| 39 | }; |
| 40 | |
| 41 | function lazyInitializer<T>(payload: Payload<T>): T { |
| 42 | if (payload._status === Uninitialized) { |
| 43 | const ctor = payload._result; |
| 44 | const thenable = ctor(); |
| 45 | thenable.then( |
| 46 | (moduleObject) => { |
| 47 | // @ts-ignore |
| 48 | const resolved: ResolvedPayload<T> = payload; |
| 49 | resolved._status = Resolved; |
| 50 | resolved._result = moduleObject; |
| 51 | }, |
| 52 | (error) => { |
| 53 | // @ts-ignore |
| 54 | const rejected: RejectedPayload = payload; |
| 55 | rejected._status = Rejected; |
| 56 | rejected._result = error; |
| 57 | } |
| 58 | ); |
| 59 | if (payload._status === Uninitialized) { |
| 60 | // @ts-ignore |
| 61 | const pending: PendingPayload = payload; |
| 62 | pending._status = Pending; |
| 63 | pending._result = thenable; |
| 64 | } |
| 65 | } |
| 66 | if (payload._status === Resolved) { |
| 67 | const moduleObject = payload._result; |
| 68 | return moduleObject.default; |
| 69 | } else { |
| 70 | throw payload._result; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | export function lazy<T>( |
| 75 | ctor: () => Thenable<{ default: T }> |