Module level variable shadowing

[Jacob Carlborg via Digitalmars-d]

On 2014-06-28 14:20, Ary Borenszweig wrote:

> In Ruby the usage of a variable is always prefixed: `@foo` for instance
> vars, `$foo` for global variable, `FOO` for constant. You can't make a
> mistake. It's... perfect :-)

Oh, that's where you're wrong, very wrong :). Take this for example:

class Foo
   attr_accessor :bar

   def initialize
     @bar = 3
   end

   def foo
     puts bar # prints "bar", the instance variable, via a getter
     bar = 4
     puts bar # prints "bar", the local variable
     puts self.bar # prints "bar", the instance variable, via a getter
   end
end

Foo.new.foo

-- 
/Jacob Carlborg