Struct rustc_query_system::dep_graph::serialized::EdgeHeader

struct EdgeHeader {
    repr: usize,
}

A packed representation of an edge’s start index and byte width.

This is packed by stealing 2 bits from the start index, which means we only accomodate edge data arrays up to a quarter of our address space. Which seems fine.

Fields

repr: usize

Implementations

impl EdgeHeader

fn start(self) -> usize

fn bytes_per_index(self) -> usize

fn mask(self) -> u32

Trait Implementations

impl Clone for EdgeHeader

fn clone(&self) -> EdgeHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EdgeHeader

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

Formats the value using the given formatter.

impl Copy for EdgeHeader

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes