DIP1000: Scoped Pointers

[Bill Baxter via Digitalmars-d-announce]

This bit seems odd:

T func(T* t) {
  return t; // ok
}

Is there an implicit conversion from T* to T?


On Wed, Aug 10, 2016 at 10:05 PM, rikki cattermole via
Digitalmars-d-announce <digitalmars-d-announce at puremagic.com> wrote:

> On 11/08/2016 8:35 AM, Dicebot wrote:
>
>> The first DIP has just landed into the new queue. It is a proposal from
>> language authors and thus it bypasses usual nitpicking process and
>> proceeds straight to requesting community (your!) feedback.
>>
>> Essentially, it is an attempt to solve reference lifetime problem by
>> extending implementation of `scope` keyword.
>>
>> Proposal text: https://github.com/dlang/DIPs/blob/master/DIPs/DIP1000.md
>>
>> Few notes:
>>
>> - Please submit pull requests to adjust the markdown document if you
>> want to propose any improvements (mentioning @WalterBright and @andralex
>> for confirmation).
>> - The proposal refers to a number of other documents and it is
>> recommended to become familiar at least briefly with all of them.
>> - At this point the question I'd personally suggest to be evaluated is
>> "does this proposal enable enough useful designs?". A good check would
>> be to try taking some of your projects and see if having DIP1000
>> approved and implemented could improve them.
>>
>
> Question:
> I see RefCountedSlice example, does this mean if I alias this say like:
>
> struct FooBar;
>
> struct Foo {
>         FooBar* v;
>
>         scope FooBar* get() { return v; }
>         alias this get;
> }
>
> That it will operate correctly in the below case?
>
> func(myFoo);
> void func(scope FooBar*)
>
> If this does work, this is a major addition that I've been waiting for,
> for my managed memory concept! https://github.com/rikkimax/al
> phaPhobos/blob/master/source/std/experimental/memory/managed.d
> After this I'll only need proper ref counting in the language ;)
>
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