Removing methods from an inherited class

Ruby
1

Hi, if class A contains method “hello” and class B inherits from A, is
it possible to remove method “hello” in the definition of class B?
Maybe a workaround could be making “hello” method private in class B.

NOTE: I do know that I can override “hello” method (something as “def
hello; nil; end”) but I don’t want it.

Thanks for any suggestion.

2

On Fri, Mar 4, 2011 at 6:14 PM, Iñaki Baz C. [email protected]
wrote:

Hi, if class A contains method “hello” and class B inherits from A, is
it possible to remove method “hello” in the definition of class B?
Maybe a workaround could be making “hello” method private in class B.

NOTE: I do know that I can override “hello” method (something as “def
hello; nil; end”) but I don’t want it.

Are you looking to do this to make it use A#hello instead of B#hello ?
If
so, you might consider using super. That aside, you can look at
Kernel#undef_method and Kernel#remove_method (the two have different
semantics).

http://ruby-doc.org/core/classes/Module.html#M000446

3

2011/3/4 Adam P. [email protected]:

Are you looking to do this to make it use A#hello instead of B#hello ? If
so, you might consider using super. That aside, you can look at
Kernel#undef_method and Kernel#remove_method (the two have different
semantics).

class Module - RDoc Documentation

Kernel#undef_method is exactly what I was looking for :slight_smile:

Thanks a lot.