interpreter: annotate subproject_stack
@@ -289,7 +289,7 @@ class Interpreter(InterpreterBase, HoldableObject):
self.project_args_frozen = False
self.global_args_frozen = False # implies self.project_args_frozen
self.subprojects: T.Dict[str, SubprojectHolder] = {}
- self.subproject_stack = []
+ self.subproject_stack: T.List[str] = []
self.configure_file_outputs = {}
# Passed from the outside, only used in subprojects.
if default_project_options:
