Enum UniqueRemove 

pub enum UniqueRemove {
    AllStorages,
    MissingUnique(&'static str),
    StorageBorrow((&'static str, Borrow)),
}

Error returned by World::remove_unique and AllStorages::remove_unique.

Variants

AllStorages

AllStorages was already borrowed.

MissingUnique(&'static str)

No unique storage of this type exist.

StorageBorrow((&'static str, Borrow))

The unique storage is already borrowed.

Trait Implementations

impl Clone for UniqueRemove

fn clone(&self) -> UniqueRemove

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UniqueRemove

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

Formats the value using the given formatter.

impl Display for UniqueRemove

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

Formats the value using the given formatter.

impl Error for UniqueRemove

Available on crate feature std only.

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 UniqueRemove

fn eq(&self, other: &UniqueRemove) -> 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 Copy for UniqueRemove

impl Eq for UniqueRemove

impl StructuralPartialEq for UniqueRemove