Sha256: 26711c38eaff1ccf50be8457329e00caae7ab6178f9c6f90592ee71c5572dd46
Contents?: true
Size: 993 Bytes
Versions: 5
Compression:
Stored size: 993 Bytes
Contents
# encoding: utf-8
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`."
def on_class(node)
_name, superclass, _body = *node
return unless struct_constructor?(superclass)
add_offense(node, superclass.loc.expression, MSG)
end
private
def struct_constructor?(node)
if node && node.send_type?
receiver, method_name = *node
receiver &&
receiver.const_type? &&
receiver.children.last == :Struct &&
method_name == :new
else
false
end
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems