websem: admit exact-time SVG pattern clients - #114
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WalkthroughThe change expands SVG animation coverage to pattern-painted rectangles, rejects fractional pattern phases and non-canonical number sources, adds deterministic Chromium fixtures, and updates tests, documentation, oracle metadata, and refusal registers. ChangesSVG pattern animation
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to The PR expands SVG admission for a narrowly constrained animated pattern case and adds stricter rejection for unsupported numeric and phase representations. Merge is not ready until the added product logic is moved out of prohibited paths or the repository policy exception is explicitly accepted. Sequence Diagram(s)sequenceDiagram
participant FixtureBake
participant DeterministicChromium
participant PatternAnimationFixture
participant OracleManifest
FixtureBake->>DeterministicChromium: Launch deterministic browser
FixtureBake->>DeterministicChromium: Create JavaScript-disabled context
DeterministicChromium->>PatternAnimationFixture: Capture base and timed samples
PatternAnimationFixture-->>FixtureBake: Return frames and animation state
FixtureBake->>OracleManifest: Store hashes, seek order, and capture metadata
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 70.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 20 functions across 7 files. (9 skipped: 9 unsupported.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@crates/websem/src/svg.rs`:
- Around line 2909-2914: Remove or revert the added product/editor logic across
crates/websem/src/svg.rs lines 2909-2914, 6643-6653, 6681, 6753, and
11241-11248, including the pattern-phase admission logic, filter-profile helper
and uses, and provenance wrapper; also revert the production import change in
crates/websem/src/svg_animation.rs lines 19-22 and the animation number parser
changes at lines 493-519. No direct changes beyond removing these additions are
required.
- Around line 2909-2914: Update the validation around the is_integer closure to
validate the resolved tile origin used for objectBoundingBox patterns, including
reference_box.x and reference_box.y in the tile_x and tile_y phase values,
rather than checking only x and y. Preserve the existing finite/integer checks
and error behavior for non-empty items.
🪄 Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: CHILL
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Run ID: 8d5c6044-aff9-4eb2-940a-e6a130e69c53
⛔ Files ignored due to path filters (11)
fixtures/web-first/animation/chromium/svg-pattern-client-animation/base.pngis excluded by!**/*.pngfixtures/web-first/animation/chromium/svg-pattern-client-animation/sample-0ns.pngis excluded by!**/*.pngfixtures/web-first/animation/chromium/svg-pattern-client-animation/sample-1000000000ns.pngis excluded by!**/*.pngfixtures/web-first/animation/chromium/svg-pattern-client-animation/sample-2000000000ns.pngis excluded by!**/*.pngfixtures/web-first/animation/chromium/svg-pattern-client-animation/sample-250000000ns.pngis excluded by!**/*.pngfixtures/web-first/animation/chromium/svg-pattern-client-animation/sample-3000000000ns.pngis excluded by!**/*.pngfixtures/web-first/animation/svg-pattern-client-animation.svgis excluded by!**/*.svgfixtures/web-first/animation/svg-pattern-client-base.svgis excluded by!**/*.svgfixtures/web-first/unsupported/svg-pattern-tile-phase-precision.svgis excluded by!**/*.svgfixtures/web-first/unsupported/svg-smil-number-precision-alias.svgis excluded by!**/*.svgfixtures/web-first/unsupported/svg-smil-number-source-syntax.svgis excluded by!**/*.svg
📒 Files selected for processing (16)
crates/n0_cli/README.mdcrates/websem/src/svg.rscrates/websem/src/svg_animation.rscrates/websem/tests/filter_contract.rscrates/websem/tests/pattern_contract.rscrates/websem/tests/svg_animation_x.rscrates/websem/tests/unsupported_corpus.rsdocs/wg/consolidation/svg-engine-of-record.mddocs/wg/consolidation/web-checklist.mdfixtures/web-first/README.mdfixtures/web-first/STATUS.mdfixtures/web-first/animation/README.mdfixtures/web-first/animation/bake_chromium.tsfixtures/web-first/animation/cases.jsonfixtures/web-first/animation/oracle-bake.jsonfixtures/web-first/unsupported/README.md
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Verdict
ADMIT/SPLIT, with no checklist closure.
The existing exact-time
<animate attributeName="x">slice may now move a top-level direct rectangle that carries the admitted repeating-pattern profile, including a color-matrix filter inside the tile and a source-derived color-matrix filter around the client. Pattern-source and tile-geometry dynamics remain outside the slice, so<pattern>,<animate>, and every shared dynamics/geometry row stay open.No new temporal,
rframe, or painter vocabulary is introduced. Sampling still changes the existing rectangle scalar and recompiles the same resolved pattern/filter program.Measured crux
1.000000059604644775390625000000000000000000000001selected opposite binary32 neighbours in Chromium and the former direct parser, changing 48px/Δ238. Chromium also rejects trailing-dot and Unicode-whitespace forms that Rust formerly accepted, changing 3,072px/Δ238. One-way provenance and SVG-number-syntax patrols now refuse those classes; ASCII SVG whitespace, leading plus, and leading fractional-dot controls remain admitted.Etiology: the endpoint defect stopped at the source-number parser contract—Rust's broader float/whitespace syntax was mistaken for SVG grammar. The filter over-refusal stopped at static source classification, which counted a non-rendering animation element as source geometry. Neither defect required a new cascade matcher, sampler meaning, frame fact, or painter branch.
Evidence and counts
chromium_capture.tsposture used by probes and primitive bakes.Gate sensitivity was proved before trusting green: temporarily accepting only zero as integer phase made
just gatefail onsvg-pattern-negative-origin; temporarily treating<animate>as static source geometry made the exact-time oracle fail onsvg-pattern-client-animation. Restoring both returned the 936 primitive cells and 16 sampled frames to green.Verification
cargo fmt --allcargo clippy --no-depscargo test -p animation-sampling -p rframe -p n0 -p websem -p n0_clicd fixtures/web-first && just gate && just statuscargo run -p n0_cli --bin n0comparisons.The repository Workflow runner for
.agents/workflows/verify-rung.jswas not exposed in this environment. I reproduced its independent TICK/LAW and REPRO roles manually. TICK/LAW found and fixed a relative-epsilon hole in the phase patrol and required complete accepted/rejected parser controls; REPRO independently reran the Chromium matrices, regenerated the pre-patrol X/Y mismatch renders, verified manifest additions/hashes, proved both sensitivity failures, and returned every gate green.