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Contents
# encoding: utf-8
# frozen_string_literal: true
require 'rubocop'
module RuboCop
module Cop
module Sorbet
# This cop disallows use of `T.untyped` or `T.nilable(T.untyped)`
# as a prop type for `T::Struct`.
#
# @example
#
# # bad
# class SomeClass
# const :foo, T.untyped
# prop :bar, T.nilable(T.untyped)
# end
#
# # good
# class SomeClass
# const :foo, Integer
# prop :bar, T.nilable(String)
# end
class ForbidUntypedStructProps < RuboCop::Cop::Cop
MSG = 'Struct props cannot be T.untyped'
def_node_matcher :t_struct, <<~PATTERN
(const (const nil? :T) :Struct)
PATTERN
def_node_matcher :t_untyped, <<~PATTERN
(send (const nil? :T) :untyped)
PATTERN
def_node_matcher :t_nilable_untyped, <<~PATTERN
(send (const nil? :T) :nilable {#t_untyped #t_nilable_untyped})
PATTERN
def_node_matcher :subclass_of_t_struct?, <<~PATTERN
(class (const ...) #t_struct ...)
PATTERN
def_node_search :untyped_props, <<~PATTERN
(send nil? {:prop :const} _ {#t_untyped #t_nilable_untyped} ...)
PATTERN
def on_class(node)
return unless subclass_of_t_struct?(node)
untyped_props(node).each do |untyped_prop|
add_offense(untyped_prop.child_nodes[1])
end
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems