Struct TryReducerError

pub struct TryReducerError;

Repeat parsers can be customized with a custom try reduce function, see the TryReducer trait. This error will be used for reducers that return Option<()> or bool.

Reducers that return Result<(),E> will use the E from the result, and reducers that return () will never fail.

Trait Implementations

impl Clone for TryReducerError

fn clone(&self) -> TryReducerError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TryReducerError

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

Formats the value using the given formatter.

impl Display for TryReducerError

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

Formats the value using the given formatter.

impl Error for TryReducerError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl<'a, Acc, T, F, I: ?Sized> TryReducer<'a, Acc, T, BoolReducer, TryReducerError, Acc, I> for F

where F: Fn(&mut Acc, T) -> bool,

fn try_reduce(&self, acc: &mut Acc, val: T) -> Result<(), TryReducerError>

fn finalize(&self, acc: Acc, _orig_input: &'a I, _new_input: &'a I) -> Acc

impl<'a, Acc, T, F, I: ?Sized> TryReducer<'a, Acc, T, OptionReducer, TryReducerError, Acc, I> for F

where F: Fn(&mut Acc, T) -> Option<()>,

fn try_reduce(&self, acc: &mut Acc, val: T) -> Result<(), TryReducerError>

fn finalize(&self, acc: Acc, _orig_input: &'a I, _new_input: &'a I) -> Acc

impl Copy for TryReducerError