False positive with Style/StringMethods cop

[tfausak]

The Style/StringMethods cop appears to be a little overzealous when recommending to_sym over intern.

# Gemfile
source 'https://rubygems.org'
gem 'rubocop',
    github: 'bbatsov/rubocop',
    ref: 'c974769e9021949d545d7484490536d707a38cf1'

# example.rb
C = Class.new { def self.intern; end }
C.intern

> bundle exec rubocop -V
0.34.1 (using Parser 2.2.2.6, running on ruby 2.2.2 x86_64-darwin14)
> bundle exec rubocop -D example.rb 
Inspecting 1 file
C

Offenses:

example.rb:2:3: C: Style/StringMethods: Prefer to_sym over intern.
C.intern
  ^^^^^^

1 file inspected, 1 offense detected

[bbatsov]

Probably we should disable this cop by default. I was under the impression that only String had this method.

[tfausak]

I think that's true in the standard library, but there are many classes that define intern.

[tfausak]

👍