treewide: string-quote the first argument to T.cast

Using future annotations, type annotations become strings at runtime and
don't impact performance. This is not possible to do with T.cast though,
because it is a function argument instead of an annotation.

Quote the type argument everywhere in order to have the same effect as
future annotations. This also allows linters to better detect in some
cases that a given import is typing-only.

2 files changed, 4 insertions, 4 deletions

diff --git a/mesonbuild/dependencies/detect.py b/mesonbuild/dependencies/detect.py
index 0f99c36..a721cba 100644
--- a/mesonbuild/dependencies/detect.py
+++ b/mesonbuild/dependencies/detect.py
@@ -176,13 +176,13 @@ def _build_external_dependency_list(name: str, env: 'Environment', for_machine:
         # class method, if one exists, otherwise the list just consists of the
         # constructor
         if isinstance(packages[lname], type):
-            entry1 = T.cast(T.Type[ExternalDependency], packages[lname])  # mypy doesn't understand isinstance(..., type)
+            entry1 = T.cast('T.Type[ExternalDependency]', packages[lname])  # mypy doesn't understand isinstance(..., type)
             if issubclass(entry1, ExternalDependency):
                 # TODO: somehow make mypy understand that entry1(env, kwargs) is OK...
                 func: T.Callable[[], 'ExternalDependency'] = lambda: entry1(env, kwargs)  # type: ignore
                 dep = [func]
         else:
-            entry2 = T.cast(T.Union['DependencyFactory', 'WrappedFactoryFunc'], packages[lname])
+            entry2 = T.cast('T.Union[DependencyFactory, WrappedFactoryFunc]', packages[lname])
             dep = entry2(env, for_machine, kwargs)
         return dep
 
diff --git a/mesonbuild/dependencies/qt.py b/mesonbuild/dependencies/qt.py
index a004688..f645f0e 100644
--- a/mesonbuild/dependencies/qt.py
+++ b/mesonbuild/dependencies/qt.py
@@ -127,13 +127,13 @@ class _QtBase:
         else:
             self.qtpkgname = self.qtname
 
-        self.private_headers = T.cast(bool, kwargs.get('private_headers', False))
+        self.private_headers = T.cast('bool', kwargs.get('private_headers', False))
 
         self.requested_modules = mesonlib.stringlistify(mesonlib.extract_as_list(kwargs, 'modules'))
         if not self.requested_modules:
             raise DependencyException('No ' + self.qtname + '  modules specified.')
 
-        self.qtmain = T.cast(bool, kwargs.get('main', False))
+        self.qtmain = T.cast('bool', kwargs.get('main', False))
         if not isinstance(self.qtmain, bool):
             raise DependencyException('"main" argument must be a boolean')