public static Delegate RemoveDelegate(Delegate obj, Delegate dg)
{
LuaDelegate remove = dg.Target as LuaDelegate;
if (remove == null)
{
obj = Delegate.Remove(obj, dg);
return(obj);
}
Delegate[] ds = obj.GetInvocationList();
for (int i = 0; i < ds.Length; i++)
{
LuaDelegate ld = ds[i].Target as LuaDelegate;
if (ld != null && ld == remove)
{
obj = Delegate.Remove(obj, ds[i]);
if (obj != null)
{
obj.AddRef();
}
break;
}
}
return(obj);
}
static int op_Addition(IntPtr L)
{
try
{
LuaTypes type = LuaDLL.lua_type(L, 1);
switch (type)
{
case LuaTypes.LUA_TFUNCTION:
Delegate arg0 = (Delegate)ToLua.ToObject(L, 2);
LuaFunction func = ToLua.ToLuaFunction(L, 1);
Type t = arg0.GetType();
Delegate arg1 = DelegateFactory.CreateDelegate(t, func);
Delegate arg2 = Delegate.Combine(arg0, arg1);
arg0.AddRef();
ToLua.Push(L, arg2);
func.Dispose();
return(1);
case LuaTypes.LUA_TNIL:
LuaDLL.lua_pushvalue(L, 2);
return(1);
case LuaTypes.LUA_TUSERDATA:
Delegate a0 = (Delegate)ToLua.ToObject(L, 1);
Delegate a1 = ToLua.CheckDelegate(a0.GetType(), L, 2);
Delegate ret = Delegate.Combine(a0, a1);
if (LuaDLL.lua_type(L, 2) == LuaTypes.LUA_TFUNCTION)
{
a0.AddRef(); //如果是Lua函数已经加1
}
else
{
ret.AddRef();
}
ToLua.Push(L, ret);
return(1);
default:
LuaDLL.luaL_typerror(L, 1, "Delegate");
return(1);
}
}
catch (Exception e)
{
return(LuaDLL.toluaL_exception(L, e));
}
}
static int op_Subtraction(IntPtr L)
{
try
{
Delegate arg0 = (Delegate)ToLua.ToObject(L, 1); //不能增加引用计数，否则自身包含的都会增加
LuaTypes type = LuaDLL.lua_type(L, 2);
if (type == LuaTypes.LUA_TFUNCTION)
{
LuaFunction func = ToLua.ToLuaFunction(L, 2);
Delegate[] ds = arg0.GetInvocationList();
for (int i = 0; i < ds.Length; i++)
{
LuaDelegate target = ds[i].Target as LuaDelegate;
if (target != null && target.func == func && target.self == null)
{
arg0 = Delegate.Remove(arg0, ds[i]);
if (arg0 != null)
{
arg0.AddRef(); //产生新的委托需要增加计数
}
break;
}
}
func.Dispose();
ToLua.Push(L, arg0);
return(1);
}
else
{
Delegate arg1 = (Delegate)ToLua.CheckObject(L, 2);
arg0 = DelegateFactory.RemoveDelegate(arg0, arg1);
ToLua.Push(L, arg0);
return(1);
}
}
catch (Exception e)
{
return(LuaDLL.toluaL_exception(L, e));
}
}
public static Delegate RemoveDelegate(Delegate obj, LuaFunction func)
{
Delegate[] ds = obj.GetInvocationList();
for (int i = 0; i < ds.Length; i++)
{
LuaDelegate ld = ds[i].Target as LuaDelegate;
if (ld != null && ld.func == func)
{
obj = Delegate.Remove(obj, ds[i]);
if (obj != null)
{
obj.AddRef();
}
break;
}
}
return(obj);
}