Struct MatchStats 

pub struct MatchStats {
    pub num_arms: usize,
    pub reachable_arms: Vec<usize>,
    pub unreachable_arms: Vec<usize>,
    pub is_exhaustive: bool,
    pub tree_depth: usize,
}

Statistics about a compiled match expression.

Fields

num_arms: usize

Number of arms in the original match.

reachable_arms: Vec<usize>

Indices of arms that are actually reachable.

unreachable_arms: Vec<usize>

Indices of arms that are unreachable (redundant).

is_exhaustive: bool

Whether the match is exhaustive (covers all cases).

tree_depth: usize

Depth of the generated decision tree.

Implementations

impl MatchStats

pub fn is_exhaustive(&self) -> bool

Returns true if all arms are reachable.

pub fn has_redundant_arms(&self) -> bool

Returns true if there are any redundant (unreachable) arms.

Trait Implementations

impl Clone for MatchStats

fn clone(&self) -> MatchStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MatchStats

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

Formats the value using the given formatter.