class RuboCop::Cop::Style::NegatedIf
Checks for uses of if with a negated condition. Only ifs without else are considered. There are three different styles:
- both - prefix - postfix
@example EnforcedStyle: both (default)
# enforces `unless` for `prefix` and `postfix` conditionals # bad if !foo bar end # good unless foo bar end # bad bar if !foo # good bar unless foo
@example EnforcedStyle: prefix
# enforces `unless` for just `prefix` conditionals # bad if !foo bar end # good unless foo bar end # good bar if !foo
@example EnforcedStyle: postfix
# enforces `unless` for just `postfix` conditionals # bad bar if !foo # good bar unless foo # good if !foo bar end
Public Instance Methods
autocorrect(node)
click to toggle source
# File lib/rubocop/cop/style/negated_if.rb, line 82 def autocorrect(node) ConditionCorrector.correct_negative_condition(node) end
on_if(node)
click to toggle source
# File lib/rubocop/cop/style/negated_if.rb, line 75 def on_if(node) return if node.unless? || node.elsif? || node.ternary? return if correct_style?(node) check_negative_conditional(node) end
Private Instance Methods
correct_style?(node)
click to toggle source
# File lib/rubocop/cop/style/negated_if.rb, line 92 def correct_style?(node) style == :prefix && node.modifier_form? || style == :postfix && !node.modifier_form? end
message(node)
click to toggle source
# File lib/rubocop/cop/style/negated_if.rb, line 88 def message(node) format(MSG, inverse: node.inverse_keyword, current: node.keyword) end