Make upb python FieldDescriptor able to access the constant cpp type attributes

To match the same behavior with pure python and cpp extension

PiperOrigin-RevId: 561077787

python/google/protobuf/internal/descriptor_test.py

@@ -1132,8 +1132,12 @@ class MakeDescriptorTest(unittest.TestCase):
     result = descriptor.MakeDescriptor(message_type)
     self.assertEqual(result.fields[0].cpp_type,
                      descriptor.FieldDescriptor.CPPTYPE_UINT64)
+    self.assertEqual(result.fields[0].cpp_type,
+                     result.fields[0].CPPTYPE_UINT64)
     self.assertEqual(result.fields[1].cpp_type,
                      descriptor.FieldDescriptor.CPPTYPE_MESSAGE)
+    self.assertEqual(result.fields[1].cpp_type,
+                     result.fields[1].CPPTYPE_MESSAGE)
     self.assertEqual(result.fields[1].message_type.containing_type,
                      result)
     self.assertEqual(result.nested_types[0].fields[0].full_name,

upb/python/descriptor.c

@@ -917,8 +917,6 @@ static PyObject* PyUpb_FieldDescriptor_GetType(PyUpb_DescriptorBase* self,
   return PyLong_FromLong(upb_FieldDef_Type(self->def));
 }
 
-static PyObject* PyUpb_FieldDescriptor_GetCppType(PyUpb_DescriptorBase* self,
-                                                  void* closure) {
 // Enum values copied from descriptor.h in C++.
 enum CppType {
   CPPTYPE_INT32 = 1,     // TYPE_INT32, TYPE_SINT32, TYPE_SFIXED32
@@ -932,6 +930,9 @@ static PyObject* PyUpb_FieldDescriptor_GetCppType(PyUpb_DescriptorBase* self,
   CPPTYPE_STRING = 9,    // TYPE_STRING, TYPE_BYTES
   CPPTYPE_MESSAGE = 10,  // TYPE_MESSAGE, TYPE_GROUP
 };
+
+static PyObject* PyUpb_FieldDescriptor_GetCppType(PyUpb_DescriptorBase* self,
+                                                  void* closure) {
   static const uint8_t cpp_types[] = {
       -1,
       [kUpb_CType_Int32] = CPPTYPE_INT32,
@@ -1697,5 +1698,16 @@ bool PyUpb_InitDescriptor(PyObject* m) {
          PyUpb_SetIntAttr(fd, "TYPE_SINT64", kUpb_FieldType_SInt64) &&
          PyUpb_SetIntAttr(fd, "TYPE_STRING", kUpb_FieldType_String) &&
          PyUpb_SetIntAttr(fd, "TYPE_UINT32", kUpb_FieldType_UInt32) &&
-         PyUpb_SetIntAttr(fd, "TYPE_UINT64", kUpb_FieldType_UInt64);
+         PyUpb_SetIntAttr(fd, "TYPE_UINT64", kUpb_FieldType_UInt64) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_INT32", CPPTYPE_INT32) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_INT64", CPPTYPE_INT64) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_UINT32", CPPTYPE_UINT32) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_UINT64", CPPTYPE_UINT64) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_DOUBLE", CPPTYPE_DOUBLE) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_FLOAT", CPPTYPE_FLOAT) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_BOOL", CPPTYPE_BOOL) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_ENUM", CPPTYPE_ENUM) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_STRING", CPPTYPE_STRING) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_BYTES", CPPTYPE_STRING) &&
+         PyUpb_SetIntAttr(fd, "CPPTYPE_MESSAGE", CPPTYPE_MESSAGE);
 }