websem: close direct SVG vector-effect - #132
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WalkthroughThe change adds explicit local and frame stroke spaces, resolves SVG ChangesVector-effect stroke support
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🔵 Low · up to SVG elements with no drawable stroke can still be rejected because vector-effect is resolved too early. The impact is narrow, but the ordering should be corrected before merge or explicitly accepted. Sequence Diagram(s)sequenceDiagram
participant SVG
participant StrokeContract
participant Drawlist
participant PaintExecutor
SVG->>StrokeContract: Resolve vector-effect
StrokeContract->>Drawlist: Store Local or Frame
Drawlist->>PaintExecutor: Emit stroke item
PaintExecutor-->>SVG: Render mapped stroke and paint
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 57.35% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 68 functions across 8 files. (10 skipped: 9 unsupported, 1 too large.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Inline comments:
In `@crates/websem/src/svg.rs`:
- Line 13389: In resolve_stroke, move the resolve_vector_effect_space call from
the initial setup to immediately before Stroke::new_with_dash is constructed.
Keep it after the SVGPaintKind::None, !paint.opacity_pass, and width == 0.0
early returns so vector-effect is resolved only when a stroke is actually built.
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ℹ️ Review info
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Run ID: 47234ee1-b4a5-49d9-b318-17024e368b0d
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📒 Files selected for processing (18)
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Verdict
VE1 is CLOSE/SPLIT. The direct SVG
vector-effectpresentation-attribute row closes at the complete standard-track grammar. The CSS property twin stays open because the pinned Stylo build has no Servovector-effectlonghand; authored declarations keep a stable refusal rather than gaining a matcher beside the cascade.What changed
StrokeSpace::Local | Framefact torframe; no SVG syntax, backend type, or host view crosses the contract.pathLength, paint-server, clip/mask/filter/opacity, pattern/mask/marker-source,<use>, and nested-viewport routes.markerUnits="strokeWidth"uses RMS affine scale, whileuserSpaceOnUseremains independent.var(),env(),attr(), and experimentalif()refusals.Chromium measurement
Chromium 149.0.7827.55 was measured first through the shared hash-pinned capture module.
non-scaling-strokemaps the centerline before applying one nominal circular pen. The matrix covered all admitted geometry, general affine andviewBoxtransforms, dashes andpathLength,<use>, marker units/orientation, paint servers, and effect composition. Every candidate was also rendered through actual strict and best-effortn0; process success was never treated as pixel proof.The scratch pass found two silent backend precision defects before close. Explicit centerline projection changed f32 cancellation under a pure translation, so identity-linear maps now retain the established local execution order. Separately, f64 determinant classification painted strokes and markers Chromium suppresses when the same determinant underflows or overflows f32. Both causes have focused cells and unit laws.
The final LAW pass found another silent ingress class: Chromium resolves direct
var()fallback, customenv()fallback, typedattr(), and a true CSSif()branch tonon-scaling-stroke; the old raw parser paintednone, differing by 512 pixels at maximum channel delta 255 for each form. They now refuse by exact function name in both policies. The first three retain their own checklist rows;if()belongs to CSS Values 5's explicitly early-exploration draft and does not raise the checklist grammar bar.Hosted review found that this patrol initially ran before the stroke resolver proved that a stroke would be constructed. Pinned Chromium keeps fill-only and zero-width cases exact; the old strict path refused and best effort skipped 1,024 valid pixels at maximum channel delta 233. Resolution now follows the no-stroke exits. A dedicated cell guards both inert branches. The separate marker path remains live: ordinary and non-scaling
markerUnits="strokeWidth"differ by 768 pixels at delta 255 even with stroke paintnone, and thevar()form equals the non-scaling result (measured, not celled).Forty-eight new Chromium-baked cells are exact, with no tolerance. The primitive corpus moves 1,079 → 1,127, sampled frames remain 16, and the named refusal register moves 226 → 230.
Gate sensitivity
Restoring each law returned the complete fixture gate to green.
Independent rung review
No Workflow runner is exposed in this environment, so I reproduced
.agents/workflows/verify-rung.js's TICK/LAW and REPRO roles manually. The LAW pass produced the function-ingress must-fix above; hosted review produced the inert-branch must-fix; both were measured and applied before landing. The final review confirms that only the direct presentation-attribute row changes, unsupported live CSS/function routes depart by stable name in strict and best-effort modes, the capture and probe modules are unchanged, all 48 new cells discriminate their claimed branch, and no score or FLIP artifact was touched.Verification
just bake;just gate;just statusn0strict and best-effort renders for every candidatecargo test(full workspace; refreshed hosted run after the review fix passed in 9m29s)cargo fmt --all --checkcargo clippy --no-depspnpm fmt:check;pnpm exec oxlint --deny-warningspnpm --filter www types:checkpnpm --filter @grida/reftest typecheck,build, andtest(51 passed, 1 skipped)