Enrich metadata with type information (#8615)

* Cargo.lock after merge

* Restore scale-info feature

* Fully qualify TypeInfo derive

* Skip PendingSwap T

* Add missing skip_type_params attr

* metadata docs features

* Reduce pallet event attribute to struct

* Cargo.lock

* Update frame/balances/src/tests_composite.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Line widths check

* Cargo.lock

* Add scale-info/std

* Update frame/system/src/lib.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Use `skip_type_params` to remove `TypeInfo` requirements on checks

* Revert "Remove unused Call metadata stuff"

This reverts commit 41311f85

* Skip BalanceSwapAction type parameter

* Remove unused event metadata macro

* Update frame-metadata

* Update primitives/npos-elections/compact/src/codec.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Manual TypeInfo for Header

* Remove TypeInfo requirement for consts in BoundedVec etc.

* Another TypeInfo bound removed

* review: fix indentation

* TypeInfo impls for Identity types

* Add some todos to add custom TypeInfo impls

* Update frame/support/procedural/src/pallet/expand/pallet_struct.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Add some todos to add custom TypeInfo impls

* Add a test for manual Data TypeInfo impl

* Add custom TypeInfo impl for Vote

* Era custom TypeInfo crimes

* Revert finality-grandpa version to 0.14.z

* review: renamed module to pallet_constants_metadata

* New line at end of file

* Add missing scale-info/std

* Update frame/support/src/storage/types/mod.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* Remove StorageEntryType::Map unused flag

* Add missing scale-info dependency after merge

* SignedExtension::AdditionalSigned metadata

* Update frame-metadata, use abbreviated docs and args fields

* Update frame/example/Cargo.toml

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Add scale_info/std and remove unused scale-info dependency

* Remove scale-info dependency

* Remove treasury pallet::metadata

* Remove redundant Event test

* Add back scale-info as dev dependency

* fix error metadata when no error defined in decl_module

* Add Module3 to tests

* Fix metadata test

* Add docs feature to frame-support test

* WIP fixing pallet metadata test

* Remove redundant FunctionMetadata, FunctionArgumentMetadata as per https://github.com/paritytech/frame-metadata/pull/20

* Use main branch of frame-metadata

* Use patch of scale-info for latest changes

* Use latest patched scale-info

* Manual TypeInfo for DigestItem

* Manual TypeInfo for DigestItem

* Update scale-info

* Skip __Ignore variants for Error, depends on https://github.com/paritytech/scale-info/pull/117

* Named fields for FRAME v2 pallet Call variants

* Named fields for FRAME v1 pallet Call variants

* Add missing scale-info dependency

* WIP expand benchmark call variant

* fix benchmark with new function

create a new function for each variant of a pallet call.
This function is called by benchmarking macro in order not to break call
creation with unnamed argument

* fix tests

* more fix

* Fix staking tests

* Fix offchain workers calls

* Cherry pick rustfmt.toml from master

* cargo +nightly-2021-06-22 fmt --all

* Update to new call variant structs

* More call variant struct updates

* Remove unused import

* More call variant structs

* More call variant structs

* Even more call variant structs

* Mooar variant structs

* Evermore variant structs

* Call variant structs ad infinitum

* Fmt

* More call variants

* Last call variant

* Call variants all done?

* Fix SS58Prefix type

* Potential workaround for BitFlags<IdentityFields> TypeInfo

* Enable docs capturing for Call, Event, and Error types

* Fix IdentityFields TypeInfo

* Remove metadata-docs feature

* Add capture_docs = true for legacy Call, Event and Error types

* Fmt

* Fix metadata test type

* Update benchmarks with call struct variants

* Fmt

* More test fixes

* Fmt

* Fix benches

* Use latest capture_docs attr

* Latest scale_info

* Fmt

* review: change &Vec to &[]

* Remove pallet metadata attr

* review: remove commented out test code

* review: skip_type_params trailing comma suggestion

* Update to scale-info 0.10.0

* Update construct_runtime ui tests, different because of metadata TypeInfo impls

* Add some TypeInfo derives for UI tests

* Update storage ensure span ui stderrs

* Update call argument bound ui tests

Possibly changed because change from tuple to struct variants?

* Add scale-info dev dependency

* Update to latest finality-grandpa release

* review: missing newline

* review: missing scale-info/std

* review: remove duplicate scale-info/std

* review: remove fully qualified TypeInfo

* review: add missing scale-info/std

* review: remove unnecessary imports.

* Fmt

* Use crates.io RC version of frame-metadata

* Remove scale-info/std because it is a dev dependency

* Add missing scale_info dev-dependency for test

* Delete empty metadata folder

* Fix sp_std import

* review: improve manual UncheckedExtrinsic TypeInfo impl

* review: use full scale-info for dev-dependency

* Remove DefaultByteGetter impl

* review: derive TypeInfo for generic header

* Fmt

* Update primitives/runtime/src/generic/unchecked_extrinsic.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Update primitives/runtime/src/generic/unchecked_extrinsic.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Update bin/node/executor/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update frame/identity/src/types.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update frame/support/src/dispatch.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Remove redundant derive

* Simplify scale-info dependency

* Strip underscore prefix from call variant struct names

* Another underscore field

* More underscore fields

* Another underscore field

* Update to frame-metadata 14.0.0-rc.2 with combined StorageEntryType::Map

* Fmt

* Revert weights formatting

* Fix up some tests

* Fix up some tests for StorageEntryTypeMetadata

* scale-info dev dependency

* Fix test error

* Add missing TypeInfo derives

* Add back missing scale-info dependency

* Add back missing scale-info dependency

* Fix npos compact impls

* Cargo.lock

* Fmt

* Fix errors

* Fmt

* Fix renamed raw_solution field

* Fix error

* Fmt

* Fix some benchmarks

* Fmt

* Stray R

* Fix

* Add missing TypeInfos

* ui test fix

* Fix line widths

* Revert "ui test fix"

This reverts commit 2d15ec058a216e3f92d713f1174603a2bb1eac65.

* Upgrade to scale-info 0.11.0

* Revert "Upgrade to scale-info 0.11.0"

This reverts commit 047bb179085a0059c36cd20ab405f55cf0867e28.

* Add Runtime type

* Update to scale-info 0.12

* Update to scale-info 1.0

* Update frame-metadata to version 14.0.0

* Patch finality-grandpa until release available

* Fix metadata tests

* Fix metadata tests

* Fmt

* Remove patched finality-grandpa

* Fix tests, use scale_info imports

* Fix pallet tests

* Add BlockNumber TypeInfo bound

* ui test fix

* Cargo.lock

* Remove pallet metadata

* Cargo.lock

* Add missing scale-info dependency

* Remove pallet event metadata

* Fix error

* Fix collective errors

* Semicolol

* Fmt

* Remove another metadata attribute

* Add new variant to custom digest TypeInfo

* Fmt

* Cargo.lock from master

* Remove comma lol

* Fix example call error

* Fix example call error properly

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

substrate/frame/election-provider-multi-phase/src/lib.rs

@@ -217,6 +217,7 @@ use frame_support::{
 	weights::{DispatchClass, Weight},
 };
 use frame_system::{ensure_none, offchain::SendTransactionTypes};
+use scale_info::TypeInfo;
 use sp_arithmetic::{
 	traits::{CheckedAdd, Saturating, Zero},
 	UpperOf,
@@ -311,7 +312,7 @@ impl<T: Config> ElectionProvider<T::AccountId, T::BlockNumber> for NoFallback<T>
 }
 
 /// Current phase of the pallet.
-#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug)]
+#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug, TypeInfo)]
 pub enum Phase<Bn> {
 	/// Nothing, the election is not happening.
 	Off,
@@ -373,7 +374,7 @@ impl<Bn: PartialEq + Eq> Phase<Bn> {
 }
 
 /// The type of `Computation` that provided this election data.
-#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug)]
+#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug, TypeInfo)]
 pub enum ElectionCompute {
 	/// Election was computed on-chain.
 	OnChain,
@@ -399,7 +400,7 @@ impl Default for ElectionCompute {
 ///
 /// Such a solution should never become effective in anyway before being checked by the
 /// `Pallet::feasibility_check`.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, PartialOrd, Ord)]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, PartialOrd, Ord, TypeInfo)]
 pub struct RawSolution<S> {
 	/// the solution itself.
 	pub solution: S,
@@ -417,7 +418,7 @@ impl<C: Default> Default for RawSolution<C> {
 }
 
 /// A checked solution, ready to be enacted.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, Default)]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, Default, TypeInfo)]
 pub struct ReadySolution<A> {
 	/// The final supports of the solution.
 	///
@@ -436,7 +437,7 @@ pub struct ReadySolution<A> {
 /// [`ElectionDataProvider`] and are kept around until the round is finished.
 ///
 /// These are stored together because they are often accessed together.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, Default)]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug, Default, TypeInfo)]
 pub struct RoundSnapshot<A> {
 	/// All of the voters.
 	pub voters: Vec<(A, VoteWeight, Vec<A>)>,
@@ -449,7 +450,7 @@ pub struct RoundSnapshot<A> {
 /// This is stored automatically on-chain, and it contains the **size of the entire snapshot**.
 /// This is also used in dispatchables as weight witness data and should **only contain the size of
 /// the presented solution**, not the entire snapshot.
-#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug, Default)]
+#[derive(PartialEq, Eq, Clone, Copy, Encode, Decode, Debug, Default, TypeInfo)]
 pub struct SolutionOrSnapshotSize {
 	/// The length of voters.
 	#[codec(compact)]
@@ -643,7 +644,8 @@ pub mod pallet {
 			+ Clone
 			+ sp_std::fmt::Debug
 			+ Ord
-			+ NposSolution;
+			+ NposSolution
+			+ TypeInfo;
 
 		/// Configuration for the fallback
 		type Fallback: ElectionProvider<
@@ -949,7 +951,8 @@ pub mod pallet {
 			// create the submission
 			let deposit = Self::deposit_for(&raw_solution, size);
 			let reward = {
-				let call = Call::submit(raw_solution.clone(), num_signed_submissions);
+				let call =
+					Call::submit { raw_solution: raw_solution.clone(), num_signed_submissions };
 				let call_fee = T::EstimateCallFee::estimate_call_fee(&call, None.into());
 				T::SignedRewardBase::get().saturating_add(call_fee)
 			};
@@ -985,10 +988,6 @@ pub mod pallet {
 	}
 
 	#[pallet::event]
-	#[pallet::metadata(
-		<T as frame_system::Config>::AccountId = "AccountId",
-		BalanceOf<T> = "Balance"
-	)]
 	#[pallet::generate_deposit(pub(super) fn deposit_event)]
 	pub enum Event<T: Config> {
 		/// A solution was stored with the given compute.
@@ -1042,14 +1041,14 @@ pub mod pallet {
 	impl<T: Config> ValidateUnsigned for Pallet<T> {
 		type Call = Call<T>;
 		fn validate_unsigned(source: TransactionSource, call: &Self::Call) -> TransactionValidity {
-			if let Call::submit_unsigned(solution, _) = call {
+			if let Call::submit_unsigned { raw_solution, .. } = call {
 				// Discard solution not coming from the local OCW.
 				match source {
 					TransactionSource::Local | TransactionSource::InBlock => { /* allowed */ },
 					_ => return InvalidTransaction::Call.into(),
 				}
 
-				let _ = Self::unsigned_pre_dispatch_checks(solution)
+				let _ = Self::unsigned_pre_dispatch_checks(raw_solution)
 					.map_err(|err| {
 						log!(debug, "unsigned transaction validation failed due to {:?}", err);
 						err
@@ -1060,11 +1059,11 @@ pub mod pallet {
 					// The higher the score[0], the better a solution is.
 					.priority(
 						T::MinerTxPriority::get()
-							.saturating_add(solution.score[0].saturated_into()),
+							.saturating_add(raw_solution.score[0].saturated_into()),
 					)
 					// Used to deduplicate unsigned solutions: each validator should produce one
 					// solution per round at most, and solutions are not propagate.
-					.and_provides(solution.round)
+					.and_provides(raw_solution.round)
 					// Transaction should stay in the pool for the duration of the unsigned phase.
 					.longevity(T::UnsignedPhase::get().saturated_into::<u64>())
 					// We don't propagate this. This can never be validated at a remote node.
@@ -1076,8 +1075,8 @@ pub mod pallet {
 		}
 
 		fn pre_dispatch(call: &Self::Call) -> Result<(), TransactionValidityError> {
-			if let Call::submit_unsigned(solution, _) = call {
-				Self::unsigned_pre_dispatch_checks(solution)
+			if let Call::submit_unsigned { raw_solution, .. } = call {
+				Self::unsigned_pre_dispatch_checks(raw_solution)
 					.map_err(dispatch_error_to_invalid)
 					.map_err(Into::into)
 			} else {