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digitalmars.D.learn - dlang vs crystal-language

reply Alain De Vos <devosalain ymail.com> writes:
What are the strengths and weaknesses comparing the two languages 
?
I can name a strength of dlang is the working binding to tk and 
gtk.
Apr 28 2021
next sibling parent reply Imperatorn <johan_forsberg_86 hotmail.com> writes:
On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk and 
 gtk.


Crystal has no installer for Windows
Apr 28 2021
parent reply Berni44 <someone somemail.com> writes:
On Thursday, 29 April 2021 at 05:41:45 UTC, Imperatorn wrote:

 Crystal has no installer for Windows


Is this a strength or a weakness? (SCNR)
Apr 28 2021
parent Imperatorn <johan_forsberg_86 hotmail.com> writes:
On Thursday, 29 April 2021 at 05:54:24 UTC, Berni44 wrote:

 On Thursday, 29 April 2021 at 05:41:45 UTC, Imperatorn wrote:

 Crystal has no installer for Windows


 Is this a strength or a weakness? (SCNR)


lol :)

In all seriousness though. Since it a quite large population of 
the world, it's a weakness.
Apr 29 2021
prev sibling next sibling parent Siemargl <inqnone gmail.com> writes:
On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk and 
 gtk.


Crystal is Web-only focused.

And Crystal is not popular, even compared to D.
Apr 28 2021
prev sibling next sibling parent reply sighoya <sighoya gmail.com> writes:
On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk and 
 gtk.


Less type annotations, fewer guarantees, less compile performance 
as cons.
Apr 29 2021
parent reply Alain De Vos <devosalain ymail.com> writes:
What is the importance of type-annotations in which cases.
 X  Y  Z makes code sometimes unreadable.
Sometimes there is a good reason
Apr 29 2021
parent sighoya <sighoya gmail.com> writes:
On Thursday, 29 April 2021 at 22:47:08 UTC, Alain De Vos wrote:

 What is the importance of type-annotations in which cases.


Specifying invariants which becomes very important when 
refactoring code.
Further it aids as documentation to understand the structures 
behind.


  X  Y  Z makes code sometimes unreadable.


You mean something like `List!(HashMap!(String,T))`, yes, but I 
like it in productive code.
It's often the case that verbosity becomes a plus in productive 
software development, as more people have to read code that to 
write it, a reason why Java is so successful


 Sometimes there is a good reason


Mostly for prototyping and obvious cases. But the most important 
point of that is to write faster, I wish the IDE would help for 
this instead of the compiler's inference.

I even think D doesn't even profit very well for inferred types, 
you need anyway to specify auto which only saves work for large 
type(application)s.
But when they are large, you probably want to prefer annotating 
the type for the variable.


to save typing and also being explicit about the type:
https://devblogs.microsoft.com/dotnet/welcome-to-c-9-0/#target-typed-new-expressions

In fact, one could imagine that they overload the new operator 
(at compiler level) to infer the type from the call site type 
annotation.
Apr 30 2021
prev sibling next sibling parent reply Vinod K Chandran <kcvinu82 gmail.com> writes:
On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk and 
 gtk.


Pros of **Crystal**
1. Attractive syntax. I like Ruby like syntax. It's really 
expressive.

Cons of Crystal
1. It doesn't have a compiler for Windows. It uses WSL based 
compiler and I think it's a bad idea.

I don't think I need to tell the pros & cons of **D lang** in 
it's own forum.
BTW, I wonder to see someone says that they have succeeded in 
compiling a **tkD** example code. I tried it with no luck. So I 
gave up that idea.
Apr 30 2021
next sibling parent reply Alain De Vos <devosalain ymail.com> writes:
tkd works perfectly. Which O.S. are you using ? I can guide.
Apr 30 2021
parent Vinod K Chandran <kcvinu82 gmail.com> writes:
On Friday, 30 April 2021 at 14:49:33 UTC, Alain De Vos wrote:

 tkd works perfectly. Which O.S. are you using ? I can guide.


I am using Windows 10 x64.
May 01 2021
prev sibling next sibling parent reply TheGag96 <thegag96 gmail.com> writes:
On Friday, 30 April 2021 at 14:16:16 UTC, Vinod K Chandran wrote:

 On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk 
 and gtk.


 Pros of **Crystal**
 1. Attractive syntax. I like Ruby like syntax. It's really 
 expressive.

 Cons of Crystal
 1. It doesn't have a compiler for Windows. It uses WSL based 
 compiler and I think it's a bad idea.

 I don't think I need to tell the pros & cons of **D lang** in 
 it's own forum.
 BTW, I wonder to see someone says that they have succeeded in 
 compiling a **tkD** example code. I tried it with no luck. So I 
 gave up that idea.


I used tkD a long time ago. Look through [this 
repo](https://github.com/thegag96/codewrite) - maybe something in 
there will help you.
Apr 30 2021
parent Vinod K Chandran <kcvinu82 gmail.com> writes:
On Friday, 30 April 2021 at 17:01:52 UTC, TheGag96 wrote:


 I used tkD a long time ago. Look through [this 
 repo](https://github.com/thegag96/codewrite) - maybe something 
 in there will help you.


Thanks for the link. Let me check.
May 01 2021
prev sibling next sibling parent reply Siemargl <inqnone gmail.com> writes:
On Friday, 30 April 2021 at 14:16:16 UTC, Vinod K Chandran wrote:

 BTW, I wonder to see someone says that they have succeeded in 
 compiling a **tkD** example code. I tried it with no luck. So I 
 gave up that idea.


I did this  2014. No problems remembered.
Apr 30 2021
parent Vinod K Chandran <kcvinu82 gmail.com> writes:
On Friday, 30 April 2021 at 19:25:16 UTC, Siemargl wrote:


 I did this  2014. No problems remembered.


May be it's my fault. Let me check once again.
May 01 2021
prev sibling parent reply Alain De Vos <devosalain ymail.com> writes:
On Friday, 30 April 2021 at 14:16:16 UTC, Vinod K Chandran wrote:

 On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk 
 and gtk.


 Pros of **Crystal**
 1. Attractive syntax. I like Ruby like syntax. It's really 
 expressive.

 Cons of Crystal
 1. It doesn't have a compiler for Windows. It uses WSL based 
 compiler and I think it's a bad idea.

 I don't think I need to tell the pros & cons of **D lang** in 
 it's own forum.
 BTW, I wonder to see someone says that they have succeeded in 
 compiling a **tkD** example code. I tried it with no luck. So I 
 gave up that idea.


What's wrong with WSL. I think it is a great idea.
May 05 2021
next sibling parent Imperatorn <johan_forsberg_86 hotmail.com> writes:
On Wednesday, 5 May 2021 at 18:50:05 UTC, Alain De Vos wrote:

 On Friday, 30 April 2021 at 14:16:16 UTC, Vinod K Chandran 
 wrote:

 On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos 
 wrote:

 [...]


 Pros of **Crystal**
 1. Attractive syntax. I like Ruby like syntax. It's really 
 expressive.

 Cons of Crystal
 1. It doesn't have a compiler for Windows. It uses WSL based 
 compiler and I think it's a bad idea.

 I don't think I need to tell the pros & cons of **D lang** in 
 it's own forum.
 BTW, I wonder to see someone says that they have succeeded in 
 compiling a **tkD** example code. I tried it with no luck. So 
 I gave up that idea.


 What's wrong with WSL. I think it is a great idea.


Maybe he meant WSL is good, but relying on it for Windows support 
is suboptimal. I kinda agree
May 05 2021
prev sibling parent Vinod K Chandran <kcvinu82 gmail.com> writes:
On Wednesday, 5 May 2021 at 18:50:05 UTC, Alain De Vos wrote:

 What's wrong with WSL. I think it is a great idea.


What Imperatorn said is the write thing. Sorry for not being 
clear.
May 05 2021
prev sibling parent reply sighoya <sighoya gmail.com> writes:
On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk and 
 gtk.


Just to say, Crystal is a neat language, feels like a static ruby.

Strengths:

- Poweful type inference
- lightweight julian/ruby like syntax
- nice lightweight macros, don't know if they were a good fit for 
D
- nice yield builtins
- feels like a lightweight Java
- nice high level feeling and is GCed

Weaknesses:

- as I said, it is hard to understand when type inference is used 
completely everywhere, said that this is crystals killer feature
- slow compilation time just because of the "type inferred 
everywhere" design
- the OOP system lacks specific features from other OOP systems
- hasn't the same support for low level programming as in D or Nim
- is relative unknown, although I don't know why.
May 01 2021
parent reply user1234 <user1234 12.de> writes:
On Saturday, 1 May 2021 at 13:04:15 UTC, sighoya wrote:

 On Wednesday, 28 April 2021 at 22:41:03 UTC, Alain De Vos wrote:

 What are the strengths and weaknesses comparing the two 
 languages ?
 I can name a strength of dlang is the working binding to tk 
 and gtk.


 Just to say, Crystal is a neat language, feels like a static 
 ruby.

 Strengths:

 - Poweful type inference
 - lightweight julian/ruby like syntax
 - nice lightweight macros, don't know if they were a good fit 
 for D
 - nice yield builtins
 - feels like a lightweight Java
 - nice high level feeling and is GCed

 Weaknesses:

 - as I said, it is hard to understand when type inference is 
 used completely everywhere, said that this is crystals killer 
 feature
 - slow compilation time just because of the "type inferred 
 everywhere" design


I seriously wonder if this is a criterion. For example Gitlab 
which is known to get updated each month, still uses Ruby in 
their backend. So their clients use scripts that could be 2x to 
20x faster if made in Crystal.


 - the OOP system lacks specific features from other OOP systems
 - hasn't the same support for low level programming as in D or 
 Nim
 - is relative unknown, although I don't know why.
May 03 2021
parent bachmeier <no spam.net> writes:
On Monday, 3 May 2021 at 12:02:50 UTC, user1234 wrote:


 I seriously wonder if this is a criterion. For example Gitlab 
 which is known to get updated each month, still uses Ruby in 
 their backend. So their clients use scripts that could be 2x to 
 20x faster if made in Crystal.


I don't think it makes any difference. They've rewritten the 
performance critical parts in Go as needed: 
https://about.gitlab.com/blog/2018/10/29/why-we-use-rails-to-build-gitlab/ I
very much doubt they'd trust their business to a small, work-in-progress
language like Crystal.
May 03 2021