Function extractImportMappings

src/resolution/import-resolver.ts:577–610

(
  _filePath: string,
  content: string,
  language: Language
)

 * Extract import mappings from a file
 */
export function extractImportMappings(
  _filePath: string,
  content: string,
  language: Language
): ImportMapping[] {
  const mappings: ImportMapping[] = [];

  if (language === 'typescript' || language === 'javascript' || language === 'tsx' || language === 'jsx') {
    mappings.push(...extractJSImports(content));
  } else if (language === 'svelte' || language === 'vue' || language === 'astro') {
    // Svelte/Vue single-file components import via plain ES6 inside their
    // `<script>` block (Astro: the `---` frontmatter). Without this, a
    // `.svelte`/`.vue`/`.astro` consumer produces
    // zero import mappings, so `resolveViaImport` can't run and a barrel
    // import (`import { Foo } from './lib'`) falls back to name-matching —
    // which silently fails whenever the re-export alias differs from the
    // component's real name, yielding a false 0 callers (#629). The ES6
    // import regex only matches `import … from '…'`, so running it over the
    // whole SFC (markup + styles included) is safe.
    mappings.push(...extractJSImports(content));
  } else if (language === 'python') {
    mappings.push(...extractPythonImports(content));
  } else if (language === 'go') {
    mappings.push(...extractGoImports(content));
  } else if (language === 'java' || language === 'kotlin') {
    mappings.push(...extractJavaImports(content));
  } else if (language === 'php') {
    mappings.push(...extractPHPImports(content));
  } else if (language === 'c' || language === 'cpp') {
    mappings.push(...extractCppImports(content));
  }

  return mappings;
}

/**
 * Extract JS/TS import mappings