Inherit tp_iter and tp_iternext

Author: msimacek

graalpython/com.oracle.graal.python.cext/src/typeobject.c

@@ -343,6 +343,10 @@ static void inherit_slots(PyTypeObject *type, PyTypeObject *base) {
         }
         /* COPYSLOT(tp_call); */
     }
+    {
+        COPYSLOT(tp_iter);
+        COPYSLOT(tp_iternext);
+    }
 
     if ((type->tp_flags & Py_TPFLAGS_HAVE_FINALIZE) &&
         (base->tp_flags & Py_TPFLAGS_HAVE_FINALIZE)) {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/DynamicObjectNativeWrapper.java

@@ -71,6 +71,7 @@
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__GETATTRIBUTE__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__HASH__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__INIT__;
+import static com.oracle.graal.python.nodes.SpecialMethodNames.__ITER__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__NEW__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__NEXT__;
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__REPR__;
@@ -666,6 +667,13 @@ static Object doTpSetattro(PythonManagedClass object, @SuppressWarnings("unused"
             return PyProcsWrapper.createSetAttrWrapper(lookupAttrNode.execute(object, __SETATTR__));
         }
 
+        @Specialization(guards = "eq(TP_ITER, key)")
+        static Object doTpIter(PythonManagedClass object, @SuppressWarnings("unused") PythonNativeWrapper nativeWrapper, @SuppressWarnings("unused") String key,
+                        @Cached LookupAttributeInMRONode.Dynamic lookupAttrNode,
+                        @Shared("toSulongNode") @Cached ToSulongNode toSulongNode) {
+            return toSulongNode.execute(lookupAttrNode.execute(object, __ITER__));
+        }
+
         @Specialization(guards = "eq(TP_ITERNEXT, key)")
         static Object doTpIternext(PythonManagedClass object, @SuppressWarnings("unused") PythonNativeWrapper nativeWrapper, @SuppressWarnings("unused") String key,
                         @Cached LookupAttributeInMRONode.Dynamic lookupAttrNode,

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/NativeMember.java

@@ -96,6 +96,7 @@ public enum NativeMember {
     TP_SETATTR("tp_setattr"),
     TP_GETATTRO("tp_getattro"),
     TP_SETATTRO("tp_setattro"),
+    TP_ITER("tp_iter"),
     TP_ITERNEXT("tp_iternext"),
     TP_NEW("tp_new"),
     TP_INIT("tp_init"),