[jira] Resolved: (THRIFT-676) Change C++ code generator so that generated classes can be wrapped with SWIG

["David Reiss (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/THRIFT-676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Reiss resolved THRIFT-676.
--------------------------------

    Fix Version/s: 0.5
       Resolution: Fixed

> Change C++ code generator so that generated classes can be wrapped with SWIG
> ----------------------------------------------------------------------------
>
>                 Key: THRIFT-676
>                 URL: https://issues.apache.org/jira/browse/THRIFT-676
>             Project: Thrift
>          Issue Type: Improvement
>          Components: Compiler (C++)
>    Affects Versions: 0.3
>         Environment: Any C++
>            Reporter: Rush Manbert
>             Fix For: 0.5
>
>         Attachments: patchThrift-676.txt
>
>
> There are times when it would be beneficial to wrap Thrift-generated C++ classes with the SWIG tool (http://www.swig.org). This is a problem, though, because SWIG does not yet handle nested class or structure definitions and the C++ code generator defines the __isset structure within the scope of the class definition to which it pertains.
> In order to make the Thrift-generated classes wrappable by SWIG, the __isset structure definition needs to be moved outside of the class definition. For a Thrift generated class called foo, the __isset definition would look like this:
> typedef struct _foo__isset {
>   _foo__isset() : member0(false), member1(false) {}
>   bool member0;
>   bool member1;
> } _foo__isset;
> and the using class would contain this line:
> _foo__isset __isset;
> All existing code will continue to work, and can be regenerated at will.
> I have a patch for this.

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