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/primitives/runtime/src/generic/era.rs

@@ -134,6 +134,50 @@ impl Decode for Era {
 	}
 }
 
+/// Add Mortal{N}(u8) variants with the given indices, to describe custom encoding.
+macro_rules! mortal_variants {
+    ($variants:ident, $($index:literal),* ) => {
+		$variants
+		$(
+			.variant(concat!(stringify!(Mortal), stringify!($index)), |v| v
+				.index($index)
+				.fields(scale_info::build::Fields::unnamed().field(|f| f.ty::<u8>()))
+			)
+		)*
+    }
+}
+
+impl scale_info::TypeInfo for Era {
+	type Identity = Self;
+
+	fn type_info() -> scale_info::Type {
+		let variants = scale_info::build::Variants::new().variant("Immortal", |v| v.index(0));
+
+		// this is necessary since the size of the encoded Mortal variant is `u16`, conditional on
+		// the value of the first byte being > 0.
+		let variants = mortal_variants!(
+			variants, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+			22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
+			44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65,
+			66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87,
+			88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107,
+			108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
+			125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141,
+			142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158,
+			159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
+			176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192,
+			193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
+			210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226,
+			227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243,
+			244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
+		);
+
+		scale_info::Type::builder()
+			.path(scale_info::Path::new("Era", module_path!()))
+			.variant(variants)
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	use super::*;