class RuboCop::Cop::Rails::RelativeDateConstant
This cop checks whether constant value isn't relative date. Because the relative date will be evaluated only once.
@example
# bad class SomeClass EXPIRED_AT = 1.week.since end # good class SomeClass EXPIRES = 1.week def self.expired_at EXPIRES.since end end # good class SomeClass def self.expired_at 1.week.since end end
Constants
- MSG
- RELATIVE_DATE_METHODS
Public Instance Methods
on_casgn(node)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 38 def on_casgn(node) nested_relative_date(node) do |method_name| add_offense(node, message: message(method_name)) do |corrector| autocorrect(corrector, node) end end end
on_masgn(node)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 46 def on_masgn(node) lhs, rhs = *node return unless rhs&.array_type? lhs.children.zip(rhs.children).each do |(name, value)| next unless name.casgn_type? nested_relative_date(value) do |method_name| add_offense(offense_range(name, value), message: message(method_name)) do |corrector| autocorrect(corrector, node) end end end end
on_or_asgn(node)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 62 def on_or_asgn(node) relative_date_or_assignment(node) do |method_name| add_offense(node, message: format(MSG, method_name: method_name)) end end
Private Instance Methods
autocorrect(corrector, node)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 70 def autocorrect(corrector, node) return unless node.casgn_type? scope, const_name, value = *node return unless scope.nil? indent = ' ' * node.loc.column new_code = ["def self.#{const_name.downcase}", "#{indent}#{value.source}", 'end'].join("\n#{indent}") corrector.replace(node.source_range, new_code) end
message(method_name)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 84 def message(method_name) format(MSG, method_name: method_name) end
nested_relative_date(node, &callback)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 92 def nested_relative_date(node, &callback) return if node.block_type? node.each_child_node do |child| nested_relative_date(child, &callback) end relative_date(node, &callback) end
offense_range(name, value)
click to toggle source
# File lib/rubocop/cop/rails/relative_date_constant.rb, line 88 def offense_range(name, value) range_between(name.loc.expression.begin_pos, value.loc.expression.end_pos) end