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exception constructor consistency improvements (fixes #492)

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This commit is contained in:
Wenzel Jakob 2016-11-16 17:59:56 +01:00
parent 5027c4f95b
commit 281ccc692c
1 changed files with 14 additions and 10 deletions
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24
include/pybind11/pybind11.h
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@ -1429,12 +1429,14 @@ void register_exception_translator(ExceptionTranslator&& translator) {
template <typename type>
class exception : public object {
public:
exception(module &m, const std::string &name, PyObject* base=PyExc_Exception) {
std::string full_name = std::string(PyModule_GetName(m.ptr()))
+ std::string(".") + name;
char* exception_name = const_cast<char*>(full_name.c_str());
m_ptr = PyErr_NewException(exception_name, base, NULL);
m.add_object(name.c_str(), *this);
exception(handle scope, const char *name, PyObject *base = PyExc_Exception) {
std::string full_name = scope.attr("__name__").cast<std::string>() +
std::string(".") + name;
m_ptr = PyErr_NewException((char *) full_name.c_str(), base, NULL);
if (hasattr(scope, name))
pybind11_fail("Error during initialization: multiple incompatible "
"definitions with name \"" + std::string(name) + "\"");
scope.attr(name) = *this;
}
// Sets the current python exception to this exception object with the given message
@ -1448,14 +1450,16 @@ public:
* This is intended for simple exception translations; for more complex translation, register the
* exception object and translator directly.
*/
template <typename CppException> exception<CppException>& register_exception(module &m, const std::string &name, PyObject* base = PyExc_Exception) {
static exception<CppException> ex(m, name, base);
template <typename CppException>
exception<CppException> &register_exception(handle scope,
const char *name,
PyObject *base = PyExc_Exception) {
static exception<CppException> ex(scope, name, base);
register_exception_translator([](std::exception_ptr p) {
if (!p) return;
try {
std::rethrow_exception(p);
}
catch (const CppException &e) {
} catch (const CppException &e) {
ex(e.what());
}
});