Class: Module

Inherits:
Object
  • Object
show all
Defined in:
lib/watch_methods.rb

Instance Method Summary collapse

Instance Method Details

#method_added(meth) ⇒ Object 



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# File 'lib/watch_methods.rb', line 65

def method_added(meth)
  maybe_call_callback(meth, self)
end

#singleton_method_added(meth) ⇒ Object 



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# File 'lib/watch_methods.rb', line 69

def singleton_method_added(meth)
  context = class << self; self; end
  maybe_call_callback(meth, context)
end

#watch_methods(*watch_for, &blk) ⇒ Object 



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# File 'lib/watch_methods.rb', line 15

def watch_methods(*watch_for, &blk)
  class_methods = false
  once = false
  if watch_for.last.is_a? Hash
    opts = watch_for.pop
    class_methods = opts[:class_methods] || class_methods
    once = opts[:once] || once
  end

  context = class_methods ? (class << self; self; end) : self

  added_watcher = context.class_eval { @method_added_watcher ||= {} }

  watch_for.each do |f|
    key = case f
          when Regexp
            f
          when Symbol
            f.to_s
          when String
            f
          when Array
            f.each {|*sub_f| sub_f << opts if opts; watch_methods(*sub_f, &blk)}
            nil
          end


    if key
      added_watcher[key] = {:callback => blk, :once => once}
      if meth = context.instance_methods(false).find{|m| key.match(m.to_s)}
        call_callback(added_watcher, key, meth)
      end
    end
  end
end