Nim - Introducing --gc:arc

user7892 user7892 at
Fri Dec 27 06:27:42 UTC 2019

On Friday, 27 December 2019 at 02:30:32 UTC, Walter Bright wrote:
> On 12/25/2019 5:27 PM, JN wrote:
>> Some folks may find it interesting, Nim is introducing a new 
>> memory management scheme:
>> "So ... this feature has been in development for quite some 
>> time now, Nim is getting the "one GC to rule them all". 
>> However calling it a GC doesn't do it justice, it's plain old 
>> reference counting with optimizations thanks to move 
>> semantics."
> D gave up on ARC for the time being because it was too easy to 
> free an ARC object while retaining a live pointer to its 
> innards (as pointed out by Timon Gehr). The solution to this is 
> ownership/borrowing, which I am working on.

I have the feeling that their ARC is more like if in D you'd pass 
the arg to the compiler and then at compile another family of 
template hooks from druntime would be used.

Is that the plan to in D or people will have to mix the two 
worlds ?

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