root/cobra/trunk/Tests/240-generics/400-generic-methods/100-generic-method.cobra

class Test

    shared

        def main
            assert .join<of int>('', [1, 2, 3]) == '123'
            assert .join<of String>(' ', ['a', 'b', 'c']) == 'a b c'
            assert .same<of int>(5) == 5
            assert .same<of Type>(Test) == Test
            Test().run  # test generic methods that aren't shared

        def join<of T>(separator as String, stuff as IEnumerable<of T>) as String
            sb = StringBuilder()
            sep = ''
            for item in stuff
                sb.append(sep)
                sb.append(if(item is nil, 'nil', item.toString))  # use the CobraImp or CobraCore.toString()
                sep = separator
            return sb.toString

        def same<of T>(t as T) as T  # test return value
            x as T = t  # use generic type in body
            return x

    def run
        i = 5
        j = 6
        .take2(i, j)
        .swap(inout i, inout j)
        assert i == 6 and j == 5

    def take2<of T>(a as T, b as T)
        pass

    def swap<of T>(a as inout T, b as inout T)  # generic method with inout args
        tmp = a
        a = b
        b = tmp