Cost of using repeated parameters
- by Palimondo
I consider refactoring few method signatures that currently take parameter of type List or Set of concrete classes --List[Foo]-- to use repeated parameters instead: Foo*. This would allow me to use the same method name and overload it based on the parameter type. This was not possible using List or Set, because List[Foo] and List[Bar] have same type after erasure: List[Object].
In my case the refactored methods work fine with scala.Seq[Foo] that results from the repeated parameter. I would have to change all the invocations and add a sequence argument type annotation to all collection parameters: baz.doStuffWith(foos:_*).
Given that switching from collection parameter to repeated parameter is semantically equivalent, does this change have some performance impact that I should be aware of?
Is the answer same for scala 2.7._ and 2.8?
