Enum RepositoryError 

#[non_exhaustive]
pub enum RepositoryError {
    MessageNotFound(MessageId),
    ParentNotFound(MessageId),
    Cycle(MessageId),
    InvalidReplacement(MessageId),
}

An operation that would corrupt the tree. Upstream reports these as internal-bug exceptions; here the repository is left unchanged.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MessageNotFound(MessageId)

No message has this id.

ParentNotFound(MessageId)

No message has the given parent id.

Cycle(MessageId)

The update would make a message its own ancestor.

InvalidReplacement(MessageId)

The replacement is the deleted message or one of its descendants.

Trait Implementations

impl Clone for RepositoryError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RepositoryError

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

Formats the value using the given formatter.

impl Display for RepositoryError

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

Formats the value using the given formatter.

impl Eq for RepositoryError

impl Error for RepositoryError

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 From<RepositoryError> for RuntimeError

fn from(error: RepositoryError) -> Self

Converts to this type from the input type.

impl PartialEq for RepositoryError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RepositoryError