Not really at the same level, no. And it won't work with anything like `Future`
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Replying to @sgrif @JakeGoulding
I mean that kinda makes sense... I dunno what on earth `try`ing a Future means!
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Replying to @Gankra_ @JakeGoulding
And that's the part that makes it more generic and useful
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Replying to @sgrif @JakeGoulding
or it points to merging Future with Option/Result being completely muddied and problematic!
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Replying to @Gankra_ @JakeGoulding
So why is the first better than the second? https://gist.github.com/sgrif/f967116241999765e3f46506215ad8ae …
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Replying to @sgrif @JakeGoulding
also objectively this is the best x.flatMap { (y) in do_stuff(y) .flatMap { do_more_stuff(y, $0) }}
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Replying to @Gankra_ @JakeGoulding
Also that should probably be `flattenIntoSingleLevelAfterMappingWith: (y) in ...`
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Replying to @sgrif @JakeGoulding
You're right, &x.ft_mp(&mut || {;};);; is much more information-dense
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Replying to @jckarter @JakeGoulding
Lines like https://github.com/diesel-rs/diesel/blob/master/diesel/src/query_builder/mod.rs#L106 … are my favorite... (which could have been (&**self).to_sql(out))
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self.current_header.as_ref().map(|s| &**s).unwrap_or(""); gets me every time
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Seriously coercion needs to be separated from deref and be composeable
2:29 PM - 11 Aug 2016
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