ho_map.v

interface addOne_i;
   task automatic run (input integer a, output integer b);
      b = a + 1;
  endtask
endinterface

interface map_i #( parameter N=32, parameter type ELEMTYPE=logic )
                 ( interface f );                
  task automatic run ( input ELEMTYPE arg [N-1:0]
            , output ELEMTYPE res [N-1:0]);
    for (int mapIter=0; mapIter < N; mapIter+=1)
      f.run(arg[mapIter],res[mapIter]);
  endtask
endinterface

module top (input integer in [7:0], output integer out [7:0]);
  addOne_i addOne();
  map_i #(.N($size(in)),.ELEMTYPE(integer)) map(addOne);
  always_comb
    map.run(in,out);
endmodule