写gem的时候常需要定义一些configuration，这个configuration是可以让用户自己重定义的，方法很多，这里说的是用 Struct ，这样的代码是最少的，很值得用
例子如下，lib/my_gem.rb
#encoding: utf-8
module MyGem
Configuration = Struct.new(:a, :b, :c).new(3,nil,4)
def self.configure
yield Configuration
end
end
p MyGem::Configuration.a
MyGem.configure do |config|
config.a = 2
config.b = 3
end
MyGem::Configuration.each_pair {|k,v| puts("#{k}" => "#{v}")}
Last modified by vkill on2011/11/14 15:50
例子如下，lib/my_gem.rb
#encoding: utf-8
module MyGem
Configuration = Struct.new(:a, :b, :c).new(3,nil,4)
def self.configure
yield Configuration
end
end
p MyGem::Configuration.a
MyGem.configure do |config|
config.a = 2
config.b = 3
end
MyGem::Configuration.each_pair {|k,v| puts("#{k}" => "#{v}")}
Last modified by vkill on2011/11/14 15:50
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