Struct Stats 

pub struct Stats {
    pub nodes: usize,
    pub branches: usize,
    pub entries: usize,
    pub depth: usize,
}

统计信息。

Fields

nodes: usize

独立节点数（深度 1 的分支）。

branches: usize

关联分支数（深度 ≥2 的分支）。

entries: usize

已登记条目总数。

depth: usize

实测分支树最大深度。

Trait Implementations

impl Clone for Stats

fn clone(&self) -> Stats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Stats

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

Formats the value using the given formatter.

impl Default for Stats

fn default() -> Stats

Returns the “default value” for a type.

impl Serialize for Stats

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.