Struct ErrorList

pub struct ErrorList<E> { /* private fields */ }

The main type that holds a list of errors.

See the module-level docs and the docs for WriteErrorList.

Implementations

impl<E> ErrorList<E>

pub fn is_empty(&self) -> bool

Returns whether the error list is empty

pub fn len(&self) -> usize

Return the length of the error list

pub fn iter<'a>(&'a self) -> impl Iterator<Item = &'a E>

where E: 'a,

Iterate the error list, returning immutable references

pub fn iter_mut<'a>(&'a mut self) -> impl Iterator<Item = &'a mut E>

where E: 'a,

Iterate the error list, returning mutable references

Trait Implementations

impl<E: Debug> Debug for ErrorList<E>

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

Formats the value using the given formatter.

impl<E> Default for ErrorList<E>

fn default() -> Self

Returns the “default value” for a type.

impl<E: Error> Display for ErrorList<E>

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

Formats the value using the given formatter.

impl<E: Error> Error for ErrorList<E>

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<E: Hash> Hash for ErrorList<E>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<E> IntoIterator for ErrorList<E>

type Item = <Vec<E> as IntoIterator>::Item

The type of the elements being iterated over.

type IntoIter = <Vec<E> as IntoIterator>::IntoIter

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<E: PartialEq> PartialEq for ErrorList<E>

fn eq(&self, other: &ErrorList<E>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E> WriteErrorList<E> for ErrorList<E>

fn push(&mut self, error: E)

Add an error to the list of errors

fn subwriter<'sub, SubMapFn, SubErr: 'sub>( &'sub mut self, map_fn: SubMapFn, ) -> impl WriteErrorList<SubErr> + 'sub

where SubMapFn: FnOnce(ErrorList<SubErr>) -> E + 'sub,

Create a new mapping error writer with this as its parent

fn sublist<SubMapFn, SubErr>( &mut self, map_fn: SubMapFn, ) -> Sublist<'_, SubErr, SubMapFn, Self, E>

where SubMapFn: FnOnce(ErrorList<SubErr>) -> E,

Start a new error list with this error list as its parent

fn finish(self)

Finish this error list

impl<E: Eq> Eq for ErrorList<E>

impl<E> StructuralPartialEq for ErrorList<E>