Enum Backend 

pub enum Backend {
    X86ShaNi,
    Aarch64Sha,
    Portable,
}

Which implementation the sha1 / sha2 dependency selects for algo on this CPU.

Values mirror the cpufeatures dispatch inside those crates for the digests Grit uses (SHA-1 and SHA-256). On x86_64, SHA-256 in sha2 0.11 only selects SHA-NI or portable code (AVX2 is used for SHA-512, not SHA-256, so there is no separate AVX2 backend variant here).

Variants

X86ShaNi

x86_64 SHA-NI (sha target feature) — used for SHA-1 and SHA-256 when available.

Aarch64Sha

AArch64 SHA2 crypto extensions.

Portable

Portable software implementation.

Implementations

impl Backend

pub const fn as_str(self) -> &'static str

Stable lowercase name for scripts and JSON (x86_sha_ni, portable, …).

Trait Implementations

impl Clone for Backend

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Backend

impl Debug for Backend

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

Formats the value using the given formatter.

impl Display for Backend

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

Formats the value using the given formatter.

impl Eq for Backend

impl Hash for Backend

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Backend

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Backend