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HandleLoadState

Struct HandleLoadState 

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pub struct HandleLoadState<A: Asset> { /* private fields */ }
Expand description

Combined handle and load state for convenient asset status checking.

This type wraps an asset handle together with its current loading state, allowing users to check both validity and load progress in one place.

§Example

use goud_engine::assets::{Asset, AssetHandle, AssetState, HandleLoadState};

struct Texture;
impl Asset for Texture {}

// Simulate an asset that's loading
let handle: AssetHandle<Texture> = AssetHandle::new(0, 1);
let state = HandleLoadState::new(handle, AssetState::Loading { progress: 0.5 });

assert!(state.is_loading());
assert_eq!(state.progress(), Some(0.5));

// When loaded
let state = HandleLoadState::new(handle, AssetState::Loaded);
assert!(state.is_ready());

Implementations§

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impl<A: Asset> HandleLoadState<A>

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pub fn new(handle: AssetHandle<A>, state: AssetState) -> Self

Creates a new handle load state.

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pub fn invalid() -> Self

Creates a handle load state for an invalid handle.

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pub fn handle(&self) -> &AssetHandle<A>

Returns a reference to the handle.

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pub fn state(&self) -> &AssetState

Returns a reference to the asset state.

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pub fn is_valid(&self) -> bool

Returns true if the handle is valid (not INVALID sentinel).

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pub fn is_ready(&self) -> bool

Returns true if the asset is fully loaded and ready for use.

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pub fn is_loading(&self) -> bool

Returns true if the asset is currently loading.

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pub fn is_failed(&self) -> bool

Returns true if the asset failed to load.

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pub fn progress(&self) -> Option<f32>

Returns the loading progress if currently loading.

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pub fn error(&self) -> Option<&str>

Returns the error message if loading failed.

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pub fn into_handle(self) -> AssetHandle<A>

Consumes self and returns the inner handle.

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pub fn set_state(&mut self, state: AssetState)

Updates the state.

Trait Implementations§

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impl<A: Clone + Asset> Clone for HandleLoadState<A>

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fn clone(&self) -> HandleLoadState<A>

Returns a duplicate 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<A: Debug + Asset> Debug for HandleLoadState<A>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<A: Asset> Default for HandleLoadState<A>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<A: PartialEq + Asset> PartialEq for HandleLoadState<A>

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fn eq(&self, other: &HandleLoadState<A>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<A: Asset> StructuralPartialEq for HandleLoadState<A>

Auto Trait Implementations§

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impl<A> Freeze for HandleLoadState<A>

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impl<A> RefUnwindSafe for HandleLoadState<A>
where A: RefUnwindSafe,

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impl<A> Send for HandleLoadState<A>

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impl<A> Sync for HandleLoadState<A>

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impl<A> Unpin for HandleLoadState<A>
where A: Unpin,

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impl<A> UnsafeUnpin for HandleLoadState<A>

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impl<A> UnwindSafe for HandleLoadState<A>
where A: 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<F, T> IntoSample<T> for F
where T: FromSample<F>,

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fn into_sample(self) -> T

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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<R, P> ReadPrimitive<R> for P
where R: Read + ReadEndian<P>, P: Default,

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fn read_from_little_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_little_endian().
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fn read_from_big_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_big_endian().
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fn read_from_native_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_native_endian().
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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> ToSample<U> for T
where U: FromSample<T>,

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fn to_sample_(self) -> U

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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<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

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where T: Send + Sync + 'static,

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