tmu
e5df17310e
- Install expect-type@1.4.0 (devDependency) - New src/index.test.ts exercises the public API with both runtime assertions (node:assert/strict inside node:test) and type-level assertions (expectTypeOf().toEqualTypeOf, toMatchTypeOf, toHaveProperty) - Tests are excluded from tsc -p tsconfig.build.json (no .d.ts pollution in dist/) - Type-level checks happen during tsc --noEmit (run by 'npm run check' and the test script); expectTypeOf assertions have no runtime side effect, so they pair naturally with node --test in the same test() blocks - cspell: add EDITMSG to dictionary (used in commit-message-template path) - oxlint test-file overrides: silence no-nodejs-modules (we use node: builtins) and no-magic-numbers (literals in tests are fine) Coverage: - match() returns a builder with with/exhaustive/otherwise - P.literal narrows to its literal type, P.type to its typeof target - exhaustive() returns the union of handler return types - otherwise() falls back when no case matches - exhaustive() throws when no case matches
tiny-pattern-ts
Pattern matching for TypeScript/ESM environments (F#-style, not regex).
Development
- Build:
npm run build - Test:
npm run test,npm run test:ci - Checks:
npm run check,npm run fix - Format/Fix:
npm run fix:oxfmt,npm run fix:oxlint
Tooling
- TypeScript 7 — type checker and build (
tsc). - node --test +
--experimental-strip-types— test runner (Node 22.6+, flag dropped on Node 24). - c8 — code coverage for
test:ci. - oxlint — Rust-based linter.
- oxfmt — Rust-based formatter (Prettier-compatible).
- cspell — spell checking.
- sort-package-json — keep
package.jsonkeys alphabetized. - lefthook — git pre-commit hooks.
Requirements
- Node.js >= 22.6 (>= 24 recommended;
--experimental-strip-typesis unflagged on 24).
VSCode integration
- Recommended extensions: see
.vscode/extensions.json(oxc, cspell). - TypeScript 7 is used via
typescript.tsdkpointing atnode_modules/typescript/lib. - oxc extension provides oxlint squiggles and oxfmt format-on-save.
Workflows
- Version updates via
npm version. - Publishing via GitHub Actions on tagged commits (see
.github/workflows/ci.yml). - Changesets is available as a devDependency for changelog automation if desired.
Contribution guidelines
- Commit signing (GPG).
- Set up commit message template:
npm run use:git-commit-message. - See
commit-message-template. - Type-only tests use
expect-type'sexpectTypeOf(...)insidenode --testcases.