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  1. Node.js Driver
  2. NODE-6764

useBigInt64 deserializes negative numbers incorrectly

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Critical - P2 Critical - P2
    • bson-6.10.3
    • Affects Version/s: 6.13.0
    • Component/s: BSON
    • 3
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      2. Would you like the user to see examples of the syntax and/or executable code and its output?
      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

      Parsing negative numbers using `useBigInt64` appears to parse the number as an unsigned int64, instead of a signed int64.

       

      > bson = require('mongodb').BSON // OR: bson = require('bson')
> bson.deserialize(bson.serialize({a: -1n}), { useBigInt64: false })
{ a: -1 }
> bson.deserialize(bson.serialize({a: -1}), { useBigInt64: true })
{ a: -1 }
> bson.deserialize(bson.serialize({a: -1n}), { useBigInt64: true })
{ a: 18446744073709551615n }

      Tested with mongodb 6.13.0 / bson 6.10.2.

       

            Assignee:
            warren.james@mongodb.com Warren James
            Reporter:
            ralf@journeyapps.com Ralf Kistner
            Bailey Pearson, Durran Jordan
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              Created:
              Updated:
              Resolved: