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HandleDeserializeProcessor

Struct HandleDeserializeProcessor 

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pub struct HandleDeserializeProcessor<'a> {
    pub load_from_path: &'a mut dyn LoadFromPath,
}
Expand description

A ReflectDeserializerProcessor that manually deserializes Handle and UntypedHandle, and passes through for all other types.

Handles cannot be deserialized normally since it contains lots of ephemeral information (e.g., the AssetId of the asset being referenced). This processor deserializes the identifying and stable parts of the handle (usually serialized by HandleSerializeProcessor), and triggers the load of that handle.

Use HandleSerializeProcessor to serialize data for this processor.

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§load_from_path: &'a mut dyn LoadFromPath

The loader to load asset paths and retrieve their handles.

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impl ReflectDeserializerProcessor for HandleDeserializeProcessor<'_>

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fn try_deserialize<'de, D>( &mut self, registration: &TypeRegistration, registry: &TypeRegistry, deserializer: D, ) -> Result<Result<Box<dyn PartialReflect>, D>, D::Error>
where D: Deserializer<'de>,

Attempts to deserialize the value which a TypedReflectDeserializer is currently looking at, and knows the type of. Read more

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

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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>

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

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Converts &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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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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const WITNESS: W = W::MAKE

A constant of the type witness
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impl<T> Identity for T
where T: ?Sized,

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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

Proof that Self is the same type as Self::Type, provides methods for casting between Self and Self::Type.
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type Type = T

The same type as Self, used to emulate type equality bounds (T == U) with associated type equality constraints (T: Identity<Type = U>).
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fn instrument(self, span: Span) -> Instrumented<Self>

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

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