- 25 名前：デフォルトの名無しさん mailto:sage [2007/04/10(火) 23:38:09 ]
- # abstract.rb
class Module
def abstract(*names)
if class_variables.size > 0 then
class_variable_get(:@@ABSTRACT_METHODS).push *names
else
class_variable_set :@@ABSTRACT_METHODS, names
end
end
end
module AbstractClass
def new(*args)
obj = super(*args)
class_variable_get(:@@ABSTRACT_METHODS).each do |m|
unless obj.methods.include?(m.to_s) then
raise format("Abstract method `%s' not defined", m.to_s)
end
end
return obj
end
end
