module Surroundings

Public Class Methods

included(base) click to toggle source

# File lib/surroundings.rb, line 3
def self.included(base)
  base.instance_eval do
  
    def surrounding_macros
      @surrounding_macros ||= []
    end

    def inherited(subclass)
      subclass.instance_variable_set(:@surrounding_macros, self.surrounding_macros.dup)
      super
    end

    self.extend(Module.new {
      def new(*)
        instance = super
        self.surrounding_macros.each { |macro| 
          instance.extend macro 
        }
        return instance
      end
    })

    def before(method, *args, &block)
      self.surrounding_macros << Module.new do
        define_method method do |*args|
          self.instance_exec(*args, &block)
          super(*args)
        end
      end
    end

    def after(method, *args, &block)
      self.surrounding_macros << Module.new do
        define_method method do |*args|
          result = super(*args)
          self.instance_exec(*args, &block)
          result
        end
      end
    end
  
  end
end

Public Instance Methods

after(method, *args, &block) click to toggle source

Calls superclass method

# File lib/surroundings.rb, line 34
def after(method, *args, &block)
  self.surrounding_macros << Module.new do
    define_method method do |*args|
      result = super(*args)
      self.instance_exec(*args, &block)
      result
    end
  end
end

before(method, *args, &block) click to toggle source

Calls superclass method

# File lib/surroundings.rb, line 25
def before(method, *args, &block)
  self.surrounding_macros << Module.new do
    define_method method do |*args|
      self.instance_exec(*args, &block)
      super(*args)
    end
  end
end

inherited(subclass) click to toggle source

Calls superclass method

# File lib/surroundings.rb, line 10
def inherited(subclass)
  subclass.instance_variable_set(:@surrounding_macros, self.surrounding_macros.dup)
  super
end

surrounding_macros() click to toggle source

# File lib/surroundings.rb, line 6
def surrounding_macros
  @surrounding_macros ||= []
end