class RuboCop::Cop::Style::NumericLiterals
This cop checks for big numeric literals without _ between groups of digits in them.
@example
# bad 1000000 1_00_000 1_0000 # good 1_000_000 1000 # good unless Strict is set 10_000_00 # typical representation of $10,000 in cents
Constants
- DELIMITER_REGEXP
- MSG
Public Instance Methods
autocorrect(node)
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# File lib/rubocop/cop/style/numeric_literals.rb, line 45 def autocorrect(node) lambda do |corrector| corrector.replace(node.source_range, format_number(node)) end end
on_float(node)
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# File lib/rubocop/cop/style/numeric_literals.rb, line 41 def on_float(node) check(node) end
on_int(node)
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# File lib/rubocop/cop/style/numeric_literals.rb, line 37 def on_int(node) check(node) end
Private Instance Methods
check(node)
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# File lib/rubocop/cop/style/numeric_literals.rb, line 57 def check(node) int = integer_part(node) # TODO: handle non-decimal literals as well return if int.start_with?('0') return unless int.size >= min_digits case int when /^\d+$/ add_offense(node) { self.max = int.size + 1 } when /\d{4}/, short_group_regex add_offense(node) do self.config_to_allow_offenses = { 'Enabled' => false } end end end
format_int_part(int_part)
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@param int_part [String]
# File lib/rubocop/cop/style/numeric_literals.rb, line 92 def format_int_part(int_part) int_part = Integer(int_part) formatted_int = int_part .abs .to_s .reverse .gsub(/...(?=.)/, '\&_') .reverse formatted_int.insert(0, '-') if int_part.negative? formatted_int end
format_number(node)
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# File lib/rubocop/cop/style/numeric_literals.rb, line 78 def format_number(node) source = node.source.gsub(/\s+/, '') int_part, additional_part = source.split(DELIMITER_REGEXP, 2) formatted_int = format_int_part(int_part) delimiter = source[DELIMITER_REGEXP] if additional_part formatted_int + delimiter + additional_part else formatted_int end end
max_parameter_name()
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# File lib/rubocop/cop/style/numeric_literals.rb, line 53 def max_parameter_name 'MinDigits' end
min_digits()
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# File lib/rubocop/cop/style/numeric_literals.rb, line 104 def min_digits cop_config['MinDigits'] end
short_group_regex()
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# File lib/rubocop/cop/style/numeric_literals.rb, line 74 def short_group_regex cop_config['Strict'] ? /_\d{1,2}(_|$)/ : /_\d{1,2}_/ end