在 Ruby中,如何从父类访问调用类的常量？ Module Foo class Base def test() #how do I access calling class's constants here? #ex: CallingClass.SOME_CONST end endendclass Bar Foo::Base SOME_CONST = 'test'end 这似乎有效 – 它
Module Foo
class Base
def test()
#how do I access calling class's constants here?
#ex: CallingClass.SOME_CONST
end
end
end
class Bar < Foo::Base
SOME_CONST = 'test'
end
这似乎有效 – 它强制不断查找范围到当前实例的类
module Foo
class Base
def test
self.class::SOME_CONST
end
end
end
class Bar < Foo::Base
SOME_CONST = 'test'
end
Bar.new.test # => 'test'