1130
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Ran 15 Dec 2017 06:31PM UTC

Jobs 1

Files 226

Run time 11s

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Build # 1130

Build Type

push

travis-ci

Committed by

pfalcon

Commit Message

py/objgenerator: Allow to pend an exception for next execution.

This implements .pend_throw(exc) method, which sets up an exception to be
triggered on the next call to generator's .__next__() or .send() method.
This is unlike .throw(), which immediately starts to execute the generator
to process the exception. This effectively adds Future-like capabilities
to generator protocol (exception will be raised in the future).

The need for such a method arised to implement uasyncio wait_for() function
efficiently (its behavior is clearly "Future" like, and normally would
require to introduce an expensive Future wrapper around all native
couroutines, like upstream asyncio does).

py/objgenerator: pend_throw: Return previous pended value.

This effectively allows to store an additional value (not necessary an
exception) in a coroutine while it's not being executed. uasyncio has
exactly this usecase: to mark a coro waiting in I/O queue (and thus
not executed in the normal scheduling queue), for the purpose of
implementing wait_for() function (cancellation of such waiting coro
by a timeout).

Run Details

17467 of 17840 relevant lines covered (97.91%)

318237.75 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	1130.1	15 Dec 2017 06:31PM UTC	0	97.91	Travis Job 1130.1

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