Update the Contracts API to use `WeightMeter`, as it simplifies the code
and makes it easier to reason about, rather than taking a mutable weight
or returning a tuple with the weight consumed
---------
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
* Change copyright year to 2023 from 2022
* Fix incorrect update of copyright year
* Remove years from copy right header
* Fix remaining files
* Fix typo in a header and remove update-copyright.sh
* Avoid reading contract code when it is supplied in the extrinsic
* Remove custom proof size injection from schedule
* Set benchmarks pov_mode to Measure
* Reduce overestimation of code size on re-instrument
* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_contracts
* Do not override proof size from benchmark
* Do not charge proof size for basic block
* Incrase gas limit for tests
* Fix deletion queue to also use `proof_size`
* Fix tests
* Update frame/contracts/src/schedule.rs
Co-authored-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
* Fix wrong schedule macro invocations
* Remove stale docs
* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_contracts
* Handle zero components
* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_contracts
* Fix instruction weight
---------
Co-authored-by: command-bot <>
Co-authored-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
* Introduce preimages module in traits
* Multisize Preimages
* Len not actually necessary
* Tweaks to the preimage API
* Fixes
* Get Scheduler building with new API
* Scheduler tests pass
* Bounded Scheduler 🎉
* Use Agenda holes and introduce IncompleteSince to avoid need to reschedule
* Tests pass with new weight system
* New benchmarks
* Add missing file
* Drop preimage when permenantly overeight
* Drop preimage when permenantly overeight
* Referenda uses latest preimage API
* Testing ok
* Adding tests
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* fmt
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add preimage migration
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Docs
* Remove dbg
* Refactor Democracy
* Refactor Democracy
* Add final MEL
* Remove silly maps
* Fixes
* Minor refactor
* Formatting
* Fixes
* Fixes
* Fixes
* Update frame/preimage/src/lib.rs
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
* Add migrations to Democracy
* WIP
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Resolve conflicts
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Revert "Resolve conflicts"
This reverts commit 734d66d69e54553471ffa54fa52e3e304dc8f106.
* Undo wrong resolves...
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* WIP
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Make compile
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* massage clippy
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* More clippy
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* clippy annoyance
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* clippy annoyance
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix benchmarks
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* add missing file
* Test <Preimage as QueryPreimage>
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* More tests
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Clippy harassment
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add test
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* clippy
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fixup tests
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Remove old stuff
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* fmt
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Test <Scheduler as Anon> trait functions
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Update pallet-ui tests
Why is this needed? Should not be the case unless master is broken...
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* More scheduler trait test
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* More tests
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Apply review suggestion
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Beauty fixes
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add Scheduler test migration_v3_to_v4_works
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Merge fixup
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Keep referenda benchmarks instantiatable
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Update weights
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Use new scheduler weight functions
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Use new democracy weight functions
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Use weight compare functions
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Update pallet-ui tests
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* More renaming…
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* More renaming…
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add comment
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Implement OnRuntimeUpgrade for scheduler::v3_to_v4 migration
Put the migration into a proper `MigrateToV4` struct and implement
the OnRuntimeUpgrade hooks for it. Also move the test to use that
instead.
This should make it easier for adding it to Polkadot.
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Clippy
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Handle undecodable Agendas
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Remove trash
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix test
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Use new OnRuntimeUpgrade functions
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* fix test
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix BoundedSlice::truncate_from
Co-authored-by: jakoblell
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix pre_upgrade hook return values
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add more error logging
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Find too large preimages in the pre_upgrade hook
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Test that too large Calls in agendas are ignored
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Use new OnRuntimeUpgrade hooks
Why did the CI not catch this?!
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* works fine - just more logs
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix staking migration
Causing issues on Kusama...
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix UI tests
No idea why this is needed. This is actually undoing an earlier change.
Maybe the CI has different rustc versions!?
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Remove multisig's Calls (#12072)
* Remove multisig's Calls
* Multisig: Fix tests and re-introduce reserve logic (#12241)
* Fix tests and re-introduce reserve logic
* fix benches
* add todo
* remove irrelevant bench
* [Feature] Add a migration that drains and refunds stored calls (#12313)
* [Feature] Add a migration that drains and refunds stored calls
* migration fixes
* fixes
* address review comments
* consume the whole block weight
* fix assertions
* license header
* fix interface
Co-authored-by: parity-processbot <>
Co-authored-by: parity-processbot <>
Co-authored-by: Roman Useinov <roman.useinov@gmail.com>
* Fix test
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Fix multisig benchmarks
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* ".git/.scripts/bench-bot.sh" pallet dev pallet_democracy
* ".git/.scripts/bench-bot.sh" pallet dev pallet_scheduler
* ".git/.scripts/bench-bot.sh" pallet dev pallet_preimage
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: parity-processbot <>
Co-authored-by: Roman Useinov <roman.useinov@gmail.com>
* update api
* update
* remove unused
* remove `one` api
* fix unused
* fmt
* add saturating accrue
* remove `Weight::new()`
* use some macros
* div makes no sense
* Update weight_v2.rs
* missed some
* more patch
* fixes
* more fixes
* more fix
* more fix
* remove RefTimeWeight
* Update frame/contracts/src/storage.rs
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
* not needed
* Fixes
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
* update api
* update
* remove unused
* remove `one` api
* fix unused
* fmt
* add saturating accrue
* remove `Weight::new()`
* use some macros
* div makes no sense
* Update weight_v2.rs
* missed some
* more patch
* fixes
* more fixes
* more fix
* more fix
* Update frame/support/src/weights/weight_v2.rs
* not needed
* fix weight file
* save
* builds and old tests pass
save: temporary value dropped while borrowed
save: finally builds
test updated but still fails
* type names enhanced
* VarSizedKey bounded to new Config param
* improved wasm runtime updated funcs
* unstable-interface tests fixed
* benchmarks fixed
* Apply suggestions from code review
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
* fixes on feedback
* fixes on feedback applied + make it build
* benchmarks build but fail (old)
* "Original code too large"
* seal_clear_storage bench fixed (code size workaround hack removal tbd)
* bench_seal_clear_storage pass
* bench_seal_take_storage ... ok
* added new seal_set_storage + updated benchmarks
* added new seal_get_storage + updated benchmarks
* added new seal_contains_storage + updated benchmarks
* added tests for _transparent exec functions
* wasm test for clear_storage
* wasm test for take_storage
* wasm test for new set_storage
* wasm test for new get_storage
* wasm test for new contains_storage
* CI fix
* ci fix
* ci fix
* ci fix
* cargo run --quiet --profile=production --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark pallet --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* fixes according to the review feedback
* tests & benchmarks fixed
* cargo run --quiet --profile=production --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark pallet --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* refactoring
* fix to runtime api
* ci fix
* ctx.get_storage() factored out
* ctx.contains_storage() factored out
* number of batches reduced for transparent hashing storage benchmarks
* contracts RPC & pallet::get_storage to use transparent hashing
* node and rpc updated to use get_storage with VarSizedKey
* refactored (more concize)
* refactored contains_storage (DRYed)
* refactored contains_storage (DRYed)
* fix rpc
* fmt fix
* more fixes in rpc
* rollback `Pallet:get_storage` to Vec<u8> and rpc and node parts related to it
* added `KeyDecodingFailed` error
* Revert weird "fmt fix"
This reverts commit c582cfff4b5cb2c9929fd5e3b45519bb24aeb657.
* node-executor basic test update
* fix node-executor basic test
* benchmarks fix
* more benchmarks fix
* FixedSizedKey is hidden from pub, VarSizedKey is exported as StorageKey
* ci fix
* set_storage benchmark fix
* ci fix
* ci fix
* comments improved
* new error code to rpc: KEY_DECODING_FAILED
* Put `rusty-cachier` before PR merge into `master` for `cargo-check-benches` job
* cargo run --quiet --profile=production --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark pallet --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* minor optimization
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
Co-authored-by: Parity Bot <admin@parity.io>
Co-authored-by: Vladimir Istyufeev <vladimir@parity.io>
Co-authored-by: command-bot <>
* on_initialize -> on_idle
* use remaining_weight info
* no weight_limit for on_idle
* call on_idle in tests
* attempt to fix tests
* run on_initiaize when queue full
* add on_idle to weight info
* add on_idle weight info to on_idle hook
* add basic test for on_initialize with full queue
* disbale check for all keys gone in full queue, full block test
* queue_deth as usize, add comment
* comment was removed by accident
* Update frame/contracts/src/lib.rs
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
* cargo +nightly fmt
* update lazy_removal_does_no_run_on_full_queue_and_full_block
* remove changes in weights.rs
* weights on_idle -> on_process_deletion_queue_batch
* use block number for on_idle
* use BlockNumber for on_initialize
* cargo run --quiet --profile=production --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark pallet --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* Update frame/contracts/src/lib.rs
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
* remove outcommented code
* add check that queue still full for test
* cargo fmt
* cargo +nightly fmt
* Update frame/contracts/src/benchmarking/mod.rs
Co-authored-by: Alexander Gryaznov <hi@agryaznov.com>
* fix weights.rs
* add lazy_removal_does_no_run_on_low_remaining_weight test
* Apply suggestions from code review
Co-authored-by: Alexander Gryaznov <hi@agryaznov.com>
Co-authored-by: Alexander Theißen <alex.theissen@me.com>
Co-authored-by: Parity Bot <admin@parity.io>
Co-authored-by: Alexander Gryaznov <hi@agryaznov.com>
* Frame no longer needs to be mutable (refactoring artifact)
* Remove Contract/Tombstone deposit
* Add StorageMeter
* cargo fmt
* Fix weight annotation
* cargo run --quiet --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* Simplify keep check for contract accounts
- Make sure that the "base deposit" for each contract >= ed
- Remove now obsolete checks when sneding away free balance
* Remove unused imports and functions
* Rename storage_limit to storage_deposit_limit
* cargo fmt
* Fix typo
Co-authored-by: Michael Müller <michi@parity.io>
* Finish up rename of storage_limit
* Fix rpc tests
* Make use of `StorageDepositLimitTooHigh`
* Add tests and fix bugs discovered by tests
* Add storage migration
* Don't use u128 in RPC
* Fix weight of migration
* Rename `endowment` to `value`
* Fix bug where contract couldn't get funded by a storage deposit
- Make sure that contract gets funded from deposits before value is transferred
- Don't reserve value at origin because otherwise funding isn't possible
- Just transfer free balance and reserve it after the transfer
- When refunding make sure that this refund can't dust the contract
- Can only happen after a runtime upgrade where costs where upped
- Add more tests
* Apply suggestions from code review
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Remove unused `fn storage_meter`
* Fix copy pasta doc error
* Import `MaxEncodeLen` from codec
* Beautify RPC trait bounds
* Add re-instrument behaviour to dispatchable doc
* Make sure a account won't be destroyed a refund after a slash
* Apply suggestions from code review
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Update `Storage::write` docs
* Improve doc
* Remove superflous conditional
* Typos
* Remove superflous clone (refactoring artifact)
* Apply suggestions from code review
Co-authored-by: Andrew Jones <ascjones@gmail.com>
Co-authored-by: Parity Bot <admin@parity.io>
Co-authored-by: Michael Müller <michi@parity.io>
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Run cargo fmt on the whole code base
* Second run
* Add CI check
* Fix compilation
* More unnecessary braces
* Handle weights
* Use --all
* Use correct attributes...
* Fix UI tests
* AHHHHHHHHH
* 🤦
* Docs
* Fix compilation
* 🤷
* Please stop
* 🤦 x 2
* More
* make rustfmt.toml consistent with polkadot
Co-authored-by: André Silva <andrerfosilva@gmail.com>
* Fix output of wrongly outputted error
The "Tombstoned a contract that is below the subsistence threshold: {:?}" was
triggered when too few balance was provided. It was a false alarm.
* Fix return of wrong code_len
* Split up `NotCallable` into more fine grained errors
* Fix typos in docs
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
* RentNotPayed -> RentNotPaid
* Fix typo: payed -> paid
It is OK to change the in-storage field name because:
1. The SCALE encoding is not based on names only on position.
2. The struct is not public (only to the crate).
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
* contracts: Add default implementation for Executable::occupied_storage()
* contracts: Refactor the exec module
* Let runtime specify the backing type of the call stack
This removes the need for a runtime check of the specified
`MaxDepth`. We can now garantuee that we don't need to
allocate when a new call frame is pushed.
* Fix doc typo
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* Review nits
* Fix defect in contract info caching behaviour
* Add more docs
* Fix wording and typos
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
Co-authored-by: Parity Benchmarking Bot <admin@parity.io>
* Use 'Pallet' struct in construct_runtime.
* Fix genesis and metadata macro.
* Fix 'Pallet' type alias.
* Replace 'Module' with 'Pallet' for all construct_runtime use cases.
* Replace more deprecated 'Module' struct.
* Bring back AllModules and AllPalletsWithSystem type, but deprecate them.
* Replace deprecated 'Module' struct from merge master.
* Minor fix.
* Fix UI tests.
* Revert UI override in derive_no_bound.
* Fix more deprecated 'Module' use from master branch.
* Fix more deprecated 'Module' use from master branch.
* Init `RuntimeLogger` automatically for each runtime api call
This pr change the runtime api in such a way to always and automatically
enable the `RuntimeLogger`. This enables the user to use `log` or
`tracing` from inside the runtime to create log messages. As logging
introduces some extra code and especially increases the size of the wasm
blob. It is advised to disable all logging completely with
`sp-api/disable-logging` when doing the wasm builds for the on-chain
wasm runtime.
Besides these changes, the pr also brings most of the logging found in
frame to the same format "runtime::*".
* Update frame/im-online/src/lib.rs
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
* Update test-utils/runtime/Cargo.toml
* Fix test
* Don't use tracing in the runtime, as we don't support it :D
* Fixes
Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
* contracts: Update README
* contracts: Add CHANGELOG.md
* contracts: Bump version to v3.0.0 and allow publish
* Typos
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Improve wording in the changelog
* contracts: Add reserved field to ContractInfoOf for future proofing
* also bump frame-benchmarking
* update lockfile
Co-authored-by: Andrew Jones <ascjones@gmail.com>
Co-authored-by: Benjamin Kampmann <ben@parity.io>
* Initial piping of returning amount of keys killed
* One more test for `None` limit
* forgot to update
* fix return value
* use version 3
* Update to return `KillOutcome`
* Update name to KillChildStorageResult
* contracts: Convert to framev2
* Reduce the API surface of the crate
* Remove unused import
* Merge import block
* Use pallet::metadata to reduce metadata diff
* Remove the explicit "Null" from AccountCounter
* contracts: Implement refcounting for wasm code
* contracts: Charge rent for code storage
* contracts: Fix dispatchables erroneously refunding base costs
* Fixed typos in comments.
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Remove awkward empty line
* Fix more typos in docs
* Fix typos in docs
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Split up complicated expression
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* review: Remove unused return value
* Fix typos
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* review: Fix refcount being reset to one on re-instrumentation
* Document evictable_code parameter
* Make Executable::execute consume and store itself
* Added comments about stale values
* Disregard struct size in occupied_storage()
Co-authored-by: Andrew Jones <ascjones@gmail.com>
* Add rent_payed field to the contract info
* Don't pay out more as reward as was spent in rent
* Make successful evictions free
* Add tests to check that surcharge reward is capped by rent payed
* review: Fixed docs
* Add `len` function that can return the length of a storage item efficiently
* Make use of the new len function in contracts
* Fix benchmarks
* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_contracts --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/contracts/src/weights.rs --template=./.maintain/frame-weight-template.hbs
* Remove unused imports
Co-authored-by: Parity Benchmarking Bot <admin@parity.io>
PG Herveou