/**
* Called from Python with the codeObject and line number of the currently executing line
* @param codeObject A pointer to the code object whose line is executing
* @param lineNo The line number that the code is currently executing, note that
* this will be relative to the top of the code that was executed
*/
void PythonScript::lineNumberChanged(PyObject *codeObject, int lineNo)
{
if(codeObject == m_CodeFileObject)
{
sendLineChangeSignal(getRealLineNo(lineNo), false);
}
}
/**
* Constructs a string error message from a syntax exception value object
* @param syntaxError An instance of PyExc_SyntaxError
*/
QString PythonScript::constructSyntaxErrorStr(PyObject *syntaxError)
{
QString exceptionAsStr = m_pythonEnv->toString(syntaxError);
exceptionAsStr = exceptionAsStr.section("(", 0, 0).trimmed();
const QString filename = m_pythonEnv->toString(PyObject_GetAttrString(syntaxError, "filename"), true);
int lineno = static_cast<int>(m_pythonEnv->toLong(PyObject_GetAttrString(syntaxError, "lineno")));
#if PY_VERSION_HEX < 0x02070000
// Syntax errors generated by earlier versions seem to have a line number off by 1
lineno -= 1;
#endif
QString msg;
// If the text attribute is not None then an offset in the code can be shown using a ^ character
PyObject *textObject = PyObject_GetAttrString(syntaxError, "text");
if(textObject != Py_None)
{
QString text = m_pythonEnv->toString(textObject, true).trimmed();
int offset = static_cast<int>(m_pythonEnv->toLong(PyObject_GetAttrString(syntaxError, "offset")));
QString offsetMarker = QString(offset-1, ' ') + "^";
msg =
"File \"%1\", line %2\n"
" %3\n"
" %4\n"
"SyntaxError: %5";
msg = msg.arg(filename);
msg = msg.arg(lineno);
msg = msg.arg(text, offsetMarker, exceptionAsStr);
}
else
{
msg =
"File \"%1\", line %2\n"
"SyntaxError: %3";
msg = msg.arg(filename);
msg = msg.arg(lineno);
msg = msg.arg(exceptionAsStr);
}
if(filename == identifier().c_str())
{
sendLineChangeSignal(lineno, true);
}
return msg;
}
/**
* Form a traceback
* @param msg The reference to the textstream to accumulate the message
* @param traceback A traceback object
* @param root If true then this is the root of the traceback
*/
void PythonScript::tracebackToMsg(QTextStream &msgStream,
PyTracebackObject *traceback, bool root) {
if (traceback == nullptr)
return;
msgStream << "\n ";
if (root)
msgStream << "at";
else
msgStream << "caused by";
int lineno = traceback->tb_lineno;
QString filename =
QString::fromAscii(TO_CSTRING(traceback->tb_frame->f_code->co_filename));
if (filename == identifier().c_str()) {
lineno = getRealLineNo(lineno);
sendLineChangeSignal(lineno, true);
}
msgStream << " line " << lineno << " in \'" << filename << "\'";
tracebackToMsg(msgStream, traceback->tb_next, false);
}