在块中运行方法类

Question

如何在ruby中的块中使用实例变量和方法？

class Foo
  @var = "my var"
  def meth()
    "my method"
  end

  Module.something do |variable|
    p @var    #=> Undefined
    p meth()  #=> Undefined
  end
end

Answer 1

我不确定我是否完全理解上下文，但这可能有所帮助：

class Foo
  def initialize
    @var = "my var"
  end
  def meth()
    "my method"
  end
  def fee
    AModule.something do |variable|
      p @var
      p meth() 
      p variable
    end
  end
end

# test:

module AModule
  def self.something
    yield "bar"
  end
end

foo = Foo.new
foo.fee