[Issue 23202] catch null dereferences at compille time

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23202

Dennis <dkorpel at live.nl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dkorpel at live.nl
           Hardware|x86_64                      |All
            Summary|assigning class.tupleof     |catch null dereferences at
                   |with a string segfaults at  |compille time
                   |runtime, also with @safe    |
                 OS|Linux                       |All
           Severity|normal                      |enhancement

--- Comment #1 from Dennis <dkorpel at live.nl> ---
S.init is `null`, which you dereference by accessing a member. `@safe` does not
prevent `null` dereferences, since those only abort the program, they don't
corrupt memory. The code is essentially doing this:

```
auto s = (cast(S)null).str;
```

Changing this to an enhancement.

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