screen.js H/P-section render path at lines 15396-15402 calls _bcLoadSettings()
and _bcFfIdx() (3×) — both moved to bc-panel.js in cut 4 but omitted from the
export list. Browser: first render() after bcCtrl creation → ReferenceError;
seek/loop fast-forward index also dead. Suite was green because no test
executed the butterchurn render path.
Fix:
- export _bcLoadSettings and _bcFfIdx from bc-panel.js
- add both to the tagged import in screen.js
Class-killer (test 12 — generic, not instance-specific):
Extracts all exports from bc-panel.js, all imports in screen.js's
bc-panel.js import clause, then asserts no exported symbol appears as a
bare reference in the screen.js IIFE body without being imported.
Generic: adding a new export + new caller without updating the import → RED.
Own grep (audit):
grep (non-comment lines, all private _bc* names from bc-panel.js):
_bcLoadSettings 1 hit (line 15396)
_bcFfIdx 3 hits (lines 15400-15402)
all others: 0 hits
Only the two symbols Creed found.
Mutation-verify:
remove _bcLoadSettings from screen.js import →
node --test tests/js/highway_3d_bc_panel.test.js
tests 12 pass 11 fail 1 (test 12 RED) ✓
restore →
node --test tests/js/highway_3d*.test.js plugins/highway_3d/tests/*.test.js
tests 222 pass 222 fail 0 ✓ GREEN
Plan §8 amended: exports 2→4 with dated note.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014uZ169yfoFYArXz962g7KW
Test 2 used s.indexOf which matched the JSDoc comment at offset 133, not
the real assignment at line 183 — so it passed even with the assignment
indented inside a function.
Fix: s.search(/^window\.h3dBcApplySettings\s*=/m) anchored to line-start.
An indented assignment (inside a function) does not match /^window\./m and
returns -1. Also removed the erroneous firstFnIdx comparison: the assignment
is legitimately after _bcIsDesktop in the file and still at module scope.
Mutation-verify:
indent assignment → node --test tests/js/highway_3d_bc_panel.test.js
not ok 2 (fail 1/11) ✓ RED
restore → node --test tests/js/highway_3d*.test.js plugins/highway_3d/tests/*.test.js
tests 221 pass 221 fail 0 ✓ GREEN
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014uZ169yfoFYArXz962g7KW
Move all _bc* constants, mutable state, and functions (~670 lines) from
screen.js B-section (lines 27-695) to src/bc-panel.js.
Public API: _bcCreateController, _bcIsDesktop (2 named exports).
window.h3dBcApplySettings assigned at bc-panel.js module scope (1
beyond-subst; body verbatim — scope moves from IIFE to ES module top-level).
THREE_URL / THREE_CDN dead-code tombstoned (unused since three-loader.js).
Vendor files untouched (R2); asset URL constants verbatim (R3).
Delta note: original survey estimated ~1,333 lines for B-section. Actual is
~670 because (a) prior cuts 1b/2/3 moved material that was interleaved in the
B-section range, and (b) the original survey section boundaries were wrong —
the B-section ends where the H-section factory begins, not at line 695 of the
pre-cut file.
Completeness grep (post-cut):
grep -nP '^\s*(function|const|let|var)\s+_bc' screen.js
→ 2 hits: _bcActive and _bcSyncMode at line 8081-8082 (factory-scope
H/P-section helpers that orchestrate the imported controller; not B-section
symbols — confirmed F-section in the survey table).
B-section _bc* definitions in IIFE: 0.
Suite: node --test tests/js/highway_3d*.test.js plugins/highway_3d/tests/*.test.js
tests 221 pass 221 fail 0
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014uZ169yfoFYArXz962g7KW
