ardour/livetrax
13
0
Fork 0
Code

add "sameinstance()" lua binding for all shared/weak ptrs

Browse Source
This commit is contained in:
Robin Gareus 2016-08-26 18:25:15 +02:00
parent ddc4e61b57
commit 1d7c144967
2 changed files with 49 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
libs/lua/LuaBridge/detail/CFunctions.h
View File

@ -401,7 +401,6 @@ struct CFunc
}
};
template <class T>
struct PtrNullCheck
{
@ -430,6 +429,38 @@ struct CFunc
}
};
template <class T>
struct PtrEqualCheck
{
static int f (lua_State* L)
{
boost::shared_ptr<T> t0 = luabridge::Stack<boost::shared_ptr<T> >::get (L, 1);
boost::shared_ptr<T> t1 = luabridge::Stack<boost::shared_ptr<T> >::get (L, 2);
Stack <bool>::push (L, t0 == t1);
return 1;
}
};
template <class T>
struct WPtrEqualCheck
{
static int f (lua_State* L)
{
bool rv = false;
boost::weak_ptr<T> tw0 = luabridge::Stack<boost::weak_ptr<T> >::get (L, 1);
boost::weak_ptr<T> tw1 = luabridge::Stack<boost::weak_ptr<T> >::get (L, 2);
boost::shared_ptr<T> const t0 = tw0.lock();
boost::shared_ptr<T> const t1 = tw1.lock();
if (t0 && t1) {
T* const tt0 = t0.get();
T* const tt1 = t1.get();
rv = (tt0 == tt1);
}
Stack <bool>::push (L, rv);
return 1;
}
};
template <class MemFnPtr, class T,
class ReturnType = typename FuncTraits <MemFnPtr>::ReturnType>
struct CallMemberWPtr

18
libs/lua/LuaBridge/detail/Namespace.h
View File

@ -1298,6 +1298,21 @@ private:
return *this;
}
WSPtrClass <T>& addEqualCheck ()
{
PRINTDOC("Member Function", _name << "sameinstance", std::string("bool"), std::string("void (*)(" + type_name <T>() + ")"))
set_weak_class ();
assert (lua_istable (L, -1));
lua_pushcclosure (L, &CFunc::WPtrEqualCheck <T>::f, 0);
rawsetfield (L, -3, "isnil"); // class table
set_shared_class ();
assert (lua_istable (L, -1));
lua_pushcclosure (L, &CFunc::PtrEqualCheck <T>::f, 0);
rawsetfield (L, -3, "isnil"); // class table
return *this;
}
Namespace endClass ()
{
@ -1652,7 +1667,8 @@ public:
WSPtrClass <T> beginWSPtrClass (char const* name)
{
return WSPtrClass <T> (name, this)
.addNullCheck();
.addNullCheck()
.addEqualCheck();
}
//----------------------------------------------------------------------------