Weight annotation. (#3157)

* Make extrinsics extensible.

Also Remove old extrinsic types.

* Rest of mockup. Add tips.

* Fix some build issues

* Runtiem builds :)

* Substrate builds.

* Fix a doc test

* Compact encoding

* Extract out the era logic into an extension

* Weight Check signed extension. (#3115)

* Weight signed extension.

* Revert a bit + test for check era.

* Update Cargo.toml

* Update node/cli/src/factory_impl.rs

* Update node/executor/src/lib.rs

* Update node/executor/src/lib.rs

* Don't use len for weight - use data.

* Operational Transaction; second attempt (#3138)

* working poc added.

* some fixes.

* Update doc.

* Fix all tests + final logic.

* more refactoring.

* nits.

* System block limit in bytes.

* Silent the storage macro warnings.

* More logic more tests.

* Fix import.

* Refactor names.

* Fix build.

* Update srml/balances/src/lib.rs

* Final refactor.

* Bump transaction version

* Fix weight mult test.

* Fix more tests and improve doc.

* Bump.

* Make some tests work again.

* Fix subkey.

* Remove todos + bump.

* First draft of annotating weights.

* Refactor weight to u64.

* More refactoring and tests.

* New convert for weight to fee

* more tests.

* remove merge redundancy.

* Fix system test.

* Bring back subkey stuff.

* a few stress tests.

* fix some of the grumbles.

* Final nits.

* Update srml/system/src/lib.rs

Co-Authored-By: DemiMarie-parity <48690212+DemiMarie-parity@users.noreply.github.com>

* Scale weights by 1000.

* Bump.

* Fix decl_storage test.

substrate/srml/session/src/lib.rs

@@ -122,6 +122,7 @@
 use rstd::{prelude::*, marker::PhantomData, ops::{Sub, Rem}};
 use parity_codec::Decode;
 use primitives::KeyTypeId;
+use primitives::weights::SimpleDispatchInfo;
 use primitives::traits::{Convert, Zero, Member, OpaqueKeys, TypedKey};
 use srml_support::{
 	dispatch::Result, ConsensusEngineId, StorageValue, StorageDoubleMap, for_each_tuple,
@@ -378,6 +379,7 @@ decl_module! {
 		/// - O(log n) in number of accounts.
 		/// - One extra DB entry.
 		/// # </weight>
+		#[weight = SimpleDispatchInfo::FixedNormal(150_000)]
 		fn set_keys(origin, keys: T::Keys, proof: Vec<u8>) -> Result {
 			let who = ensure_signed(origin)?;
 

substrate/srml/session/src/mock.rs

@@ -21,6 +21,7 @@ use std::cell::RefCell;
 use srml_support::{impl_outer_origin, parameter_types};
 use substrate_primitives::H256;
 use primitives::{
+	Perbill,
 	traits::{BlakeTwo256, IdentityLookup, ConvertInto},
 	testing::{Header, UintAuthorityId}
 };
@@ -116,6 +117,7 @@ parameter_types! {
 	pub const MaximumBlockWeight: u32 = 1024;
 	pub const MaximumBlockLength: u32 = 2 * 1024;
 	pub const MinimumPeriod: u64 = 5;
+	pub const AvailableBlockRatio: Perbill = Perbill::one();
 }
 impl system::Trait for Test {
 	type Origin = Origin;
@@ -130,6 +132,7 @@ impl system::Trait for Test {
 	type Event = ();
 	type BlockHashCount = BlockHashCount;
 	type MaximumBlockWeight = MaximumBlockWeight;
+	type AvailableBlockRatio = AvailableBlockRatio;
 	type MaximumBlockLength = MaximumBlockLength;
 }
 impl timestamp::Trait for Test {