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Zd Zd Zd Zd ZdddZ ddl Z e j xZZ dS # e $ r Y dS w xY w)z.A Future class similar to the one in PEP 3148.)Future wrap_futureisfuture N) GenericAlias ) base_futures)events)
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Zd Zd Z d Z d Z dddZ d Z d Z!d Z"d Z#e#Z$dS )r a, This class is *almost* compatible with concurrent.futures.Future.
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- This class is not compatible with the wait() and as_completed()
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NFloopc |t j | _ n|| _ g | _ | j r-t j t j d | _ dS dS )zInitialize the future.
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rR r' r( r< s r r$ zFuture.exception sV ;* $ $,,..CI ;) # # ./FGG G $ r rF c | j t k r | j || | dS |t j }| j ||f dS )zAdd a callback to be run when the future becomes done.
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rF N)r? r@ r rG contextvars copy_contextr append)r fnr- s r add_done_callbackzFuture.add_done_callback sg ;( " " J T7 ; ; ; ; ;%244 O " "B= 1 1 1 1 1r c fd| j D }t | j t | z
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f%%%%%r c | sJ | rdS | rJ | r| dS | }|$| t | dS | }| | dS )zqInternal helper to copy state from another Future.
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