Add support for component inheritance to the reflection framework

[morganlaowang]

Describe the bug
I use component like that：
struct Base
{
int base = 1;
}

struct A : Base
{
int base = 2;
int a = 2;
}

struct A : Base
{
int base = 3;
int b = 3;
}

I also used "e.component().is_a()" and also the struct B

I used system and query

I added the componets and changed the data from the explorer

Expected behavior
the data has wrong that the default value not used and the data changed not sync.
if I dont used inheritance the problem will not happened

Additional context
I use the version 4.0.1

[SanderMertens]

Can you share the entire code example that reproduces the issue, including where you add the component to an entity?

[morganlaowang]

struct C
{
    int layer = 0;
    std::string d;
    int type = 0;
};

struct S:C
{
    int layer = 0;
    std::string d = "";
    int type = 1;

    float r;
};

struct B:C
{
    int layer = 0;
    std::string d = "";
    int type = 2;

    Vec3  p
};
	
	flecs::world.component<C>("C")
        .member("layer", &)
        .member("d", &C::d)
        .member("type", &C::type);

    flecs::world.component<B>("B")
        .member("layer", &B::layer)
        .member("p", &B::p).is_a<C>();

    flecs::world.component<S>("S")
        .member("layer", &S::layer)
        .member("r", &S::radius).is_a<C>();

[morganlaowang]

and I used the

in flecs explorer durning runtime

[SanderMertens]

Which component did you add in the explorer and with which value? Can you share a screenshot that shows the issue?

Ah, I see the issue. The reflection framework doesn't interpret component inheritance yet. That's something that'll have to get addressed.