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Copy pathutils.cc
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88 lines (67 loc) · 2.83 KB
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#include <Python.h>
#include <pyerrors.h>
#include "utils.h"
Handle<Value> ThrowPythonException() {
PyObject *ptype, *pvalue, *ptraceback;
PyErr_Fetch(&ptype, &pvalue, &ptraceback);
PyErr_NormalizeException(&ptype, &pvalue, &ptraceback);
// maybe useless to protect against bad use of ThrowPythonException ?
if(pvalue == NULL) {
Nan::ThrowError("No exception found");
}
// handle exception message
Local<v8::String> msg = Nan::New<String>("Python Error: ").ToLocalChecked();
if (ptype != NULL) {
msg = v8::String::Concat(msg, Nan::New<String>(PyString_AsString(PyObject_Str(PyObject_GetAttrString(ptype, "__name__")))).ToLocalChecked());
msg = v8::String::Concat(msg, Nan::New<String>(": ").ToLocalChecked());
if (pvalue != NULL) {
msg = v8::String::Concat(msg, Nan::New<String>(PyString_AsString(PyObject_Str(pvalue))).ToLocalChecked());
}
msg = v8::String::Concat(msg, Nan::New<String>("\n").ToLocalChecked());
}
if (ptraceback != NULL) {
PyObject *module_name, *pyth_module, *pyth_func;
module_name = PyString_FromString("traceback");
pyth_module = PyImport_Import(module_name);
Py_DECREF(module_name);
pyth_func = PyObject_GetAttrString(pyth_module, "format_exception");
Py_DECREF(pyth_module);
if (pyth_func) {
PyObject *pyth_val, *pystr, *ret;
char *str;
char *full_backtrace;
pyth_val = PyObject_CallFunctionObjArgs(pyth_func, ptype, pvalue, ptraceback, NULL);
ret = PyUnicode_Join(PyUnicode_FromString(""), pyth_val);
pystr = PyObject_Str(ret);
str = PyString_AsString(pystr);
full_backtrace = strdup(str);
Py_DECREF(pyth_func);
Py_DECREF(pyth_val);
Py_DECREF(pystr);
Py_DECREF(str);
msg = v8::String::Concat(msg, Nan::New<String>("\n").ToLocalChecked());
msg = v8::String::Concat(msg, Nan::New<String>(full_backtrace).ToLocalChecked());
} else {
msg = v8::String::Concat(msg, Nan::New<String>("\n").ToLocalChecked());
msg = v8::String::Concat(msg, Nan::New<String>(PyString_AsString(PyObject_Str(ptraceback))).ToLocalChecked());
}
}
Local<Value> err;
if (PyErr_GivenExceptionMatches(ptype, PyExc_ReferenceError)) {
err = Exception::ReferenceError(msg);
}
else if (PyErr_GivenExceptionMatches(ptype, PyExc_SyntaxError)) {
err = Exception::SyntaxError(msg);
}
else if (PyErr_GivenExceptionMatches(ptype, PyExc_TypeError)) {
err = Exception::TypeError(msg);
}
else {
err = Exception::Error(msg);
}
// @TODO : handle stacktrace
Py_XDECREF(ptype);
Py_XDECREF(pvalue);
Py_XDECREF(ptraceback);
Nan::ThrowError(err);
}