From 0e016797bb7f0249015c9bce104a986fc5387d20 Mon Sep 17 00:00:00 2001
From: Mike Auty <mike.auty@gmail.com>
Date: Sat, 23 Nov 2019 20:44:22 +0000
Subject: [PATCH] Typing: Change signatures to co-variant Mapping from Dict

---
 volatility/framework/interfaces/symbols.py | 6 +++---
 volatility/framework/symbols/intermed.py   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/volatility/framework/interfaces/symbols.py b/volatility/framework/interfaces/symbols.py
index ad570b559..946b1ec8b 100644
--- a/volatility/framework/interfaces/symbols.py
+++ b/volatility/framework/interfaces/symbols.py
@@ -5,7 +5,7 @@
 import bisect
 import collections.abc
 from abc import abstractmethod, ABC
-from typing import Any, Dict, Iterable, List, Optional, Tuple, Type
+from typing import Any, Dict, Iterable, List, Optional, Tuple, Type, Mapping
 
 from volatility.framework import constants, exceptions, interfaces
 from volatility.framework.interfaces import configuration, objects
@@ -80,7 +80,7 @@ class BaseSymbolTableInterface:
                  name: str,
                  native_types: 'NativeTableInterface',
                  table_mapping: Optional[Dict[str, str]] = None,
-                 class_types: Optional[Dict[str, Type[objects.ObjectInterface]]] = None) -> None:
+                 class_types: Optional[Mapping[str, Type[objects.ObjectInterface]]] = None) -> None:
         """
 
         Args:
@@ -266,7 +266,7 @@ class SymbolTableInterface(BaseSymbolTableInterface, configuration.ConfigurableI
                  name: str,
                  native_types: 'NativeTableInterface',
                  table_mapping: Optional[Dict[str, str]] = None,
-                 class_types: Optional[Dict[str, Type[objects.ObjectInterface]]] = None) -> None:
+                 class_types: Optional[Mapping[str, Type[objects.ObjectInterface]]] = None) -> None:
         """Instantiates an SymbolTable based on an IntermediateSymbolFormat JSON file.  This is validated against the
         appropriate schema.  The validation can be disabled by passing validate = False, but this should almost never be
         done.
diff --git a/volatility/framework/symbols/intermed.py b/volatility/framework/symbols/intermed.py
index c7d507606..5035ea82e 100644
--- a/volatility/framework/symbols/intermed.py
+++ b/volatility/framework/symbols/intermed.py
@@ -83,7 +83,7 @@ class IntermediateSymbolTable(interfaces.symbols.SymbolTableInterface):
                  native_types: interfaces.symbols.NativeTableInterface = None,
                  table_mapping: Optional[Dict[str, str]] = None,
                  validate: bool = True,
-                 class_types: Optional[Dict[str, Type[interfaces.objects.ObjectInterface]]] = None) -> None:
+                 class_types: Optional[Mapping[str, Type[interfaces.objects.ObjectInterface]]] = None) -> None:
         """Instantiates a SymbolTable based on an IntermediateSymbolFormat JSON file.  This is validated against the
         appropriate schema.  The validation can be disabled by passing validate = False, but this should almost never be
         done.