dgryski.semgrep-go.marshaljson.marshal-json-pointer-receiver

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MIT
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MarshalJSON with a pointer receiver has surprising results: https://github.com/golang/go/issues/22967

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rules:
  - id: marshal-json-pointer-receiver
    patterns:
      - pattern-either:
          - pattern: func ($T *$TYPE) MarshalJSON() ($DATA []byte, $ERR error)
          - pattern: func ($T *$TYPE) MarshalJSON() ([]byte, error)
    message: "MarshalJSON with a pointer receiver has surprising results:
      https://github.com/golang/go/issues/22967"
    languages:
      - go
    severity: ERROR
    metadata:
      license: MIT