#ifndef TOLUA_BASE_H
#define TOLUA_BASE_H
#pragma warning(disable:4800) // This file is ONLY included by Bindings.cpp and it throws lots of C4800 warnings
#include "tolua++/include/tolua++.h"
class ToluaBase {
int lua_instance;
protected:
lua_State* lua_state;
void lua_stacktrace(lua_State* L) const
{
lua_Debug entry;
int depth = 0;
while (lua_getstack(L, depth, &entry))
{
lua_getinfo(L, "Sln", &entry);
LOGERROR("%s(%d): %s", entry.short_src, entry.currentline, entry.name ? entry.name : "?");
depth++;
}
}
bool report_errors(int status) const
{
if ( status!=0 )
{
const char* s = lua_tostring(lua_state, -1);
LOGERROR("-- %s", s );
//lua_pop(lua_state, 1);
LOGERROR("Stack:");
lua_stacktrace( lua_state );
return true;
}
return false;
}
bool push_method(const char* name, lua_CFunction f) const {
if (!lua_state) return false;
lua_getref(lua_state, lua_instance);
lua_pushstring(lua_state, name);
//LOGINFO("1. push_method() Stack size: %i", lua_gettop( lua_state ) );
lua_gettable(lua_state, -2);
//LOGINFO("2. push_method() Stack size: %i", lua_gettop( lua_state ) );
if (lua_isnil(lua_state, -1)) {
// pop the table
lua_pop(lua_state, 2);
return false;
} else {
if (f) {
if (lua_iscfunction(lua_state, -1)) {
lua_pop(lua_state, 2);
return false;
};
/* // not for now
lua_pushcfunction(lua_state, f);
if (lua_rawequal(lua_state, -1, -2)) {
// avoid recursion, pop both functions and the table
lua_pop(lua_state, 3);
return false;
};
// pop f
lua_pop(lua_state, 1);
*/
};
// swap table with function
lua_insert(lua_state, -2);
};
return true;
};
void dbcall(lua_State* L, int nargs, int nresults) const {
// using lua_call for now
int s = lua_pcall(L, nargs, nresults, 0);
report_errors( s );
};
public:
int GetInstance() { return lua_instance; }
lua_State* GetLuaState() { return lua_state; }
void tolua__set_instance(lua_State* L, lua_Object lo) {
lua_state = L;
lua_pushvalue(L, lo);
lua_instance = lua_ref(lua_state, 1);
};
ToluaBase() {
lua_state = NULL;
};
~ToluaBase() {
if (lua_state) {
lua_unref(lua_state, lua_instance);
};
};
};
#endif
