Original PR https://github.com/paritytech/substrate/pull/14655
---
Partial https://github.com/paritytech/polkadot-sdk/issues/225
- [x] Adds conformance tests for Unbalanced
- [x] Adds conformance tests for Balanced
- Several minor fixes to fungible default implementations and the
Balances pallet
- [x] `Unbalanced::decrease_balance` can reap account when
`Preservation` is `Preserve`
- [x] `Balanced::pair` can return pairs of imbalances which do not
cancel each other out
- [x] Balances pallet `active_issuance` 'underflow'
- [x] Refactors the conformance test file structure to match the
fungible file structure: tests for traits in regular.rs go into a test
file named regular.rs, tests for traits in freezes.rs go into a test
file named freezes.rs, etc.
- [x] Improve doc comments
- [x] Simplify macros
## Fixes
### `Unbalanced::decrease_balance` can reap account when called with
`Preservation::Preserve`
There is a potential issue in the default implementation of
`Unbalanced::decrease_balance`. The implementation can delete an account
even when it is called with `preservation: Preservation::Preserve`. This
seems to contradict the documentation of `Preservation::Preserve`:
```rust
/// The account may not be killed and our provider reference must remain (in the context of
/// tokens, this means that the account may not be dusted).
Preserve,
```
I updated `Unbalanced::decrease_balance` to return
`Err(TokenError::BelowMinimum)` when a withdrawal would cause the
account to be reaped and `preservation: Preservation::Preserve`.
- [ ] TODO Confirm with @gavofyork that this is correct behavior
Test for this behavior:
https://github.com/paritytech/polkadot-sdk/blob/e5c876dd6b59e2b7dbacaa4538cb42c802db3730/substrate/frame/support/src/traits/tokens/fungible/conformance_tests/regular.rs#L912-L937
### `Balanced::pair` returning non-canceling pairs
`Balanced::pair` is supposed to create a pair of imbalances that cancel
each other out. However this is not the case when the method is called
with an amount greater than the total supply.
In the existing default implementation, `Balanced::pair` creates a pair
by first rescinding the balance, creating `Debt`, and then issuing the
balance, creating `Credit`.
When creating `Debt`, if the amount to create exceeds the
`total_supply`, `total_supply` units of `Debt` are created *instead* of
`amount` units of `Debt`. This can lead to non-canceling amount of
`Credit` and `Debt` being created.
To address this, I create the credit and debt directly in the method
instead of calling `issue` and `rescind`.
Test for this behavior:
https://github.com/paritytech/polkadot-sdk/blob/e5c876dd6b59e2b7dbacaa4538cb42c802db3730/substrate/frame/support/src/traits/tokens/fungible/conformance_tests/regular.rs#L1323-L1346
### `Balances` pallet `active_issuance` 'underflow'
This PR resolves an issue in the `Balances` pallet that can lead to odd
behavior of `active_issuance`.
Currently, the Balances pallet doesn't check if `InactiveIssuance`
remains less than or equal to `TotalIssuance` when supply is
deactivated. This allows `InactiveIssuance` to be greater than
`TotalIssuance`, which can result in unexpected behavior from the
perspective of the fungible API.
`active_issuance` is derived from
`TotalIssuance.saturating_sub(InactiveIssuance)`.
If an `amount` is deactivated that causes `InactiveIssuance` to become
greater TotalIssuance, `active_issuance` will return 0. However once in
that state, reactivating an amount will not increase `active_issuance`
by the reactivated `amount` as expected.
Consider this test where the last assertion would fail due to this
issue:
https://github.com/paritytech/polkadot-sdk/blob/e5c876dd6b59e2b7dbacaa4538cb42c802db3730/substrate/frame/support/src/traits/tokens/fungible/conformance_tests/regular.rs#L1036-L1071
To address this, I've modified the `deactivate` function to ensure
`InactiveIssuance` never surpasses `TotalIssuance`.
---------
Co-authored-by: Muharem <ismailov.m.h@gmail.com>
We currently use a bit of a hack in `.cargo/config` to make sure that
clippy isn't too annoying by specifying the list of lints.
There is now a stable way to define lints for a workspace. The only down
side is that every crate seems to have to opt into this so there's a
*few* files modified in this PR.
Dependencies:
- [x] PR that upgrades CI to use rust 1.74 is merged.
---------
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Branislav Kontur <bkontur@gmail.com>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
Using taplo, fixes all our broken and inconsistent toml formatting and
adds CI to keep them tidy.
If people want we can customise the format rules as described here
https://taplo.tamasfe.dev/configuration/formatter-options.html
@ggwpez, I suggest zepter is used only for checking features are
propagated, and leave formatting for taplo to avoid duplicate work and
conflicts.
TODO
- [x] Use `exclude = [...]` syntax in taplo file to ignore zombienet
tests instead of deleting the dir
---------
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: Bastian Köcher <git@kchr.de>
Changes:
- Change the fungible(s) logic to treat a self-transfer as No-OP (as
long as all pre-checks pass).
Note that the self-transfer case will not emit an event since no state
was changed.
---------
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
closes https://github.com/paritytech/polkadot-sdk/issues/1882
## Breaking Changes
This PR introduces a new item to `pallet_balances::Config`:
```diff
trait Config {
++ type RuntimeFreezeReasons;
}
```
This value is only used to check it against `type MaxFreeze`. A similar
check has been added for `MaxHolds` against `RuntimeHoldReasons`, which
is already given to `pallet_balances`.
In all contexts, you should pass the real `RuntimeFreezeReasons`
generated by `construct_runtime` to `type RuntimeFreezeReasons`. Passing
`()` would also work, but it would imply that the runtime uses no
freezes at all.
---------
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
The `xcm` crate was renamed to `staging-xcm` to be able to publish it to
crates.io as someone as squatted `xcm`. The problem with this rename is
that the `TypeInfo` includes the crate name which ultimately lands in
the metadata. The metadata is consumed by downstream users like
`polkadot-js` or people building on top of `polkadot-js`. These people
are using the entire `path` to find the type in the type registry. Thus,
their code would break as the type path would now be [`staging_xcm`,
`VersionedXcm`] instead of [`xcm`, `VersionedXcm`]. This pull request
fixes this by renaming the path segment `staging_xcm` to `xcm`.
This requires: https://github.com/paritytech/scale-info/pull/197
---------
Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com>
Fixes https://github.com/paritytech/polkadot-sdk/issues/1839
Currently, `composite_enum`s do not support pallet instances. This PR
allows the following:
```rust
#[pallet::composite_enum]
pub enum HoldReason<I: 'static = ()> {
SomeHoldReason
}
```
### Todo
- [x] UI Test
Moving a few pallets to the latest and greatest `derive_impl` to give it
a try.
Part of #171
---------
Co-authored-by: Adrian Catangiu <adrian@parity.io>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
* Fix std, runtime-benchmarks and try-runtime features
zepter lint propagate-feature --feature try-runtime --left-side-feature-missing=ignore --workspace --fix --feature-enables-dep="try-runtime:frame-try-runtime"
zepter lint propagate-feature --feature runtime-benchmarks --left-side-feature-missing=ignore --workspace --fix --feature-enables-dep="runtime-benchmarks:frame-benchmarking"
zepter lint propagate-feature --feature std --left-side-feature-missing=ignore --workspace --fix
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add propagate feature CI check
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Test CI by adding an error
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Use --locked
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Add help msg
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Revert "Test CI by adding an error"
This reverts commit cf4ff6cc0632269b0a109e547686e5e3314b02de.
* Test CI by adding an error
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* No newline in help msg
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Revert "Test CI by adding an error"
This reverts commit 5daa06ada8e01f5bebafb9d1c76804dd79bc1006.
* Test CI by adding an error
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Revert "Test CI by adding an error"
This reverts commit ca15de5729507a564f140a10ec2e87b19516ec4c.
* Fix msg
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Revert back to master
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Re-do with Zepter v0.7.4
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Update Zepter to 0.7.4
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Disable rococo try-runtime check
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Apply suggestions from code review
Co-authored-by: Bastian Köcher <git@kchr.de>
* More review fixes
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
---------
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Bastian Köcher <git@kchr.de>
* replace Index by Nonce
* replace Index by Nonce
* replace Index by Nonce
* replace Index by Nonce
* replace Index by Nonce
* wip
* remove index in lieu of nonce
* wip
* remove accountnonce in lieu of nonce
* add minor improvement
* rebase and merge conflicts
* Benchmarking spellcheck fix
Put everything that could cause spellcheck issues into backticks.
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Also in templates
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet-balances
---------
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: command-bot <>
* HoldReason: Improve usage
`HoldReason` was switched recently to use the `composite_enum` attribute that will merge the enums
from all pallets in the runtime to `RuntimeHoldReason`. `pallet-nis` was still requiring that the
variant was passed as constant to call `hold`. The proper implementation is to use the `HoldReason`
from inside the pallet directly when calling `hold`. This is done by adding a `RuntimeHoldReason` as
type to the `Config` trait and requiring that `Currency` is using the same reason. Besides that the
pr changes the name `HoldIdentifier` in `pallet_balances::Config` to `RuntimeHoldReason`.
* Update frame/nis/src/lib.rs
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Review comment
* Fixes
---------
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* frame: Default for GenesisConfig in no_std
`Default` for `GenesisConfig` will be required for no_std in no native
runtime world. It must be possible to instantiate default GenesisConfig
for pallets and runtime.
* ".git/.scripts/commands/fmt/fmt.sh"
* hash69 in no_std reverted
* derive(DefaultNoBound) for GenesisConfig used when possible
* treasury: derive(Default)
* Cargo.lock update
* genesis_config: compiler error improved
When std feature is not enabled for pallet, the GenesisConfig will be
defined, but serde::{Serialize,Deserialize} traits will not be
implemented.
The compiler error indicates the reason of latter errors.
This is temporary and serde traits will be enabled with together with
`serde` support in frame.
---------
Co-authored-by: command-bot <>
* Fix: Incorrect implementation of can_reserve check
* Fix: Incorrect migration of consumer counting for existing accounts with frozen amounts
* Fix: Inconsistent implementation between assets can_deposit and new_account
* Fixes
* Fixes
* Another fix
* Update tests.rs
* Update fungible_tests.rs
* Use `can_accrue_consumers` in the body of `can_inc_consumer`
---------
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: parity-processbot <>
Liam Aharon