Struct LocalsPlus 

pub struct LocalsPlus { /* private fields */ }

Unified storage for local variables and evaluation stack.

Memory layout (each slot is usize-sized): [0..nlocalsplus) — fastlocals (Option<PyObjectRef>) [nlocalsplus..nlocalsplus+stack_top) — active evaluation stack (Option<PyStackRef>) [nlocalsplus+stack_top..capacity) — unused stack capacity

Both Option<PyObjectRef> and Option<PyStackRef> are usize-sized (niche optimization on NonNull / NonZeroUsize). The raw storage is usize to unify them; typed access is provided through methods.

Trait Implementations

impl Drop for LocalsPlus

fn drop(&mut self)

Executes the destructor for this type.

impl Traverse for LocalsPlus

fn traverse(&self, tracer_fn: &mut TraverseFn<'_>)

impl traverse() with caution! Following those guideline so traverse doesn’t cause memory error!:

fn clear(&mut self, _out: &mut Vec<PyObjectRef>)

Extract all owned child PyObjectRefs for circular reference resolution (tp_clear). Called just before object deallocation to break circular references. Default implementation does nothing.