Struct LogosI64Map 

pub struct LogosI64Map { /* private fields */ }

A specialized open-addressing i64 → i64 map with VALUE semantics and no Rc<RefCell> indirection.

The code generator emits this in place of LogosMap<i64, i64> for non-aliased local Map of Int to Int variables (see codegen::i64_map): linear probing over two flat Vecs with Copy keys and values — no per-operation RefCell borrow, no key/value clone, &mut self mutation that LLVM can keep in registers. This is the C open-addressing shape, and it is only selected where the alias analysis proves the map never escapes or is shared, so the loss of reference semantics is invisible to the program.

0 is the empty-slot sentinel; the real key 0 is tracked separately so the map is correct for the entire i64 key space. The sentinel is 0, not i64::MIN, so the probe table allocates via vec![[0, 0]; slots] — the bit pattern Rust’s IsZero specialization lowers to alloc_zeroed (calloc): lazily-zeroed pages, no eager memset/page-fault storm up front.

Implementations

impl LogosI64Map

pub fn new() -> Self

pub fn with_capacity(cap: usize) -> Self

pub fn insert(&mut self, key: i64, value: i64)

pub fn get(&self, key: &i64) -> Option<i64>

pub fn contains_key(&self, key: &i64) -> bool

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for LogosI64Map

fn clone(&self) -> LogosI64Map

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogosI64Map

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

Formats the value using the given formatter.

impl Default for LogosI64Map

fn default() -> Self

Returns the “default value” for a type.

impl LogosContains<i64> for LogosI64Map

fn logos_contains(&self, key: &i64) -> bool

Check if this collection contains the given value.