{ "type": "File", "start": 0, "end": 39, "loc": { "start": { "line": 1, "column": 0 }, "end": { "line": 5, "column": 1 } }, "errors": [ "SyntaxError: super can only be used with function calls (i.e. super()) or in property accesses (i.e. super.prop or super[prop]) (3:4)" ], "program": { "type": "Program", "start": 0, "end": 39, "loc": { "start": { "line": 1, "column": 0 }, "end": { "line": 5, "column": 1 } }, "sourceType": "script", "interpreter": null, "body": [ { "type": "ClassDeclaration", "start": 0, "end": 39, "loc": { "start": { "line": 1, "column": 0 }, "end": { "line": 5, "column": 1 } }, "id": { "type": "Identifier", "start": 6, "end": 7, "loc": { "start": { "line": 1, "column": 6 }, "end": { "line": 1, "column": 7 }, "identifierName": "A" }, "name": "A" }, "superClass": null, "body": { "type": "ClassBody", "start": 8, "end": 39, "loc": { "start": { "line": 1, "column": 8 }, "end": { "line": 5, "column": 1 } }, "body": [ { "type": "ClassMethod", "start": 12, "end": 37, "loc": { "start": { "line": 2, "column": 2 }, "end": { "line": 4, "column": 3 } }, "static": false, "key": { "type": "Identifier", "start": 12, "end": 13, "loc": { "start": { "line": 2, "column": 2 }, "end": { "line": 2, "column": 3 }, "identifierName": "x" }, "name": "x" }, "computed": false, "kind": "method", "id": null, "generator": false, "async": false, "params": [], "body": { "type": "BlockStatement", "start": 17, "end": 37, "loc": { "start": { "line": 2, "column": 7 }, "end": { "line": 4, "column": 3 } }, "body": [ { "type": "ExpressionStatement", "start": 23, "end": 33, "loc": { "start": { "line": 3, "column": 4 }, "end": { "line": 3, "column": 14 } }, "expression": { "type": "BinaryExpression", "start": 23, "end": 32, "loc": { "start": { "line": 3, "column": 4 }, "end": { "line": 3, "column": 13 } }, "left": { "type": "Super", "start": 23, "end": 28, "loc": { "start": { "line": 3, "column": 4 }, "end": { "line": 3, "column": 9 } } }, "operator": "-", "right": { "type": "NumericLiteral", "start": 31, "end": 32, "loc": { "start": { "line": 3, "column": 12 }, "end": { "line": 3, "column": 13 } }, "extra": { "rawValue": 1, "raw": "1" }, "value": 1 } } } ], "directives": [] } } ] } } ], "directives": [] } }