V8 AST

v8_ast_example.js

function test(x) {
  return x === 1;
}

if (test(2)) {
  print("no")
}

/* AST 

["FunctionLiteral",
  {"name":""},
  ["Declaration",
    {"mode":"VAR"},
    ["VariableProxy",
      {"name":"test",
       "mode":"DYNAMIC_GLOBAL"
      }
    ],
    ["FunctionLiteral",
      {"name":"test"},
      ["ReturnStatement",
        ["CompareOperation",
          {"op":"EQ_STRICT"},
          ["Slot",
            {"type":"PARAMETER",
             "index":0
            }
          ],
          ["Literal",
            {"handle":1}
          ]
        ]
      ]
    ]
  ],
  ["IfStatement",
    ["Call",
      ["VariableProxy",
        {"name":"test",
         "mode":"DYNAMIC_GLOBAL"
        }
      ],
      ["Literal",
        {"handle":2}
      ]
    ],
    ["Block",
      ["ExpressionStatement",
        ["Assignment",
          {"op":"ASSIGN"},
          ["Slot",
            {"type":"LOCAL",
             "index":0
            }
          ],
          ["Call",
            ["VariableProxy",
              {"name":"print",
               "mode":"DYNAMIC_GLOBAL"
              }
            ],
            ["Literal",
              {"handle":"no"}
            ]
          ]
        ]
      ]
    ],
    ["EmptyStatement"]
  ],
  ["ReturnStatement",
    ["Slot",
      {"type":"LOCAL",
       "index":0
      }
    ]
  ]
]
["FunctionLiteral",
  {"name":"test"},
  ["ReturnStatement",
    ["CompareOperation",
      {"op":"EQ_STRICT"},
      ["Slot",
        {"type":"PARAMETER",
         "index":0
        }
      ],
      ["Literal",
        {"handle":1}
      ]
    ]
  ]
]
*/