move a bunch of imports into TYPE_CHECKING blocks

These are only used for type checking, so don't bother importing them at
runtime.

Generally add future annotations at the same time, to make sure that
existing uses of these imports don't need to be quoted.

1 files changed, 4 insertions, 4 deletions

diff --git a/mesonbuild/interpreter/interpreterobjects.py b/mesonbuild/interpreter/interpreterobjects.py
index bf668f3..6cc636b 100644
--- a/mesonbuild/interpreter/interpreterobjects.py
+++ b/mesonbuild/interpreter/interpreterobjects.py
@@ -16,10 +16,10 @@ from ..modules import ModuleReturnValue, ModuleObject, ModuleState, ExtensionMod
 from ..backend.backends import TestProtocol
 from ..interpreterbase import (
                                ContainerTypeInfo, KwargInfo, MesonOperator,
-                               InterpreterObject, MesonInterpreterObject, ObjectHolder, MutableInterpreterObject,
-                               FeatureCheckBase, FeatureNew, FeatureDeprecated,
+                               MesonInterpreterObject, ObjectHolder, MutableInterpreterObject,
+                               FeatureNew, FeatureDeprecated,
                                typed_pos_args, typed_kwargs, typed_operator,
-                               noArgsFlattening, noPosargs, noKwargs, unholder_return, TYPE_var, TYPE_kwargs, TYPE_nvar, TYPE_nkwargs,
+                               noArgsFlattening, noPosargs, noKwargs, unholder_return,
                                flatten, resolve_second_level_holders, InterpreterException, InvalidArguments, InvalidCode)
 from ..interpreter.type_checking import NoneType, ENV_SEPARATOR_KW
 from ..dependencies import Dependency, ExternalLibrary, InternalDependency
@@ -32,7 +32,7 @@ if T.TYPE_CHECKING:
     from . import kwargs
     from ..cmake.interpreter import CMakeInterpreter
     from ..envconfig import MachineInfo
-    from ..interpreterbase import SubProject
+    from ..interpreterbase import FeatureCheckBase, InterpreterObject, SubProject, TYPE_var, TYPE_kwargs, TYPE_nvar, TYPE_nkwargs
     from .interpreter import Interpreter
 
     from typing_extensions import TypedDict