Recent questions tagged typeclass

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typeclass - In scala, how to make type class working for Aux pattern?

Here is a simple example: trait Base { type Out def v: Out } object Base { type Aux[T] = Base { type ... questions/65838535/in-scala-how-to-make-type-class-working-for-aux-pattern...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typeclass - In scala, how to make type class working for Aux pattern? - Part 2

This is a follow up question of: In scala, how to make type class working for Aux pattern? Considering the following ... -how-to-make-type-class-working-for-aux-pattern-part-2...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typeclass - What's wrong with GHC Haskell's current constraint system?

I've heard that there are some problems with Haskell's "broken" constraint system, as of GHC 7.6 ... com/questions/12805335/whats-wrong-with-ghc-haskells-current-constraint-system...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typeclass - What's wrong with GHC Haskell's current constraint system?

I've heard that there are some problems with Haskell's "broken" constraint system, as of GHC 7.6 ... com/questions/12805335/whats-wrong-with-ghc-haskells-current-constraint-system...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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585 views

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typeclass - What's the difference between type and data type in Haskell?

I'm a little confused as to the difference between a type and a data type in Haskell. From the literature I ... /7916327/whats-the-difference-between-type-and-data-type-in-haskell...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typeclass - In scala 2.13, why is it sometimes impossible to summon type class explicitly? - Part 2

This is a follow up question of In scala 2.13, why is it sometimes impossible to summon type class explicitly ... Of course, without modifying the signature of the class HasValues)...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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