Difference between revisions of "Coroutine.yield"
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'''val1''': (any) <translate>value to return from coroutine.resume call</translate> '''optional'''<br/> | '''val1''': (any) <translate>value to return from coroutine.resume call</translate> '''optional'''<br/> | ||
'''...''': (multiple) <translate>other optional values that will be returned from coroutine.resume call</translate> '''optional'''<br/> | '''...''': (multiple) <translate>other optional values that will be returned from coroutine.resume call</translate> '''optional'''<br/> | ||
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+ | {{Coroutine}} |
Revision as of 21:02, 11 February 2020
Available since: Gideros 2011.6
Class: coroutine
Description
In order for multiple coroutines to share execution they must stop executing (after performing a sensible amount of processing) and pass control to another thread. This act of submission is called yielding. Coroutines explicitly call a Lua function coroutine.yield(), which is similar to using return in functions. What differentiates yielding from function returns is that at a later point we can reenter the thread and carry on where we left off. When you exit a function scope using return the scope is destroyed and we cannot reenter it, e.g.,
coroutine.yield(val1,...)
Parameters
val1: (any) value to return from coroutine.resume call optional
...: (multiple) other optional values that will be returned from coroutine.resume call optional