Templates for structures

[novice2 via Digitalmars-d-learn]

Hello.

I need write some wrapper around legacy data structure.
May be it should be class. May be structure with methods.
The problem is writing repetitive code for underlying data.
For example:
 - code to read length-byte-prefixed string to D string for every 
field in every structure;

 - code to write D string back to length-byte-prefixed string;

Is it possible to write some template or mixin, and then just 
write

myStruct.addFiled(type=ByteLengthString, name="name")
myStruct.addFiled(type=ShortLengthString, name="filed2")
myStruct.addFiled(type=WeirdStoredInteger, name="counter")

May be it can be done with template, mixin, UDA, ...?

May be something already realized, and i can see sources as 
example?


Any ideas or examples please.
Just show direction for me )

Thanx.

Re: Templates for structures

[Ali Çehreli via Digitalmars-d-learn]

On 11/02/2014 04:10 AM, novice2 wrote:

Hello.

I need write some wrapper around legacy data structure.
May be it should be class. May be structure with methods.
The problem is writing repetitive code for underlying data.
For example:
  - code to read length-byte-prefixed string to D string for every field
in every structure;
  - code to write D string back to length-byte-prefixed string;

Is it possible to write some template or mixin, and then just write
myStruct.addFiled(type=ByteLengthString, name="name")
myStruct.addFiled(type=ShortLengthString, name="filed2")
myStruct.addFiled(type=WeirdStoredInteger, name="counter")

May be it can be done with template, mixin, UDA, ...?

May be something already realized, and i can see sources as example?

Any ideas or examples please.
Just show direction for me )

Thanx.


It sounds possible but I don't understand it yet. Can you give an 
example of the input and output to the D code?


Ali

Re: Templates for structures

[novice2 via Digitalmars-d-learn]

On Monday, 3 November 2014 at 14:53:29 UTC, Ali Çehreli wrote:
It sounds possible but I don't understand it yet. Can you give 
an example of the input and output to the D code?


Ali


Thank you Ali.
I realized, that my wishes look like serialization.
So i decide read and learn code from existent serialization 
libraries.