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Update function-coroutine-close.md

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Clarify behavior when calling coroutine.close repeatedly.
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Arseny Kapoulkine 2021-11-08 13:08:28 -08:00 • committed by GitHub
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rfcs/function-coroutine-close.md
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@ -22,7 +22,7 @@ We implement Lua 5.4 behavior exactly with the exception of to-be-closed variabl
The `co` argument must be a coroutine object (of type `thread`). The `co` argument must be a coroutine object (of type `thread`).
After closing the coroutine, it gets transitioned to dead state which means that `coroutine.status` will return `"dead"` and attempts to resume the coroutine will fail. In addition, the coroutine stack (which can be accessed via `debug.traceback` or `debug.info`) will become empty. After closing the coroutine, it gets transitioned to dead state which means that `coroutine.status` will return `"dead"` and attempts to resume the coroutine will fail. In addition, the coroutine stack (which can be accessed via `debug.traceback` or `debug.info`) will become empty. Calling `coroutine.close` on a closed coroutine will return the same information as it returned the first time - that is, `true` if the coroutine was in a non-error state when closed for the first time, and `false` plus the error object otherwise.
## Drawbacks ## Drawbacks