[GSoC] Precise GC

[Rory McGuire via Digitalmars-d-announce]

On Fri, Sep 2, 2016 at 9:46 AM, Jeremy DeHaan via Digitalmars-d-announce <
digitalmars-d-announce at puremagic.com> wrote:

> [snip]. Precisely scanning unions is tricky since they could mix pointer
> and non pointer types. [snip]
>

Can we rather just make a special tagged union that is scanned... rather
avoid trying to make something that should be minimal more and more
complex? The compiler already treats some parts of phobos as "special" as
far as I know.
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