On Thursday, 30 November 2017 at 06:44:43 UTC, Jonathan M Davis
wrote:
Object exists primarily because D didn't originally have
templates, and when you don't have templates, having a single
base class is the only way to have a function accept any class,
and for something like a container, you'd pretty much be forced
to use void* without Object if you don't have templates.
However, once templates were added to D, the benefits of Object
were significantly reduced, and it's arguably not a
particularly good idea to be writing code that operates on
Object. However, it's far too late in the game to get rid of
Object.
And they come in very handy when one ports code from Java. As a
first approach a simple 1 to 1 adaptation of the code makes the
porting so much easier. Templates and D magic can come afterwards.
