Struct ReductionMemo 

pub struct ReductionMemo { /* private fields */ }

A simple memoization table for reduction results.

Caches (expr, strategy) → reduced_expr pairs to avoid redundant reductions.

Implementations

impl ReductionMemo

pub fn new() -> Self

Create an empty memo table.

pub fn insert(&mut self, strategy: ReductionStrategy, expr: &Expr, result: Expr)

Insert a memo entry.

pub fn get(&mut self, strategy: ReductionStrategy, expr: &Expr) -> Option<&Expr>

Look up a memo entry.

pub fn hit_rate(&self) -> f64

Cache hit rate.

pub fn len(&self) -> usize

Number of cached entries.

pub fn is_empty(&self) -> bool

Whether empty.

pub fn clear(&mut self)

Clear the memo table.

Trait Implementations

impl Debug for ReductionMemo

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

Formats the value using the given formatter.

impl Default for ReductionMemo

fn default() -> ReductionMemo

Returns the “default value” for a type.