qecs-core 0.0.13

Soon to be highly flexible Entity-Component-System framework, core lib.
Documentation 
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use store::StoreBase;
use buffer::BufferBase;
use id_manager::PrimaryIdManager;
use subsystem::SubsystemBase;
use idmgr_mode;

use ioc::{Ioc, InvocationMethod};

use std::any::Any;
use std::fmt::Debug;
use std::sync::RwLock;

pub trait ProcessBase<IdMgr, Key, SsysBase: ?Sized, StoBase: ?Sized, BufBase: ?Sized>: Any + Send + Sync
where 
    IdMgr: PrimaryIdManager,
    Key: Debug + Ord,
    SsysBase: SubsystemBase,
    StoBase: StoreBase<Id = IdMgr::Id>,
    BufBase: BufferBase,
{
    fn _update(
        &mut self, 
        ids: &RwLock<IdMgr>,
        subsystems: &Ioc<Key, SsysBase>,
        stores: &Ioc<Key, StoBase>,
        buffers: &Ioc<Key, BufBase>,
    );
}

pub trait Process<'a, IdMgr, Key, SsysBase: ?Sized, StoBase: ?Sized, BufBase: ?Sized>: Any + Send + Sync
where
    IdMgr: PrimaryIdManager,
    Key: Debug + Ord,
    SsysBase: SubsystemBase,
    StoBase: StoreBase<Id = IdMgr::Id>,
    BufBase: BufferBase,
{
    type IdMgrMode: idmgr_mode::IdMgrMode<'a, IdMgr>;
    type SubsystemSelection: InvocationMethod<'a, Key, SsysBase>;
    type StoreSelection: InvocationMethod<'a, Key, StoBase>;
    type BufferSelection: InvocationMethod<'a, Key, BufBase>;

    type IdMgr = <Self::IdMgrMode as idmgr_mode::IdMgrMode<'a, IdMgr>>::Ret;
    type Subsystems = <Self::SubsystemSelection as InvocationMethod<'a, Key, SsysBase>>::Ret;
    type Stores = <Self::StoreSelection as InvocationMethod<'a, Key, StoBase>>::Ret;
    type Buffers = <Self::BufferSelection as InvocationMethod<'a, Key, BufBase>>::Ret;
 
    fn update(
        &mut self, 
        ids: <Self::IdMgrMode as idmgr_mode::IdMgrMode<'a, IdMgr>>::Ret, 
        subsystems: <Self::SubsystemSelection as InvocationMethod<'a, Key, SsysBase>>::Ret,
        stores: <Self::StoreSelection as InvocationMethod<'a, Key, StoBase>>::Ret,
        buffers: <Self::BufferSelection as InvocationMethod<'a, Key, BufBase>>::Ret,
    );
}

impl<T, IdMgr, Key, SsysBase: ?Sized, StoBase: ?Sized, BufBase: ?Sized> ProcessBase<IdMgr, Key, SsysBase, StoBase, BufBase> for T 
where
    IdMgr: PrimaryIdManager,
    Key: Debug + Ord,
    SsysBase: SubsystemBase,
    StoBase: StoreBase<Id = IdMgr::Id>,
    BufBase: BufferBase,
    T: for<'a> Process<'a, IdMgr, Key, SsysBase, StoBase, BufBase>,
{
    fn _update(
        &mut self, 
        ids: &RwLock<IdMgr>,
        subsystems: &Ioc<Key, SsysBase>,
        stores: &Ioc<Key, StoBase>,
        buffers: &Ioc<Key, BufBase>,
    ){
        use std::mem;

        // FIXME ugly hack... just need to generate lists of nils... no variadic generics yet
        assert_eq!(0, mem::size_of::<<T::SubsystemSelection as InvocationMethod<_, _>>::Args>());
        assert_eq!(0, mem::size_of::<<T::StoreSelection as InvocationMethod<_, _>>::Args>());
        assert_eq!(0, mem::size_of::<<T::BufferSelection as InvocationMethod<_, _>>::Args>());
        
        let nil1 = unsafe { mem::zeroed() };
        let nil2 = unsafe { mem::zeroed() };
        let nil3 = unsafe { mem::zeroed() };

        self.update(
            <T::IdMgrMode as idmgr_mode::IdMgrMode<IdMgr>>::retrieve(ids),
            subsystems.invoke::<T::SubsystemSelection>(nil1).unwrap(),
            stores.invoke::<T::StoreSelection>(nil2).unwrap(),
            buffers.invoke::<T::BufferSelection>(nil3).unwrap(),
        );
    }
}