diff options
Diffstat (limited to 'mesonbuild/interpreterbase/baseobjects.py')
| -rw-r--r-- | mesonbuild/interpreterbase/baseobjects.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mesonbuild/interpreterbase/baseobjects.py b/mesonbuild/interpreterbase/baseobjects.py index 8b1293c..ddfd4be 100644 --- a/mesonbuild/interpreterbase/baseobjects.py +++ b/mesonbuild/interpreterbase/baseobjects.py @@ -73,7 +73,11 @@ InterpreterObjectTypeVar = T.TypeVar('InterpreterObjectTypeVar', bound=HoldableO class ObjectHolder(InterpreterObject, T.Generic[InterpreterObjectTypeVar]): def __init__(self, obj: InterpreterObjectTypeVar, interpreter: 'Interpreter') -> None: super().__init__(subproject=interpreter.subproject) - assert isinstance(obj, HoldableObject), f'This is a bug: Trying to hold object of type `{type(obj).__name__}` that is not an `HoldableObject`' + # This causes some type checkers to assume that obj is a base + # HoldableObject, not the specialized type, so only do this assert in + # non-type checking situations + if not T.TYPE_CHECKING: + assert isinstance(obj, HoldableObject), f'This is a bug: Trying to hold object of type `{type(obj).__name__}` that is not an `HoldableObject`' self.held_object = obj self.interpreter = interpreter self.env = self.interpreter.environment |