{ "type": "Script", "span": { "start": 1, "end": 14, "ctxt": 0 }, "body": [ { "type": "ExpressionStatement", "span": { "start": 1, "end": 14, "ctxt": 0 }, "expression": { "type": "UpdateExpression", "span": { "start": 1, "end": 13, "ctxt": 0 }, "operator": "++", "prefix": true, "argument": { "type": "NewExpression", "span": { "start": 4, "end": 13, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 8, "end": 11, "ctxt": 0 }, "value": "Foo", "optional": false }, "arguments": [], "typeArguments": null } } } ], "interpreter": null }