• Per =?UTF-8?B?Tm9yZGzDtnc=?= (3/3) Sep 27 2020 How do I defined an AA with class as key where keys are compared
• Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (5/8) Sep 27 2020 By looking at object.d and aaA.d of druntime, I d say you don't
• Per =?UTF-8?B?Tm9yZGzDtnc=?= (4/8) Sep 27 2020 That's gonna be much slower. And I need key's to be checked for
• Per =?UTF-8?B?Tm9yZGzDtnc=?= (3/6) Sep 27 2020 I got a good answer at
• Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (5/11) Sep 27 2020 Sorry I did not understand what you meant. It would be better if
• Per =?UTF-8?B?Tm9yZGzDtnc=?= (6/10) Sep 28 2020 In the case where the AA-KeyType is a class (which is represented
• Per =?UTF-8?B?Tm9yZGzDtnc=?= (4/8) Sep 28 2020 For D-classes this is the default. For extern(C++) classes it's

Per =?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

How do I defined an AA with class as key where keys are compared 
using `is` instead of `opEquals`? Do I have to store the key as a 
`void*`?

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= <aferust gmail.com> writes:

On Sunday, 27 September 2020 at 18:39:10 UTC, Per Nordlöw wrote:
 How do I defined an AA with class as key where keys are 
 compared using `is` instead of `opEquals`? Do I have to store 
 the key as a `void*`?

By looking at object.d and aaA.d of druntime, I d say you don't 
need to use void*. Object class has required infrastructure ready 
for using classes aa keys (have not tried though). Object class 
has both toHash and opEquals already implemented.

Per =?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Sunday, 27 September 2020 at 18:56:15 UTC, Ferhat Kurtulmuş 
wrote:
 By looking at object.d and aaA.d of druntime, I d say you don't 
 need to use void*. Object class has required infrastructure 
 ready for using classes aa keys (have not tried though). Object 
 class has both toHash and opEquals already implemented.

That's gonna be much slower. And I need key's to be checked for 
equivalence ,not equality.

Per =?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Sunday, 27 September 2020 at 18:39:10 UTC, Per Nordlöw wrote:
 How do I defined an AA with class as key where keys are 
 compared using `is` instead of `opEquals`? Do I have to store 
 the key as a `void*`?

I got a good answer at 
https://dlang.slack.com/archives/C1ZDHBB2S/p1601234030016700

Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= <aferust gmail.com> writes:

On Sunday, 27 September 2020 at 19:37:10 UTC, Per Nordlöw wrote:
 On Sunday, 27 September 2020 at 18:39:10 UTC, Per Nordlöw wrote:
 How do I defined an AA with class as key where keys are 
 compared using `is` instead of `opEquals`? Do I have to store 
 the key as a `void*`?

 I got a good answer at 
 https://dlang.slack.com/archives/C1ZDHBB2S/p1601234030016700

Sorry I did not understand what you meant. It would be better if 
you share the answer here. I found this also 
https://dlang.org/library/std/traits/key_type.html, but I dont 
know if it is related.

Per =?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Sunday, 27 September 2020 at 19:45:07 UTC, Ferhat Kurtulmuş 
wrote:
 Sorry I did not understand what you meant. It would be better 
 if you share the answer here. I found this also 
 https://dlang.org/library/std/traits/key_type.html, but I dont 
 know if it is related.

In the case where the AA-KeyType is a class (which is represented 
as a pointer in D) I want the equality (opEquals) and the hashing 
(toHash) of the AA to compare and hash the pointers themselves, 
not the fields the classes points to.

Per =?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Monday, 28 September 2020 at 08:26:15 UTC, Per Nordlöw wrote:
 In the case where the AA-KeyType is a class (which is 
 represented as a pointer in D) I want the equality (opEquals) 
 and the hashing (toHash) of the AA to compare and hash the 
 pointers themselves, not the fields the classes points to.

For D-classes this is the default. For extern(C++) classes it's 
not defined. That's why I added the struct wrapper on top of an 
extern(C++) class.