Struct Checkpoints

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pub struct Checkpoints { /* private fields */ }

Expand description

Currently stored snapshots used for rollback / rollforward.

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impl Checkpoints

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pub fn is_empty(&self) -> bool

Returns true if no checkpoints have been created.

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pub fn checkpoint(&mut self, checkpoint: Snapshot)

Given a new checkpoint Snapshot, insert it and set it as the currently active checkpoint.

If you rollback and then insert a checkpoint, it will erase all rollforward snapshots.

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pub fn rollback(&mut self, checkpoints: isize) -> Option<&Snapshot>

Rolls back the given number of checkpoints.

If checkpoints is negative, it rolls forward.

This function will always clamp itself to valid rollbacks. Rolling back or further farther than what is valid will just return the oldest / newest snapshot.

Trait Implementations§

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impl CloneReflect for Checkpoints

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fn clone_reflect(&self, registry: &TypeRegistry) -> Self

Clone the value using reflection.

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impl Default for Checkpoints

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fn default() -> Checkpoints

Returns the “default value” for a type. Read more

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impl Resource for Checkpoints
where Self: Send + Sync + 'static,

Auto Trait Implementations§

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impl !UnwindSafe for Checkpoints

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, U> AsBindGroupShaderType for T
where U: ShaderType, &'a T: for<'a> Into,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<GpuImage>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.

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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<T> for T

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fn downcast(&self) -> &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)

Converts &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)

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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where T: Any + Send,

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Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.

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impl<T> From<T> for T

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Returns the argument unchanged.

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where T: Default,

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Creates Self using default().

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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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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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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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