Function parseTurboModuleSpec

src/resolution/frameworks/react-native.ts:212–242

* Parse a TS file for a TurboModule spec declaration. The spec file is * the JS↔native source-of-truth in the new architecture — its interface * lists every JS-visible method, and a `TurboModuleRegistry.get* (...)` * default export pins the module name. * * Returns `null` when the file isn

(
  source: string
)

 * Returns `null` when the file isn't a TurboModule spec.
 */
function parseTurboModuleSpec(
  source: string
): { moduleName: string; methods: string[] } | null {
  // `TurboModuleRegistry.getEnforcing<Spec>('ModuleName')` or
  // `TurboModuleRegistry.get<Spec>('ModuleName')`. The literal must be a
  // single-or-double-quoted string.
  const regMatch = source.match(
    /TurboModuleRegistry\.(?:getEnforcing|get)\s*<[^>]*>\s*\(\s*['"]([^'"]+)['"]\s*\)/
  );
  if (!regMatch || !regMatch[1]) return null;
  const moduleName = regMatch[1];

  // Find `export interface Spec extends TurboModule { … }` and pull each
  // method declaration's name. We don't need types — just names.
  const ifaceMatch = source.match(
    /export\s+interface\s+Spec\b[^{]*\{([\s\S]*?)\n\}/
  );
  if (!ifaceMatch || !ifaceMatch[1]) return null;
  const body = ifaceMatch[1];

  const methods: string[] = [];
  // Method shape: `name(args): ReturnType;` or `name(): void;`. Skip
  // properties (no parens before colon).
  const methodRegex = /^\s*([A-Za-z_][A-Za-z0-9_]*)\s*\(/gm;
  let m: RegExpExecArray | null;
  while ((m = methodRegex.exec(body)) !== null) {
    const name = m[1];
    if (name) methods.push(name);
  }
  return { moduleName, methods };
}

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