SystemAccess

Struct SystemAccess 

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pub struct SystemAccess<'a> { /* private fields */ }
Expand description

Represents all available components to a system.

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impl<'a> SystemAccess<'a>

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pub fn type_id_to_archetype_id(&self, type_id: &TypeId) -> Option<ArchetypeId>

Returns ArchetypeId corresponding to the specified TypeId.

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pub fn component<C: Component>(&self) -> GlobalComponentAccess<'_, C>

Borrows the component. Panics if the component is mutably borrowed or not available to this system.

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pub fn component_mut<'b, C: Component>( &'b self, ) -> GlobalComponentAccessMut<'a, 'b, C>

Mutably borrows the component. Panics if the component is already borrowed or not available to this system.

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impl<'a> !Freeze for SystemAccess<'a>

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impl<'a> !RefUnwindSafe for SystemAccess<'a>

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impl<'a> Send for SystemAccess<'a>

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impl<'a> !Sync for SystemAccess<'a>

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impl<'a> Unpin for SystemAccess<'a>

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impl<'a> !UnwindSafe for SystemAccess<'a>

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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.