http://d.puremagic.com/issues/show_bug.cgi?id=9395

           Summary: Allow deprecated statement in enum members
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: andrej.mitrovich@gmail.com


--- Comment #0 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-01-25 17:48:41 PST ---
Let's say you have an existing enum in your library API:

enum SpanMode
{
    depth,
    breadth,
    shallow,
}

At some point you may decide you want to rename some of the members, but want to avoid code breakage for at least some time. You could introduce additional members which have the same values as the old ones:

enum SpanMode
{
    deep,  // new
    wide,  // new
    shallow,

    depth = deep,  // old
    breadth = wide,  // old
}

This will work with switches, final switches, to!string, etc (although code that depends on EnumMembers!E.length could potentially break depending on what it does).

Don't mind the naming choice (it's just an example), but it would be useful to allow a deprecated statement in there, ala:

enum SpanMode
{
    deep,
    wide,
    shallow,

    deprecated("Please use SpanMode.deep")
    depth = deep,

    deprecated("Please use SpanMode.wide")
    breadth = wide,
}

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http://d.puremagic.com/issues/show_bug.cgi?id=9395


Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |code@dawg.eu


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-06-15 08:00:30 PDT ---
*** Issue 10362 has been marked as a duplicate of this issue. ***

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