class StackProf::Report

def flamegraph_row(f, x, y, weight, addr)
  frame = @data[:frames][addr]
  f.print ',' if @rows_started
  @rows_started = true
  f.puts %{{"x":#{x},"y":#{y},"width":#{weight},"frame_id":#{addr},"frame":#{frame[:name].dump},"file":#{frame[:file].dump}}}
end