Monday, May 31, 2010

ruby alias_method for class methods

Generally, a ruby programmer could alias instance methods of a ruby object, but how could he alias class methods instead? The answer is he needs to understand how "self" works in ruby. If not yet knows, check out my presentation.

class Foo
def a; 'a'; end
alias_method :alias_for_a, :a

def self.b; 'b'; end
class <<self
alias_method :alias_for_b, :b


puts Foo.b
puts Foo.alias_for_b


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