Sha256: 7178aa20b8d92263a272a5fabccf87a4a8c412a4dd091d318b073c2306940dac
Contents?: true
Size: 1.21 KB
Versions: 241
Compression:
Stored size: 1.21 KB
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module InternalAffairs
# Checks that node destructuring is using the node extensions.
#
# @example Using splat expansion
#
# # bad
# _receiver, method_name, _arguments = send_node.children
#
# # bad
# _receiver, method_name, _arguments = *send_node
#
# # good
# method_name = send_node.method_name
class NodeDestructuring < Base
MSG = 'Use the methods provided with the node extensions instead ' \
'of manually destructuring nodes.'
# @!method node_variable?(node)
def_node_matcher :node_variable?, <<~PATTERN
{(lvar [#node_suffix? _]) (send nil? [#node_suffix? _])}
PATTERN
# @!method node_destructuring?(node)
def_node_matcher :node_destructuring?, <<~PATTERN
{(masgn (mlhs ...) {(send #node_variable? :children) (array (splat #node_variable?))})}
PATTERN
def on_masgn(node)
node_destructuring?(node) { add_offense(node) }
end
private
def node_suffix?(method_name)
method_name.to_s.end_with?('node')
end
end
end
end
end
Version data entries
241 entries across 232 versions & 24 rubygems