Struct bevy_internal::utils::petgraph::matrix_graph::NotZero

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pub struct NotZero<T>(/* private fields */);

Expand description

NotZero is used to optimize the memory usage of edge weights E in a MatrixGraph, replacing the default Option<E> sentinel.

Pre-requisite: edge weight should implement Zero.

Note that if you’re already using the standard non-zero types (such as NonZeroU32), you don’t have to use this wrapper and can leave the default Null type argument.

Trait Implementations§

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impl<T> Default for NotZero<T>
where T: Zero,

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fn default() -> NotZero<T>

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

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impl<T> From<NotZero<T>> for Option<T>
where T: Zero,

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fn from(not_zero: NotZero<T>) -> Option<T>

Converts to this type from the input type.

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impl<T> Nullable for NotZero<T>
where T: Zero,

Auto Trait Implementations§

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impl<T> UnwindSafe for NotZero<T>
where 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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