External methods are appearing as instance methods for String
It appears we're having methods creep into the String scope.
"".methods.count # => 170 defined? "".a # => nil def a "foo" end "".methods.count # => 171 defined? "".a # => "method" "bar".a # => "foo"
Updated by danielpclark (Daniel P. Clark) about 4 years ago
Those results were from IRB. Here's my results from a Ruby script.
puts "".methods.count puts defined? "".a def a "foo" end puts "".methods.count puts defined? "".a puts String.private_method_defined? :a puts String.instance_method(:a).owner puts "".send :a puts Array.private_method_defined? :a puts Array.instance_method(:a).owner puts .send :a
170 170 true Object foo true Object foo
It appears they are defined as private methods when run via
ruby and in
irb they run like they're not private methods.
Updated by codetodya (Sumit Mahamuni) about 4 years ago
It's not really a bug.
When you define following method. It is added on Object class. And any class which inherits from Object class will have following method.
You can try calling following method on any class which inherits Object class, you should get same output.
def a "foo" end