Add CSS @import extraction from Svelte/Vue <style> blocks and standalone
CSS/SCSS/SASS/LESS files. Add path alias resolution from tsconfig.json /
jsconfig.json compilerOptions.paths with extends chain support.
Svelte and Vue files were included in the graph as leaf nodes (targets
of import edges) but their own imports were never extracted because
no ast-grep grammar exists for these languages.
This adds support by parsing .svelte/.vue files as HTML (built-in
grammar), extracting <script> block content, and re-parsing it as
TypeScript to extract imports using the existing JS/TS logic.
Changes:
- code-graph.ts: register .svelte and .vue in getAstGrepLang()
- graph-imports.ts: add Svelte/Vue script extraction handler; refactor
JS/TS import extraction into shared extractJsTsImportsFromNode()
helper to avoid duplication
- graph-resolution.ts: add "svelte" and "vue" cases to resolveImport(),
with .svelte/.vue as first-priority extension resolution
- graph-imports.test.ts: add tests for Svelte (static, dynamic, module,
no-script, JS-only) and Vue import extraction
Zero new dependencies — uses the built-in Lang.Html and Lang.TypeScript
grammars from @ast-grep/napi.
Known limitation: path aliases ($lib/, @/) are not resolved and will be
treated as external packages (same as current JS/TS behavior).
Csaba Tuncsik