Struct Coverage 

pub struct Coverage {
    pub contributors: usize,
    pub members: usize,
}

How much of a sum’s membership actually contributed to it.

contributors is never greater than members; a coverage where they are equal is a complete sum, and one where contributors is zero means nothing could be read at all — in which case the accompanying MetricState is unavailable rather than zero.

Fields

contributors: usize

Members whose value was readable and went into the sum.

members: usize

Members the subtree holds.

Implementations

impl Coverage

pub const fn is_complete(&self) -> bool

Whether every member contributed, making the sum exact.

pub const fn missing(&self) -> usize

Members that could not be read.

pub fn share(&self) -> Option<Percent>

The share of members that contributed, for display.

None for an empty membership rather than 100%: a share of nothing is not complete, it is undefined, and §4 forbids inventing the difference.

Trait Implementations

impl Clone for Coverage

fn clone(&self) -> Coverage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Coverage

impl Debug for Coverage

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

Formats the value using the given formatter.

impl Eq for Coverage

impl PartialEq for Coverage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Coverage