{ "type": "Script", "span": { "start": 75, "end": 129, "ctxt": 0 }, "body": [ { "type": "ClassDeclaration", "identifier": { "type": "Identifier", "span": { "start": 81, "end": 82, "ctxt": 0 }, "value": "A", "optional": false }, "declare": false, "span": { "start": 75, "end": 85, "ctxt": 0 }, "decorators": [], "body": [], "superClass": null, "isAbstract": false, "typeParams": null, "superTypeParams": null, "implements": [] }, { "type": "ClassDeclaration", "identifier": { "type": "Identifier", "span": { "start": 111, "end": 112, "ctxt": 0 }, "value": "B", "optional": false }, "declare": false, "span": { "start": 105, "end": 129, "ctxt": 0 }, "decorators": [], "body": [], "superClass": { "type": "CallExpression", "span": { "start": 121, "end": 126, "ctxt": 0 }, "callee": { "type": "Identifier", "span": { "start": 121, "end": 124, "ctxt": 0 }, "value": "err", "optional": false }, "arguments": [], "typeArguments": null }, "isAbstract": false, "typeParams": null, "superTypeParams": null, "implements": [] } ], "interpreter": null }