Struct MetadataValidationError 

pub struct MetadataValidationError { /* private fields */ }

Aggregate error returned by schema-level validation APIs.

Unlike single-entry metadata accessors, schema validation can discover multiple independent issues in one pass. This type preserves all collected MetadataError values so callers can report or fix them together.

Implementations

impl MetadataValidationError

pub fn from_issue(issue: MetadataError) -> Self

Creates an aggregate validation error from one issue.

pub fn from_issues(issues: Vec<MetadataError>) -> Option<Self>

Creates an aggregate validation error from a non-empty issue list.

Returns None when issues is empty because an empty validation error has no actionable meaning.

pub fn issues(&self) -> &[MetadataError]

Returns the collected validation issues.

pub fn len(&self) -> usize

Returns the number of collected validation issues.

pub fn is_empty(&self) -> bool

Returns true when no issues are stored.

pub fn into_issues(self) -> Vec<MetadataError>

Converts this aggregate error into its collected issues.

Trait Implementations

impl Clone for MetadataValidationError

fn clone(&self) -> MetadataValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataValidationError

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

Formats the value using the given formatter.

impl Display for MetadataValidationError

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

Formats the value using the given formatter.

impl Error for MetadataValidationError

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 PartialEq for MetadataValidationError

fn eq(&self, other: &MetadataValidationError) -> 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 Eq for MetadataValidationError

impl StructuralPartialEq for MetadataValidationError