pub enum QueryEntityError {
QueryDoesNotMatch(Entity),
NoSuchEntity(Entity),
AliasedMutability(Entity),
}
Expand description
An error that occurs when retrieving a specific Entity
’s query result from Query
or QueryState
.
Variants§
QueryDoesNotMatch(Entity)
The given Entity
’s components do not match the query.
Either it does not have a requested component, or it has a component which the query filters out.
NoSuchEntity(Entity)
The given Entity
does not exist.
AliasedMutability(Entity)
The Entity
was requested mutably more than once.
See QueryState::get_many_mut
for an example.
Trait Implementations§
Source§impl Clone for QueryEntityError
impl Clone for QueryEntityError
Source§fn clone(&self) -> QueryEntityError
fn clone(&self) -> QueryEntityError
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreSource§impl Debug for QueryEntityError
impl Debug for QueryEntityError
Source§impl Display for QueryEntityError
impl Display for QueryEntityError
Source§impl Error for QueryEntityError
impl Error for QueryEntityError
1.30.0 · Source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
Returns the lower-level source of this error, if any. Read more
1.0.0 · Source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
Source§impl PartialEq for QueryEntityError
impl PartialEq for QueryEntityError
impl Copy for QueryEntityError
impl Eq for QueryEntityError
impl StructuralPartialEq for QueryEntityError
Auto Trait Implementations§
impl Freeze for QueryEntityError
impl RefUnwindSafe for QueryEntityError
impl Send for QueryEntityError
impl Sync for QueryEntityError
impl Unpin for QueryEntityError
impl UnwindSafe for QueryEntityError
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.