{
    "type": "Program",
    "body": [
        {
            "range": [
                0,
                32
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 0
                },
                "end": {
                    "line": 1,
                    "column": 32
                }
            },
            "type": "FunctionDeclaration",
            "id": {
                "range": [
                    9,
                    10
                ],
                "loc": {
                    "start": {
                        "line": 1,
                        "column": 9
                    },
                    "end": {
                        "line": 1,
                        "column": 10
                    }
                },
                "type": "Identifier",
                "name": "a"
            },
            "params": [
                {
                    "range": [
                        11,
                        12
                    ],
                    "loc": {
                        "start": {
                            "line": 1,
                            "column": 11
                        },
                        "end": {
                            "line": 1,
                            "column": 12
                        }
                    },
                    "type": "Identifier",
                    "name": "x"
                },
                {
                    "range": [
                        14,
                        15
                    ],
                    "loc": {
                        "start": {
                            "line": 1,
                            "column": 14
                        },
                        "end": {
                            "line": 1,
                            "column": 15
                        }
                    },
                    "type": "Identifier",
                    "name": "x"
                }
            ],
            "body": {
                "range": [
                    17,
                    32
                ],
                "loc": {
                    "start": {
                        "line": 1,
                        "column": 17
                    },
                    "end": {
                        "line": 1,
                        "column": 32
                    }
                },
                "type": "BlockStatement",
                "body": [
                    {
                        "range": [
                            18,
                            31
                        ],
                        "loc": {
                            "start": {
                                "line": 1,
                                "column": 18
                            },
                            "end": {
                                "line": 1,
                                "column": 31
                            }
                        },
                        "type": "ExpressionStatement",
                        "expression": {
                            "range": [
                                18,
                                30
                            ],
                            "loc": {
                                "start": {
                                    "line": 1,
                                    "column": 18
                                },
                                "end": {
                                    "line": 1,
                                    "column": 30
                                }
                            },
                            "type": "Literal",
                            "value": "use strict",
                            "raw": "'use strict'"
                        },
                        "directive": "use strict"
                    }
                ]
            },
            "generator": false,
            "expression": false,
            "async": false
        }
    ],
    "sourceType": "script",
    "tokens": [
        {
            "type": "Keyword",
            "value": "function",
            "range": [
                0,
                8
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 0
                },
                "end": {
                    "line": 1,
                    "column": 8
                }
            }
        },
        {
            "type": "Identifier",
            "value": "a",
            "range": [
                9,
                10
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 9
                },
                "end": {
                    "line": 1,
                    "column": 10
                }
            }
        },
        {
            "type": "Punctuator",
            "value": "(",
            "range": [
                10,
                11
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 10
                },
                "end": {
                    "line": 1,
                    "column": 11
                }
            }
        },
        {
            "type": "Identifier",
            "value": "x",
            "range": [
                11,
                12
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 11
                },
                "end": {
                    "line": 1,
                    "column": 12
                }
            }
        },
        {
            "type": "Punctuator",
            "value": ",",
            "range": [
                12,
                13
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 12
                },
                "end": {
                    "line": 1,
                    "column": 13
                }
            }
        },
        {
            "type": "Identifier",
            "value": "x",
            "range": [
                14,
                15
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 14
                },
                "end": {
                    "line": 1,
                    "column": 15
                }
            }
        },
        {
            "type": "Punctuator",
            "value": ")",
            "range": [
                15,
                16
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 15
                },
                "end": {
                    "line": 1,
                    "column": 16
                }
            }
        },
        {
            "type": "Punctuator",
            "value": "{",
            "range": [
                17,
                18
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 17
                },
                "end": {
                    "line": 1,
                    "column": 18
                }
            }
        },
        {
            "type": "String",
            "value": "'use strict'",
            "range": [
                18,
                30
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 18
                },
                "end": {
                    "line": 1,
                    "column": 30
                }
            }
        },
        {
            "type": "Punctuator",
            "value": ";",
            "range": [
                30,
                31
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 30
                },
                "end": {
                    "line": 1,
                    "column": 31
                }
            }
        },
        {
            "type": "Punctuator",
            "value": "}",
            "range": [
                31,
                32
            ],
            "loc": {
                "start": {
                    "line": 1,
                    "column": 31
                },
                "end": {
                    "line": 1,
                    "column": 32
                }
            }
        }
    ],
    "errors": [
        {
            "index": 14,
            "lineNumber": 1,
            "column": 15,
            "message": "Error: Line 1: Strict mode function may not have duplicate parameter names"
        }
    ],
    "range": [
        0,
        32
    ],
    "loc": {
        "start": {
            "line": 1,
            "column": 0
        },
        "end": {
            "line": 1,
            "column": 32
        }
    }
}