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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module RSpec
# Checks if there is an empty line after the last let block.
#
# @example
# # bad
# let(:foo) { bar }
# let(:something) { other }
# it { does_something }
#
# # good
# let(:foo) { bar }
# let(:something) { other }
#
# it { does_something }
class EmptyLineAfterFinalLet < Cop
MSG = 'Add an empty line after the last `let` block.'.freeze
def_node_matcher :let?, '(block $(send nil? {:let :let!} ...) args ...)'
def on_block(node)
return unless example_group_with_body?(node)
latest_let = node.body.child_nodes.select { |child| let?(child) }.last
return if latest_let.nil?
return if latest_let.equal?(node.body.children.last)
no_new_line_after(latest_let) do
add_offense(latest_let, location: :expression)
end
end
def autocorrect(node)
loc = last_node_loc(node)
->(corrector) { corrector.insert_after(loc.end, "\n") }
end
private
def no_new_line_after(node)
loc = last_node_loc(node)
next_line = processed_source[loc.line]
yield unless next_line.blank?
end
def last_node_loc(node)
last_line = node.loc.end.line
heredoc_line(node) do |loc|
return loc if loc.line > last_line
end
node.loc.end
end
def heredoc_line(node, &block)
yield node.loc.heredoc_end if node.loc.respond_to?(:heredoc_end)
node.each_child_node { |child| heredoc_line(child, &block) }
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems