我想为我的班级建造DSL
class Car
brand :mercedes
end
我要写什么代码?
brand 应该是一种方法。 它必须定义在某处。 您有选项: 同一类、 父类或混合模块。 我喜欢模块 。
module MyDSL
def brand name
puts "Got brand #{name}"
end
end
class Car
extend MyDSL
brand :mercedes
end
# >> Got brand mercedes
在回答你的具体问题时,我强烈建议得到这本书:Metaprograming Ruby 。看来你会在那里找到很多答案。
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