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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (THRIFT-2642) Recursive structs don't work in python
Date Wed, 05 Jul 2017 22:24:00 GMT

    [ https://issues.apache.org/jira/browse/THRIFT-2642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075527#comment-16075527
] 

ASF GitHub Bot commented on THRIFT-2642:
----------------------------------------

Github user juliengreard commented on a diff in the pull request:

    https://github.com/apache/thrift/pull/1293#discussion_r125759386
  
    --- Diff: lib/py/src/ext/types.cpp ---
    @@ -20,6 +20,8 @@
     #include "ext/types.h"
     #include "ext/protocol.h"
     
    +#include <iostream>
    --- End diff --
    
    I usually include built-in lib first


> Recursive structs don't work in python
> --------------------------------------
>
>                 Key: THRIFT-2642
>                 URL: https://issues.apache.org/jira/browse/THRIFT-2642
>             Project: Thrift
>          Issue Type: Bug
>          Components: Python - Compiler, Python - Library
>    Affects Versions: 0.9.2
>            Reporter: Igor Kostenko
>            Assignee: Eric Conner
>
> Recursive structs in 0.9.2 work fine in c++ & c#, but not in python, because generated
code trying to use objects which not constructed yet.
> Struct:
> {code}
> struct Recursive {
> 1: list<Recursive> Children
> }
> {code}
> Python code:
> {code}
> class Recursive:
>   thrift_spec = (
>     None, # 0
>     (1, TType.LIST, 'Children', (TType.STRUCT,(Recursive, Recursive.thrift_spec)), None,
), # 1
>   )
> {code}
> Error message:
> {code}
> Traceback (most recent call last):
>   File "ttypes.py", line 20, in <module>
>     class Recursive:
>   File "ttypes.py", line 28, in Recursive
>     (1, TType.LIST, 'Children', (TType.STRUCT,(Recursive, Recursive.thrift_spec)), None,
), # 1
> NameError: name 'Recursive' is not defined
> {code}



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