Trait SnapshotWidth 

pub trait SnapshotWidth: SnapshotWidth + LayoutIndex {
    type LittleEndianWord: LayoutSnapshotWord<Index = Self>;

    // Required methods
    fn to_le_word(self) -> Self::LittleEndianWord;
    fn from_le_word(word: Self::LittleEndianWord) -> Self;
}

A persisted unsigned width with its little-endian storage word.

This is the single width-to-LE-word bijection shared by oxgraph-csr, oxgraph-hyper-bcsr, and any future layout crate. usize deliberately does not implement it: persisted snapshots are fixed-width.

Performance

SnapshotWidth::to_le_word and SnapshotWidth::from_le_word are O(1).

Required Associated Types

type LittleEndianWord: LayoutSnapshotWord<Index = Self>

Little-endian storage word for this width.

Required Methods

fn to_le_word(self) -> Self::LittleEndianWord

Lowers this logical index into its little-endian storage word.

Performance

This function is O(1).

fn from_le_word(word: Self::LittleEndianWord) -> Self

Recovers this logical index from a little-endian storage word.

Performance

This function is O(1).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl SnapshotWidth for u16

type LittleEndianWord = U16<LittleEndian>

fn to_le_word(self) -> Self::LittleEndianWord

fn from_le_word(word: Self::LittleEndianWord) -> Self

impl SnapshotWidth for u32

type LittleEndianWord = U32<LittleEndian>

fn to_le_word(self) -> Self::LittleEndianWord

fn from_le_word(word: Self::LittleEndianWord) -> Self

impl SnapshotWidth for u64

type LittleEndianWord = U64<LittleEndian>

fn to_le_word(self) -> Self::LittleEndianWord

fn from_le_word(word: Self::LittleEndianWord) -> Self

Implementors