Update 2025-04-13_16:25:39

venv/lib/python3.11/site-packages/greenlet/TExceptionState.cpp

@@ -0,0 +1,62 @@
+#ifndef GREENLET_EXCEPTION_STATE_CPP
+#define GREENLET_EXCEPTION_STATE_CPP
+
+#include <Python.h>
+#include "TGreenlet.hpp"
+
+namespace greenlet {
+
+
+ExceptionState::ExceptionState()
+{
+    this->clear();
+}
+
+void ExceptionState::operator<<(const PyThreadState *const tstate) noexcept
+{
+    this->exc_info = tstate->exc_info;
+    this->exc_state = tstate->exc_state;
+}
+
+void ExceptionState::operator>>(PyThreadState *const tstate) noexcept
+{
+    tstate->exc_state = this->exc_state;
+    tstate->exc_info =
+        this->exc_info ? this->exc_info : &tstate->exc_state;
+    this->clear();
+}
+
+void ExceptionState::clear() noexcept
+{
+    this->exc_info = nullptr;
+    this->exc_state.exc_value = nullptr;
+#if !GREENLET_PY311
+    this->exc_state.exc_type = nullptr;
+    this->exc_state.exc_traceback = nullptr;
+#endif
+    this->exc_state.previous_item = nullptr;
+}
+
+int ExceptionState::tp_traverse(visitproc visit, void* arg) noexcept
+{
+    Py_VISIT(this->exc_state.exc_value);
+#if !GREENLET_PY311
+    Py_VISIT(this->exc_state.exc_type);
+    Py_VISIT(this->exc_state.exc_traceback);
+#endif
+    return 0;
+}
+
+void ExceptionState::tp_clear() noexcept
+{
+    Py_CLEAR(this->exc_state.exc_value);
+#if !GREENLET_PY311
+    Py_CLEAR(this->exc_state.exc_type);
+    Py_CLEAR(this->exc_state.exc_traceback);
+#endif
+}
+
+
+}; // namespace greenlet
+
+#endif // GREENLET_EXCEPTION_STATE_CPP