Class: RuboCop::Cop::Elegant::OneClassPerFile

Inherits:
Base
  • Object
show all
Defined in:
lib/rubocop/cop/elegant/one_class_per_file.rb

Overview

Enforces one top-level class per file, treating empty class bodies as namespace scaffolding rather than real classes. An empty top-level class Foo::Bar; end resolves a parent namespace so that the actual class in the same file can use the compact-namespaced form required by Elegant/NoClassInModule without a circular require; it is not a class definition in its own right. Only when two or more top-level class bodies are non-empty does the cop register an offense, on every such class after the first.

Constant Summary collapse

MSG = 
'Only one non-empty class per file is allowed; %<name>s is the extra one'

Instance Method Summary collapse

Instance Method Details

#on_new_investigation ⇒ Object 



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# File 'lib/rubocop/cop/elegant/one_class_per_file.rb', line 18

def on_new_investigation
  real = tops.reject { |node| node.body.nil? }
  real.drop(1).each do |node|
    add_offense(node, message: format(MSG, name: label(node)))
  end
end