Struct bevy_ecs::reflect::ReflectFromWorld

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pub struct ReflectFromWorld(/* private fields */);
Expand description

A struct used to operate on the reflected FromWorld trait of a type.

A ReflectFromWorld for type T can be obtained via bevy_reflect::TypeRegistration::data.

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impl ReflectFromWorld

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pub fn from_world(&self, world: &mut World) -> Box<dyn Reflect>

Constructs default reflected FromWorld from world using from_world().

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pub fn new(fns: ReflectFromWorldFns) -> Self

Create a custom implementation of ReflectFromWorld.

This is an advanced feature, useful for scripting implementations, that should not be used by most users unless you know what you are doing.

Usually you should derive Reflect and add the #[reflect(FromWorld)] bundle to generate a ReflectFromWorld implementation automatically.

See ReflectFromWorldFns for more information.

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pub fn fn_pointers(&self) -> &ReflectFromWorldFns

The underlying function pointers implementing methods on ReflectFromWorld.

This is useful when you want to keep track locally of an individual function pointer.

Calling TypeRegistry::get followed by TypeRegistration::data::<ReflectFromWorld> can be costly if done several times per frame. Consider cloning ReflectFromWorld and keeping it between frames, cloning a ReflectFromWorld is very cheap.

If you only need a subset of the methods on ReflectFromWorld, use fn_pointers to get the underlying ReflectFromWorldFns and copy the subset of function pointers you care about.

Trait Implementations§

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impl Clone for ReflectFromWorld

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fn clone(&self) -> ReflectFromWorld

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<B: Reflect + FromWorld> FromType<B> for ReflectFromWorld

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fn from_type() -> Self

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TypeData for T
where T: 'static + Send + Sync + Clone,

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ConditionalSend for T
where T: Send,