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Versions: 13
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Stored size: 937 Bytes
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks whether constant names are written using
# SCREAMING_SNAKE_CASE.
#
# To avoid false positives, it ignores cases in which we cannot know
# for certain the type of value that would be assigned to a constant.
class ConstantName < Cop
MSG = 'Use SCREAMING_SNAKE_CASE for constants.'.freeze
SNAKE_CASE = /^[\dA-Z_]+$/
def on_casgn(node)
_scope, const_name, value = *node
# We cannot know the result of method calls like
# NewClass = something_that_returns_a_class
# It's also ok to assign a class constant another class constant
# SomeClass = SomeOtherClass
return if value && [:send, :block, :const].include?(value.type)
add_offense(node, :name) if const_name !~ SNAKE_CASE
end
end
end
end
end
Version data entries
13 entries across 13 versions & 2 rubygems