removed pallet::getter from pallet-sudo (paritytech#3370)

part of paritytech#3326 

@ggwpez @kianenigma @shawntabrizi

---------

Signed-off-by: Matteo Muraca <mmuraca247@gmail.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

substrate/frame/sudo/src/extension.rs

@@ -15,7 +15,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use crate::{Config, Pallet};
+use crate::{Config, Key};
 use codec::{Decode, Encode};
 use frame_support::{dispatch::DispatchInfo, ensure};
 use scale_info::TypeInfo;
@@ -86,7 +86,7 @@ where
 		info: &DispatchInfoOf<Self::Call>,
 		_len: usize,
 	) -> TransactionValidity {
-		let sudo_key: T::AccountId = <Pallet<T>>::key().ok_or(UnknownTransaction::CannotLookup)?;
+		let sudo_key: T::AccountId = Key::<T>::get().ok_or(UnknownTransaction::CannotLookup)?;
 		ensure!(*who == sudo_key, InvalidTransaction::BadSigner);
 
 		Ok(ValidTransaction {

substrate/frame/sudo/src/lib.rs

@@ -329,7 +329,6 @@ pub mod pallet {
 
 	/// The `AccountId` of the sudo key.
 	#[pallet::storage]
-	#[pallet::getter(fn key)]
 	pub(super) type Key<T: Config> = StorageValue<_, T::AccountId, OptionQuery>;
 
 	#[pallet::genesis_config]
@@ -352,7 +351,7 @@ pub mod pallet {
 			let sender = ensure_signed_or_root(origin)?;
 
 			if let Some(sender) = sender {
-				if Self::key().map_or(false, |k| k == sender) {
+				if Key::<T>::get().map_or(false, |k| k == sender) {
 					Ok(())
 				} else {
 					Err(Error::<T>::RequireSudo.into())

substrate/frame/sudo/src/tests.rs

@@ -28,7 +28,7 @@ use mock::{
 fn test_setup_works() {
 	// Environment setup, logger storage, and sudo `key` retrieval should work as expected.
 	new_test_ext(1).execute_with(|| {
-		assert_eq!(Sudo::key(), Some(1u64));
+		assert_eq!(Key::<Test>::get(), Some(1u64));
 		assert!(Logger::i32_log().is_empty());
 		assert!(Logger::account_log().is_empty());
 	});
@@ -135,7 +135,7 @@ fn set_key_basics() {
 	new_test_ext(1).execute_with(|| {
 		// A root `key` can change the root `key`
 		assert_ok!(Sudo::set_key(RuntimeOrigin::signed(1), 2));
-		assert_eq!(Sudo::key(), Some(2u64));
+		assert_eq!(Key::<Test>::get(), Some(2u64));
 	});
 
 	new_test_ext(1).execute_with(|| {
@@ -161,7 +161,7 @@ fn set_key_emits_events_correctly() {
 fn remove_key_works() {
 	new_test_ext(1).execute_with(|| {
 		assert_ok!(Sudo::remove_key(RuntimeOrigin::signed(1)));
-		assert!(Sudo::key().is_none());
+		assert!(Key::<Test>::get().is_none());
 		System::assert_has_event(TestEvent::Sudo(Event::KeyRemoved {}));
 
 		assert_noop!(Sudo::remove_key(RuntimeOrigin::signed(1)), Error::<Test>::RequireSudo);
@@ -173,11 +173,11 @@ fn remove_key_works() {
 fn using_root_origin_works() {
 	new_test_ext(1).execute_with(|| {
 		assert_ok!(Sudo::remove_key(RuntimeOrigin::root()));
-		assert!(Sudo::key().is_none());
+		assert!(Key::<Test>::get().is_none());
 		System::assert_has_event(TestEvent::Sudo(Event::KeyRemoved {}));
 
 		assert_ok!(Sudo::set_key(RuntimeOrigin::root(), 1));
-		assert_eq!(Some(1), Sudo::key());
+		assert_eq!(Some(1), Key::<Test>::get());
 	});
 }