Re: how to assign to shared obj.systime?

[Steven Schveighoffer via Digitalmars-d-learn]

On 7/10/20 1:18 PM, mw wrote:
On Friday, 10 July 2020 at 08:48:38 UTC, Kagamin wrote:
On Friday, 10 July 2020 at 05:12:06 UTC, mw wrote:
looks like we still have to cast:
as of 2020, sigh.

Why not?

Because cast is ugly.

I've also tried this:
```
class A {
         SysTime time;
         synchronized setTime(ref SysTime t) {
                 time = t;
         }
}

void main() {
         shared A a = new A();
         SysTime time;
         a.setTime(time);
}
```

Same Error: template std.datetime.systime.SysTime.opAssign cannot deduce 
function from argument types !()(SysTime) shared, candidates are:
/usr/include/dmd/phobos/std/datetime/systime.d(659,17): opAssign()(auto 
ref const(SysTime) rhs)

However, we have a lock on the owning shared object, still we need cast 
to make it compile:
```
       cast()time = t;
```


Mark your setTime as shared, then cast away shared (as you don't need 
atomics once it's locked), and assign:

synchronized setTime(ref SysTime t) shared {
    (cast()this).time = t;
}

-Steve