18 functions, 1,245 lines. highway.js 3,972 -> 2,727 (-31%). The biggest R3c slice: notes,
sustains, chords, strum groups, unison bends and lyrics — everything the default renderer
paints each frame.
━━━ MUTABILITY, NOT LOCATION, DECIDES WHERE A THING BELONGS ━━━
Three per-instance caches came out with this slice, and they are why it needed care:
_frameMismatchWarned a warn-once Set of chord ids (feedBack#88)
_chordRenderInfo a WeakMap of chord -> chain info
_lyricMeasureCache Map<fontSize, Map<text, width>>
All three are MUTATED. Left at module scope they would be SHARED ACROSS PANELS — one
highway's lyric widths and chord chains stomping another's, silently, with nothing throwing.
createHighway() is a factory (the constitution publishes window.createHighway so a plugin can
build a second highway), so they are lifted onto hwState, which is exactly what hwState is for.
The shimmer LUT went the OTHER way — to MODULE scope in highway-geometry.js. It is a
deterministic xorshift table, byte-for-byte identical for every instance, so sharing it is not
merely safe but BETTER: built once for the page rather than once per panel.
Same slice, opposite directions, decided entirely by whether the thing mutates.
━━━ MY SCRIPT WAS WRONG TWICE. THE GATES CAUGHT BOTH. ━━━
1. HAND-LISTED THE MOVE SET. I listed 10 functions and missed six that drawChords needs
(_ensureChordRenderCache, bsearchChords, getChordTemplateInfo, _computeChordBox,
_updateFretLinePreview, _drawFretLineChordPreview). The no-undef gate named every one. The
set is now DERIVED from the dependency closure — 18, not 10.
2. JUDGED PURITY TOO EARLY, and this one is subtle. I classified _computeChordBox as pure
because its ORIGINAL body never mentions hwState. Then the call-site rewriter injected
`fretX(hwState, …)` INTO it — fretX takes hwState now (#916) — leaving a function that
references an hwState it was never given. Purity has to be judged from the body AS IT WILL
BE, so the classifier iterates to a fixed point: a function needs hwState if it mentions it,
OR calls anything that now takes it. That moved _computeChordBox to the stateful side.
VERIFIED. A/B against origin/main: IDENTICAL, zero page errors. The PLUGIN BUNDLE contract is
byte-identical (b.fretX arity 3, b.getNoteState arity 2, both stable references, both correct
under the old calling convention). PERF GATE PASSES AT 1.92ms against its 12ms budget — and
this is the slice that could really have cost something: the ENTIRE per-frame drawing path is
now cross-module. It costs nothing measurable.
TESTS. highway_teaching_marks follows strumGroupBuckets to the new module. The two source-shape
harnesses now read highway.js AND every static/js/highway-*.js, rather than being re-pinned at
whichever file currently holds a function — re-pinning breaks again next time, and a shape
assertion that silently stops finding its target is indistinguishable from one that passes.
node 1045, pytest 2416, ESLint 0, no-undef 0, Codex 0.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* refactor(highway): lift 79 per-instance closure vars into `hwState` (R3c H lift)
Collapses createHighway()'s 79 mutable closure `let`s into one per-instance
`hwState` object. Scope-resolved rewrite via acorn + eslint-scope: 1059 edits
(1057 references + 79 defs - the deleted `let canvas, ctx, ws`), with the four
names shadowed in inner scopes (chartTime/ctx/notes/chordTemplates) resolved
correctly so only closure-bound refs move. Enables the later module split:
extracted renderer/ws modules close over `hwState` as a factory arg, so
multi-panel plugins (highway_3d, note_detect, splitscreen) don't share one
highway's state.
Container is `hwState`, NOT `H` — `H` is already canvas height (70 uses). The
frame-time gate caught that collision instantly (0 draws, `H._drawHooks is not
iterable` in the shared draw-hook path).
PERF (the whole risk): identical to the pre-lift baseline. Draw p50 2.1-2.2 ms,
p95 2.7-3.0 ms (pre-lift 2.7-3.2), measured on the Arcturus feedpak, headless.
Each closure-slot read became a `hwState.<slot>` monomorphic property load; the
hot loop pays nothing. On-device: Byron confirmed the 2D highway plays smoothly.
Tests: the ~30 highway JS suites brace-extract functions/patterns from the
source; their state references + the monotonic-clock vm sandbox now use
`hwState.<slot>` (the const _CHART_MAX_INTERP_MS etc. stay top-level, not
lifted). node --test: 1030/1030 green. Two self-inflicted over-replacements
caught and reverted (`_lefty` is a prefix of the 3D-local `_leftyCached`;
`STRING_COLORS` a suffix of `DEFAULT_STRING_COLORS`) — substring replaces on the
brace-extract regexes need word care.
Transformer saved at ~/.local/share/feedback-editor/highway-h-lift.mjs.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* test(highway): pin the setNoteStateProvider assertion to hwState._noteStateProvider (CodeRabbit)
The [^}]* form matched an unqualified _noteStateProvider =, so a regression to
closure-level state could still pass. Require the hwState-qualified assignment.
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* Update GitHub repo references from feedback* to feedBack*
* rename: slopsmith -> feedBack, byron -> got-feedBack
Renames across the entire codebase:
- slopsmith/Slopsmith/SLOPSMITH/SlopSmith -> feedBack/FeedBack/FEEDBACK/FeedBack
- byron/Byron/Byrongamatos -> got-feedBack/got-feedBack/got-feedBack
- /home/byron/ -> /opt/got-feedBack/
- byron@ougsoft.com -> hi@got-feedBack.org
- github.com/byrongamatos/ -> github.com/got-feedback/
- com.byron. -> com.got-feedback.
- SLOPSMITH_ env vars -> FEEDBACK_ with backward-compat fallback
- Protocol/storage strings migrated with read-old/write-new pattern
- window.slopsmith JS API -> window.feedBack (canonical) + backward-compat alias
Refs: #rename-slopsmith
* rename: complete regen against current main + fix backward-compat alias
Regenerated the slopsmith->feedBack / byron->got-feedBack rename on top of
current main (3 commits had landed since the branch: #572/#554/#574),
resolving the four content conflicts in favour of main's newer content
(autoplay/auto-exit, accuracy-badge, Virtuoso re-home, feedpak badge).
Completion fixes on top of the mechanical rename:
- Re-apply rename to post-branch content the original rename never saw:
window.slopsmith(.Tour) consumers in lessons.js / notifications.js /
onboarding-tour.js, and the matching JS + python tests (autoplay_exit,
progression_*, test_feedpak_extension FEEDBACK_* env vars). The test env
vars now match server.py (which reads FEEDBACK_SYNC_STARTUP /
FEEDBACK_SKIP_STARTUP_TASKS), so the sync-startup test exercises the real
path again.
- Restore the window.slopsmith backward-compat alias dropped during conflict
resolution, and move the bus aliases to AFTER the _feedBackExisting merge
block so they reference the fully-assembled object (also fixes the
loop_api.test.js API-surface regex, which the original PR latently broke).
- Drop the stray empty data/web_library.db (runtime DB lives in CONFIG_DIR)
and gitignore it.
- Fix stale tone-source test: feed[dB]ack -> fee[dB]ack to match shipped
source labels.
Verified locally (org CI billing-blocked): JS 819/819 pass; pytest 1669
passed / 1683 collected with 0 import errors; zero residual slopsmith/byron
except the two intentional window.slopsmith aliases.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* rename: implement advertised backward-compat + prune dead community plugins
Address gaps where PR #537's "Backward compatibility" section was advertised
but not implemented, and clean up the community plugin list.
Env vars (FEEDBACK_* canonical, legacy SLOPSMITH_* honoured):
- New lib/env_compat.py (getenv_compat / env_flag_compat) + tests. server.py
(_env_flag + all FEEDBACK_* reads), diagnostics_hardware, gp2midi and
tailwind_rebuild now resolve the legacy alias, so existing SLOPSMITH_UI /
SLOPSMITH_PLUGINS_DIR / etc. deployments keep working.
- Fix the rename collapsing plugins/__init__.py and minigames/routes.py from
`FEEDBACK_PLUGINS_DIR or SLOPSMITH_PLUGINS_DIR` into a redundant
`FEEDBACK_ or FEEDBACK_` (the fallback was silently lost).
Storage (app.js update-channel):
- Read feedBack-update-channel, fall back to legacy slopsmith-update-channel,
and clear the legacy key on write — so a user's update-channel preference
survives the rename instead of resetting to "stable".
Community plugin list (README): the rename rewrote third-party repo URLs we
don't own. Probed every one; their owners never renamed, so:
- Restore the 13 live community plugins to their real slopsmith-* names.
- Prune 6 that are 404 to the public (topkoa splitscreen/stems, OmikronApex
tuner, Jafz2001 nam-rig-builder, DeathlySin song-preview, Erikcb91 shuffle).
- Fix a pre-existing Guitar Theory clone-command typo (nam-tone -> guitar-theory).
Verified: env_compat 7/7, JS 819/819, pytest 1690 collected / 0 import errors,
rename-sensitive + startup suites green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: byrongamatos <xasiklas@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
