better decorator

PyTeX/format/formatting_config.py

@@ -1,22 +1,29 @@
-from typing import List, Optional, Union
+from typing import List, Optional, Union, Any, Tuple
 from .enums import NamingScheme, License
 from .generic_text import GenericText
 
 
-def generate_properties(attr_names):
+def generate_properties(attributes: List[Union[str, Tuple[str, Any]]]):
+    attributes = [
+        x if isinstance(x, Tuple) else (x, None) for x in attributes
+    ]
+
     def decorator(cls):
-        for attr_name in attr_names:
-            def get_attr(self, attr_name=attr_name):
-                return getattr(self, "_" + attr_name)
+        for [attribute, default_value] in attributes:
+            def get_attr(self, attribute=attribute, default_value=default_value):
+                if getattr(self, "_" + attribute) is not None:
+                    return getattr(self, "_" + attribute)
+                else:
+                    return default_value
 
             prop = property(get_attr)
-            setattr(cls, attr_name, prop)
+            setattr(cls, attribute, prop)
         return cls
 
     return decorator
 
 
-@generate_properties(['naming_scheme'])
+@generate_properties([('naming_scheme', False), 'license'])
 class FormattingConfig:
     def __init__(self):
         self._naming_scheme: Optional[Union[NamingScheme, str]] = None