class RuboCop::Cop::Performance::EndWith
This cop identifies unnecessary use of a regex where `String#end_with?` would suffice.
@example
@bad 'abc' =~ /bc\Z/ 'abc'.match(/bc\Z/) @good 'abc'.end_with?('bc')
Constants
- MSG
- SINGLE_QUOTE
Public Instance Methods
autocorrect(node)
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# File lib/rubocop/cop/performance/end_with.rb, line 38 def autocorrect(node) redundant_regex?(node) do |receiver, regex_str| receiver, regex_str = regex_str, receiver if receiver.is_a?(String) regex_str = regex_str[0..-3] # drop \Z anchor regex_str = interpret_string_escapes(regex_str) lambda do |corrector| new_source = receiver.source + '.end_with?(' + to_string_literal(regex_str) + ')' corrector.replace(node.source_range, new_source) end end end
literal_at_end?(regex_str)
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# File lib/rubocop/cop/performance/end_with.rb, line 25 def literal_at_end?(regex_str) # is this regexp 'literal' in the sense of only matching literal # chars, rather than using metachars like . and * and so on? # also, is it anchored at the end of the string? regex_str =~ /\A(?:#{LITERAL_REGEX})+\\z\z/ end
on_send(node)
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# File lib/rubocop/cop/performance/end_with.rb, line 32 def on_send(node) return unless redundant_regex?(node) add_offense(node) end