Sync + 'static,

Trait Implementations

impl<V> Debug for ApplyResult<V>where V: Debug,

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

Formats the value using the given formatter.

impl<V, E> From<Option<Result<V, E>>> for ApplyResult<V>where E: Into<Error>,

fn from(v: Option<Result<V, E>>) -> ApplyResult<V>

Converts to this type from the input type.

impl<V> From<Option<V>> for ApplyResult<V>

fn from(value: Option<V>) -> ApplyResult<V>

Converts to this type from the input type.

impl<V> From<Result<V, Error>> for ApplyResult<V>

fn from(v: Result<V, Error>) -> ApplyResult<V>

Converts to this type from the input type.

impl<V> From<V> for ApplyResult<V>

fn from(value: V) -> ApplyResult<V>

Converts to this type from the input type.

impl<V> FromResidual<ApplyResult<V>> for ApplyResult<V>

fn from_residual(residual: ApplyResult<V>) -> ApplyResult<V>

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

Constructs the type from a compatible Residual type.

impl<V> FromResidual<Option<Infallible>> for ApplyResult<V>

fn from_residual(_residual: Option<Infallible>) -> ApplyResult<V>

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

Constructs the type from a compatible Residual type.

impl<V, E> FromResidual<Result<Infallible, E>> for ApplyResult<V>where E: Into<Error>,

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

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

Constructs the type from a compatible Residual type.

impl<V> Try for ApplyResult<V>

type Output = V

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

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

type Residual = ApplyResult<V>

🔬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: <ApplyResult<V> as Try>::Output) -> ApplyResult<V>

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

Constructs the type from its Output type.

fn branch( self ) -> ControlFlow<<ApplyResult<V> as Try>::Residual, <ApplyResult<V> as Try>::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).