Struct MultiErrors 

pub struct MultiErrors<E = Error> { /* private fields */ }

A collection of errors that enables continuing work while collecting failures.

This type implements the “error parameter” pattern: instead of short-circuiting on the first error, processing continues and errors are accumulated. The caller can inspect the collection afterward to determine whether all operations succeeded.

Ergonomic Result handling

collect_result lets you process a Result<T, E> while keeping the happy path dominant:

use vtcode_commons::MultiErrors;
let mut errors: MultiErrors<String> = MultiErrors::new();
let value: Option<i32> = errors.collect_result("42".parse::<i32>().map_err(|e| e.to_string()));
assert_eq!(value, Some(42));

Composing with traditional error handling

Use ok or to_anyhow to convert back into a traditional Result.

Implementations

impl<E> MultiErrors<E>

pub fn new() -> MultiErrors<E>

Create an empty error collection.

pub fn push(&mut self, error: E)

Add a single error to the collection.

pub fn is_empty(&self) -> bool

Returns true if no errors have been collected.

pub fn len(&self) -> usize

Returns the number of collected errors.

pub fn as_slice(&self) -> &[E]

Returns a slice of all collected errors.

pub fn iter(&self) -> Iter<'_, E>

Returns an iterator over the collected errors.

pub fn ok(self) -> Result<(), MultiErrors<E>>

Convert into Result<()> — succeeds if no errors were collected.

pub fn clear(&mut self)

Remove all errors from the collection.

pub fn collect_result<T, F>(&mut self, result: Result<T, F>) -> Option<T>

where F: Into<E>,

Process a Result, returning the success value or collecting the error.

This is the key ergonomic method — it keeps the happy path as the primary flow while silently collecting errors for later inspection.

pub fn to_anyhow(&self) -> Error

where E: Display,

Convert into an anyhow::Error for use with traditional error handling.

Trait Implementations

impl<E> Clone for MultiErrors<E>

where E: Clone,

fn clone(&self) -> MultiErrors<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E> Debug for MultiErrors<E>

where E: Debug,

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

Formats the value using the given formatter.

impl<E> Default for MultiErrors<E>

fn default() -> MultiErrors<E>

Returns the “default value” for a type.

impl<'de, E> Deserialize<'de> for MultiErrors<E>

where E: Deserialize<'de>,

fn deserialize<D>( deserializer: D, ) -> Result<MultiErrors<E>, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<E> Display for MultiErrors<E>

where E: Display,

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

Formats the value using the given formatter.

impl<E> Error for MultiErrors<E>

where E: Error + 'static,

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> From<Vec<E>> for MultiErrors<E>

fn from(errors: Vec<E>) -> MultiErrors<E>

Converts to this type from the input type.

impl<E> IntoIterator for MultiErrors<E>

type Item = E

The type of the elements being iterated over.

type IntoIter = IntoIter<E>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <MultiErrors<E> as IntoIterator>::IntoIter

Creates an iterator from a value.

impl<E> Serialize for MultiErrors<E>

where E: Serialize,

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.