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tmu 7b90f898d3 ✅ Cover property-union autocomplete and rejection

Add property-union tests for the completion popup, a broad value in the
union, and value/stringification collisions. Rename the existing
property-union tests to a `property union:` prefix so they can be
selected with `--test-name-pattern`, and extend the autocomplete helper
with a `key` option so a probe can complete on a property other than
`kind`.

2026-09-23 16:32:16 +00:00

.gitea/workflows

♻️ Use the automatic token and fail closed on a partial release

2026-09-15 09:25:24 +00:00

.pi

✨ Adopt @spences10/pi-lsp project-local

2026-09-08 20:47:22 +02:00

.vscode

✨ Add VS Code node:test debugging and runner config

2026-09-16 17:34:53 +00:00

development

🐛 Reject mixed literal and broad universes

2026-09-23 16:32:09 +00:00

docker

🐛 Write the tool-cache completion marker into the image

2026-09-14 15:59:23 +00:00

scripts

📝 Correct the upstream claim in branch.sh

2026-09-17 13:23:34 +00:00

src

✅ Cover property-union autocomplete and rejection

2026-09-23 16:32:16 +00:00

.editorconfig

🔧 Added .editorconfig for consistent editor settings

2025-04-29 13:42:16 +02:00

.gitignore

✨ Add VS Code node:test debugging and runner config

2026-09-16 17:34:53 +00:00

.node-version

💚 Bake Node into the CI job image

2026-09-14 12:37:58 +00:00

.npmrc

✨ Enforce pinned Node via engine-strict

2026-09-06 00:13:12 +02:00

.oxfmtrc.json

🔧 Expand oxfmt to format project config and docs files

2026-09-03 20:58:33 +00:00

.oxlintrc.json

🔧 Move test lint disables to oxlint config

2026-09-21 09:56:39 +00:00

AGENTS.md

📝 Prefer LSP for symbol lookup in AGENTS

2026-09-22 09:43:08 +00:00

backlog.tasks

🐛 Narrow union-valued and optional discriminants

2026-09-23 16:04:00 +00:00

CHANGELOG.md

🐛 Reject mixed literal and broad universes

2026-09-23 16:32:09 +00:00

commit-message-template

🎉 Initial commit

2026-02-02 13:38:42 +01:00

CONTRIBUTING.md

♻️ Rename primitive to primitive-union

2026-09-22 09:46:59 +00:00

cspell.json

🐛 Gate the universe to finite, literal keys

2026-09-23 13:41:57 +00:00

knip.json

🐛 Stop knip reporting the source entry

2026-09-23 14:55:27 +00:00

lefthook.yml

✨ Add pre-push hook that runs the test suite

2026-09-04 23:41:59 +02:00

LICENSE

📄 Added MIT LICENSE

2025-04-29 13:43:07 +02:00

package-lock.json

🚀 Release 0.7.1

2026-09-23 14:56:59 +00:00

package.json

🚀 Release 0.7.1

2026-09-23 14:56:59 +00:00

README.md

📝 Document the finite-only universe decision

2026-09-23 13:42:12 +00:00

tsconfig.build.json

🔧 Inline sources and drop declaration maps

2026-09-11 19:50:50 +00:00

tsconfig.json

✨ Emit precompressed sidecars for served assets

2026-09-13 20:46:59 +00:00

README.md

tiny-pattern-ts

Pattern matching for TypeScript/ESM environments (F#-style, not regex).

Description

tiny-pattern-ts brings F#-style pattern matching to TypeScript. Patterns are ordinary objects whose matches method is a TypeScript type guard, so narrowing composes the way any other guard does. It is deliberately not a regex engine and not a macro: there is no transpiler and no DSL to learn, and the type-level contract is the feature — see development/library.md for the design decisions and Caveats for the limits.

Requirements

Node.js >= 26 (engines field; pinned via .node-version).
TypeScript >= 5.0 to consume the published declarations. The emitted .d.ts use const type parameters (TS 5.0) and keep their relative .ts specifiers; both resolve on TS >= 5.0 in node10 / node16 / nodenext / bundler.
The package is ESM-only (no CommonJS shim).

API

Yet to be implemented

Caveats

Only finite universes are supported. The factory must be given a finite union of literals; string, number and template literals are rejected. This is what lets the exhaustive overload be proven, so the runtime dispatch throw stays unreachable through the typed API.
A value and its stringification must not both be present. Object keys stringify, so a universe containing both a member and the string it stringifies to — 1 | "1", true | "true", null | "null" — is rejected at the factory. Either form alone is fine, and one value's string form may coexist with a different value's bare form ("true" | false).
symbol and bigint are not supported. A symbol brand is a compile-time phantom with nothing to match at runtime, and a bigint is not a valid property key; neither satisfies the matcher's universe constraint.
NaN and -0 cannot be matched specifically. They have no literal type, so both stay part of number.

License

Contributing

Contributions are documented in CONTRIBUTING.md; the reasons behind the project's decisions, rejected alternatives, and known issues live in development/. AI coding agents start at AGENTS.md.