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https://issues.apache.org/jira/browse/THRIFT-1209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13280057#comment-13280057
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Nicholas Telford commented on THRIFT-1209:
------------------------------------------

I'm not convinced. Such a list would be pretty long since Thrift supports a 
fairly large number of languages. Maintaining that list would become a bit of a 
pain too; while most languages don't add reserved words all that often, when 
they do it's bound to be missed.

There's also the issue of backwards compatibility - existing Thrift IDLs would 
suddenly become invalid due to their usage of reserved words.

Finally, different languages approach reserved words differently. Scala for 
example permits them when surrounded in backticks; some words might be 
permissible in certain scopes (I can't think of any examples, but they may 
exist).

I suggest that language-specific IDL compilers specially treat identifiers that 
are a reserved word in that language by transforming them somehow, e.g. 
prefixing with an underscore as in my original example. This way, we can have a 
simple rule for each language: "if an IDL identifier is a PHP reserved word, it 
will be prefixed with an underscore" etc.

This differs from my previous suggestion by only transforming identifiers that 
are reserved words and leaving everything else as-is.
                
> PHP compiler generates syntax error when for enums containing constant 
> "GLOBAL"
> -------------------------------------------------------------------------------
>
>                 Key: THRIFT-1209
>                 URL: https://issues.apache.org/jira/browse/THRIFT-1209
>             Project: Thrift
>          Issue Type: Bug
>          Components: PHP - Compiler
>    Affects Versions: 0.6.1
>            Reporter: Nicholas Telford
>
> Reported on IRC:
> If an interface calls for an enum that defines a constant that's an invalid 
> identifier in PHP (e.g. "GLOBAL") the generated code contains a syntax error.
> Example, from the Hive Metastore Thrift interface:
> {code}
> enum HiveObjectType {
>   GLOBAL = 1,
>   DATABASE = 2,
>   TABLE = 3,
>   PARTITION = 4,
>   COLUMN = 5,
> }
> {code}
> Generates the following PHP:
> {code}
> final class metastore_HiveObjectType {
>   const GLOBAL = 1;
>   const DATABASE = 2;
>   const TABLE = 3;
>   const PARTITION = 4;
>   const COLUMN = 5;
>   static public $__names = array(
>     1 => 'GLOBAL',
>     2 => 'DATABASE',
>     3 => 'TABLE',
>     4 => 'PARTITION',
>     5 => 'COLUMN',
>   );
> }
> {code}
> I suggest we prefix enum constants to avoid this situation, although this 
> would mean the interface didn't match.

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