Shipped code no longer unwraps, expects or panics: every one of the 124
unwrap()/expect()/panic!/unreachable! sites outside tests now handles the
failure (Result/Option, ?, let-else, defaults) and reports errors to the user.
- Lints: workspace clippy denies unwrap_used, expect_used, panic, todo,
unimplemented and unreachable; clippy.toml allows them in tests, and
integration tests, examples and testkit opt out explicitly.
- Safety net (vectorcraft_engine::guard): a panic in a top-level command rolls
the document back and returns EngineError::Internal; a panicking tool is
reset; the MCP server answers with an internal error and keeps serving; the
UI frame and each control request are guarded.
- APIs that hid failures now return them: Rendered::to_png/to_jpeg/to_webp
return Result (JPEG/WebP errors used to write empty files),
FontDb::face returns Option, Region::top returns Option.
- Fuzzing: engine/tests/import_fuzz.rs feeds garbage, hostile and mutated SVG
and PDF through import → render → export (30k cases locally, no panics).
- Docs: AGENTS.md/CLAUDE.md rule, docs/development.md "Robustness" section,
README pointer and a PR template checklist.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New preferences start with Scale Strokes & Effects off, as in Illustrator:
scaling an object keeps its stroke weights, dashes and effect distances unless
the option (or `strokes: true`) is on. Preference files that already store the
option keep their value.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The engine unit tests share one process, and two colour-management tests
switched the process-wide Color Settings (the working RGB space to the wide
gamut profile, Black Point Compensation off) for a moment. Any test that
showed or rendered a colour at that moment saw it through the wrong profile:
clicking_an_image_samples_its_pixel read #008181 instead of #008080.
- Move the two tests that change the Color Settings to their own test
binary (crates/engine/tests/color_settings.rs), so no unit test can see
non-default settings.
- The image-sampling test compares the stored colour, not its display hex.
- every_command_survives_empty_params toggles the process-wide proof view
(Proof Colors, Overprint Preview, Separations), so it now takes the
colour-management test lock like the tests that read that view.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brandon Thomas
bflatastic