Postblit bug
IgorStepanov via Digitalmars-d
digitalmars-d at puremagic.com
Fri Oct 17 12:39:39 PDT 2014
On Friday, 17 October 2014 at 17:25:47 UTC, monarch_dodra wrote:
> On Friday, 17 October 2014 at 16:19:47 UTC, IgorStepanov wrote:
>> It's just common words=)
>> I meant that when postblit is called when new object is being
>> creating and doesn't exists for user code.
>> E.g.
>> const S v1 = v2;
>> Ok, v1 _will_ be const when it will be _created_.
>> However postblit can think that object is mutable, because it
>> called before the first accessing to the object from user code.
>> Thus I ask about case when postblit may mutate a const object,
>> which created before postblitted object and may been accessed
>> from user code before this postblitting.
>
> That's way too many words for a single sentence for me to
> understand ;)
Yes, my english is so bad:)
> But maybe this answers your question?
Yes, I've understood.
TBH, I have got this error while I am working on new AA, and I
want to fix it as posdible faster (one way or another).
I have the next code:
struct AssociativeArray(Key, Value)
{
...
struct Entry
{
Key key;
Value value;
...
}
}
If key or value is a const struct with postblit I have got a
error.
I don't need an any postblit in Entry.
Thus I suggest another solution:
Do not generate helper functions like __fieldPostBlit, if struct
has a @disabled this(this);
Destroy it.
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