On Tuesday, 12 May 2015 at 16:51:53 UTC, H. S. Teoh wrote:
On Tue, May 12, 2015 at 08:54:01AM -0700, Walter Bright via
Digitalmars-d wrote:
https://i.stack.imgur.com/ssRUr.gif
Unfortunately, I think that requires D language extensions,
because
currently module-level operator overloading isn't possible,
which would
mean that it's impossible to overload the built-in integer
addition
operator with a jQuery integer addition function. Not
overloading
integer addition would be bad, because that's just yet another
evil bad
design inherited from C++, and if we're gonna implement
std.jquery, we
had better do it right and overload all built-in operators on
all
built-in types.
And of course, the new integer addition function must use
template
metaprogramming and ranges, because that's where we want D to
go right
now, so we must also make module-level template operator
overloading
possible, and make mockup integer types for input / forward /
bidirectional / random access ranges for adequate unittest
coverage.
There should also be ddoc comments thoroughly explaining all
possible
cases of integer addition along with their expected results.
This should
be reinforced by appropriate in/out contracts, too, which means
we'll
have to dig up that ugly old thread about why the current DbC
implementation in D is flawed.
All in all, I think this is a good direction to go in, but it
may
require too many language changes, which Walter probably
wouldn't
approve since it destabilizes the language. Perhaps there's a
way to do
it as a library extension using version(), static-if blocks,
and arcane
metaprogramming tricks involving __traits and CTFE. But Andrei
and the
other core devs is too busy to be working on low-level stuff
like this,
so where are those invisible champions who will push the PR
through to
completion? C'mon, people, stop writing essays on the forum,
and get
back onto GitHub; be the change that you wish to see happen!
T
I've started working on something. I'm currently stuck on making
$("int") get a range of all the integers in the process. Do we
have a trait or something I can use?
