Struct MemoTable 

pub struct MemoTable { /* private fields */ }

Memoization table mapping u64 keys to u64 values.

Implementations

impl MemoTable

pub fn new() -> Self

Create a new empty memo table.

pub fn insert(&mut self, key: u64, val: u64)

Insert a key→value pair; replaces if key already present.

pub fn get(&self, key: u64) -> Option<u64>

Look up a value by key.

pub fn remove(&mut self, key: u64) -> Option<u64>

Remove a key; returns the old value if present.

pub fn len(&self) -> usize

Number of entries.

pub fn is_empty(&self) -> bool

Return whether the table is empty.

pub fn clear(&mut self)

Clear all entries.

pub fn drain_all(&mut self) -> Vec<(u64, u64)>

Drain all entries into a vec.

Trait Implementations

impl Default for MemoTable

fn default() -> Self

Returns the “default value” for a type.