On 2013-08-05 14:40, Bosak wrote:
In C# there is this using construct:
using(Bitmap image = this.OpenImage("filename.bmp")) {
image.Name = "foo";
//use image like image.sth
}
which is translated to:
{
Bitmap image = this.OpenImage("filename.bmp");
try {
image.Name
On 2013-08-05 17:45:23 +, Bosak said:
I think this dispose thing should be added to D, because it is a very
common practice in C#(and not only). In the book I used to learn C#
long ago I remember how they sayed like 100 of times: "If you use an
object that implements IDisposable ALLWAYS use
On 8/5/2013 11:30 AM, Bosak wrote:
> On Monday, 5 August 2013 at 13:54:38 UTC, Adam D. Ruppe wrote:
>> On Monday, 5 August 2013 at 13:42:01 UTC, Michal Minich wrote:
>>> But what Bosak proposes is that when "with" statements ends, the
>>> object should be destructed
>>
>> That would happen if the o
On Monday, 5 August 2013 at 18:29:09 UTC, Dicebot wrote:
On Monday, 5 August 2013 at 17:45:25 UTC, Bosak wrote:
You say that D's destroy is not like C#'s IDisposable.Then why
doesn't D then declare that kind of interface:
interface Disposable {
void dispose();
}
It _is_ similar but not exa
On Monday, 5 August 2013 at 17:45:25 UTC, Bosak wrote:
You say that D's destroy is not like C#'s IDisposable.Then why
doesn't D then declare that kind of interface:
interface Disposable {
void dispose();
}
It _is_ similar but not exact match. 2 key differences:
1) destroy works on variety
--snip--
Bosak:
class Resource { //can be any resource from files to streams to
anything
Resource[] used;
void opDispose() {
writeln("Resource disposed!");
You should avoid doing IO in a destructor/finaliser. Writing to
STDOUT can fail which may lead to resource leaks (if
On Monday, 5 August 2013 at 15:38:12 UTC, Dicebot wrote:
On Monday, 5 August 2013 at 15:30:45 UTC, Bosak wrote:
...
What you propose is rather unwelcome for classes (destruction
of GC-managed objects is non-deterministic) and closest thing
for IDisposable D has is "destroy" which is not some
On Monday, 5 August 2013 at 15:55:00 UTC, John Colvin wrote:
On Monday, 5 August 2013 at 14:00:47 UTC, Dicebot wrote:
On Monday, 5 August 2013 at 13:25:43 UTC, John Colvin wrote:
It's not a feature I've ever had the need for so far, but
what is the replacement for scope?
http://dlang.org/phob
On Monday, 5 August 2013 at 14:00:47 UTC, Dicebot wrote:
On Monday, 5 August 2013 at 13:25:43 UTC, John Colvin wrote:
It's not a feature I've ever had the need for so far, but what
is the replacement for scope?
http://dlang.org/phobos/std_typecons.html#.scoped
cool, thanks. Any particular ca
On Monday, 5 August 2013 at 15:30:45 UTC, Bosak wrote:
...
What you propose is rather unwelcome for classes (destruction of
GC-managed objects is non-deterministic) and closest thing for
IDisposable D has is "destroy" which is not something that is
expected to be called silently.
However,
On Monday, 5 August 2013 at 13:54:38 UTC, Adam D. Ruppe wrote:
On Monday, 5 August 2013 at 13:42:01 UTC, Michal Minich wrote:
But what Bosak proposes is that when "with" statements ends,
the object should be destructed
That would happen if the object is a struct, or wrapped in a
struct, since
On Monday, 5 August 2013 at 13:25:43 UTC, John Colvin wrote:
It's not a feature I've ever had the need for so far, but what
is the replacement for scope?
http://dlang.org/phobos/std_typecons.html#.scoped
On Monday, 5 August 2013 at 13:42:01 UTC, Michal Minich wrote:
But what Bosak proposes is that when "with" statements ends,
the object should be destructed
That would happen if the object is a struct, or wrapped in a
struct, since it would go out of scope at the end of the with and
call its d
On Monday, 5 August 2013 at 13:33:28 UTC, Adam D. Ruppe wrote:
On Monday, 5 August 2013 at 12:40:26 UTC, Bosak wrote:
with(Bitmap image = open("filename.bmp")) {
I think this shoudl be allowed simply for consistency with this:
if(auto a = getfoo()) { use a }
This is good. I think it should
On Monday, 5 August 2013 at 13:11:44 UTC, bearophile wrote:
Michal Minich:
void foo ()
{
scope obj = new Object;
} // obj will be destructed here
That usage of scope has being deprecated...
For Walter: I suggest dmd to give a deprecation message where
you use one of the many deprecated D
On Monday, 5 August 2013 at 12:40:26 UTC, Bosak wrote:
with(Bitmap image = open("filename.bmp")) {
I think this shoudl be allowed simply for consistency with this:
if(auto a = getfoo()) { use a }
On Monday, 5 August 2013 at 13:11:44 UTC, bearophile wrote:
Michal Minich:
void foo ()
{
scope obj = new Object;
} // obj will be destructed here
That usage of scope has being deprecated...
For Walter: I suggest dmd to give a deprecation message where
you use one of the many deprecated D
On Monday, 5 August 2013 at 12:49:11 UTC, Michal Minich wrote:
On Monday, 5 August 2013 at 12:40:26 UTC, Bosak wrote:
In C# there is this using construct:
just declare variable as scope, and ti will be destructed as
son as function exits.
void foo ()
{
scope obj = new Object;
} // obj wi
On Monday, 5 August 2013 at 13:11:44 UTC, bearophile wrote:
Michal Minich:
void foo ()
{
scope obj = new Object;
} // obj will be destructed here
That usage of scope has being deprecated...
Why it is deprecated? I follow newsgroups, but that I miss...
I like it use together with scope cl
Michal Minich:
void foo ()
{
scope obj = new Object;
} // obj will be destructed here
That usage of scope has being deprecated...
For Walter: I suggest dmd to give a deprecation message where you
use one of the many deprecated D features, like scope classes,
floating point comparison ope
On Monday, 5 August 2013 at 12:40:26 UTC, Bosak wrote:
In C# there is this using construct:
just declare variable as scope, and ti will be destructed as son
as function exits.
void foo ()
{
scope obj = new Object;
} // obj will be destructed here
you can also use it together with anonymo
In C# there is this using construct:
using(Bitmap image = this.OpenImage("filename.bmp")) {
image.Name = "foo";
//use image like image.sth
}
which is translated to:
{
Bitmap image = this.OpenImage("filename.bmp");
try {
image.Name = "foo";
//use image like image.
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