Add more types for Random #470
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soutaro
reviewed
Nov 11, 2020
| @@ -81,8 +134,9 @@ class Random < Object | |||
| # (`-`) and add (`+`)methods, or rand will raise an ArgumentError. | |||
| # | |||
| def rand: () -> Float | |||
| | (Integer | ::Range[Integer] max) -> Integer | |||
| | (Integer | ::Range[Integer] | Numeric max) -> Integer | |||
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Seems like having Numeric here will return Integer for any numbers including Float.
Moving this line after next line would give better type.
soutaro
reviewed
Nov 11, 2020
| | (Float | ::Range[Float] max) -> Float | ||
| | (::Range[Numeric]) -> Numeric |
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Yeah, the type we want would be [T <: Numeric] (Range[T]) -> T, but RBS currently doesn't allow writing it.
I think there are two options. [T] (Range[T]) -> T or (Range[Numeric]) -> Numeric. The first option would make sense in my opinion, because testing the code will uncover the problem anyway.
soutaro
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Nov 24, 2022
Add more types for Random (fix conflict #470)
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This is my first time writing RBS so I am not sure it is right, especially the tests.
I am not sure how to fully describe
randbecause it can return whatever type you give it, for example:In other words,
rand: (Range[SomeType]) -> SomeTypebut I don't know how to write that in RBS.(Also, I think
SomeTypemight have to be a descendent ofNumeric, but the documentation is not clear)