rokumatsumoto/boyutluseyler

This cop checks for use of extend self or module_function in a module.

Supported styles are: modulefunction, extendself.

Example: EnforcedStyle: module_function (default)

# bad
module Test
  extend self
  # ...
end

# good
module Test
  module_function
  # ...
end

In case there are private methods, the cop won't be activated. Otherwise, it forces to change the flow of the default code.

Example: EnforcedStyle: module_function (default)

# good
module Test
  extend self
  # ...
  private
  # ...
end

Example: EnforcedStyle: extend_self

# bad
module Test
  module_function
  # ...
end

# good
module Test
  extend self
  # ...
end

These offenses are not safe to auto-correct since there are different implications to each approach.