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  1. JDK
  2. JDK-8010803

Number to String conversion functionality overhaul

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    • Icon: Enhancement Enhancement
    • Resolution: Fixed
    • Icon: P4 P4
    • 9
    • 9
    • core-libs
    • None
    • b93
    • generic
    • generic

      Discussing this issue via skype and in the project meeting today, we concluded that the exact details of number-to-string conversion are very hard to get right and that it may be a good idea to rely on exising code and/or following other JS engines.

      The V8 team has split out their dtoa code into a separate BSD licensed project (http://code.google.com/p/double-conversion/). I have successfully ported an earlier version of that code to Java as part of Rhino (https://github.com/mozilla/rhino/tree/master/src/org/mozilla/javascript/v8dtoa)

      It seems like porting this to Java and submitting a request for inclusion into Nashorn is currently the best way to number-to-string conversion that is both fast and ES-compliant. Since such an inclusion would complicate the open source process we should wait with this until after open sourcing is completed.

        1.
        		 NumberToString should use new Big Number implementation introduced in JAVA7 Sub-task Closed Hannes Wallnoefer  

            hannesw Hannes Wallnoefer
            lagergren Marcus Lagergren
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