Function isObjcExposed

src/resolution/swift-objc-bridge.ts:273–276

(sourceSlice: string)

 * that `@nonobjc` opts out of class-level `@objcMembers`).
 */
export function isObjcExposed(sourceSlice: string): boolean {
  if (/@nonobjc\b/.test(sourceSlice)) return false;
  return /@objc\b/.test(sourceSlice);
}