2026-09-08 15:59:26 +02:00
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# choo v8 — branch notes
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This branch is the working tree for the v8 modernization effort. The v7 code
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at the repo root is untouched and stays authoritative until 8.0.0 ships;
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everything new lives under `packages/`.
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## Layout
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- `packages/core` — `@choojs/core`: the Choo class, same API as choo v7
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(`use`/`route`/`start`/`mount`/`toString`/`emit`), ported to ESM. The
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nano* internals are consolidated into `lib/` as attributed ports:
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- `lib/bus.js` ← nanobus 4.5.0
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- `lib/router.js` ← nanorouter 4.0.0 + wayfarer 7.0.1 (+ trie)
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- `lib/cache.js` ← choo component/cache.js + nanolru 1.0.0
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- `lib/raf.js` ← nanoraf 3.1.0, `lib/href.js` ← nanohref 3.1.0
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- `lib/timing.js` ← nanotiming 7.3.1 (unified on global `performance`)
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- `lib/dom.js` ← document-ready 2.0.1 + scroll-to-anchor 1.0.0
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- `lib/query.js` — nanoquery replaced by `URLSearchParams`
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- `packages/html` — `@choojs/html`: the rendering package.
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- `server.js` — server-side tagged template (← nanohtml 1.10.0 server,
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transform branches removed; pure runtime)
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2026-09-08 16:56:54 +02:00
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- `browser.js` — runtime-only cached template tag: each template literal
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is parsed once (WeakMap keyed on its strings array) into a <template>
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plus hole instructions; renders clone and fill. Values never pass
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through innerHTML. Document-level roots (<body> etc.) parse via
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DOMParser since <template> drops them. Known limits: no dynamic tag
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names, no holes in raw-text elements, SVG fragments need their <svg>
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root, and (unlike v7) whitespace is preserved as authored — which is
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what makes server and browser output byte-identical.
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2026-09-08 15:59:26 +02:00
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- `morph.js` — ← nanomorph 5.4.3, consolidated to one module
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- `raw.js` — mark pre-encoded strings (works with both renderers)
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- `packages/component` — `@choojs/component`: ← nanocomponent 6.6.0 +
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on-load 3.4.1 as ES classes; the future island/hydration boundary.
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- `examples/counter` — the isomorphic proof: one app module, mounted
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zero-build in the browser via import map (`index.html`), string-rendered
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in Node (`render.js`).
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## Status vs the modernization plan
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- [x] Phase 1: monorepo scaffold, ESM ports, choo v7 node test suite green
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on `node --test` (Node ≥ 24), CI on GitHub Actions
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2026-09-08 16:56:54 +02:00
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- [x] URL normalization fix: WHATWG URL parsing, single decode with raw
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fallback (no more URIError on '%'), NFC matching, per-segment
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wildcard decode, decoded state.href
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- [x] Phase 2 (core): browser renderer rewrite, `@choojs/component`,
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zero-build counter example, full-app integration test in happy-dom
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- [ ] Phase 2 (remaining): adoption-style hydration with mismatch
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warnings, Playwright suite in a real browser, benchmarks vs
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nanohtml v1 / µhtml
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- [ ] Phase 3: v8 wiring (`toStream`, devtools, codemod)
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- [ ] Phase 4: bankai v10 (Vite 8/Rolldown shell, SSR middleware,
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103 Early Hints, service worker, precompression)
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- [ ] Phase 5: docs, examples, launch
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## Deliberate changes from v7
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- `choo()` still works without `new`; `Choo` is also a named export.
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- nanoquery → `URLSearchParams` (same output shape, repeated keys → arrays).
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- Assertions live in `lib/assert.js` so production builds can strip them.
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- Everything targets Node ≥ 24 and Baseline Widely Available browsers; there
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is no compile step and no transpilation anywhere.
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## Attribution
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All ported modules are MIT-licensed work by the original choojs/nano*
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authors and contributors; per-file headers note the source package and
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version. This branch exists to carry that work forward, not to replace it.
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