Improving assert-printing in DMD
Nordlöw via Digitalmars-d
digitalmars-d at puremagic.com
Mon Oct 26 10:36:35 PDT 2015
On Monday, 26 October 2015 at 15:17:37 UTC, Atila Neves wrote:
> Would `onAssertFailed` have an implementation in druntime?
Yes, that's my plan.
> If one is included with D after this DIP is implemented, how
> would one override the default behaviour?
> Do I understand it correctly that `assert(a == b)` and
> `assert(a != b)` would call different overloads?
That depends on how we want this to work.
> The reason I ask about that last one is because there's no
> overloading of `!=` in D.
>
> Atila
Ahh, good catch.
Eventhough compiler rewrites
X != Y
into
!(X == Y)
and we cannot explicit overload opBinary!"!=" there is nothing
stopping us allowing
onBinaryAssert!"!="
in the rewriter.
I'll update
http://wiki.dlang.org/DIP83
with a proposed solution for `!=`-lowering.
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