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https://issues.apache.org/jira/browse/THRIFT-532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12726665#action_12726665
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Bryan Duxbury commented on THRIFT-532:
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Hm, this is a good one. I haven't looked at your patch in detail yet, but I am
wondering, beyond fixing problems, will this change the numbering of people's
existing constants? If so, we must proceed with utmost caution with whatever
fix we incorporate.
> Implicit enum value generation is incorrect
> -------------------------------------------
>
> Key: THRIFT-532
> URL: https://issues.apache.org/jira/browse/THRIFT-532
> Project: Thrift
> Issue Type: Bug
> Components: Compiler (General)
> Affects Versions: 0.2
> Reporter: Ying-Yi Liang
> Priority: Minor
> Attachments: enum_value.diff
>
>
> For languages without native enum support (e.g. Java, PHP...), the Thrift
> compiler automatically assigns a value to enum members without explicit
> values. The current algorithm assumes explicit values are in ascending order,
> which does not always hold...
> See below for a violation case:
> enum ValueCollision {
> TWO,
> ONE = 1,
> THREE
> }
> The implicit value of TWO collides with ONE...A simple solution is to make
> the smallest implicit value greater than the largest explicit value.
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