[mypyc] Calling tp_finalize from tp_dealloc. #18519
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mypyc/codegen/emitclass.py
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| @@ -779,6 +787,9 @@ def generate_dealloc_for_class( | |||
| emitter.emit_line("static void") | |||
| emitter.emit_line(f"{dealloc_func_name}({cl.struct_name(emitter.names)} *self)") | |||
| emitter.emit_line("{") | |||
| emitter.emit_line("if (Py_TYPE(self)->tp_finalize) {") | |||
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Can we avoid the runtime check if the caller would pass a flag indicating whether there is a __del__ method defined for the class?
| emitter.emit_line(f"{finalize_func_name}(PyObject *self)") | ||
| emitter.emit_line("{") | ||
| emitter.emit_line( | ||
| "{}{}{}(self);".format( |
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Should we preserve the current exception status, as suggested in the docs: https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_finalize
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Done. I needed to add a check for type != NULL to ensure that exceptions thrown in __del__ are not ignored.
* Calling PyObject_GC_IsFinalized(...) to ensure tp_finalize is called exactly once.
for more information, see https://pre-commit.ci
I did further testing including reference-loops. To avoid multiple calls to |
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I am on vacation for the next 6 days. Will come back and fix tests. |
Fixes mypyc/mypyc#1035
.tp_finalizeif the user has defined__del__..tp_finalizefrom.tp_dealloc.