Struct LowerStats 

pub struct LowerStats {
    pub lowered: u32,
    pub skipped: HashMap<SkipReason, u32>,
}

Coverage counters for a single lower_program call.

lowered = fns successfully placed into MirProgram.fns. skipped = fns dropped, keyed by the first SkipReason the lowerer hit inside that fn. Total = lowered + skipped.values().sum() equals the number of ResolvedFnDef items the call saw.

Fields

lowered: u32

Number of fns whose body lowered successfully into MirProgram.fns.

skipped: HashMap<SkipReason, u32>

Skipped fns keyed by reason. One bump per dropped fn.

Implementations

impl LowerStats

pub fn total(&self) -> u32

Total fns the lowerer saw, lowered or not.

pub fn coverage_ratio(&self) -> f64

Coverage ratio in [0.0, 1.0]. Returns 1.0 for an empty program so empty corpora don’t poison the gate.

pub fn record_lowered(&mut self)

Record one lowered fn.

pub fn record_skip(&mut self, reason: SkipReason)

Record one dropped fn with its dominant reason.

pub fn skipped_sorted(&self) -> Vec<(SkipReason, u32)>

Iterate (SkipReason, count) pairs in a stable order (variant order via SkipReason as u8 ascending), so dumps

• test assertions don’t depend on HashMap iteration drift.

Trait Implementations

impl Clone for LowerStats

fn clone(&self) -> LowerStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LowerStats

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

Formats the value using the given formatter.

impl Default for LowerStats

fn default() -> LowerStats

Returns the “default value” for a type.