{ "type": "File", "start":0,"end":17,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":17}}, "program": { "type": "Program", "start":0,"end":17,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":17}}, "sourceType": "script", "interpreter": null, "body": [ { "type": "ExpressionStatement", "start":0,"end":17,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":17}}, "expression": { "type": "ArrowFunctionExpression", "start":0,"end":17,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":17}}, "id": null, "generator": false, "async": false, "params": [ { "type": "AssignmentPattern", "start":1,"end":10,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":10}}, "left": { "type": "Identifier", "start":1,"end":2,"loc":{"start":{"line":1,"column":1},"end":{"line":1,"column":2},"identifierName":"x"}, "name": "x" }, "right": { "type": "Identifier", "start":5,"end":10,"loc":{"start":{"line":1,"column":5},"end":{"line":1,"column":10},"identifierName":"yield"}, "name": "yield" } } ], "body": { "type": "BlockStatement", "start":15,"end":17,"loc":{"start":{"line":1,"column":15},"end":{"line":1,"column":17}}, "body": [], "directives": [] } } } ], "directives": [] } }