Nested render caching in Clearwater

gantt_chart.rb

class GanttChart
  include Clearwater::Component
  include Clearwater::CachedRender
  
  attr_reader :tasks
  
  def initialize(tasks)
    @tasks = tasks
  end
  
  def should_render?(previous)
    !tasks.equal?(previous.tasks)
  end
  
  def render
    div([
      TaskList.new(tasks),
    ])
  end
end

task.rb

class TaskList
  include Clearwater::Component
  include Clearwater::CachedRender
  
  attr_reader :task
  
  def initialize(task)
    @task = task
  end
  
  def should_render?(previous)
    !task.equal?(previous.task)
  end
  
  def render
    div([
      task.title,
    ])
  end
end

task_list.rb

class TaskList
  include Clearwater::Component
  include Clearwater::CachedRender
  
  attr_reader :tasks
  
  def initialize(tasks)
    @tasks = tasks
  end
  
  def should_render?(previous)
    !tasks.equal?(previous.tasks)
  end
  
  def render
    ul(tasks.map { |task|
      li({ key: task.id }, Task.new(task))
    })
  end
end