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Lua/LuaClass: Add a default ToString implementation 

Former-commit-id: ff6c9cf1d18d34ad8fd7b03c970eec2da5ba0947
This commit is contained in:
Lynix 2016-03-30 18:15:17 +02:00
parent 9390ce35b3
commit b6ea30f9c1
2 changed files with 21 additions and 0 deletions
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1
include/Nazara/Lua/LuaClass.hpp
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@ -86,6 +86,7 @@ namespace Nz
static int StaticGetterProxy(lua_State* state);
static int StaticMethodProxy(lua_State* state);
static int StaticSetterProxy(lua_State* state);
static int ToStringProxy(lua_State* state);
std::map<String, ClassFunc> m_methods;
std::map<String, StaticFunc> m_staticMethods;

20
include/Nazara/Lua/LuaClass.inl
View File

@ -64,6 +64,15 @@ namespace Nz
lua.PushString(m_info->name);
lua.SetField("__type");
// In case a __tostring method is missing, add a default implementation returning the type
if (m_methods.find("__tostring") == m_methods.end())
{
// Define the Finalizer
lua.PushValue(1); // shared_ptr on UserData
lua.PushCFunction(ToStringProxy, 1);
lua.SetField("__tostring");
}
// Define the Finalizer
lua.PushValue(1);
lua.PushCFunction(FinalizerProxy, 1);
@ -486,6 +495,17 @@ namespace Nz
return 1;
}
template<class T>
int LuaClass<T>::ToStringProxy(lua_State* state)
{
LuaInstance& lua = *LuaInstance::GetInstance(state);
std::shared_ptr<ClassInfo>& info = *static_cast<std::shared_ptr<ClassInfo>*>(lua.ToUserdata(lua.GetIndexOfUpValue(1)));
lua.PushString(info->name);
return 1;
}
}
#include <Nazara/Lua/DebugOff.hpp>