Lift uses a PartialFunction on their implementation of Comet Actors, and you usually end up with this on your class:
Is there any quick way to use as a concrete function (of type, say, (A) => B) as a PartialFunction[A, B]?The most concise syntax I know of is:
PartialFunctions In Scala, a PartialFunction is, in short, a function that additionally defines an isDefinedAt method.
Consider the following: scala> object Currency extends Enumeration { |type Currency = Value |val USD = Value
Is there any way to create a PartialFunction except th开发者_Python百科rough the case statement?
I think I\'m missing something: scala> S开发者_StackOverflow中文版ome(1) collect ({ case n if n > 0 => n + 1; case _ => 0})
Given: def save(f: => Any)(run:Boolean) { if (run) { println(\"running f\"); f } else println(\"not running f\") }
I occasionally come across the following pattern, where I essentially have a PartialFunction[SomeType,AnotherType], and want to treat it as a Function[SomeType,Option[AnotherType], eg:
I\'m trying to design a couple of classes that inherit a partial function, but I don\'t seem to be able to get the syntax quite r开发者_如何学Goight. My superclass looks like this:
While creating a map of String to partial functions I ran into unexpected behavior.When I create a partial function as a map element it works fine.When I allocate to a val it invokes instead.Trying to
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