Trait legion::storage::ComponentStorage[−][src]

pub trait ComponentStorage<'a, T: Component>: UnknownComponentStorage + Default {
    type Iter: Iterator<Item = ComponentSlice<'a, T>>;
    type IterMut: Iterator<Item = ComponentSliceMut<'a, T>>;
    fn len(&self) -> usize;

    unsafe fn extend_memcopy(
        &mut self, 
        archetype: ArchetypeIndex, 
        ptr: *const T, 
        len: usize
    );

    fn get(&'a self, archetype: ArchetypeIndex) -> Option<ComponentSlice<'a, T>>;

    unsafe fn get_mut(
        &'a self, 
        archetype: ArchetypeIndex
    ) -> Option<ComponentSliceMut<'a, T>>;

    fn iter(
        &'a self, 
        start_inclusive: usize, 
        end_exclusive: usize
    ) -> Self::Iter;

    unsafe fn iter_mut(
        &'a self, 
        start_inclusive: usize, 
        end_exclusive: usize
    ) -> Self::IterMut;

    fn is_empty(&self) -> bool { ... }
}

A storage location for component data slices. Each component storage may hold once slice for each archetype inserted into the storage.

Associated Types

type Iter: Iterator<Item = ComponentSlice<'a, T>>[src]

An iterator of shared archetype slice references.

type IterMut: Iterator<Item = ComponentSliceMut<'a, T>>[src]

An iterator of mutable archetype slice references.

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Required methods

fn len(&self) -> usize[src]

Returns the number of archetype slices stored.

unsafe fn extend_memcopy(
    &mut self,
    archetype: ArchetypeIndex,
    ptr: *const T,
    len: usize
)[src]

Copies new components into the specified archetype slice.

Safety

The components located at ptr are memcopied into the storage. If T is not Copy, then the previous memory location should no longer be accessed.

fn get(&'a self, archetype: ArchetypeIndex) -> Option<ComponentSlice<'a, T>>[src]

Gets the component slice for the specified archetype.

unsafe fn get_mut(
    &'a self,
    archetype: ArchetypeIndex
) -> Option<ComponentSliceMut<'a, T>>[src]

Gets a mutable component slice for the specified archetype.

Safety

Ensure that the requested archetype slice is not concurrently borrowed anywhere else such that memory is not mutably aliased.

fn iter(&'a self, start_inclusive: usize, end_exclusive: usize) -> Self::Iter[src]

Iterates through all archetype component slices.

unsafe fn iter_mut(
    &'a self,
    start_inclusive: usize,
    end_exclusive: usize
) -> Self::IterMut[src]

Iterates through all mutable archetype component slices.

Safety

Ensure that all requested archetype slices are not concurrently borrowed anywhere else such that memory is not mutably aliased.

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Provided methods

fn is_empty(&self) -> bool[src]

Returns true if the storage contains no archetypes.

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Implementors

impl<'a, T: Component> ComponentStorage<'a, T> for PackedStorage<T>[src]

type Iter = ComponentIter<'a, T>

type IterMut = ComponentIterMut<'a, T>

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