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Posted to dev@thrift.apache.org by "Vitali Lovich (JIRA)" <ji...@apache.org> on 2014/04/18 02:04:15 UTC

[jira] [Updated] (THRIFT-2473) _isset entries shouldn't be generated for non-optional fields

     [ https://issues.apache.org/jira/browse/THRIFT-2473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vitali Lovich updated THRIFT-2473:
----------------------------------

    Component/s: C++ - Compiler

> _isset entries shouldn't be generated for non-optional fields
> -------------------------------------------------------------
>
>                 Key: THRIFT-2473
>                 URL: https://issues.apache.org/jira/browse/THRIFT-2473
>             Project: Thrift
>          Issue Type: Bug
>          Components: C++ - Compiler
>            Reporter: Vitali Lovich
>
> There's quite a bit of memory overhead (4 bytes per field) that's wasted on every single type.  The __isset field is unused by the thrift type for fields not annotated optional.
> Additionally, it causes confusion in program code since people never know whether or not the __isset struct can be checked for a particular field or not (e.g. for non-optional fields it would never get set normally unless you deserialized it).



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