On 4/30/20 8:53 AM, Iain Sandoe wrote:
The problem here is that target cleanup expressions have been added to the initialisers for the awaitable (and returns of non-trivial values from await_suspend() calls). This is because the expansion of the co_await into its control flow is not apparent to the machinery adding the target cleanup expressions. The solution being tested is simply to recreate target expressions as the co_awaits are lowered. Teaching the machinery to handle walking co_await expressions in different ways at different points (outside the coroutine transformation) seems overly complex.
ok -- Nathan Sidwell
