(command.CommandList
  children: [
    (C {<echo>} {(DQ <'Testing rtop...'>)})
    (command.Pipeline
      children: [
        (C {<echo>} {(DQ <'let f a => a;'>)})
        (C {<utop>} {<-init>} {<src/rtop_init.ml>} {<-I>} {($ Id.VSub_DollarName '$HOME')})
        (command.Simple
          words: [{<grep>} {(DQ <"let f : 'a => 'a = <fun>">)}]
          redirects: [(redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{</dev/null>})]
        )
      ]
      negated: F
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (C {<Id.Lit_LBracket '['>} {($ Id.VSub_QMark '$?')} {<-ne>} {<0>} {<Id.Lit_RBracket ']'>})
              terminator: <Id.Op_Semi _>
            )
          ]
          action: [
            (C {<echo>} 
              {
                (DQ <'rtop is failing! Failed to evaluate '> 
                  (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\`'>) <'let f a => a;'> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\`'>)
                )
              }
            )
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [68 81]
        )
      ]
      else_action: [
        (command.Pipeline
          children: [
            (C {<echo>} 
              {
                (DQ <'let f a => 1 + '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) 
                  <hi> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <';'>
                )
              }
            )
            (C {<utop>} {<-init>} {<src/rtop_init.ml>} {<-I>} {($ Id.VSub_DollarName '$HOME')})
            (command.Simple
              words: [{<grep>} {(DQ <'Error: This expression has type'>)}]
              redirects: [(redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{</dev/null>})]
            )
          ]
          negated: F
        )
        (command.If
          arms: [
            (if_arm
              cond: [
                (command.Sentence
                  child: 
                    (C {<Id.Lit_LBracket '['>} {($ Id.VSub_QMark '$?')} {<-ne>} {<0>} 
                      {<Id.Lit_RBracket ']'>}
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
              action: [
                (C {<echo>} 
                  {
                    (DQ <'rtop is failing! Failed to (correctly) error on '> 
                      (word_part.EscapedLiteral
                        token: <Id.Lit_EscapedChar '\\`'>
                      ) <'let f a => 1 + '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <hi> 
                      (word_part.EscapedLiteral
                        token: <Id.Lit_EscapedChar '\\"'>
                      ) <';'> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\`'>)
                    )
                  }
                )
                (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
              ]
              spids: [140 153]
            )
          ]
        )
      ]
    )
  ]
)