,-------------------------------------------.                                                       
   |Fiber                                      |                                                       
   |-------------------------------------------|                                                       
   |Executor scheduler; // 调度器              |                                                       
   |FiberScope scope; // 关联的 FiberScope     |           ,------------------.                        
   |Thread carrierThread; // 执行线程          |           |Thread            |                        
   |Continuation cont; // 关联的 Continuation  |           |------------------|                        
   |Runnable runContinuation; // 调度执行的逻辑|           |Fiber<?> fiber;   |                        
   |short state; // Fiber 状态                 |           |FiberScope scope; |                        
   |Object result; // 执行结果                 |           |Continuation cont;|                        
   |-------------------------------------------|           |------------------|                        
   |+awaitTermination();                       |           `------------------'                        
   |+cancel();                                 |                     |                                 
   |+join();                                   |                     |                                 
   `-------------------------------------------'                     |                                 
                                                                     |                                 
                                                                     |                                 
                                   ,------------------------------------------------------------------.
,-------------------------------.  |FiberScope                                                        |
|Continuation                   |  |------------------------------------------------------------------|
|-------------------------------|  |Thread owner;                                                     |
|ContinuationScope scope;       |  |FiberScope parent;                                                |
|Runnable target;               |  |------------------------------------------------------------------|
|-------------------------------|  |FiberScope open();                                                |
|yield(ContinuationScope scope);|  |Fiber<V> schedule(Runnable task);                                 |
|run();                         |  |Fiber<V> schedule(Executor scheduler, Runnable task);             |
`-------------------------------'  |Fiber<V> schedule(Callable<? extends V> task);                    |
                |                  |Fiber<V> schedule(Executor scheduler, Callable<? extends V> task);|
                |                  `------------------------------------------------------------------'
                |                                                                                      
       ,-----------------.                                                                             
       |ContinuationScope|                                                                             
       |-----------------|                                                                             
       |String name;     |                                                                             
       |-----------------|                                                                             
       `-----------------'