Add new pattern: use custom traits to avoid complex type bounds #437
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Introducing traits as an abstraction should be obvious enough in many Rust projects. However, I often found myself introduce "random" type bounds involving `Fn` that would grow unwieldy first until I finally introduced a new trait. So maybe this is advise some people, especially new Rust users, will find useful.
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The style check currently fails, but I feel it's suggestions are wrong: they would result in a line longer than 80 characters, and they clearly don't handle footnotes correctly. Any suggestions for resolving this? |
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awesome. here is most heavy example of this usage i seen |
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Introducing traits as an abstraction should be obvious enough in many Rust projects. However, I often found myself introduce "random" type bounds involving
Fnthat would grow unwieldy first until I finally introduced a new trait. So maybe this is advise some people, especially new Rust users, will find useful.I did not include a Motivation section because I felt it was redundant. I also did not (yet) write a Discussion section. There are probably some similar uses of type classes in functional programming languages that we could refer to.