Module: MethodWatcher

Defined in:
lib/method_watcher.rb,
lib/method_watcher/version.rb

Constant Summary collapse

VERSION = 
"0.0.2"

Class Method Summary collapse

Class Method Details

.included(mod) ⇒ Object 



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# File 'lib/method_watcher.rb', line 11

def included mod
  MethodWatcher.init_method_watcher mod
  mod.singleton_class.class_eval do
    def watch_methods *methods
      if methods.empty?
        @_watch_method = true 
      else
        methods.each do |method|
          @_watch_methods[method.to_sym] = self
        end
      end
    end

    def unwatch_methods *methods
      if methods.empty?
        @_watch_method = false 
      else
        methods.each do |method|
          @_watch_methods.delete method.to_sym
        end
      end
    end

    def method_added method
      super
      if @_watch_methods.has_key?(method.to_sym)
        @_watch_methods[method].method_overriding method
      end

      watch_methods method if @_watch_method
    end

    def method_overriding method
      warn "method #{self}##{method} is overridden"
    end


    def inherited mod
      super
      MethodWatcher.init_method_watcher mod
    end
  end
end

.init_method_watcher(mod) ⇒ Object 



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# File 'lib/method_watcher.rb', line 5

def init_method_watcher mod
  super_watch_methods = (mod.respond_to?(:superclass) && mod.superclass && mod.superclass.instance_variable_get("@_watch_methods")) || {}
  mod.instance_variable_set "@_watch_methods", super_watch_methods.merge({})
  mod.instance_variable_set "@_watch_method", false
end