bool PythonScript::exec()
{
if (isFunction) compiled = notCompiled;
if (compiled != Script::isCompiled && !compile(false))
return false;
PyObject *pyret;
beginStdoutRedirect();
if (PyCallable_Check(PyCode)) {
PyObject *empty_tuple = PyTuple_New(0);
if (!empty_tuple) {
emit_error(env()->errorMsg(), 0);
return false;
}
pyret = PyObject_Call(PyCode,empty_tuple,localDict);
Py_DECREF(empty_tuple);
} else {
pyret = PyEval_EvalCode((PyCodeObject*)PyCode, env()->globalDict(), localDict);
//pyret = PyRun_String(Code, 0, env()->globalDict(), localDict);
}
endStdoutRedirect();
if (pyret) {
Py_DECREF(pyret);
return true;
}
emit_error(env()->errorMsg(), 0);
return false;
}
/**
* Executes the compiled code object. If NULL nothing happens
* @param compiledCode An object that has been compiled from a code fragment
* @return The result python object
*/
PyObject* PythonScript::executeCompiledCode(PyObject *compiledCode)
{
PyObject *result(NULL);
if(!compiledCode) return result;
InstallTrace traceInstall(*this);
beginStdoutRedirect();
result = PyEval_EvalCode((PyCodeObject*)compiledCode, localDict, localDict);
endStdoutRedirect();
return result;
}
/**
* Evaluate the code and return the value
* @return
*/
QVariant PythonScript::evaluateImpl() {
ScopedPythonGIL lock;
PyObject *compiledCode = this->compileToByteCode(true);
if (!compiledCode) {
return QVariant("");
}
PyObject *pyret;
beginStdoutRedirect();
if (PyCallable_Check(compiledCode)) {
PyObject *empty_tuple = PyTuple_New(0);
pyret = PyObject_Call(compiledCode, empty_tuple, localDict);
Py_DECREF(empty_tuple);
} else {
pyret = PyEval_EvalCode(CODE_OBJECT(compiledCode), localDict, localDict);
}
endStdoutRedirect();
if (!pyret) {
if (PyErr_ExceptionMatches(PyExc_ValueError) ||
PyErr_ExceptionMatches(PyExc_ZeroDivisionError)) {
PyErr_Clear(); // silently ignore errors
return QVariant("");
} else {
emit_error();
return QVariant();
}
}
QVariant qret = QVariant();
/* None */
if (pyret == Py_None) {
qret = QVariant("");
}
/* numeric types */
else if (PyFloat_Check(pyret)) {
qret = QVariant(PyFloat_AS_DOUBLE(pyret));
} else if (INT_CHECK(pyret)) {
qret = QVariant((qlonglong)TO_LONG(pyret));
}
#if !defined(IS_PY3K)
else if (PyLong_Check(pyret)) {
qret = QVariant((qlonglong)PyLong_AsLongLong(pyret));
}
#endif
else if (PyNumber_Check(pyret)) {
PyObject *number = PyNumber_Float(pyret);
if (number) {
qret = QVariant(PyFloat_AS_DOUBLE(number));
Py_DECREF(number);
}
}
/* bool */
else if (PyBool_Check(pyret)) {
qret = QVariant(pyret == Py_True);
}
// could handle advanced types (such as PyList->QValueList) here if needed
/* fallback: try to convert to (unicode) string */
if (!qret.isValid()) {
#if defined(IS_PY3K)
// In 3 everything is unicode
PyObject *pystring = PyObject_Str(pyret);
if (pystring) {
qret = QVariant(QString::fromUtf8(_PyUnicode_AsString(pystring)));
}
#else
PyObject *pystring = PyObject_Unicode(pyret);
if (pystring) {
PyObject *asUTF8 =
PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(pystring),
(int)PyUnicode_GET_DATA_SIZE(pystring), nullptr);
Py_DECREF(pystring);
if (asUTF8) {
qret = QVariant(QString::fromUtf8(PyString_AS_STRING(asUTF8)));
Py_DECREF(asUTF8);
} else if ((pystring = PyObject_Str(pyret))) {
qret = QVariant(QString(PyString_AS_STRING(pystring)));
Py_DECREF(pystring);
}
}
#endif
}
Py_DECREF(pyret);
if (PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError) ||
PyErr_ExceptionMatches(PyExc_ZeroDivisionError)) {
PyErr_Clear(); // silently ignore errors
return QVariant("");
} else {
emit_error();
}
return QVariant();
}
return qret;
}
QVariant PythonScript::eval()
{
if (!isFunction) compiled = notCompiled;
if (compiled != isCompiled && !compile(true))
return QVariant();
PyObject *pyret;
beginStdoutRedirect();
if (PyCallable_Check(PyCode)) {
PyObject *empty_tuple = PyTuple_New(0);
pyret = PyObject_Call(PyCode, empty_tuple, localDict);
Py_DECREF(empty_tuple);
} else
pyret = PyEval_EvalCode((PyCodeObject*)PyCode, env()->globalDict(), localDict);
endStdoutRedirect();
if (!pyret) {
if (PyErr_ExceptionMatches(PyExc_ValueError) ||
PyErr_ExceptionMatches(PyExc_ZeroDivisionError)) {
PyErr_Clear(); // silently ignore errors
return QVariant("");
} else {
emit_error(env()->errorMsg(), 0);
return QVariant();
}
}
QVariant qret = QVariant();
/* None */
if (pyret == Py_None)
qret = QVariant("");
/* numeric types */
else if (PyFloat_Check(pyret))
qret = QVariant(PyFloat_AS_DOUBLE(pyret));
else if (PyInt_Check(pyret))
qret = QVariant((qlonglong)PyInt_AS_LONG(pyret));
else if (PyLong_Check(pyret))
qret = QVariant((qlonglong)PyLong_AsLongLong(pyret));
else if (PyNumber_Check(pyret)) {
PyObject *number = PyNumber_Float(pyret);
if (number) {
qret = QVariant(PyFloat_AS_DOUBLE(number));
Py_DECREF(number);
}
/* bool */
} else if (PyBool_Check(pyret))
qret = QVariant(pyret==Py_True, 0);
// could handle advanced types (such as PyList->QValueList) here if needed
/* fallback: try to convert to (unicode) string */
if(!qret.isValid()) {
PyObject *pystring = PyObject_Unicode(pyret);
if (pystring) {
PyObject *asUTF8 = PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(pystring), PyUnicode_GET_DATA_SIZE(pystring), 0);
Py_DECREF(pystring);
if (asUTF8) {
qret = QVariant(QString::fromUtf8(PyString_AS_STRING(asUTF8)));
Py_DECREF(asUTF8);
} else if (pystring = PyObject_Str(pyret)) {
qret = QVariant(QString(PyString_AS_STRING(pystring)));
Py_DECREF(pystring);
}
}
}
Py_DECREF(pyret);
if (PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError) ||
PyErr_ExceptionMatches(PyExc_ZeroDivisionError)) {
PyErr_Clear(); // silently ignore errors
return QVariant("");
} else {
emit_error(env()->errorMsg(), 0);
return QVariant();
}
} else
return qret;
}
