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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unintended or-assignment to a constant.
#
# Constants should always be assigned in the same location. And its value
# should always be the same. If constants are assigned in multiple
# locations, the result may vary depending on the order of `require`.
#
# @safety
# This cop is unsafe because code that is already conditionally
# assigning a constant may have its behavior changed by autocorrection.
#
# @example
#
# # bad
# CONST ||= 1
#
# # good
# CONST = 1
#
class OrAssignmentToConstant < Base
extend AutoCorrector
MSG = 'Avoid using or-assignment with constants.'
def on_or_asgn(node)
lhs, _rhs = *node
return unless lhs&.casgn_type?
add_offense(node.loc.operator) do |corrector|
next if node.each_ancestor(:def, :defs).any?
corrector.replace(node.loc.operator, '=')
end
end
end
end
end
end
Version data entries
150 entries across 149 versions & 16 rubygems