Instance member cannot be used on type

Question

I have the following class:

class ReportView: NSView {  
    var categoriesPerPage = [[Int]]()
    var numPages: Int = { return categoriesPerPage.count }
}
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Answer 1

Just in case someone really needs a closure like that, it can be done in the following way:

var categoriesPerPage = [[Int]]()
var numPagesClosure: ()->Int {
    return {
        return self.categoriesPerPage.count
    }
}