struct/class generation

Daniel Kozak kozzi11 at gmail.com
Wed Oct 11 13:56:43 UTC 2017


If you just want to not repeat fields and methods you can use alias this or
mixins:
https://run.dlang.io/is/0UkjTe

On Wed, Oct 11, 2017 at 2:07 PM, drug via Digitalmars-d-learn <
digitalmars-d-learn at puremagic.com> wrote:

> 11.10.2017 14:37, ANtlord пишет:
>
> Hello dear community!
>>
>> I've met a little issue. How can I generate struct or class copying some
>> fields and methods from another struct or class? I've found methods to get
>> fields. They are std.traits.FieldNameTuple and std.traits.FieldTypeTuple
>> but I can't find a method allows getting methods from struct or class.
>>
>> Other words I want to get fields and methods by string values and copy
>> them to my struct. Is it possible? Or do I want something strange?
>>
>> Thanks in advance. Sorry if my English is not clear.
>>
> You need a wrapper, but it would include all fields and methods from base
> struct/class and you just expose only that you need. So it's quite possible
> except I don't known how you can exclude needless fields.
> But FieldNameTuple etc are not enough, your best friend is
> __traits(allMember, ...), iterating over its output and making decision
> what current symbol is and processing it according to its features. It's
> not trivial but not very complex.
>
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