Add const-bool-like-effects syntax proposal #17
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yoshuawuyts
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Feb 27, 2023
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| !async fn size_hint(&self) -> (usize, Option<usize>); | ||
| // or | ||
| fn size_hint<effect !async>(&self) -> (usize, Option<usize>); | ||
| // or | ||
| fn size_hint(&self) -> (usize, Option<usize>) where effect !async; | ||
| // as opposed to `where A = !async` which would make this function | ||
| // only exist if we're in a context where `Iterator<A = true>` |
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There are three different variants shown here. Would all three variants be legal, or do you expect one should be chosen?
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As requested here