PyObject *LuaConvert(lua_State *L, int n)
{
PyObject *ret = NULL;
switch (lua_type(L, n)) {
case LUA_TNIL:
Py_INCREF(Py_None);
ret = Py_None;
break;
case LUA_TSTRING: {
size_t len;
const char *s = lua_tolstring(L, n, &len);
ret = PyString_FromStringAndSize(s, len);
break;
}
case LUA_TNUMBER: {
lua_Number num = lua_tonumber(L, n);
#ifdef LUA_NUMBER_DOUBLE
if (num != (long)num) {
ret = PyFloat_FromDouble(n);
} else
#endif
{
ret = PyInt_FromLong((long)num);
}
break;
}
case LUA_TBOOLEAN:
if (lua_toboolean(L, n)) {
Py_INCREF(Py_True);
ret = Py_True;
} else {
Py_INCREF(Py_False);
ret = Py_False;
}
break;
case LUA_TUSERDATA: {
py_object *obj = check_py_object(L, n);
if (obj) {
Py_INCREF(obj->o);
ret = obj->o;
break;
}
/* Otherwise go on and handle as custom. */
}
default:
ret = LuaObject_New(n);
break;
}
return ret;
}
PyObject *LuaConvert(lua_State *L, int n)
{
PyObject *ret = NULL;
switch (lua_type(L, n)) {
case LUA_TNIL:
Py_INCREF(Py_None);
ret = Py_None;
break;
case LUA_TSTRING: {
const char *s = lua_tostring(L, n);
int len = lua_strlen(L, n);
ret = PyUnicode_FromStringAndSize(s, len);
break;
}
case LUA_TNUMBER: {
lua_Number num = lua_tonumber(L, n);
if (num != (long)num) {
ret = PyFloat_FromDouble(num);
} else {
ret = PyLong_FromLong((long)num);
}
break;
}
case LUA_TBOOLEAN:
if (lua_toboolean(L, n)) {
Py_INCREF(Py_True);
ret = Py_True;
} else {
Py_INCREF(Py_False);
ret = Py_False;
}
break;
case LUA_TUSERDATA: {
// Handle torch tensor and convert them to numpy array
#define TH_GENERIC_FILE "generic/tensorToArray.c"
#include "THGenerateAllTypes.h"
// If not a tensor, is it a pobject that we created in pythoninlua
py_object *obj = luaPy_to_pobject(L, n);
if (obj) {
Py_INCREF(obj->o);
ret = obj->o;
break;
}
/* Otherwise go on and handle as custom. */
}
default:
ret = LuaObject_New(n);
break;
}
return ret;
}