Function collectModuleControllers

src/resolution/frameworks/nestjs.ts:601–611

* Walk every `@Module(...)` decorator and populate `out` with * `Controller → enclosingModuleClassName`, based on the decorator's * `controllers: [...]` field and the class declaration that follows the * decorator (skipping stacked decorators and export/default/abstract * modifiers).

(safe: string, out: Map<string, string>)

 * modifiers).
 */
function collectModuleControllers(safe: string, out: Map<string, string>): void {
  for (const hit of findDecorators(safe, ['Module'])) {
    const className = classNameAfter(safe, hit.end);
    if (!className) continue;
    for (const controller of parseControllersField(hit.args)) {
      // First-write-wins, same as RouterModule, so a controller listed in two
      // modules picks up the one declared earliest in source.
      if (!out.has(controller)) out.set(controller, className);
    }
  }
}

function parseControllersField(args: string): string[] {
  const inner = parseArrayField(args, 'controllers');