Struct IdentityReading 

pub struct IdentityReading { /* private fields */ }

What one read of a volume’s identity produced: the identity itself, and the assurance of the read that produced it.

This is what volume_identity() returns, and the pairing is the point — the value cannot be taken without the level it was read at being in hand. The identity inside is the durable key: two readings of one volume on two platforms carry the same VolumeIdentity and, usually, different assurances, so it is identity() that goes into a registry and the assurance that decides whether to write to it now.

Implementations

impl IdentityReading

pub const fn identity(&self) -> VolumeIdentity

The identity the volume is named by — the durable key, whatever it was read from.

pub const fn assurance(&self) -> IdentityAssurance

How this identity was obtained.

pub const fn is_vouched(&self) -> bool

Whether the identity was read from the mounted filesystem itself on this call — shorthand for assurance() == IdentityAssurance::Vouched, so that requiring it is one call: volume_identity().filter(IdentityReading::is_vouched).

pub const fn is_declared(&self) -> bool

Whether the identity was read through a mount source its own mounter chose — shorthand for assurance() == IdentityAssurance::Declared, so that refusing it is one call: volume_identity().filter(|r| !r.is_declared()).

A consumer that mints or recognizes a volume by what it reads should refuse this level. See Declared.

Trait Implementations

impl Clone for IdentityReading

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 IdentityReading

impl Debug for IdentityReading

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

Formats the value using the given formatter.

impl Eq for IdentityReading

impl Hash for IdentityReading

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 IdentityReading

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for IdentityReading