class RuboCop::Cop::Performance::DoubleStartEndWith
This cop checks for double `#start_with?` or `#end_with?` calls separated by `||`. In some cases such calls can be replaced with an single `#start_with?`/`#end_with?` call.
@example
@bad str.start_with?("a") || str.start_with?(Some::CONST) str.start_with?("a", "b") || str.start_with?("c") var1 = ... var2 = ... str.end_with?(var1) || str.end_with?(var2) @good str.start_with?("a", Some::CONST) str.start_with?("a", "b", "c") var1 = ... var2 = ... str.end_with?(var1, var2)
Constants
- MSG
Public Instance Methods
on_or(node)
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# File lib/rubocop/cop/performance/double_start_end_with.rb, line 29 def on_or(node) receiver, method, first_call_args, second_call_args = two_start_end_with_calls(node) if receiver && second_call_args.all?(&:pure?) add_offense( node, :expression, format( MSG, receiver: receiver.source, method: method, combined_args: combine_args(first_call_args, second_call_args), original_code: node.source ) ) end end
Private Instance Methods
combine_args(first_call_args, second_call_args)
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# File lib/rubocop/cop/performance/double_start_end_with.rb, line 52 def combine_args(first_call_args, second_call_args) (first_call_args + second_call_args).map(&:source).join(', ') end