[jira] Issue Comment Edited: (THRIFT-526) Generated Ruby enums have no good way to get the names back out once you have a number.

["Adam Coffman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/THRIFT-526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723379#action_12723379 ] 

Adam Coffman edited comment on THRIFT-526 at 6/23/09 5:24 PM:
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The patch I submitted generates a hash called VALUE_MAP that maps values back to their names (as strings) in ruby enums. It also includes a test for the added functionality.

      was (Author: thecoffman):
    Generates a hash called VALUE_MAP that maps values back to their names (as strings) in ruby enums.

Also includes a test.
  
> Generated Ruby enums have no good way to get the names back out once you have a number.
> ---------------------------------------------------------------------------------------
>
>                 Key: THRIFT-526
>                 URL: https://issues.apache.org/jira/browse/THRIFT-526
>             Project: Thrift
>          Issue Type: Improvement
>          Components: Compiler (Ruby)
>            Reporter: Adam Coffman
>            Priority: Minor
>         Attachments: thrift-526.patch
>
>
> Thrift enums are compiled into Ruby modules as Ruby has no native enum type. This works well except that without maintaining a separate map somewhere else or using reflection, it is impossible to get the names of the values back out from the values themselves. Essentially with this setup:
> module MyModule
>  DATAPOINT = 1
>  OTHERDATA = 2
> end
> If I have 2, it is very difficult to get "OTHERDATA" back out. It would be easier if thrift generated a static map from constant value to constant name. I am going to try and work on a patch for this. 

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