On Sunday, 29 November 2015 at 12:39:14 UTC, Joseph Rushton
Wakeling wrote:
On Sunday, 29 November 2015 at 04:57:28 UTC, Walter Bright
wrote:
Aliases do not change access permissions. They are just
aliases.
Note that this is a problem beyond Manu's use-case. Example:
subtyping via alias this currently requires the alias'd entity
to be public, contra the example given on TDPL p.231 (see
https://issues.dlang.org/show_bug.cgi?id=10996 for details).
This means that to use subtyping in practice requires internal
implementation details to be revealed to the user, which isn't
very nice :-(
As long as aliases effectively disappear in the compiler once a
replacement has been made, and they don't end up in error
messages, allowing aliases to muck with anything about the
original symbol seems like a recipe for disaster, though I can
certainly see why folks would want it (and arguably, it would be
a lot more user-friendly if the aliases showed up in the error
messages along with the original symbol rather than outright
disappearing).
- Jonathan M Davis
