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  1. Jan 24, 2024
    • Just van Stam's avatar
      Transactional processing for XCM (#1222) · 50eb12cf
      Just van Stam authored 
      

Moved from: https://github.com/paritytech/polkadot/pull/6951

closes https://github.com/paritytech/polkadot-sdk/issues/490

- [x] update cumulus

--- 
This PR introduces transactional processing of certain xcm instructions.
For the list of instructions checkout
https://github.com/paritytech/polkadot-sdk/issues/490. The transactional
processing is implemented as an xcm-executor config item. The two
implementations in this PR are `FrameTransactionalProcessor` and `()`.
The `()` implementation does no transactional processing. Each
implementation of the `ProcessTransaction` trait has an
`IS_TRANSACTIONAL` const that tells the XCVM if transactional processing
is actually implemented. If Transactional processing is implemented,
changes to touched registers should also be rolled back to prevent
inconsistencies.


Note for reviewers:
Check out the following safety assumption:
https://github.com/paritytech/polkadot-sdk/pull/1222/files#diff-4effad7d8c1c9de19fd27e18661cbf2128c8718f3b2420a27d2f816e0749ea53R30

---------

Co-authored-by: default avatarKeith Yeung <[email protected]>
Co-authored-by: default avatarFrancisco Aguirre <[email protected]>
Co-authored-by: command-bot <>
      50eb12cf
  3. Jan 22, 2024
  5. Jan 18, 2024
  7. Jan 16, 2024
    • Francisco Aguirre's avatar
      XCMv4 (#1230) · 8428f678
      Francisco Aguirre authored 
      

# Note for reviewer

Most changes are just syntax changes necessary for the new version.
Most important files should be the ones under the `xcm` folder.

# Description 

Added XCMv4.

## Removed `Multi` prefix
The following types have been renamed:
- MultiLocation -> Location
- MultiAsset -> Asset
- MultiAssets -> Assets
- InteriorMultiLocation -> InteriorLocation
- MultiAssetFilter -> AssetFilter
- VersionedMultiAsset -> VersionedAsset
- WildMultiAsset -> WildAsset
- VersionedMultiLocation -> VersionedLocation

In order to fix a name conflict, the `Assets` in `xcm-executor` were
renamed to `HoldingAssets`, as they represent assets in holding.

## Removed `Abstract` asset id

It was not being used anywhere and this simplifies the code.

Now assets are just constructed as follows:

```rust
let asset: Asset = (AssetId(Location::new(1, Here)), 100u128).into();
```

No need for specifying `Concrete` anymore.

## Outcome is now a named fields struct

Instead of

```rust
pub enum Outcome {
  Complete(Weight),
  Incomplete(Weight, Error),
  Error(Error),
}
```

we now have

```rust
pub enum Outcome {
  Complete { used: Weight },
  Incomplete { used: Weight, error: Error },
  Error { error: Error },
}
```

## Added Reanchorable trait

Now both locations and assets implement this trait, making it easier to
reanchor both.

## New syntax for building locations and junctions

Now junctions are built using the following methods:

```rust
let location = Location {
    parents: 1,
    interior: [Parachain(1000), PalletInstance(50), GeneralIndex(1984)].into()
};
```

or

```rust
let location = Location::new(1, [Parachain(1000), PalletInstance(50), GeneralIndex(1984)]);
```

And they are matched like so:

```rust
match location.unpack() {
  (1, [Parachain(id)]) => ...
  (0, Here) => ...,
  (1, [_]) => ...,
}
```

This syntax is mandatory in v4, and has been also implemented for v2 and
v3 for easier migration.

This was needed to make all sizes smaller.

# TODO
- [x] Scaffold v4
- [x] Port github.com/paritytech/polkadot/pull/7236
- [x] Remove `Multi` prefix
- [x] Remove `Abstract` asset id

---------

Co-authored-by: command-bot <>
Co-authored-by: default avatarKeith Yeung <[email protected]>
      8428f678
  9. Dec 14, 2023
    • Francisco Aguirre's avatar
      Add FungibleAdapter (#2684) · 10a91f82
      Francisco Aguirre authored 
      In the move from the old `Currency` traits to the new `fungible/s`
family of traits, we already had the `FungiblesAdapter` and
`NonFungiblesAdapter` for multiple fungible and non fungible assets
respectively. However, for handling only one fungible asset, we were
missing a `FungibleAdapter`, and so used the old `CurrencyAdapter`
instead. This PR aims to fill in that gap, and provide the new adapter
for more updated examples.

I marked the old `CurrencyAdapter` as deprecated as part of this PR, and
I'll change it to the new `FungibleAdapter` in a following PR.
The two stages are separated so as to not bloat this PR with some name
fixes in tests.

---------

Co-authored-by: command-bot <>
      10a91f82
  11. Dec 13, 2023
  13. Nov 28, 2023
  15. Nov 13, 2023
    • Adrian Catangiu's avatar
      pallet-xcm: enhance `reserve_transfer_assets` to support remote reserves (#1672) · 18257373
      Adrian Catangiu authored 
      

## Motivation

`pallet-xcm` is the main user-facing interface for XCM functionality,
including assets manipulation functions like `teleportAssets()` and
`reserve_transfer_assets()` calls.

While `teleportAsset()` works both ways, `reserve_transfer_assets()`
works only for sending reserve-based assets to a remote destination and
beneficiary when the reserve is the _local chain_.

## Solution

This PR enhances `pallet_xcm::(limited_)reserve_withdraw_assets` to
support transfers when reserves are other chains.
This will allow complete, **bi-directional** reserve-based asset
transfers user stories using `pallet-xcm`.

Enables following scenarios:
- transferring assets with local reserve (was previously supported iff
asset used as fee also had local reserve - now it works in all cases),
- transferring assets with reserve on destination,
- transferring assets with reserve on remote/third-party chain (iff
assets and fees have same remote reserve),
- transferring assets with reserve different than the reserve of the
asset to be used as fees - meaning can be used to transfer random asset
with local/dest reserve while using DOT for fees on all involved chains,
even if DOT local/dest reserve doesn't match asset reserve,
- transferring assets with any type of local/dest reserve while using
fees which can be teleported between involved chains.

All of the above is done by pallet inner logic without the user having
to specify which scenario/reserves/teleports/etc. The correct scenario
and corresponding XCM programs are identified, and respectively, built
automatically based on runtime configuration of trusted teleporters and
trusted reserves.

#### Current limitations:
- while `fees` and "non-fee" `assets` CAN have different reserves (or
fees CAN be teleported), the remaining "non-fee" `assets` CANNOT, among
themselves, have different reserve locations (this is also implicitly
enforced by `MAX_ASSETS_FOR_TRANSFER=2`, but this can be safely
increased in the future).
- `fees` and "non-fee" `assets` CANNOT have **different remote**
reserves (this could also be supported in the future, but adds even more
complexity while possibly not being worth it - we'll see what the future
holds).

Fixes https://github.com/paritytech/polkadot-sdk/issues/1584
Fixes https://github.com/paritytech/polkadot-sdk/issues/2055

---------

Co-authored-by: default avatarFrancisco Aguirre <[email protected]>
Co-authored-by: default avatarBranislav Kontur <[email protected]>
      18257373
  17. Oct 24, 2023
    • Kian Paimani's avatar
      Ensure correct variant count in `Runtime[Hold/Freeze]Reason` (#1900) · 35eb133b
      Kian Paimani authored 
      

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: default avatarOliver Tale-Yazdi <[email protected]>
Co-authored-by: default avatarOliver Tale-Yazdi <[email protected]>
      35eb133b
  19. Oct 20, 2023
    • Bastian Köcher's avatar
      `xcm`: Change `TypeInfo::path` to not include `staging` (#1948) · f3bf5c1a
      Bastian Köcher authored 
      

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: default avatarFrancisco Aguirre <[email protected]>
      f3bf5c1a
  21. Sep 04, 2023
    • Chevdor's avatar
      Markdown linter (#1309) · a30092ab
      Chevdor authored 
      

* Add markdown linting

- add linter default rules
- adapt rules to current code
- fix the code for linting to pass
- add CI check

fix #1243

* Fix markdown for Substrate
* Fix tooling install
* Fix workflow
* Add documentation
* Remove trailing spaces
* Update .github/.markdownlint.yaml

Co-authored-by: default avatarOliver Tale-Yazdi <[email protected]>
* Fix mangled markdown/lists
* Fix captalization issues on known words
      a30092ab
  23. Aug 31, 2023
    • Bastian Köcher's avatar
      Rename `polkadot-parachain` to `polkadot-parachain-primitives` (#1334) · a33d7922
      Bastian Köcher authored 
      * Rename `polkadot-parachain` to `polkadot-parachain-primitives`

While doing this it also fixes some last `rustdoc` issues and fixes
another Cargo warning related to `pallet-paged-list`.

* Fix compilation

* ".git/.scripts/commands/fmt/fmt.sh"

* Fix XCM docs

---------

Co-authored-by: command-bot <>
      a33d7922
  25. Aug 30, 2023
    • Lulu's avatar
      Rename squatted crates (#1241) · 31c79470
      Lulu authored 
      * Rename squatted crates

This commit adds the staging- prefix to squatted crates so we can go forward and publish them to crates.io.

Using the staging- prefix is a temp fix until we decide on replacement names.
https://forum.parity.io/t/renaming-squated-crates-in-substrate-polkadot-cumulus/1964/6

* Fix test after crate renames

* Update Lockfile
      31c79470
  27. Aug 29, 2023
  29. Aug 28, 2023
  31. Aug 25, 2023
  33. Aug 16, 2023
  35. Aug 04, 2023
  37. Jul 14, 2023
    • juangirini's avatar
      Replace Index for Nonce (#7374) · b95cc76d
      juangirini authored 
      * replace Index for Nonce

* remove extra Nonce

* update lockfile for {"substrate"}

---------

Co-authored-by: parity-processbot <>
      b95cc76d
  39. Jul 13, 2023
    • gupnik's avatar
      Moves `Block` to `frame_system` instead of `construct_runtime` and removes... · 28024144
      gupnik authored 
      
Moves `Block` to `frame_system` instead of `construct_runtime` and removes `Header` and `BlockNumber` (#7431)

* Companion for substrate

* Minor update

* Formatting

* Fixes for cumulus

* Fixes tests in polkadot-runtime-parachains

* Minor update

* Removes unused import

* Fixes tests in polkadot-runtime-common

* Minor fix

* Update roadmap/implementers-guide/src/runtime/configuration.md

Co-authored-by: default avatarordian <[email protected]>

* ".git/.scripts/commands/fmt/fmt.sh"

* update lockfile for {"substrate"}

---------

Co-authored-by: default avatarordian <[email protected]>
Co-authored-by: command-bot <>
      28024144
  41. Jul 12, 2023
  43. Jun 28, 2023
  45. Jun 21, 2023
  47. Jun 05, 2023
    • Keith Yeung's avatar
      Implement AliasOrigin processing in XCVM (#7245) · f2fe05a7
      Keith Yeung authored 
      

* Implement AliasOrigin processing in XCVM

* add builder types and first test

* switch to more general builder types

* clone target for RemovePrefixAccountId32

* change builder types

* change AliasForeignAccountId32 and add test for AliasCase

* add Aliasers type to xcm configs

* add benchmark

* benchmark fix

* add benchmark function for runtimes

* fix alias_origin result types

* fix benchmark test

* add runtime-benchmarks feature in pallet-xcm-benchmarks

* fmt

* remove AliasCase, add test and fmt

* address feedback

* ".git/.scripts/commands/bench/bench.sh" xcm kusama pallet_xcm_benchmarks::generic

* ".git/.scripts/commands/bench/bench.sh" xcm westend pallet_xcm_benchmarks::generic

* ".git/.scripts/commands/bench/bench.sh" xcm rococo pallet_xcm_benchmarks::generic

* address feedback

* lock

* ".git/.scripts/commands/bench/bench.sh" xcm kusama pallet_xcm_benchmarks::generic

* ".git/.scripts/commands/bench/bench.sh" xcm westend pallet_xcm_benchmarks::generic

* ".git/.scripts/commands/bench/bench.sh" xcm rococo pallet_xcm_benchmarks::generic

* change doc

* fmt

---------

Co-authored-by: default avatarJust van Stam <[email protected]>
Co-authored-by: default avatarJust van Stam <[email protected]>
Co-authored-by: command-bot <>
      f2fe05a7
  49. May 24, 2023
    • Bastian Köcher's avatar
      Companion: Substrate#13869 (#7119) · 28de4f13
      Bastian Köcher authored 
      * Companion: Substrate#13869

https://github.com/paritytech/substrate/pull/13869

* update lockfile for {"substrate"}

* ".git/.scripts/commands/fmt/fmt.sh"

---------

Co-authored-by: parity-processbot <>
      28de4f13
  51. May 21, 2023
  53. May 19, 2023
  55. May 05, 2023
    • Muharem Ismailov's avatar
      XCM remote lock consumers (#6947) · 245305be
      Muharem Ismailov authored 
      * xcm remote lock consumers

* update xcm pallet config setups

* fix import

* update xcm pallet config setups

* rename consumers to users

* rename

* rename users to consumers, more docs

* correct doc

---------

Co-authored-by: parity-processbot <>
      245305be
  57. Apr 12, 2023
  59. Apr 08, 2023
  61. Mar 23, 2023
  63. Mar 20, 2023
  65. Mar 13, 2023
    • Vivek Pandya's avatar
      Remove use of Store trait (#6835) · 87db25ce
      Vivek Pandya authored 
      * Remove use of Store trait from runtime directory

* Remove Store trait usage from xcm directory

* Run cargo fmt

* update lockfile for {"substrate"}

---------

Co-authored-by: parity-processbot <>
      87db25ce
  67. Mar 02, 2023
  69. Feb 23, 2023
  71. Feb 03, 2023
  73. Feb 02, 2023