Properties: a.b.c = 3

[Ary Borenszweig]

Andrei Alexandrescu wrote:
> Ary Borenszweig wrote:
>> Andrei Alexandrescu wrote:
>>> Bill Baxter wrote:
>>>> Yeh, I don't understand how any of this has anything to do with
>>>> properties.  It's the same question if you ask what should
>>>>
>>>>  a.b().c = 5
>>>>
>>>>  do.  It's the same issue whether you have properties or not, and
>>>> needs a solution whether you have properties or not.
>>>
>>> Well the problem is that a.b().c = 5 makes it clear that there's a 
>>> function call in the mix, so the field-like behavior is not 
>>> necessarily to be expected.
>>
>> No. Whenever you do
>>
>> Expression1 . Expression2 . Expression3 = Expression4.
>>
>> and Expression 2 is a struct type, and Expression 3 is not a static 
>> field of the struct, that should be an error.
> 
> I don't think D allows expressions to the right of ".".

Ok, then change the rule to

a . b . c  = d;

where b is an identifier or a function call, c is an identifier.