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  1. Mar 13, 2024
    • georgepisaltu's avatar
      Revert "FRAME: Create `TransactionExtension` as a replacement for... · bbd51ce8
      georgepisaltu authored
      
      Revert "FRAME: Create `TransactionExtension` as a replacement for `SignedExtension` (#2280)" (#3665)
      
      This PR reverts #2280 which introduced `TransactionExtension` to replace
      `SignedExtension`.
      
      As a result of the discussion
      [here](https://github.com/paritytech/polkadot-sdk/pull/3623#issuecomment-1986789700),
      the changes will be reverted for now with plans to reintroduce the
      concept in the future.
      
      ---------
      
      Signed-off-by: default avatargeorgepisaltu <[email protected]>
      bbd51ce8
  2. Mar 04, 2024
    • Gavin Wood's avatar
      FRAME: Create `TransactionExtension` as a replacement for `SignedExtension` (#2280) · fd5f9292
      Gavin Wood authored
      
      
      Closes #2160
      
      First part of [Extrinsic
      Horizon](https://github.com/paritytech/polkadot-sdk/issues/2415)
      
      Introduces a new trait `TransactionExtension` to replace
      `SignedExtension`. Introduce the idea of transactions which obey the
      runtime's extensions and have according Extension data (né Extra data)
      yet do not have hard-coded signatures.
      
      Deprecate the terminology of "Unsigned" when used for
      transactions/extrinsics owing to there now being "proper" unsigned
      transactions which obey the extension framework and "old-style" unsigned
      which do not. Instead we have __*General*__ for the former and
      __*Bare*__ for the latter. (Ultimately, the latter will be phased out as
      a type of transaction, and Bare will only be used for Inherents.)
      
      Types of extrinsic are now therefore:
      - Bare (no hardcoded signature, no Extra data; used to be known as
      "Unsigned")
      - Bare transactions (deprecated): Gossiped, validated with
      `ValidateUnsigned` (deprecated) and the `_bare_compat` bits of
      `TransactionExtension` (deprecated).
        - Inherents: Not gossiped, validated with `ProvideInherent`.
      - Extended (Extra data): Gossiped, validated via `TransactionExtension`.
        - Signed transactions (with a hardcoded signature).
        - General transactions (without a hardcoded signature).
      
      `TransactionExtension` differs from `SignedExtension` because:
      - A signature on the underlying transaction may validly not be present.
      - It may alter the origin during validation.
      - `pre_dispatch` is renamed to `prepare` and need not contain the checks
      present in `validate`.
      - `validate` and `prepare` is passed an `Origin` rather than a
      `AccountId`.
      - `validate` may pass arbitrary information into `prepare` via a new
      user-specifiable type `Val`.
      - `AdditionalSigned`/`additional_signed` is renamed to
      `Implicit`/`implicit`. It is encoded *for the entire transaction* and
      passed in to each extension as a new argument to `validate`. This
      facilitates the ability of extensions to acts as underlying crypto.
      
      There is a new `DispatchTransaction` trait which contains only default
      function impls and is impl'ed for any `TransactionExtension` impler. It
      provides several utility functions which reduce some of the tedium from
      using `TransactionExtension` (indeed, none of its regular functions
      should now need to be called directly).
      
      Three transaction version discriminator ("versions") are now
      permissible:
      - 0b000000100: Bare (used to be called "Unsigned"): contains Signature
      or Extra (extension data). After bare transactions are no longer
      supported, this will strictly identify an Inherents only.
      - 0b100000100: Old-school "Signed" Transaction: contains Signature and
      Extra (extension data).
      - 0b010000100: New-school "General" Transaction: contains Extra
      (extension data), but no Signature.
      
      For the New-school General Transaction, it becomes trivial for authors
      to publish extensions to the mechanism for authorizing an Origin, e.g.
      through new kinds of key-signing schemes, ZK proofs, pallet state,
      mutations over pre-authenticated origins or any combination of the
      above.
      
      ## Code Migration
      
      ### NOW: Getting it to build
      
      Wrap your `SignedExtension`s in `AsTransactionExtension`. This should be
      accompanied by renaming your aggregate type in line with the new
      terminology. E.g. Before:
      
      ```rust
      /// The SignedExtension to the basic transaction logic.
      pub type SignedExtra = (
      	/* snip */
      	MySpecialSignedExtension,
      );
      /// Unchecked extrinsic type as expected by this runtime.
      pub type UncheckedExtrinsic =
      	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, SignedExtra>;
      ```
      
      After:
      
      ```rust
      /// The extension to the basic transaction logic.
      pub type TxExtension = (
      	/* snip */
      	AsTransactionExtension<MySpecialSignedExtension>,
      );
      /// Unchecked extrinsic type as expected by this runtime.
      pub type UncheckedExtrinsic =
      	generic::UncheckedExtrinsic<Address, RuntimeCall, Signature, TxExtension>;
      ```
      
      You'll also need to alter any transaction building logic to add a
      `.into()` to make the conversion happen. E.g. Before:
      
      ```rust
      fn construct_extrinsic(
      		/* snip */
      ) -> UncheckedExtrinsic {
      	let extra: SignedExtra = (
      		/* snip */
      		MySpecialSignedExtension::new(/* snip */),
      	);
      	let payload = SignedPayload::new(call.clone(), extra.clone()).unwrap();
      	let signature = payload.using_encoded(|e| sender.sign(e));
      	UncheckedExtrinsic::new_signed(
      		/* snip */
      		Signature::Sr25519(signature),
      		extra,
      	)
      }
      ```
      
      After:
      
      ```rust
      fn construct_extrinsic(
      		/* snip */
      ) -> UncheckedExtrinsic {
      	let tx_ext: TxExtension = (
      		/* snip */
      		MySpecialSignedExtension::new(/* snip */).into(),
      	);
      	let payload = SignedPayload::new(call.clone(), tx_ext.clone()).unwrap();
      	let signature = payload.using_encoded(|e| sender.sign(e));
      	UncheckedExtrinsic::new_signed(
      		/* snip */
      		Signature::Sr25519(signature),
      		tx_ext,
      	)
      }
      ```
      
      ### SOON: Migrating to `TransactionExtension`
      
      Most `SignedExtension`s can be trivially converted to become a
      `TransactionExtension`. There are a few things to know.
      
      - Instead of a single trait like `SignedExtension`, you should now
      implement two traits individually: `TransactionExtensionBase` and
      `TransactionExtension`.
      - Weights are now a thing and must be provided via the new function `fn
      weight`.
      
      #### `TransactionExtensionBase`
      
      This trait takes care of anything which is not dependent on types
      specific to your runtime, most notably `Call`.
      
      - `AdditionalSigned`/`additional_signed` is renamed to
      `Implicit`/`implicit`.
      - Weight must be returned by implementing the `weight` function. If your
      extension is associated with a pallet, you'll probably want to do this
      via the pallet's existing benchmarking infrastructure.
      
      #### `TransactionExtension`
      
      Generally:
      - `pre_dispatch` is now `prepare` and you *should not reexecute the
      `validate` functionality in there*!
      - You don't get an account ID any more; you get an origin instead. If
      you need to presume an account ID, then you can use the trait function
      `AsSystemOriginSigner::as_system_origin_signer`.
      - You get an additional ticket, similar to `Pre`, called `Val`. This
      defines data which is passed from `validate` into `prepare`. This is
      important since you should not be duplicating logic from `validate` to
      `prepare`, you need a way of passing your working from the former into
      the latter. This is it.
      - This trait takes two type parameters: `Call` and `Context`. `Call` is
      the runtime call type which used to be an associated type; you can just
      move it to become a type parameter for your trait impl. `Context` is not
      currently used and you can safely implement over it as an unbounded
      type.
      - There's no `AccountId` associated type any more. Just remove it.
      
      Regarding `validate`:
      - You get three new parameters in `validate`; all can be ignored when
      migrating from `SignedExtension`.
      - `validate` returns a tuple on success; the second item in the tuple is
      the new ticket type `Self::Val` which gets passed in to `prepare`. If
      you use any information extracted during `validate` (off-chain and
      on-chain, non-mutating) in `prepare` (on-chain, mutating) then you can
      pass it through with this. For the tuple's last item, just return the
      `origin` argument.
      
      Regarding `prepare`:
      - This is renamed from `pre_dispatch`, but there is one change:
      - FUNCTIONALITY TO VALIDATE THE TRANSACTION NEED NOT BE DUPLICATED FROM
      `validate`!!
      - (This is different to `SignedExtension` which was required to run the
      same checks in `pre_dispatch` as in `validate`.)
      
      Regarding `post_dispatch`:
      - Since there are no unsigned transactions handled by
      `TransactionExtension`, `Pre` is always defined, so the first parameter
      is `Self::Pre` rather than `Option<Self::Pre>`.
      
      If you make use of `SignedExtension::validate_unsigned` or
      `SignedExtension::pre_dispatch_unsigned`, then:
      - Just use the regular versions of these functions instead.
      - Have your logic execute in the case that the `origin` is `None`.
      - Ensure your transaction creation logic creates a General Transaction
      rather than a Bare Transaction; this means having to include all
      `TransactionExtension`s' data.
      - `ValidateUnsigned` can still be used (for now) if you need to be able
      to construct transactions which contain none of the extension data,
      however these will be phased out in stage 2 of the Transactions Horizon,
      so you should consider moving to an extension-centric design.
      
      ## TODO
      
      - [x] Introduce `CheckSignature` impl of `TransactionExtension` to
      ensure it's possible to have crypto be done wholly in a
      `TransactionExtension`.
      - [x] Deprecate `SignedExtension` and move all uses in codebase to
      `TransactionExtension`.
        - [x] `ChargeTransactionPayment`
        - [x] `DummyExtension`
        - [x] `ChargeAssetTxPayment` (asset-tx-payment)
        - [x] `ChargeAssetTxPayment` (asset-conversion-tx-payment)
        - [x] `CheckWeight`
        - [x] `CheckTxVersion`
        - [x] `CheckSpecVersion`
        - [x] `CheckNonce`
        - [x] `CheckNonZeroSender`
        - [x] `CheckMortality`
        - [x] `CheckGenesis`
        - [x] `CheckOnlySudoAccount`
        - [x] `WatchDummy`
        - [x] `PrevalidateAttests`
        - [x] `GenericSignedExtension`
        - [x] `SignedExtension` (chain-polkadot-bulletin)
        - [x] `RefundSignedExtensionAdapter`
      - [x] Implement `fn weight` across the board.
      - [ ] Go through all pre-existing extensions which assume an account
      signer and explicitly handle the possibility of another kind of origin.
      - [x] `CheckNonce` should probably succeed in the case of a non-account
      origin.
      - [x] `CheckNonZeroSender` should succeed in the case of a non-account
      origin.
      - [x] `ChargeTransactionPayment` and family should fail in the case of a
      non-account origin.
        - [ ] 
      - [x] Fix any broken tests.
      
      ---------
      
      Signed-off-by: default avatargeorgepisaltu <[email protected]>
      Signed-off-by: default avatarAlexandru Vasile <[email protected]>
      Signed-off-by: default avatardependabot[bot] <[email protected]>
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      fd5f9292
  3. Feb 13, 2024
  4. Feb 08, 2024
    • Louis Merlin's avatar
      Add try_state and integrity_test to XCM simulator fuzzer (#3222) · 84d89e37
      Louis Merlin authored
      This adds `try_state()` and `integrity_test()` to the four runtimes of
      the XCM-simulator fuzzer.
      
      With this, we are able to stress-test [message-queue's
      try_state](https://github.com/paritytech/polkadot-sdk/blob/7df1ae3b/substrate/frame/message-queue/src/lib.rs#L1245-L1347).
      
      This also adds the `Transact` block-listing from #2424 to avoid
      false-positives.
      
      Thank you @ggwpez for the help with the runtime configurations.
      84d89e37
  5. Jan 31, 2024
    • Branislav Kontur's avatar
      [frame] `#[pallet::composite_enum]` improved variant count handling + removed... · bb8ddc46
      Branislav Kontur authored
      [frame] `#[pallet::composite_enum]` improved variant count handling + removed `pallet_balances`'s `MaxHolds` config (#2657)
      
      I started this investigation/issue based on @liamaharon
      
       question
      [here](https://github.com/paritytech/polkadot-sdk/pull/1801#discussion_r1410452499).
      
      ## Problem
      
      The `pallet_balances` integrity test should correctly detect that the
      runtime has correct distinct `HoldReasons` variant count. I assume the
      same situation exists for RuntimeFreezeReason.
      
      It is not a critical problem, if we set `MaxHolds` with a sufficiently
      large value, everything should be ok. However, in this case, the
      integrity_test check becomes less useful.
      
      **Situation for "any" runtime:**
      - `HoldReason` enums from different pallets:
      ```rust
              /// from pallet_nis
              #[pallet::composite_enum]
      	pub enum HoldReason {
      		NftReceipt,
      	}
      
              /// from pallet_preimage
              #[pallet::composite_enum]
      	pub enum HoldReason {
      		Preimage,
      	}
      
              // from pallet_state-trie-migration
              #[pallet::composite_enum]
      	pub enum HoldReason {
      		SlashForContinueMigrate,
      		SlashForMigrateCustomTop,
      		SlashForMigrateCustomChild,
      	}
      ```
      
      - generated `RuntimeHoldReason` enum looks like:
      ```rust
      pub enum RuntimeHoldReason {
      
          #[codec(index = 32u8)]
          Preimage(pallet_preimage::HoldReason),
      
          #[codec(index = 38u8)]
          Nis(pallet_nis::HoldReason),
      
          #[codec(index = 42u8)]
          StateTrieMigration(pallet_state_trie_migration::HoldReason),
      }
      ```
      
      - composite enum `RuntimeHoldReason` variant count is detected as `3`
      - we set `type MaxHolds = ConstU32<3>`
      - `pallet_balances::integrity_test` is ok with `3`(at least 3)
      
      However, the real problem can occur in a live runtime where some
      functionality might stop working. This is due to a total of 5 distinct
      hold reasons (for pallets with multi-instance support, it is even more),
      and not all of them can be used because of an incorrect `MaxHolds`,
      which is deemed acceptable according to the `integrity_test`:
        ```
        // pseudo-code - if we try to call all of these:
      
      T::Currency::hold(&pallet_nis::HoldReason::NftReceipt.into(),
      &nft_owner, deposit)?;
      T::Currency::hold(&pallet_preimage::HoldReason::Preimage.into(),
      &nft_owner, deposit)?;
      
      T::Currency::hold(&pallet_state_trie_migration::HoldReason::SlashForContinueMigrate.into(),
      &nft_owner, deposit)?;
      
        // With `type MaxHolds = ConstU32<3>` these two will fail
      
      T::Currency::hold(&pallet_state_trie_migration::HoldReason::SlashForMigrateCustomTop.into(),
      &nft_owner, deposit)?;
      
      T::Currency::hold(&pallet_state_trie_migration::HoldReason::SlashForMigrateCustomChild.into(),
      &nft_owner, deposit)?;
        ```  
      
      
      ## Solutions
      
      A macro `#[pallet::*]` expansion is extended of `VariantCount`
      implementation for the `#[pallet::composite_enum]` enum type. This
      expansion generates the `VariantCount` implementation for pallets'
      `HoldReason`, `FreezeReason`, `LockId`, and `SlashReason`. Enum variants
      must be plain enum values without fields to ensure a deterministic
      count.
      
      The composite runtime enum, `RuntimeHoldReason` and
      `RuntimeFreezeReason`, now sets `VariantCount::VARIANT_COUNT` as the sum
      of pallets' enum `VariantCount::VARIANT_COUNT`:
      ```rust
      #[frame_support::pallet(dev_mode)]
      mod module_single_instance {
      
      	#[pallet::composite_enum]
      	pub enum HoldReason {
      		ModuleSingleInstanceReason1,
      		ModuleSingleInstanceReason2,
      	}
      ...
      }
      
      #[frame_support::pallet(dev_mode)]
      mod module_multi_instance {
      
      	#[pallet::composite_enum]
      	pub enum HoldReason<I: 'static = ()> {
      		ModuleMultiInstanceReason1,
      		ModuleMultiInstanceReason2,
      		ModuleMultiInstanceReason3,
      	}
      ...
      }
      
      
      impl self::sp_api_hidden_includes_construct_runtime::hidden_include::traits::VariantCount
          for RuntimeHoldReason
      {
          const VARIANT_COUNT: u32 = 0
              + module_single_instance::HoldReason::VARIANT_COUNT
              + module_multi_instance::HoldReason::<module_multi_instance::Instance1>::VARIANT_COUNT
              + module_multi_instance::HoldReason::<module_multi_instance::Instance2>::VARIANT_COUNT
              + module_multi_instance::HoldReason::<module_multi_instance::Instance3>::VARIANT_COUNT;
      }
      ```
      
      In addition, `MaxHolds` is removed (as suggested
      [here](https://github.com/paritytech/polkadot-sdk/pull/2657#discussion_r1443324573))
      from `pallet_balances`, and its `Holds` are now bounded to
      `RuntimeHoldReason::VARIANT_COUNT`. Therefore, there is no need to let
      the runtime specify `MaxHolds`.
      
      
      ## For reviewers
      
      Relevant changes can be found here:
      - `substrate/frame/support/procedural/src/lib.rs` 
      -  `substrate/frame/support/procedural/src/pallet/parse/composite.rs`
      -  `substrate/frame/support/procedural/src/pallet/expand/composite.rs`
      -
      `substrate/frame/support/procedural/src/construct_runtime/expand/composite_helper.rs`
      -
      `substrate/frame/support/procedural/src/construct_runtime/expand/hold_reason.rs`
      -
      `substrate/frame/support/procedural/src/construct_runtime/expand/freeze_reason.rs`
      - `substrate/frame/support/src/traits/misc.rs`
      
      And the rest of the files is just about removed `MaxHolds` from
      `pallet_balances`
      
      ## Next steps
      
      Do the same for `MaxFreezes`
      https://github.com/paritytech/polkadot-sdk/issues/2997.
      
      ---------
      
      Co-authored-by: command-bot <>
      Co-authored-by: default avatarBastian Köcher <[email protected]>
      Co-authored-by: default avatarDónal Murray <[email protected]>
      Co-authored-by: default avatargupnik <[email protected]>
      bb8ddc46
  6. Jan 24, 2024
    • dependabot[bot]'s avatar
      Bump arbitrary from 1.3.0 to 1.3.2 (#3037) · b57e53dc
      dependabot[bot] authored
      
      
      Bumps [arbitrary](https://github.com/rust-fuzz/arbitrary) from 1.3.0 to
      1.3.2.
      <details>
      <summary>Changelog</summary>
      <p><em>Sourced from <a
      href="https://github.com/rust-fuzz/arbitrary/blob/main/CHANGELOG.md">arbitrary's
      changelog</a>.</em></p>
      <blockquote>
      <h2>1.3.2</h2>
      <p>Released 2023-10-30.</p>
      <h3>Added</h3>
      <ul>
      <li>Added <code>Arbitrary</code> implementations for
      <code>Arc&lt;[T]&gt;</code> and
      <code>Rc&lt;[T]&gt;</code>. <a
      href="https://redirect.github.com/rust-fuzz/arbitrary/pull/160">#160</a></li>
      </ul>
      <hr />
      <h2>1.3.1</h2>
      <p>Released 2023-10-11.</p>
      <h3>Fixed</h3>
      <ul>
      <li>Fixed an issue with generating collections of collections in
      <code>arbitrary_take_rest</code> where
      <code>&lt;Vec&lt;Vec&lt;u8&gt;&gt;&gt;::arbitrary_take_rest</code> would
      never
      generate <code>vec![vec![]]</code> for example. See
      <a
      href="https://redirect.github.com/rust-fuzz/arbitrary/pull/159">#159</a>
      for details.</li>
      </ul>
      <hr />
      </blockquote>
      </details>
      <details>
      <summary>Commits</summary>
      <ul>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/66e75c5bf57275d400d3ebc746e0cee4f6ff9596"><code>66e75c5</code></a>
      Bump to version 1.3.1</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/04054dfa1a0f07b233db0581c2d61615df737ade"><code>04054df</code></a>
      Merge pull request <a
      href="https://redirect.github.com/rust-fuzz/arbitrary/issues/160">#160</a>
      from kpreid/arcslice</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/ef5dff63e4f3079acc6455445f0a8080d4857813"><code>ef5dff6</code></a>
      Implement <code>Arbitrary</code> for <code>Arc\&lt;[A]&gt;</code> and
      <code>Rc\&lt;[A]&gt;</code>.</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/b3e8342ea8dc8437aff3d3a1f5b95b7c02bf57f5"><code>b3e8342</code></a>
      Bump to version 1.3.1</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/c1fa740bb777940bda77a4154d035805b4ecce5b"><code>c1fa740</code></a>
      Merge pull request <a
      href="https://redirect.github.com/rust-fuzz/arbitrary/issues/159">#159</a>
      from fitzgen/arbitrary-take-rest-and-collections-of-c...</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/f19fd7a512fe953e902954d01fe046475d8f01a7"><code>f19fd7a</code></a>
      Add clippy allow for existing code running afoul of new clippy lint</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/27560f182b5f0feb8dbd70791cbadd6fbd622411"><code>27560f1</code></a>
      Fix <code>Unstructured::arbitrary_take_rest_iter</code> for collections
      of collections</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/80d6bfe5e8c864a05ed8c1f0a107bca632ea8c61"><code>80d6bfe</code></a>
      Merge pull request <a
      href="https://redirect.github.com/rust-fuzz/arbitrary/issues/157">#157</a>
      from jyn514/ip-addr</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/7d3364edb6a39554c4b97f0d0548289f001121fe"><code>7d3364e</code></a>
      impl Arbitrary for IpAddr</li>
      <li><a
      href="https://github.com/rust-fuzz/arbitrary/commit/0bdbec8a9fdf19a18e6cb8ffe4022b9a6a588cf2"><code>0bdbec8</code></a>
      Merge pull request <a
      href="https://redirect.github.com/rust-fuzz/arbitrary/issues/151">#151</a>
      from Ekleog-NEAR/patch-2</li>
      <li>Additional commits viewable in <a
      href="https://github.com/rust-fuzz/arbitrary/compare/v1.3.0...v1.3.2">compare
      view</a></li>
      </ul>
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      b57e53dc
    • 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
  7. Jan 22, 2024
  8. Jan 18, 2024
  9. 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
  10. 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
  12. Nov 28, 2023
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. Aug 29, 2023
  20. Aug 28, 2023
  21. Aug 25, 2023
  22. Aug 16, 2023
  23. Aug 04, 2023
  24. 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
  25. 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
  26. Jul 12, 2023
  27. Jun 28, 2023
  28. Jun 21, 2023
  29. 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
  30. 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
  31. May 21, 2023
  32. May 19, 2023
  33. 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
  34. Apr 12, 2023
  35. Apr 08, 2023
  36. Mar 23, 2023