A modern programming language that makes developers happier.

kotlinlang

:mega: I’m working on a change to the behavior of parent-child relations between coroutines for the upcoming release of `kotlinx.coroutines`. Parent will always wait for its children to complete. Details of the change are here: <https://github.com/Kotlin/kotlinx.coroutines/issues/125> Please, comment if you don’t think it is a good idea.

working on saturday? looks like you really love your job :wink: :thumbsup: 
btw, in new version, what will be happened with parent coroutine if we cancel it while child coroutine is suspended? is it cancels immediately or waits until all childs are done?

Canceling parent cancels all children, so child get cancelled out of its suspension, completes processing of whatever final sections it has, and then parent can compelete. 