Struct ModifiedFetchRead

pub struct ModifiedFetchRead<'a, T> { /* private fields */ }

Fetch type for the Modified<&T> query.

Trait Implementations

impl<'a, T> Fetch<'a> for ModifiedFetchRead<'a, T>

where T: 'a,

type Item = &'a T

Item type this fetch type yields.

fn dangling() -> Self

Returns dummy Fetch value that must never be used.

unsafe fn visit_chunk(&mut self, chunk_idx: u32) -> bool

Checks if chunk with specified index must be visited or skipped.

unsafe fn visit_item(&mut self, idx: u32) -> bool

Checks if item with specified index must be visited or skipped.

unsafe fn get_item(&mut self, idx: u32) -> &'a T

Returns fetched item at specified index.

unsafe fn touch_chunk(&mut self, chunk_idx: u32)

Notifies this fetch that at least one item in the chunk will be accessed. This method is called for each chunk in the archetype that is not skipped.