class RuboCop::AST::IfNode

def branches
  if ternary?
    [if_branch, else_branch]
  elsif !else?
    [if_branch]
  else
    branches = [if_branch]
    other_branches = if elsif_conditional?
                       else_branch.branches
                     else
                       [else_branch]
                     end
    branches.concat(other_branches)
  end
end