Enum Tier 

#[non_exhaustive]
pub enum Tier {
    WorkspaceSync = 0,
    Semaphore = 1,
    PerPack = 2,
    Backend = 3,
    Manifest = 4,
}

Lock tier ordinals matching .omne/cfg/concurrency.md. Acquisitions must strictly increase; reversed order risks the deadlock class the feat-m6-3 Lean proof rules out.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

WorkspaceSync = 0

Workspace sync lock — <workspace>/.grex.sync.lock.

Semaphore = 1

Scheduler semaphore permit — feat-m6-1.

PerPack = 2

Per-pack .grex-lock — feat-m6-2 (this module).

Backend = 3

Per-repo backend lock — <dest>.grex-backend.lock.

Manifest = 4

Manifest RW lock — .grex/events.jsonl sidecar.

Trait Implementations

impl Clone for Tier

fn clone(&self) -> Tier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tier

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

Formats the value using the given formatter.

impl Ord for Tier

fn cmp(&self, other: &Tier) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Tier

fn eq(&self, other: &Tier) -> 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 PartialOrd for Tier

fn partial_cmp(&self, other: &Tier) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Tier

impl Eq for Tier

impl StructuralPartialEq for Tier