u32 Refcounts, plus migration

bin/node/executor/tests/basic.rs

@@ -164,7 +164,7 @@ fn panic_execution_with_foreign_code_gives_error() {
 	let mut t = new_test_ext(bloaty_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(69u128, 0u8, 0u128, 0u128, 0u128).encode()
+		(69u128, 0u32, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(), 69_u128.encode());
 	t.insert(<frame_system::BlockHash<Runtime>>::hashed_key_for(0), vec![0u8; 32]);
@@ -193,7 +193,7 @@ fn bad_extrinsic_with_native_equivalent_code_gives_error() {
 	let mut t = new_test_ext(compact_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(0u32, 0u8, 69u128, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 69u128, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(), 69_u128.encode());
 	t.insert(<frame_system::BlockHash<Runtime>>::hashed_key_for(0), vec![0u8; 32]);
@@ -222,11 +222,11 @@ fn successful_execution_with_native_equivalent_code_gives_ok() {
 	let mut t = new_test_ext(compact_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(0u32, 0u8, 111 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 111 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(bob()),
-		(0u32, 0u8, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(
 		<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(),
@@ -265,11 +265,11 @@ fn successful_execution_with_foreign_code_gives_ok() {
 	let mut t = new_test_ext(bloaty_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(0u32, 0u8, 111 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 111 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(bob()),
-		(0u32, 0u8, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(
 		<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(),
@@ -702,7 +702,7 @@ fn panic_execution_gives_error() {
 	let mut t = new_test_ext(bloaty_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(0u32, 0u8, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(), 0_u128.encode());
 	t.insert(<frame_system::BlockHash<Runtime>>::hashed_key_for(0), vec![0u8; 32]);
@@ -731,11 +731,11 @@ fn successful_execution_gives_ok() {
 	let mut t = new_test_ext(compact_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(0u32, 0u8, 111 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 111 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(bob()),
-		(0u32, 0u8, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
+		(0u32, 0u32, 0 * DOLLARS, 0u128, 0u128, 0u128).encode()
 	);
 	t.insert(
 		<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(),

bin/node/executor/tests/fees.rs

@@ -133,11 +133,11 @@ fn transaction_fee_is_correct() {
 	let mut t = new_test_ext(compact_code_unwrap(), false);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(alice()),
-		(0u32, 0u8, 100 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS).encode()
+		(0u32, 0u32, 100 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS).encode()
 	);
 	t.insert(
 		<frame_system::Account<Runtime>>::hashed_key_for(bob()),
-		(0u32, 0u8, 10 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS).encode()
+		(0u32, 0u32, 10 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS, 0 * DOLLARS).encode()
 	);
 	t.insert(
 		<pallet_balances::TotalIssuance<Runtime>>::hashed_key().to_vec(),

bin/node/executor/tests/submit_transaction.rs

@@ -224,7 +224,7 @@ fn submitted_transaction_should_be_valid() {
 		let author = extrinsic.signature.clone().unwrap().0;
 		let address = Indices::lookup(author).unwrap();
 		let data = pallet_balances::AccountData { free: 5_000_000_000_000, ..Default::default() };
-		let account = frame_system::AccountInfo { nonce: 0u32, refcount: 0u8, data };
+		let account = frame_system::AccountInfo { nonce: 0, refcount: 0, data };
 		<frame_system::Account<Runtime>>::insert(&address, account);
 
 		// check validity

frame/executive/src/lib.rs

@@ -738,7 +738,7 @@ mod tests {
 				header: Header {
 					parent_hash: [69u8; 32].into(),
 					number: 1,
-					state_root: hex!("e8ff7b3dd4375f6f3a76e24a1999e2a7be2d15b353e49ac94ace1eae3e80eb87").into(),
+					state_root: hex!("465a1569d309039bdf84b0479d28064ea29e6584584dc7d788904bb14489c6f6").into(),
 					extrinsics_root: hex!("03170a2e7597b7b7e3d84c05391d139a62b157e78786d8c082f29dcf4c111314").into(),
 					digest: Digest { logs: vec![], },
 				},

frame/system/src/lib.rs

@@ -356,7 +356,7 @@ fn hash69<T: AsMut<[u8]> + Default>() -> T {
 type EventIndex = u32;
 
 /// Type used to encode the number of references an account has.
-pub type RefCount = u8;
+pub type RefCount = u32;
 
 /// Information of an account.
 #[derive(Clone, Eq, PartialEq, Default, RuntimeDebug, Encode, Decode)]
@@ -458,6 +458,9 @@ decl_storage! {
 		/// Stores the `spec_version` and `spec_name` of when the last runtime upgrade happened.
 		pub LastRuntimeUpgrade build(|_| Some(LastRuntimeUpgradeInfo::from(T::Version::get()))): Option<LastRuntimeUpgradeInfo>;
 
+		/// True if we have upgraded so that `type RefCount` is `u32`. False (default) if not.
+		UpgradedToU32RefCount build(|_| true): bool;
+
 		/// The execution phase of the block.
 		ExecutionPhase: Option<Phase>;
 	}
@@ -540,6 +543,18 @@ decl_module! {
 		/// The maximum length of a block (in bytes).
 		const MaximumBlockLength: u32 = T::MaximumBlockLength::get();
 
+		fn on_runtime_upgrade() -> frame_support::weights::Weight {
+			if !UpgradedToU32RefCount::get() {
+				Account::<T>::translate::<(T::Index, u8, T::AccountData), _>(|_key, (nonce, rc, data)|
+					Some(AccountInfo { nonce, refcount: rc as RefCount, data })
+				);
+				UpgradedToU32RefCount::put(true);
+				T::MaximumBlockWeight::get()
+			} else {
+				0
+			}
+		}
+
 		/// A dispatch that will fill the block weight up to the given ratio.
 		// TODO: This should only be available for testing, rather than in general usage, but
 		// that's not possible at present (since it's within the decl_module macro).