Orange serializer/deserializer

[InfiniteDimensional]

On Wednesday, 6 June 2018 at 16:34:52 UTC, Jacob Carlborg wrote:
> On 2018-06-05 20:14, InfiniteDimensional wrote:
>> I'm also having some issue now when I changed a type from 
>> using a class to using it's base interface
>> 
>> Unhandled exception: 
>> orange.serialization.SerializationException.SerializationException The object of the static type "const(ItemInterface)" have a different runtime type (Item) and therefore needs to either register its type or register a serializer for its type "Item". at ..\..\..\orange\serialization\SerializationException.d(25)
>> 
>> Item inherits from ItemInterface.
>> 
>> I was storing a list of Items and changed it to store 
>> ItemInterface
>> 
>> Item[] -> ItemInterface[]
>> 
>> and this is when the error happened.
>> 
>> Of course, I'd expect the interface not being 
>> serializable(although, maybe @properties should be?) it would 
>> be nice if it would store the actual type in it's place(an 
>> Item). Else, this prevents me from using interfaces.
>
> D doesn't support any runtime reflection (or very little). All 
> reflection is done at compile time, i.e. getting all the 
> fields. If the static type and the dynamic type differs Orange 
> cannot properly serialize the dynamic type. For that to work 
> you need to register all dynamic types that are expected to be 
> serialized through a base class or interface. See this example 
> [1].
>
> [1] 
> https://github.com/jacob-carlborg/orange/blob/master/tests/BaseClass.d#L73


I did register the main derived type and everything seems to 
work. Why do I have to reset the registered types?

I still can't have a void* in my class though ;/ My exact code is

@nonSerialized void* ptr;


commenting out passes, else I get the errors

\orange\serialization\Serializer.d(975): Error: expression 
`*value` is `void` and has no value
\orange\serialization\Serializer.d(1605): Error: template 
instance 
`orange.serialization.Serializer.Serializer.serializePointer!(inout(void)*)` error instantiating
\orange\serialization\Serializer.d(1698):        instantiated 
from here: `objectStructSerializeHelper!(inout(Item))`
\orange\serialization\Serializer.d(1616):        instantiated 
from here: `serializeBaseTypes!(item)`
\orange\serialization\Serializer.d(261):        instantiated from 
here: `objectStructSerializeHelper!(item)`
\orange\serialization\Serializer.d(247):        instantiated from 
here: `downcastSerialize!(item)`
main.d(50):        instantiated from here: `register!(item)`
\orange\serialization\Serializer.d(1609): Error: template 
instance 
`orange.serialization.Serializer.Serializer.serializeInternal!(inout(void*))` error instantiating
\orange\serialization\Serializer.d(1698):        instantiated 
from here: `objectStructSerializeHelper!(inout(Item))`
\orange\serialization\Serializer.d(1616):        instantiated 
from here: `serializeBaseTypes!(item)`
\orange\serialization\Serializer.d(261):        instantiated from 
here: `objectStructSerializeHelper!(item)`
\orange\serialization\Serializer.d(247):        instantiated from 
here: `downcastSerialize!(item)`
main.d(50):        instantiated from here: `register!(item)`
\orange\serialization\Serializer.d(1491): Error: new can only 
create structs, dynamic arrays or class objects, not `void`'s
\orange\serialization\Serializer.d(1653): Error: template 
instance 
`orange.serialization.Serializer.Serializer.deserializePointer!(void*)` error instantiating
\orange\serialization\Serializer.d(1709):        instantiated 
from here: `objectStructDeserializeHelper!(Item)`
\orange\serialization\Serializer.d(1688):        instantiated 
from here: `deserializeBaseTypes!(item)`
\orange\serialization\Serializer.d(264):        instantiated from 
here: `objectStructDeserializeHelper!(item)`
\orange\serialization\Serializer.d(247):        instantiated from 
here: `downcastSerialize!(item)`
main.d(50):        instantiated from here: `register!(item)`


changing void* ptr to int* ptr and everything works so this is an 
issue in orange.

when changing to int it serializes to

<null type="inout(int)*" key="ptr"/>