Enum OverlayCoverage 

pub enum OverlayCoverage {
    Shared(Arc<RoaringBitmap>),
    PerField(Vec<Arc<RoaringBitmap>>),
}

Which (physical offset, field) cells a DataOverlayFile provides values for.

Bitmaps are parsed from their 32-bit Roaring encoding once when the fragment is loaded and held behind an Arc so cloning a fragment is cheap; use DataOverlayFile::coverage_for_field to obtain the one that applies to a given field.

Variants

Shared(Arc<RoaringBitmap>)

A single bitmap that applies to every field in the overlay’s data_file.fields (a dense / rectangular overlay): every covered offset has a value for every field.

PerField(Vec<Arc<RoaringBitmap>>)

One bitmap per field, in the same order as the overlay’s data_file.fields (a sparse overlay): different fields may cover different offset sets.

Implementations

impl OverlayCoverage

pub fn dense(bitmap: RoaringBitmap) -> Self

Build a dense coverage from a single bitmap shared across every field.

pub fn sparse(bitmaps: Vec<RoaringBitmap>) -> Self

Build a sparse coverage from one bitmap per field.

Trait Implementations

impl Clone for OverlayCoverage

fn clone(&self) -> OverlayCoverage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OverlayCoverage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl DeepSizeOf for OverlayCoverage

fn deep_size_of_children(&self, context: &mut Context) -> usize

fn deep_size_of(&self) -> usize

impl<'de> Deserialize<'de> for OverlayCoverage

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for OverlayCoverage

impl PartialEq for OverlayCoverage

fn eq(&self, other: &OverlayCoverage) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for OverlayCoverage

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for OverlayCoverage