• Victor Porton (13/13) Feb 24 2019 From https://stackoverflow.com/q/54847333/856090 :
• Alexandru Ermicioi (13/26) Feb 24 2019 Just wondering, did you check existing implementations of
• Victor Porton (5/15) Feb 24 2019 I checked this page.
• Alexandru Ermicioi (6/22) Feb 24 2019 I have a bit of trouble understanding of what do you mean by pure
• Victor Porton (7/10) Feb 24 2019 I mean a framework for implementing pure dependency injection:

Victor Porton <porton narod.ru> writes:

 From https://stackoverflow.com/q/54847333/856090 :

I am reimplementing something like Python [Dependency 
Injector][1] in D programming language. I want to build a pure 
dependency injection framework for D.

Is [overriding of providers][2] considered bad practice? It seems 
that overriding of providers is clearly a nonlocal dependency and 
nonlocal dependencies are usually considered a bad practice by 
OOP theoretics.

So should I or should I not implement overriding of providers in 
my pure dependency injection framework for D?

   [1]: http://python-dependency-injector.ets-labs.org/
   [2]: 
http://python-dependency-injector.ets-labs.org/providers/overriding.html

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

On Sunday, 24 February 2019 at 10:36:40 UTC, Victor Porton wrote:
 From https://stackoverflow.com/q/54847333/856090 :

 I am reimplementing something like Python [Dependency 
 Injector][1] in D programming language. I want to build a pure 
 dependency injection framework for D.

 Is [overriding of providers][2] considered bad practice? It 
 seems that overriding of providers is clearly a nonlocal 
 dependency and nonlocal dependencies are usually considered a 
 bad practice by OOP theoretics.

 So should I or should I not implement overriding of providers 
 in my pure dependency injection framework for D?

   [1]: http://python-dependency-injector.ets-labs.org/
   [2]: 
 http://python-dependency-injector.ets-labs.org/providers/overriding.html

Just wondering, did you check existing implementations of 
dependency injection frameworks, such as 
https://code.dlang.org/packages/aedi or 
https://code.dlang.org/packages/poodinis before trying to 
implement yet another one?
If you did check them, I'm wondering, what deficiencies in those 
implementations you found that made you to attempt to create yet 
another DI framework?

Dlang also has a page with a list of existing DIs 
https://wiki.dlang.org/Dependency_Injection_Containers.

Thank you,
Alexandru.

Victor Porton <porton narod.ru> writes:

On Sunday, 24 February 2019 at 11:37:49 UTC, Alexandru Ermicioi 
wrote:
 Just wondering, did you check existing implementations of 
 dependency injection frameworks, such as 
 https://code.dlang.org/packages/aedi or 
 https://code.dlang.org/packages/poodinis before trying to 
 implement yet another one?
 If you did check them, I'm wondering, what deficiencies in 
 those implementations you found that made you to attempt to 
 create yet another DI framework?

 Dlang also has a page with a list of existing DIs 
 https://wiki.dlang.org/Dependency_Injection_Containers.

I checked this page.

I want a PURE dependency injection framework. Existing ones are 
impure.

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

On Sunday, 24 February 2019 at 12:44:14 UTC, Victor Porton wrote:
 On Sunday, 24 February 2019 at 11:37:49 UTC, Alexandru Ermicioi 
 wrote:
 Just wondering, did you check existing implementations of 
 dependency injection frameworks, such as 
 https://code.dlang.org/packages/aedi or 
 https://code.dlang.org/packages/poodinis before trying to 
 implement yet another one?
 If you did check them, I'm wondering, what deficiencies in 
 those implementations you found that made you to attempt to 
 create yet another DI framework?

 Dlang also has a page with a list of existing DIs 
 https://wiki.dlang.org/Dependency_Injection_Containers.

 I checked this page.

 I want a PURE dependency injection framework. Existing ones are 
 impure.

I have a bit of trouble understanding of what do you mean by pure 
DI framework. Would you mind explaining a bit what do you mean by 
that?

Thank you,
Alexandru.

Victor Porton <porton narod.ru> writes:

On Sunday, 24 February 2019 at 13:22:12 UTC, Alexandru Ermicioi 
wrote:
 I have a bit of trouble understanding of what do you mean by 
 pure DI framework. Would you mind explaining a bit what do you 
 mean by that?

I mean a framework for implementing pure dependency injection:

https://hackernoon.com/you-dont-need-a-dependency-injection-container-10a5d4a5f878

In the above article it is recommended to use no framework at 
all, but a framework is still useful to make such things as for 
example singletons.