• aberba (2/2) Aug 20 2020 Wrote something on OpenSource.com
• user1234 (10/12) Aug 20 2020 I'm not sure. A few notes on nesting.
• H. S. Teoh (12/23) Aug 20 2020 The point is not to pollute module namespace with implementation details
• Martin Tschierschke (2/4) Aug 20 2020 Nice article! +1 up-vote!
• MrSmith (3/5) Aug 20 2020 The only nitpick, is that nested functions need to be declared
• aberba (4/10) Aug 20 2020 You're right. Missed that. Copy-pasting and using D and
• Walter Bright (2/5) Aug 21 2020 Very nice! Thank you, Lawrence!

aberba <karabutaworld gmail.com> writes:

Wrote something on OpenSource.com

https://opensource.com/article/20/8/nesting-d

user1234 <user1234 12.de> writes:

On Thursday, 20 August 2020 at 10:12:22 UTC, aberba wrote:
 Wrote something on OpenSource.com

 https://opensource.com/article/20/8/nesting-d

I'm not sure. A few notes on nesting.

1. context pointer can prevent inlining. you can nest static 
funcs, but then what is the point
2. bad complexity. you can make the nested funcs static and 
factor them out. The code is more readable.
3. lambda. If you want to nest lambda are better. Solves point 2 
but not point 1.

But otherwie still nice to see a bit of D promotion here and 
there ;)

"H. S. Teoh" <hsteoh quickfur.ath.cx> writes:

On Thu, Aug 20, 2020 at 10:20:59AM +0000, user1234 via Digitalmars-d-announce
wrote:
 On Thursday, 20 August 2020 at 10:12:22 UTC, aberba wrote:
 Wrote something on OpenSource.com
 
 https://opensource.com/article/20/8/nesting-d

 
 I'm not sure. A few notes on nesting.
 
 1. context pointer can prevent inlining. you can nest static funcs,
 but then what is the point

The point is not to pollute module namespace with implementation details
that are only relevant to that one function.

Also, if you're worried about inlining, use LDC instead of DMD. LDC is
well able to inline nested functions.  Don't make judgments based on the
DMD backend; it's well-known that its optimizer is ... sub-optimal...


 2. bad complexity. you can make the nested funcs static and factor
 them out.  The code is more readable.

[...]

The point is not to pollute module namespace with functions that are
only relevant as implementation details of one function.


T

-- 
First Rule of History: History doesn't repeat itself -- historians merely
repeat each other.

Martin Tschierschke <mt smartdolphin.de> writes:

On Thursday, 20 August 2020 at 10:12:22 UTC, aberba wrote:
 Wrote something on OpenSource.com

 https://opensource.com/article/20/8/nesting-d

Nice article! +1 up-vote!

MrSmith <mrsmith33 yandex.ru> writes:

On Thursday, 20 August 2020 at 10:12:22 UTC, aberba wrote:
 Wrote something on OpenSource.com

 https://opensource.com/article/20/8/nesting-d

The only nitpick, is that nested functions need to be declared 
before use, in order to compile.

aberba <karabutaworld gmail.com> writes:

On Thursday, 20 August 2020 at 11:22:53 UTC, MrSmith wrote:
 On Thursday, 20 August 2020 at 10:12:22 UTC, aberba wrote:
 Wrote something on OpenSource.com

 https://opensource.com/article/20/8/nesting-d

 The only nitpick, is that nested functions need to be declared 
 before use, in order to compile.

You're right. Missed that. Copy-pasting and using D and 
JavaScript at the same time.

I've notified that editors, it'll hopefully be corrected soon.

Walter Bright <newshound2 digitalmars.com> writes:

On 8/20/2020 3:12 AM, aberba wrote:
 Wrote something on OpenSource.com
 
 https://opensource.com/article/20/8/nesting-d

Very nice! Thank you, Lawrence!