babel/packages/babel-parser/test/fixtures/experimental/pipeline-operator-hack/hack-caret-proposal-no-topic-function-expression/output.json

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  "errors": [
    "SyntaxError: Hack-style pipe body does not contain a topic reference; Hack-style pipes must use topic at least once. (1:9)"
  ],
  "program": {
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        "expression": {
          "type": "BinaryExpression",
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            "name": "value"
          },
          "operator": "|>",
          "right": {
            "type": "FunctionExpression",
            "start":9,"end":33,"loc":{"start":{"line":1,"column":9,"index":9},"end":{"line":1,"column":33,"index":33}},
            "id": null,
            "generator": false,
            "async": false,
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              {
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                "name": "x"
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              "body": [
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              "directives": []
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          }
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      }
    ],
    "directives": []
  }
}