Passing one or more array as parameters into method in Swift

Question

I want to create a method that takes in one or more parameters but when I try the following code I get the following error message.

struct SomeStruct {
    static func method(arrays: AnyObject[]...) -> AnyObject[] {
        return []
    }
}
SomeStruct.method([1], [2])


Cannot convert the expression's type 'AnyObject[]' to type 'IntegerLiteralConvertible'

If I run the following code

SomeStruct.method(["1"], ["2"])

I get the following error

Cannot convert the expression's type 'AnyObject[]' to type 'ExtendedGraphemeClusterLiteralConvertible'

I want to allow 0 or more array of items to be passed into this method of any element type including numbers. How can I do this?

enter image description here

This code compiles and runs fine for me...If you're in the playground, try relaunching it. I've hit some bugs that left it wacky. — gwcoffey
– gwcoffey, Commented Jun 5, 2014 at 0:53
Attaching screenshot of the error I get in Playground. I am running Mac OS X Yosemite. Not sure if this is a bug. — Encore PTL
– Encore PTL, Commented Jun 5, 2014 at 2:02

Connor · Accepted Answer · 2014-06-06 00:09:44Z

1

I was able to get it to work by using a generic instead of AnyObject.

struct SomeStruct {
    static func method<T>(arrays: T[]...) -> T[] {
        return []
    }
}
SomeStruct.method([1], [2])

answered Jun 6, 2014 at 0:09

Connor

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