Fix after review for parts 1 & 2

multiversx_sdk/abi/codec.py

@@ -1,6 +1,5 @@
 
 import io
-from typing import Any
 
 from multiversx_sdk.abi.interface import SingleValue
 
@@ -14,20 +13,20 @@ def encode_nested(self, value: SingleValue) -> bytes:
         value.encode_nested(buffer)
         return buffer.getvalue()
 
-    def encode_top_level(self, value: Any) -> bytes:
+    def encode_top_level(self, value: SingleValue) -> bytes:
         buffer = io.BytesIO()
         value.encode_top_level(buffer)
         return buffer.getvalue()
 
-    def decode_nested(self, data: bytes, value: Any) -> None:
+    def decode_nested(self, data: bytes, value: SingleValue) -> None:
         reader = io.BytesIO(data)
 
         try:
             value.decode_nested(reader)
         except ValueError as e:
             raise ValueError(f"cannot decode (nested) {type(value)}, because of: {e}")
 
-    def decode_top_level(self, data: bytes, value: Any) -> None:
+    def decode_top_level(self, data: bytes, value: SingleValue) -> None:
         try:
             value.decode_top_level(data)
         except ValueError as e:

multiversx_sdk/abi/fields.py

@@ -8,6 +8,8 @@ class Field:
     def __init__(self, name: str, value: SingleValue) -> None:
         self.name = name
         self.value = value
+
+
 def encode_fields_nested(fields: List[Field], writer: io.BytesIO):
     for field in fields:
         try:

multiversx_sdk/abi/serializer.py

@@ -1,6 +1,7 @@
 from typing import Any, List, Sequence
 
 from multiversx_sdk.abi.codec import Codec
+from multiversx_sdk.abi.interface import SingleValue
 from multiversx_sdk.abi.parts import PartsHolder
 from multiversx_sdk.abi.values_multi import *
 
@@ -30,7 +31,7 @@ def serialize_to_parts(self, input_values: Sequence[Any]) -> List[bytes]:
     def _do_serialize(self, parts_holder: PartsHolder, input_values: Sequence[Any]):
         for i, value in enumerate(input_values):
             if value is None:
-                raise ValueError("cannot serialize nil value")
+                raise ValueError("cannot serialize null value")
 
             if isinstance(value, OptionalValue):
                 if i != len(input_values) - 1:
@@ -48,11 +49,13 @@ def _do_serialize(self, parts_holder: PartsHolder, input_values: Sequence[Any]):
                     raise ValueError("variadic values must be last among input values")
 
                 self._do_serialize(parts_holder, value.items)
-            else:
+            elif isinstance(value, SingleValue):
                 parts_holder.append_empty_part()
                 self._serialize_single_value(parts_holder, value)
+            else:
+                raise ValueError(f"cannot serialize value of type: {type(value).__name__}")
 
-    def _serialize_single_value(self, parts_holder: PartsHolder, value: Any):
+    def _serialize_single_value(self, parts_holder: PartsHolder, value: SingleValue):
         data = self.codec.encode_top_level(value)
         parts_holder.append_to_last_part(data)
 
@@ -67,7 +70,7 @@ def deserialize_parts(self, parts: Sequence[bytes], output_values: Sequence[Any]
     def _do_deserialize(self, parts_holder: PartsHolder, output_values: Sequence[Any]):
         for i, value in enumerate(output_values):
             if value is None:
-                raise ValueError("cannot deserialize into nil value")
+                raise ValueError("cannot deserialize into null value")
 
             if isinstance(value, OptionalValue):
                 if i != len(output_values) - 1:
@@ -87,8 +90,10 @@ def _do_deserialize(self, parts_holder: PartsHolder, output_values: Sequence[Any
                     raise ValueError("variadic values must be last among output values")
 
                 self._deserialize_variadic_values(parts_holder, value)
-            else:
+            elif isinstance(value, SingleValue):
                 self._deserialize_single_value(parts_holder, value)
+            else:
+                raise ValueError(f"cannot deserialize value of type: {type(value).__name__}")
 
     def _deserialize_variadic_values(self, parts_holder: PartsHolder, value: VariadicValues):
         if value.item_creator is None:
@@ -101,7 +106,7 @@ def _deserialize_variadic_values(self, parts_holder: PartsHolder, value: Variadi
 
             value.items.append(new_item)
 
-    def _deserialize_single_value(self, parts_holder: PartsHolder, value: Any):
+    def _deserialize_single_value(self, parts_holder: PartsHolder, value: SingleValue):
         part = parts_holder.read_whole_focused_part()
         self.codec.decode_top_level(part, value)
         parts_holder.focus_on_next_part()

multiversx_sdk/abi/serializer_test.py

@@ -146,7 +146,7 @@ def test_deserialize():
     serializer = Serializer(parts_separator="@")
 
     # nil destination
-    with pytest.raises(ValueError, match="^cannot deserialize into nil value$"):
+    with pytest.raises(ValueError, match="^cannot deserialize into null value$"):
         serializer.deserialize("", [None])
 
     # u8

multiversx_sdk/abi/token_identifier_value.py

@@ -1,5 +1,3 @@
-
-
 from typing import Any
 
 from multiversx_sdk.abi.string_value import StringValue