Enum Confidence 

#[non_exhaustive]
pub enum Confidence {
    Exact,
    LowerBound,
    Estimated,
}

How much to trust an aggregate.

Exact set-reclaim is not obtainable on every platform: macOS exposes no public API enumerating all owners of a partially shared extent, and the Linux reverse-mapping ioctls generally need CAP_SYS_ADMIN. So a sum of per-file unique bytes is a defensible lower bound, and says so.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Exact

LowerBound

Estimated

The safe default: claim nothing until a probe proves otherwise.

Implementations

impl Confidence

pub fn label(self) -> &'static str

The canonical word for this level, for anything that has to name it.

Here rather than in each caller because this enum is #[non_exhaustive]: a caller outside this crate cannot match it exhaustively, and the wildcard arm it would be forced to write is precisely where a later variant would silently render as something it is not.

Trait Implementations

impl Clone for Confidence

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 Confidence

impl Debug for Confidence

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

Formats the value using the given formatter.

impl Default for Confidence

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Confidence

impl PartialEq for Confidence

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Confidence