From 81c145f6a6e87a171f1c4b1b30b07b059fb43324 Mon Sep 17 00:00:00 2001
From: Talley Lambert <talley.lambert@gmail.com>
Date: Mon, 11 Jul 2022 06:12:39 -0400
Subject: [PATCH] feat: frozen models

---
 src/app_model/registries/_register.py | 12 +++++++-----
 src/app_model/types/_base.py          |  1 +
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/app_model/registries/_register.py b/src/app_model/registries/_register.py
index ce23c25..2882ba7 100644
--- a/src/app_model/registries/_register.py
+++ b/src/app_model/registries/_register.py
@@ -223,11 +223,13 @@ def _register_action_obj(
     # keybinding
     for keyb in action.keybindings or ():
         if action.enablement is not None:
-            _keyb = keyb.copy()
-            if _keyb.when is None:
-                _keyb.when = action.enablement
-            else:
-                _keyb.when = action.enablement | _keyb.when
+            kwargs = keyb.dict()
+            kwargs["when"] = (
+                action.enablement
+                if keyb.when is None
+                else action.enablement | keyb.when
+            )
+            _keyb = type(keyb)(**kwargs)
         else:
             _keyb = keyb
         if _d := app.keybindings.register_keybinding_rule(action.id, _keyb):
diff --git a/src/app_model/types/_base.py b/src/app_model/types/_base.py
index 27484dc..8066dd3 100644
--- a/src/app_model/types/_base.py
+++ b/src/app_model/types/_base.py
@@ -6,3 +6,4 @@ class _StrictModel(BaseModel):
 
     class Config:
         extra = Extra.forbid
+        frozen = True