No informative message on errors

[juanjux]

On any error, the driver always returns "message is not defined", example:

{
    "status": "error",
    "language": "javascript",
    "errors": [
        "message is not defined"
    ],
    "ast": null
}

[zurk]

Yes, I see the same problem.
Python code:

import bblfsh
response = bblfsh.BblfshClient("0.0.0.0:9432").parse(filename="", contents="something random".encode(), language="Javascript")
print(response)

Result:

status: FATAL
errors: "message is not defined"
errors: "unsupported: non-object root node"
elapsed {
  nanos: 2309909
}
language: "javascript"