changed behaviour of provider decorator to enable annotated types providing

Author: sergey-zinchenko

injector/__init__.py

@@ -1325,7 +1325,7 @@ def provide_strs_also(self) -> List[str]:
 def _mark_provider_function(function: Callable, *, allow_multi: bool) -> None:
     scope_ = getattr(function, '__scope__', None)
     try:
-        annotations = get_type_hints(function)
+        annotations = get_type_hints(function, include_extras=True)
     except NameError:
         return_type = '__deferred__'
     else:

injector_test.py

@@ -1767,3 +1767,21 @@ def target(val_foo: foo, val_bar: bar):
         pass
 
     assert get_bindings(target) == {'val_foo': foo, 'val_bar': bar}
+
+
+def test_annotated_injection_from_provider_to_attribute():
+    foo = Annotated[str, "foo"]
+    bar = Annotated[str, "bar"]
+
+    class TestModule(Module):
+        @provider
+        def provide_foo(self) -> foo:
+            return "foo"
+
+        @multiprovider
+        def provide_bars(self) -> list[bar]:
+            return ["bar"]
+
+    injector = Injector([TestModule])
+    assert injector.binder.has_explicit_binding_for(foo)
+    assert injector.binder.has_explicit_binding_for(list[bar])