class RuboCop::AST::NodePattern::Compiler::SequenceSubcompiler

def compile_remaining
  offset = case @cur_index
           when :seq_head
             ' + 1'
           when :variadic_mode
             " - #{@cur_index_var}"
           when 0
             ''
           when POSITIVE
             " - #{@cur_index}"
           else
             # odd compiling condition, result may not be expected
             # E.g: `(... {a | b c})` => the b c branch can never match
             return - (@cur_index + DELTA)
           end
  "#{@seq_var}.children.size #{offset}"
end