删除/取消定义另一个模块包含的类方法

发布于 2024-12-06 18:25:54 字数 774 浏览 4 评论 0 原文

我想删除通过 include 函数添加到我的类中的类方法。例如：

class Foo
    include HTTParty

    class << self
      remove_method :get
    end
end

这不起作用，它说“get”不是 Foo 上的方法。基本上，“get”方法是由 HTTParty 模块提供的，我想将其删除。我已经尝试了几次但没有运气。我读过/尝试过的事情：

原文

I'd like to remove a class method that gets added to my class via the include function. For example:

class Foo
    include HTTParty

    class << self
      remove_method :get
    end
end

This doesn't work, it says "get" isn't a method on Foo. Basically, the "get" method is provided the HTTParty module and I'd like to remove it. I've tried several attempts with no luck. Things I've read/tried:

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乙白 2024-12-13 18:25:54

使用 undef 而不是 remove_method：

require 'httparty'

class Foo
  include HTTParty
  class << self
    undef :get
  end
end

Foo.get #=> NoMethodError: undefined method `get' for Foo:Class

取消方法定义。 undef不能出现在方法中
身体。通过使用undef和alias，类的接口可以是
独立于超类进行修改，但请注意它可能会被破坏
程序通过内部方法调用self。
http://web.njit.edu/all_topics/Prog_Lang_Docs/html /ruby/syntax.html#undef

Use undef instead of remove_method:

require 'httparty'

class Foo
  include HTTParty
  class << self
    undef :get
  end
end

Foo.get #=> NoMethodError: undefined method `get' for Foo:Class

Cancels the method definition. Undef can not appear in the method
body. By using undef and alias, the interface of the class can be
modified independently from the superclass, but notice it may be broke
programs by the internal method call to self.
http://web.njit.edu/all_topics/Prog_Lang_Docs/html/ruby/syntax.html#undef