Sha256: c72b5ea516a23807b2a52a1f6891b0221062d9c516f5533000a5a068ff1b2ff1
Contents?: true
Size: 852 Bytes
Versions: 4
Compression:
Stored size: 852 Bytes
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for inheritance from Struct.new.
#
# @example
# # bad
# class Person < Struct.new(:first_name, :last_name)
# end
#
# # good
# Person = Struct.new(:first_name, :last_name)
class StructInheritance < Cop
MSG = "Don't extend an instance initialized by `Struct.new`.".freeze
def on_class(node)
_name, superclass, _body = *node
return unless struct_constructor?(superclass)
add_offense(node, superclass.source_range, MSG)
end
def_node_matcher :struct_constructor?, <<-PATTERN
{(send (const nil :Struct) :new ...)
(block (send (const nil :Struct) :new ...) ...)}
PATTERN
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems