[yangshun]

Summary

The React, Vue, Svelte and Solid adapters each kept their own copy of build-plugin logic that is tied to core contracts. This moves those parts into core as plain helpers. Each adapter keeps its own Vite plugin object and its framework rendering and hydration codegen.

void/pages-islands-plugin

• createIslandManifest(root, extensions): resolves island imports to ids and pre-scans island pages and layouts. It follows the page scan model, so a new layout kind now needs one change instead of four.
• islandCssFiles(...) and generateIslandClientEntry(...): the islands client entry's CSS strategy (dev skip, server-recorded styles, fallback) and the initIslands runtime. Adapters pass in what is framework-specific: style-block imports for Vue and Svelte, and the hydrateIsland source.
• islandsBuildConfig(root, pagesDir): the islands-client build input.
• mdClientScriptIds(resolvedConfig): the void-md plugin API lookup. computePagesNeedingClientJS now uses it too.

void/pages

• PrefetchConfig (its cacheFor is now CacheForInput) and PagesPluginOptions. Each adapter's plugin-pages.ts re-exports PrefetchConfig, so the name stays the same.
• resolvePrefetchConfig(prefetch): the 75 ms / '30s' defaults, which were repeated in four codegen strings.

The adapter plugin-islands.ts files shrink by about 130–180 lines each.

Left in the adapters on purpose

Some code is repeated but differs by framework, or isn't tied to a core contract, so it stays where it is:

• the island renderer and page renderer/client codegen
• the island-import transforms and wrapper modules (Svelte's query-encoded wrapper ids, Solid's wrapper metadata, Vue's <script setup> injection)
• Svelte's style compile plugin and Vue's cssScopeTo handling
• the useForm warning
• Vue and Svelte's filename-based hasNonIslandPages (React and Solid use the scan). pages-plugin-adapters.test.ts pins this difference, so unifying it would be a separate behavior change.

Behavior changes

• In the no-server-build fallback, the list of island CSS files is now recomputed on each buildStart instead of accumulating across buildStart calls. In vite build --watch, a deleted island page's styles stop being imported. A single build is unchanged.
• Solid's generated islands client entry names its hydrate function hydrateIsland instead of mountIsland. This only changes generated code.
• resolveSpecifier now accepts a ReadonlyArray of extensions (type widening only).

Generated client and renderer output is otherwise unchanged.

Verification

• vp run --filter './packages/**' typecheck: all 12 packages pass. A full vp run check also typechecks playgrounds, which need vp run build:all first; I didn't run that locally.
• Unit tests for every adapter's plugin-islands and plugin-pages, plus pages-plugin-adapters, pages-islands-rescan and island-css-rewrite: 11 files, 175 tests pass.
• Every islands and pages integration test in the adapter packages and @void/md: 18 files, 259 tests pass.
• Full vp test run: 732 files pass and 31 fail. None of the failures come from this change:
  • 26 platform suites fail to load because this fresh worktree has no generated platform/packages/dashboard/.void/tsconfig.json.
  • astro dev, vinext-pages dev and cf-build-output timed out under full-suite load. All 3 files pass on their own (54 tests).
  • The health-script failure has the same tsconfig cause.

🤖 Generated with Claude Code

[cpojer]

Yay less code.