(command.CommandList
  children: [
    (command.Pipeline
      children: [
        (C {(echo)} {(DQ ('int foo(void) { char X[200]; return 3; }'))})
        (command.SimpleCommand
          words: [
            {($ VSub_Star '$*')}
            {(-S)}
            {(-x)}
            {(c)}
            {(-c)}
            {(-O0)}
            {(-fstack-protector)}
            {(-)}
            {(-o)}
            {(-)}
          ]
          redirects: [(redir.Redir op:<Redir_Great '2>'> fd:2 arg_word:{(/dev/null)})]
        )
        (C {(grep)} {(-q)} {(DQ ('%gs'))})
      ]
      negated: F
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (C {(Lit_Other '[')} {(DQ ($ VSub_QMark '$?'))} {(-eq)} {(DQ (0))} {(Lit_Other ']')})
              terminator: <Op_Semi ';'>
            )
          ]
          action: [(C {(echo)} {(y)})]
        )
      ]
      else_action: [(C {(echo)} {(n)})]
    )
  ]
)