pub struct LoadTransformAndSave<L: AssetLoader, T: AssetTransformer<AssetInput = L::Asset>, S: AssetSaver<Asset = T::AssetOutput>> { /* private fields */ }
Expand description

A flexible Process implementation that loads the source Asset using the L AssetLoader, then transforms the L asset into an S AssetSaver asset using the T AssetTransformer, and lastly saves the asset using the S AssetSaver.

When creating custom processors, it is generally recommended to use the LoadTransformAndSave Process implementation, as it encourages you to separate your code into an AssetLoader capable of loading assets without processing enabled, an AssetTransformer capable of converting from an L asset to an S asset, and an AssetSaver that allows you save any S asset. However you can also implement Process directly if LoadTransformAndSave feels limiting or unnecessary.

This uses LoadTransformAndSaveSettings to configure the processor.

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impl<L: AssetLoader, T: AssetTransformer<AssetInput = L::Asset>, S: AssetSaver<Asset = T::AssetOutput>> LoadTransformAndSave<L, T, S>

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pub fn new(transformer: T, saver: S) -> Self

Trait Implementations§

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impl<Loader: AssetLoader, T: AssetTransformer<AssetInput = Loader::Asset>, Saver: AssetSaver<Asset = T::AssetOutput>> Process for LoadTransformAndSave<Loader, T, Saver>

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type Settings = LoadTransformAndSaveSettings<<Loader as AssetLoader>::Settings, <T as AssetTransformer>::Settings, <Saver as AssetSaver>::Settings>

The configuration / settings used to process the asset. This will be stored in the AssetMeta and is user-configurable per-asset.
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type OutputLoader = <Saver as AssetSaver>::OutputLoader

The AssetLoader that will be used to load the final processed asset.
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fn process<'a>( &'a self, context: &'a mut ProcessContext<'_>, meta: AssetMeta<(), Self>, writer: &'a mut Writer ) -> BoxedFuture<'a, Result<<Self::OutputLoader as AssetLoader>::Settings, ProcessError>>

Processes the asset stored on context in some way using the settings stored on meta. The results are written to writer. The final written processed asset is loadable using Process::OutputLoader. This load will use the returned AssetLoader::Settings.

Auto Trait Implementations§

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impl<L, T, S> RefUnwindSafe for LoadTransformAndSave<L, T, S>

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impl<L, T, S> Send for LoadTransformAndSave<L, T, S>

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impl<L, T, S> Sync for LoadTransformAndSave<L, T, S>

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impl<L, T, S> Unpin for LoadTransformAndSave<L, T, S>
where S: Unpin, T: Unpin,

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impl<L, T, S> UnwindSafe for LoadTransformAndSave<L, T, S>
where S: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

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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 + Send + Sync>

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<P> ErasedProcessor for P
where P: Process,

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fn process<'a>( &'a self, context: &'a mut ProcessContext<'_>, meta: Box<dyn AssetMetaDyn>, writer: &'a mut (dyn AsyncWrite + Send + Sync + Unpin + 'static) ) -> Pin<Box<dyn Future<Output = Result<Box<dyn AssetMetaDyn>, ProcessError>> + Send + 'a>>

Type-erased variant of Process::process.
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fn deserialize_meta( &self, meta: &[u8] ) -> Result<Box<dyn AssetMetaDyn>, DeserializeMetaError>

Deserialized meta as type-erased AssetMeta, operating under the assumption that it matches the meta for the underlying Process impl.
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fn default_meta(&self) -> Box<dyn AssetMetaDyn>

Returns the default type-erased AssetMeta for the underlying Process impl.
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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, 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> 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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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> Settings for T
where T: 'static + Send + Sync,