merge 3.3-slp (Stackless python#70)

akruis · Nov 14, 2016 · 476232b · 476232b
2 parents 79f0e11 + cc52455
commit 476232b
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Showing 3 changed files with 6 additions and 0 deletions.
diff --git a/Objects/abstract.c b/Objects/abstract.c
@@ -2681,6 +2681,7 @@ PyIter_Next(PyObject *iter)
     STACKLESS_PROMOTE_METHOD(iter, tp_iternext);
     result = (*iter->ob_type->tp_iternext)(iter);
     STACKLESS_ASSERT();
+    STACKLESS_ASSERT_UNWINDING_VALUE_IS_NOT(result, NULL);
     if (result == NULL &&
         PyErr_Occurred() &&
         PyErr_ExceptionMatches(PyExc_StopIteration))

diff --git a/Objects/typeobject.c b/Objects/typeobject.c
@@ -5460,6 +5460,7 @@ wrap_next(PyObject *self, PyObject *args, void *wrapped)
     STACKLESS_PROMOTE_ALL();
     res = (*func)(self);
     STACKLESS_ASSERT();
+    STACKLESS_ASSERT_UNWINDING_VALUE_IS_NOT(res, NULL);
     if (res == NULL && !PyErr_Occurred())
         PyErr_SetNone(PyExc_StopIteration);
     return res;

diff --git a/Stackless/core/stackless_impl.h b/Stackless/core/stackless_impl.h
@@ -181,6 +181,9 @@ PyAPI_FUNC(PyTaskletObject *) slp_get_watchdog(PyThreadState *ts, int interrupt)
 #define STACKLESS_RETVAL(obj) \
     (STACKLESS_UNWINDING(obj) ? Py_UnwindToken->tempval : (obj))
 
+#define STACKLESS_ASSERT_UNWINDING_VALUE_IS_NOT(obj, val) \
+    assert(!STACKLESS_UNWINDING(obj) || ((Py_UnwindToken->tempval) != (val)))
+
 /* macros for setting/resetting the stackless flag */
 
 #define STACKLESS_GETARG() int stackless = (stackless = slp_try_stackless, \
@@ -555,6 +558,7 @@ PyObject * slp_get_channel_callback(void);
 #define STACKLESS_ASSERT() assert(1)
 
 #define STACKLESS_RETVAL(obj) (obj)
+#define STACKLESS_ASSERT_UNWINDING_VALUE_IS_NOT(val) assert(1)
 
 #define STACKLESS_DECLARE_METHOD(type, meth)