Pass options correctly through from_bytes to FlatArrayMessageReader

capnp/lib/capnp.pyx

@@ -3783,7 +3783,9 @@ cdef class _FlatArrayMessageReader(_MessageReader):
             else:
                 self._object_to_pin = buf
 
-        self.thisptr = new schema_cpp.FlatArrayMessageReader(schema_cpp.WordArrayPtr(<schema_cpp.word*>ptr, sz//8))
+        self.thisptr = new schema_cpp.FlatArrayMessageReader(
+            schema_cpp.WordArrayPtr(<schema_cpp.word*>ptr, sz//8),
+            opts)
 
     def __dealloc__(self):
         del self.thisptr

test/test_serialization.py

@@ -168,3 +168,26 @@ def test_pickle(all_types):
     msg2 = pickle.loads(data)
 
     test_regression.check_all_types(msg2)
+
+def test_from_bytes_traversal_limit(all_types):
+    size = 1024
+    bld = all_types.TestAllTypes.new_message()
+    bld.init("structList", size)
+    data = bld.to_bytes()
+
+    msg = all_types.TestAllTypes.from_bytes(data,
+        traversal_limit_in_words=2**62)
+    for i in range(0, size):
+        assert msg.structList[i].uInt8Field == 0
+
+
+def test_from_bytes_packed_traversal_limit(all_types):
+    size = 1024
+    bld = all_types.TestAllTypes.new_message()
+    bld.init("structList", size)
+    data = bld.to_bytes_packed()
+
+    msg = all_types.TestAllTypes.from_bytes_packed(data,
+        traversal_limit_in_words=2**62)
+    for i in range(0, size):
+        assert msg.structList[i].uInt8Field == 0