• eles (10/10) Oct 07 2014 Hello everybody,
• H. S. Teoh via Digitalmars-d (8/13) Oct 07 2014 [...]
• Jonathan (5/5) Oct 07 2014 What are some "common uses" for multiple aliasing? I understand
• Jonathan (3/3) Oct 07 2014 Btw, is the C++ equivalent (roughly) to this be the casting
• ketmar via Digitalmars-d (3/5) Oct 07 2014 it was already discussed in this NG.
• Dicebot (3/8) Oct 07 2014 Multiple inheritance of implementation for structs + implicit
• H. S. Teoh via Digitalmars-d (6/16) Oct 07 2014 Also, transparent proxying of heterogenous interfaces. TDPL contains an
• monarch_dodra (4/14) Oct 07 2014 I wish that's what we used it for. More often than not, it's used

"eles" <eles eles.com> writes:

Hello everybody,

  All D contributors are invited to have a look at this pull 
request. It is fairly important for the D language, as it 
implements the multiple alias this.

  The pull request number: 333998

https://github.com/D-Programming-Language/dmd/pull/3998

  Please focus attention on it today (well, the next 24 hours, it 
depends when your day starts).

  Let's bring'it to a state of: "to be merged" or "to be rejected".

  Many thanks.

"H. S. Teoh via Digitalmars-d" <digitalmars-d puremagic.com> writes:

On Tue, Oct 07, 2014 at 03:31:51PM +0000, eles via Digitalmars-d wrote:
 Hello everybody,
 
 All D contributors are invited to have a look at this pull request. It
 is fairly important for the D language, as it implements the multiple
 alias this.

[...]

PR of the *day*?? More like PR of the *year*. I've been waiting for
multiple alias this for a looong time, ever since I read about it in
TDPL.


T

-- 
People tell me that I'm paranoid, but they're just out to get me.

"Jonathan" <jadit2 gmail.com> writes:

What are some "common uses" for multiple aliasing? I understand 
the feature, but curious where it would be commonly employed.

To me, this allows structs to have something like inheritance. 
You add a property for another struct that acts like an interface 
and alias that struct to the current one. Thoughts?

"Jonathan" <jadit2 gmail.com> writes:

Btw, is the C++ equivalent (roughly) to this be the casting 
operator?
http://en.cppreference.com/w/cpp/language/cast_operator

ketmar via Digitalmars-d <digitalmars-d puremagic.com> writes:

On Tue, 07 Oct 2014 17:36:22 +0000
Jonathan via Digitalmars-d <digitalmars-d puremagic.com> wrote:

 What are some "common uses" for multiple aliasing? I understand=20
 the feature, but curious where it would be commonly employed.

it was already discussed in this NG.

"Dicebot" <public dicebot.lv> writes:

On Tuesday, 7 October 2014 at 17:36:24 UTC, Jonathan wrote:
 What are some "common uses" for multiple aliasing? I understand 
 the feature, but curious where it would be commonly employed.

 To me, this allows structs to have something like inheritance. 
 You add a property for another struct that acts like an 
 interface and alias that struct to the current one. Thoughts?

Multiple inheritance of implementation for structs + implicit 
casting in one basket

"H. S. Teoh via Digitalmars-d" <digitalmars-d puremagic.com> writes:

On Tue, Oct 07, 2014 at 05:58:40PM +0000, Dicebot via Digitalmars-d wrote:
 On Tuesday, 7 October 2014 at 17:36:24 UTC, Jonathan wrote:
What are some "common uses" for multiple aliasing? I understand the
feature, but curious where it would be commonly employed.

To me, this allows structs to have something like inheritance. You
add a property for another struct that acts like an interface and
alias that struct to the current one. Thoughts?

 
 Multiple inheritance of implementation for structs + implicit casting
 in one basket

Also, transparent proxying of heterogenous interfaces. TDPL contains an
example (or two) of this.


T

-- 
Without geometry, life would be pointless. -- VS

"monarch_dodra" <monarchdodra gmail.com> writes:

On Tuesday, 7 October 2014 at 17:58:41 UTC, Dicebot wrote:
 On Tuesday, 7 October 2014 at 17:36:24 UTC, Jonathan wrote:
 What are some "common uses" for multiple aliasing? I 
 understand the feature, but curious where it would be commonly 
 employed.

 To me, this allows structs to have something like inheritance. 
 You add a property for another struct that acts like an 
 interface and alias that struct to the current one. Thoughts?

 Multiple inheritance of implementation for structs + implicit 
 casting in one basket

I wish that's what we used it for. More often than not, it's used 
to simulate implicit casting, sometimes with catastrophic results 
in generic code...