Struct hecs_schedule::QueryOne

source · [−]

pub struct QueryOne<'a, Q: Query> { /* private fields */ }

Expand description

Wraps the bulting QueryOne with a Result containing the entity and component instead of option

Implementations

source

impl<'a, Q: Query> QueryOne<'a, Q>

source

pub fn get(&mut self) -> Result<QueryItem<'_, Q>>

Get the query result, or return an error if the entity does not satisfy the query

Must be called at most once.

Panics if called more than once or if it would construct a borrow that clashes with another pre-existing borrow.

Auto Trait Implementations

impl<'a, Q> RefUnwindSafe for QueryOne<'a, Q> where
Q: RefUnwindSafe,

impl<'a, Q> Send for QueryOne<'a, Q>

impl<'a, Q> Sync for QueryOne<'a, Q>

impl<'a, Q> Unpin for QueryOne<'a, Q> where
Q: Unpin,

impl<'a, Q> UnwindSafe for QueryOne<'a, Q> where
Q: UnwindSafe,

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

source

Struct hecs_schedule::QueryOne

Implementations

impl<'a, Q: Query> QueryOne<'a, Q>

pub fn get(&mut self) -> Result<QueryItem<'_, Q>>

Auto Trait Implementations

impl<'a, Q> RefUnwindSafe for QueryOne<'a, Q> where
Q: RefUnwindSafe,

impl<'a, Q> Send for QueryOne<'a, Q>

impl<'a, Q> Sync for QueryOne<'a, Q>

impl<'a, Q> Unpin for QueryOne<'a, Q> where
Q: Unpin,

impl<'a, Q> UnwindSafe for QueryOne<'a, Q> where
Q: UnwindSafe,

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Component for T where
T: 'static + Send + Sync,

Struct hecs_schedule::QueryOne

Implementations

impl<'a, Q: Query> QueryOne<'a, Q>

pub fn get(&mut self) -> Result<QueryItem<'_, Q>>

Auto Trait Implementations

impl<'a, Q> RefUnwindSafe for QueryOne<'a, Q> where Q: RefUnwindSafe,

impl<'a, Q> Send for QueryOne<'a, Q>

impl<'a, Q> Sync for QueryOne<'a, Q>

impl<'a, Q> Unpin for QueryOne<'a, Q> where Q: Unpin,

impl<'a, Q> UnwindSafe for QueryOne<'a, Q> where Q: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Component for T where T: 'static + Send + Sync,

impl<'a, Q> RefUnwindSafe for QueryOne<'a, Q> where
Q: RefUnwindSafe,

impl<'a, Q> Unpin for QueryOne<'a, Q> where
Q: Unpin,

impl<'a, Q> UnwindSafe for QueryOne<'a, Q> where
Q: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<T> Component for T where
T: 'static + Send + Sync,