Struct PatternStats 

pub struct PatternStats {
    pub total_patterns: usize,
    pub wildcards: usize,
    pub constructors: usize,
    pub literals: usize,
    pub or_patterns: usize,
    pub redundant_arms: usize,
}

Statistics about the compiled pattern match.

Fields

total_patterns: usize

Total number of patterns in the match.

wildcards: usize

Number of wildcard patterns.

constructors: usize

Number of constructor patterns.

literals: usize

Number of literal patterns.

or_patterns: usize

Number of or-patterns.

redundant_arms: usize

Number of redundant arms detected.

Implementations

impl PatternStats

pub fn new() -> Self

Create zeroed stats.

pub fn from_patterns(patterns: &[Pattern]) -> Self

Collect stats from a list of patterns.

Trait Implementations

impl Clone for PatternStats

fn clone(&self) -> PatternStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PatternStats

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

Formats the value using the given formatter.

impl Default for PatternStats

fn default() -> PatternStats

Returns the “default value” for a type.

impl Display for PatternStats

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

Formats the value using the given formatter.