extern(C) names are being mangled; that's crazy, Walter says I'm crazy

[Manu]

On Fri, Jul 26, 2019 at 6:00 AM Patrick Schluter via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
>
> On Wednesday, 24 July 2019 at 23:05:33 UTC, Walter Bright wrote:
> > On 7/24/2019 2:24 PM, Manu wrote:
> >> In that callback case, they're effectively anonymously named
> >> functions...
> >
> > Yet they are given a name, and extern(C) to get the right
> > calling convention.
>
> I think the issue here is one of definitions and I think I
> understand why Walter and Manu do not understand each others
> point.
>
> For Manu  extern(?) is mostly about mangling and secondarily
> about calling convention.
> For Walter, its first and foremost about calling convention. The
> mangling being unimportant as it can be explicitly set with
> mangle.
>
> When looking at what the specs says [1] it's clear that extern is
> more about calling conventions than mangling
>
> [1]: https://dlang.org/spec/attribute.html#linkage

I'm pretty sure it's about both... you can't separate them and still
be the thing that's written on the tin.
It's highly surprising, and I raise the issue as important having
recently witnessed multiple people being surprised and unimpressed
with this particular quirk. I've talked a lot about tidying up weird
shit that makes bad impressions; I'm getting tired of too many little
things adding up this way, and making it really hard for me to get
colleagues invested and build confidence, this is one such thing.