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basta reported most of a real Vue, Svelte or Astro project as dead: on
thirty GitHub-trending projects in those three ecosystems it flagged 1572
unused files, and some import in the tree contradicted 78% of them. The
misses were almost never in the analysis itself; they were imports only the
project's own build knows how to resolve. This reads them the way the build
does.
- Single-file components are read whole. The script of a .vue, .svelte or
.astro file is masked in place so positions stay real, and the markup is
scanned for the names it reads: <Foo />, kebab-case spellings, {{ }}
interpolations, Svelte actions, attribute expressions, and a literal
import() written in markup.
- Aliases come from vite.config.* resolve.alias and svelte.config.* kit.alias
as well as tsconfig paths, and SvelteKit's $lib is known without the
generated .svelte-kit/tsconfig.json no repository commits. The project's
own declaration now wins over the ~/ @/ project-root fallback.
- A computed import whose static head names a directory,
import(`./pages/${name}.vue`), and import.meta.glob('./locales/*.js') are
expanded into one namespace edge per file there, the way a bundler hands
back whole module objects. Such an import no longer marks its module as
dynamic access, so the module's own findings keep their confidence.
- In a monorepo a package name resolves through that package's package.json,
exports subpath by subpath with source conditions preferred over ./dist,
anywhere in the workspace pnpm-workspace.yaml, lerna.json, turbo.json or a
workspaces field marks out.
- A path literal in a build config resolves against the project root, and
Nitro's api/, routes/ and middleware/ are file-system routes.
On the same thirty projects reported unused files fell from 1572 to 468.
fixtures/dead-code-demo gains components/, bundler/ and monorepo/. On master
the bundler demo reports five files as certainly dead, four of them wrongly;
the monorepo demo reports badge.ts, which the app imports by package name.
Both now report only what is dead. The quote-aware byte scanning the markup
and config readers share lives in one place, lang::Quotes and
lang::outside_strings, so rust/crates keeps master's 25 clones.