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GH-96793: Implement PEP 479 in bytecode. (GH-99006)

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* Handle converting StopIteration to RuntimeError in bytecode.

* Add custom instruction for converting StopIteration into RuntimeError.
This commit is contained in:
Mark Shannon 2022-11-03 04:38:51 -07:00 • committed by GitHub
parent e9ac890c02
commit f4adb97506
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14 changed files with 220 additions and 96 deletions
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22
Objects/genobject.c
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@ -246,25 +246,9 @@ gen_send_ex2(PyGenObject *gen, PyObject *arg, PyObject **presult,
}
}
else {
if (PyErr_ExceptionMatches(PyExc_StopIteration)) {
const char *msg = "generator raised StopIteration";
if (PyCoro_CheckExact(gen)) {
msg = "coroutine raised StopIteration";
}
else if (PyAsyncGen_CheckExact(gen)) {
msg = "async generator raised StopIteration";
}
_PyErr_FormatFromCause(PyExc_RuntimeError, "%s", msg);
}
else if (PyAsyncGen_CheckExact(gen) &&
PyErr_ExceptionMatches(PyExc_StopAsyncIteration))
{
/* code in `gen` raised a StopAsyncIteration error:
raise a RuntimeError.
*/
const char *msg = "async generator raised StopAsyncIteration";
_PyErr_FormatFromCause(PyExc_RuntimeError, "%s", msg);
}
assert(!PyErr_ExceptionMatches(PyExc_StopIteration));
assert(!PyAsyncGen_CheckExact(gen) ||
!PyErr_ExceptionMatches(PyExc_StopAsyncIteration));
}
/* generator can't be rerun, so release the frame */