Enum GcState 

pub enum GcState {
    Pause,
    Propagate,
    EnterAtomic,
    Atomic,
    SweepAllGc,
    SweepFinObj,
    SweepToBeFnz,
    SweepEnd,
    CallFin,
}

Phases of the incremental collection cycle.

The state machine matches a simplified subset of C-Lua’s lgc.c FSM and is driven by Heap::incremental_step_with_post_mark.

Transitions:

• Pause → Propagate (on first step: reset colors, trace roots).
• Propagate → EnterAtomic (when the gray queue empties).
• EnterAtomic → Atomic (atomic phase is about to run).
• Atomic → SweepAllGc (post-mark hook has run; sweep cursor is initialized).
• SweepAllGc → SweepFinObj (allgc sweep cursor reached the end).
• SweepFinObj → SweepToBeFnz (finobj sweep cursor reached the end).
• SweepToBeFnz → SweepEnd (tobefnz sweep cursor reached the end).
• SweepEnd → CallFin (finish sweep bookkeeping).
• CallFin → Pause (cycle is complete).

Collecting is kept as a compatibility alias for the old API (used by barrier) — it means “anything but Pause.”

Variants

Pause

Propagate

EnterAtomic

Atomic

SweepAllGc

SweepFinObj

SweepToBeFnz

SweepEnd

CallFin

Implementations

impl GcState

pub fn is_pause(self) -> bool

pub fn is_propagate(self) -> bool

pub fn is_invariant(self) -> bool

pub fn is_sweep(self) -> bool

Trait Implementations

impl Clone for GcState

fn clone(&self) -> GcState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GcState

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

Formats the value using the given formatter.

impl PartialEq for GcState

fn eq(&self, other: &GcState) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for GcState

impl Eq for GcState

impl StructuralPartialEq for GcState