Initialized an unready type during bases lookup

Author: qunaibit

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

@@ -1350,6 +1350,12 @@ PyAPI_FUNC(void) truffle_set_tp_flags(PyTypeObject* type, unsigned long flags) {
     type->tp_flags = flags;
 }
 
+PyAPI_FUNC(void) truffle_check_type_ready(PyTypeObject* type) {
+    if (!(type->tp_flags & Py_TPFLAGS_READY)) {
+        PyType_Ready(type);
+    }
+}
+
 PyAPI_FUNC(int) truffle_BASETYPE_check(PyObject* type) {
     return PyType_HasFeature(Py_TYPE(type), Py_TPFLAGS_BASETYPE);
 }

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

@@ -313,6 +313,7 @@ public enum NativeCAPISymbol implements NativeCExtSymbol {
     FUN_UNICODE_SUBTYPE_NEW("unicode_subtype_new"),
     FUN_CHECK_BASESIZE_FOR_GETSTATE("tuffle_check_basesize_for_getstate"),
     FUN_TRUFFLE_SET_TP_FLAGS("truffle_set_tp_flags"),
+    FUN_TRUFFLE_CHECK_TYPE_READY("truffle_check_type_ready"),
 
     /* PyDateTime_CAPI */
 

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/type/PythonManagedClass.java

@@ -35,6 +35,9 @@
 
 import com.oracle.graal.python.PythonLanguage;
 import com.oracle.graal.python.builtins.objects.PNone;
+import com.oracle.graal.python.builtins.objects.cext.capi.CExtNodes.PCallCapiFunction;
+import com.oracle.graal.python.builtins.objects.cext.capi.CExtNodes.ToSulongNode;
+import com.oracle.graal.python.builtins.objects.cext.capi.NativeCAPISymbol;
 import com.oracle.graal.python.builtins.objects.cext.capi.PythonClassNativeWrapper;
 import com.oracle.graal.python.builtins.objects.object.PythonObject;
 import com.oracle.graal.python.builtins.objects.tuple.PTuple;
@@ -267,6 +270,10 @@ private void unsafeSetSuperClass(PythonAbstractClass... newBaseClasses) {
         }
         for (PythonAbstractClass base : getBaseClasses()) {
             if (base != null) {
+                if (PGuards.isNativeClass(base)) {
+                    Object nativeBase = ToSulongNode.getUncached().execute(base);
+                    PCallCapiFunction.getUncached().call(NativeCAPISymbol.FUN_TRUFFLE_CHECK_TYPE_READY, nativeBase);
+                }
                 GetSubclassesNode.getUncached().execute(base).add(this);
             }
         }