Commit 829b40ae authored by Stefan Behnel's avatar Stefan Behnel

add error case found by CPython test "test_await_15" in test_coroutines_pep492

parent 614e0729
...@@ -142,7 +142,14 @@ static CYTHON_INLINE PyObject* __Pyx__Coroutine_Yield_From(__pyx_CoroutineObject ...@@ -142,7 +142,14 @@ static CYTHON_INLINE PyObject* __Pyx__Coroutine_Yield_From(__pyx_CoroutineObject
/* Warning was converted to an error. */ /* Warning was converted to an error. */
return NULL; return NULL;
} }
if (unlikely(((__pyx_CoroutineObject*)source)->yieldfrom)) {
PyErr_SetString(
PyExc_RuntimeError,
"coroutine is being awaited already");
retval = NULL;
} else {
retval = __Pyx_Generator_Next(source); retval = __Pyx_Generator_Next(source);
}
if (retval) { if (retval) {
Py_INCREF(source); Py_INCREF(source);
gen->yieldfrom = source; gen->yieldfrom = source;
......
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