traits

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Reference a constructor argument from a trait

In Scala, is it possible for a trait to reference a named constructor argument of the class it is mixed into? The code below doesn\'t compile because ModuleDao\'s constructor argument is not a val as[详细]

2023-04-12 03:27 分类：问答
What is Scala's Comparable trait?

I am searching for Scala counterpart of C# IComparable, and I found Comparable trait. I mean -- Comparable is mentioned, but when I search for it at http://www.scala-lang.org/api/current/scala/ I get[详细]

2023-04-11 22:48 分类：问答
Behaviour of super in chained Scala traits

Why does x.func below return \"B extends B extends B\"? How to arrange this code so that it returns \"B extends A extends Base\"?[详细]

2023-04-11 19:46 分类：问答
Scala: Mix traits and case class in pattern match

I want to match on some case classes. If I don\'t know them, I want to match on a specified trait the 开发者_如何转开发classes have to extend. This looks like[详细]

2023-04-09 22:47 分类：问答
Mock classes with traits

Is there any library that provides tools for mocking classes with traits (both can be statefull)? Simplified example:[详细]

2023-04-09 18:24 分类：问答
python GUI frameworks / libraries suited for data analysis programs [closed]

Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-04-07 10:42 分类：问答
Can the stackable trait pattern be used with singleton objects?

I\'d like to use the stackable trait pattern with singleton objects, but i can\'t seem to find how to make the compiler happy:[详细]

2023-04-06 04:53 分类：问答
Inherit message handling behaviour

I have some events in my model and some handling logic. I want organize communication logic throw Actors. But how I can inherit handling logic without specifying act() in each concrete class[详细]

2023-04-05 08:15 分类：问答
Scala related trait, abstract types

I have 2 related traits.Dao will be used be a class and DaoHelper will be used by Dao\'s companion object.I would like trait Dao to be able use functions defined in DaoHelper, the only way I could fig[详细]

2023-04-05 06:44 分类：问答
Inferring mutually-dependent default method implementations in Scala

I\'d like to define a trait with some properties which have a well defined relationship - for example\'s sake, let\'s say that a * b = c.The idea is that implementations of this trait can provide two[详细]

2023-04-03 17:03 分类：问答