CI was red on every recent main commit (pre-existing, not from the
V0.2/audit work): the workflow installs rolling `stable`, which on
the runners is ~1 year newer than the local toolchain that validated
the code. Under `RUSTFLAGS: -D warnings` + `clippy -- -D warnings`,
new rustc/clippy lints across pre-existing code became hard failures.
Confirmed identical on the 4 commits before v1.0-rc (e.g. the
`rope.rs:1076` unused_parens compile error is byte-identical there).
Resolution:
- `rust-toolchain.toml` pins channel 1.95.0 (the validated version).
The repo directory override makes every cargo invocation use it
regardless of what the CI action installs, eliminating the
local/CI toolchain-drift class permanently. Bump deliberately.
- Mechanical lint fixes (~17 sites, all the trivial/auto-fixable
class — no logic change): `cargo clippy --fix` + `cargo fix`
applied the machine-applicable set; hand-fixed the residuals:
daemon.rs (duplicated #[allow]), completion_framework.rs
(sort_by -> sort_by_key/Reverse), attach.rs (map().unwrap_or ->
map_or, crdt), buffer.rs (is_some+expect -> match, crdt),
m10_11_acceptance.rs (if -> match guard x2, crdt).
- `cargo fmt --all` (clippy --fix left overlay_paint.rs unformatted).
Verified clean under 1.95.0, all lanes: fmt 0 diffs; clippy
--all-targets -D warnings clean for luajit, lua54, AND crdt;
-D warnings build clean luajit+lua54; doc tests pass; lib 1223/0;
autofix-modified tests (m7_5, m8_1 incl. the Finding-2 fs_watch fix)
pass.
Scope: this clears CI red class #1 (toolchain-gap lints) only.
Independent and still triage-pending: #2 macOS F9 nix
PeerCredentials portability (Test (macos-*)), #3 M1/M4/M6 perf/fuzz
gates. Per plan, those are triaged after CI confirms #1 green.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Land the optimistic local-edit-application layer on top of the M10 CRDT
foundation: frontend-side rope replica with local edit application,
daemon-authoritative broadcast, and bidirectional cursor reconciliation.
Keystrokes feel instantaneous because the local replica answers next-render
queries before the daemon round-trip completes, while the daemon remains
the single source of truth for conflict resolution and broadcast to remote
replicas.
Architecture beats:
- BufferMirror (src/buffer_mirror.rs) holds a per-frontend rope replica
with explicit cursor-staleness tracking. Every event that may move the
active cursor or swap the active buffer marks the mirror stale; the
next CursorByte from the daemon clears it.
- CrdtOpOrigin {OptimisticReplica(FrontendId), DaemonKey} routes broadcast.
OptimisticReplica skips re-application on the originating frontend
(already applied locally); DaemonKey broadcasts to all replicas including
source -- covers Lua-driven and generated-buffer edits that bypass the
optimistic path.
- Generated buffers (*help*, *workers*, *pmacs-instance*, *errors*) funnel
apply_edit output through queue_daemon_origin_crdt_op so post-attach
CRDT upgrades don't drop their edits.
- forbid(unsafe_code) preserved throughout; loro 1.12 added as the CRDT
engine.
Audit posture: M10.10 shipped through six post-audit review rounds with
twenty-eight cumulative findings, most categorized as "incomplete
application of a prior round's mechanism." The audit doc records
grep-driven exhaustiveness as the standing countermeasure.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Levi Neuwirth