Does D have any reflection/introspection?

I'd like to do something like this

class Contact
{
string first, last
int number
}

contact = json_deserialized!Contact(json_string);

Is something like that possible?

On Thursday, 17 October 2013 at 01:47:41 UTC, DDD wrote:
> Does D have any reflection/introspection?
>
> I'd like to do something like this
>
> class Contact
> {
> string first, last
> int number
> }
>
> contact = json_deserialized!Contact(json_string);
>
> Is something like that possible?

Check out Vibe.D

http://vibed.org/api/vibe.data.json/deserializeJson

This is exactly what you are looking for I believe.

For example I have the following code which works:

import vibe.d;

struct Foo {
   string bar;
   int	 num;
}


void deserializeExample() {
       Json js = Json.emptyObject;
       js.bar = "Hello world!";
       js.num = 42;

       Foo afoo = deserializeJson!Foo( js );

       assert( afoo.bar == "Hello world!");
       assert( afoo.num == 42 );
}

On Thursday, 17 October 2013 at 02:03:28 UTC, Craig Dillabaugh
wrote:
> On Thursday, 17 October 2013 at 01:47:41 UTC, DDD wrote:
>> Does D have any reflection/introspection?
>>
>> I'd like to do something like this
>>
>> class Contact
>> {
>> string first, last
>> int number
>> }
>>
>> contact = json_deserialized!Contact(json_string);
>>
>> Is something like that possible?
>
> Check out Vibe.D
>
> http://vibed.org/api/vibe.data.json/deserializeJson
>
> This is exactly what you are looking for I believe.
>
> For example I have the following code which works:
>
> import vibe.d;
>
> struct Foo {
>    string bar;
>    int	 num;
> }
>
>
> void deserializeExample() {
>        Json js = Json.emptyObject;
>        js.bar = "Hello world!";
>        js.num = 42;
>
>        Foo afoo = deserializeJson!Foo( js );
>
>        assert( afoo.bar == "Hello world!");
>        assert( afoo.num == 42 );
> }

Vibe source code for deserializeJson can be viewed at:

https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/data/json.d

On 17 October 2013 11:47, DDD <dcb854d0bfb1@f98b7c56a69c.anonbox.net> wrote:

> Does D have any reflection/introspection?
>
> I'd like to do something like this
>
> class Contact
> {
> string first, last
> int number
> }
>
> contact = json_deserialized!Contact(**json_string);
>
> Is something like that possible?
>

Yes, there is quite thorough reflection in D. Serialisers are plentiful.

On 2013-10-17 03:47, DDD wrote:
> Does D have any reflection/introspection?
>
> I'd like to do something like this
>
> class Contact
> {
> string first, last
> int number
> }
>
> contact = json_deserialized!Contact(json_string);
>
> Is something like that possible?

If you need something more advanced you can try Orange:

https://github.com/jacob-carlborg/orange

Soon (hopefully) to be integrated to Phobos as std.serialization.

-- 
/Jacob Carlborg