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WIP disentangle ID definition from target hierarchy by templating it on the base class

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This commit is contained in:
Fischlurch 2009-05-22 02:15:58 +02:00
parent 87362a4b0d
commit 0802d969cc
2 changed files with 38 additions and 27 deletions
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61
src/proc/mobject/placement-ref.hpp
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@ -51,38 +51,49 @@ namespace mobject {
long dummy_;
};
template<typename T>
template<typename T, class BA>
struct HaID;
struct TestA
template<class BA>
struct HaIndexed
{
LuidH id_;
HaID<TestA> const& getID() const;
HaID<BA,BA> const& getID() const;
};
template<class BA>
struct HaID<BA,BA> : LuidH
{
HaID () : LuidH () {}
HaID (BA const& ref) : LuidH (ref.getID()) {}
};
template<typename T, class BA>
struct HaID : HaID<BA,BA>
{
HaID () : HaID<BA,BA> () {}
HaID (T const& ref) : HaID<BA,BA> (ref) {}
};
template<class BA>
inline HaID<BA,BA> const&
HaIndexed<BA>::getID() const
{
return *(static_cast<const HaID<BA,BA>*> (&id_));
}
struct Base
{
int ii_;
};
struct TestA : Base, HaIndexed<TestA>
{
};
struct TestBA : TestA {};
struct TestBB : TestA {};
template<>
struct HaID<TestA> : LuidH
{
HaID () : LuidH () {}
HaID (TestA const& ref) : LuidH (ref.getID()) {}
};
template<typename T>
struct HaID : HaID<TestA>
{
HaID () : HaID<TestA> () {}
HaID (T const& ref) : HaID<TestA> (ref) {}
};
inline
HaID<TestA> const&
TestA::getID() const
{
return *(static_cast<const HaID<TestA>*> (&id_));
}
/**

4
tests/components/proc/mobject/placement-ref-test.cpp
View file

@ -48,10 +48,10 @@ namespace test {
using asset::VIDEO;
/** @todo WIP a generic hash-index, maybe also usable for assets */
HaID<TestBB> hahaBB1;
HaID<TestBB,TestA> hahaBB1;
TestBA bab;
HaID<TestBA> hahaBA1 (bab);
HaID<TestBA,TestA> hahaBA1 (bab);
///////////////////////////////TODO (Experimentation)