git.delta.rocks / unique-network / refs/commits / d8b03ef62dde

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6085,7 +6085,7 @@
 
 [[package]]
 name = "pallet-fungible"
-version = "0.1.7"
+version = "0.1.9"
 dependencies = [
  "ethereum 0.14.0",
  "evm-coder",
@@ -6342,7 +6342,7 @@
 
 [[package]]
 name = "pallet-nonfungible"
-version = "0.1.11"
+version = "0.1.12"
 dependencies = [
  "ethereum 0.14.0",
  "evm-coder",
@@ -6501,7 +6501,7 @@
 
 [[package]]
 name = "pallet-refungible"
-version = "0.2.10"
+version = "0.2.11"
 dependencies = [
  "derivative",
  "ethereum 0.14.0",

--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -36,7 +36,7 @@
 use crate::{
 	Pallet, CollectionHandle, Config, CollectionProperties, SelfWeightOf,
 	eth::{
-		EthCrossAccount, convert_cross_account_to_uint256, CollectionPermissions as EvmPermissions,
+		EthCrossAccount, CollectionPermissions as EvmPermissions,
 		CollectionLimits as EvmCollectionLimits,
 	},
 	weights::WeightInfo,
@@ -289,20 +289,13 @@
 	/// Get current sponsor.
 	///
 	/// @return Tuble with sponsor address and his substrate mirror. If there is no confirmed sponsor error "Contract has no sponsor" throw.
-	fn collection_sponsor(&self) -> Result<(address, uint256)> {
+	fn collection_sponsor(&self) -> Result<EthCrossAccount> {
 		let sponsor = match self.collection.sponsorship.sponsor() {
 			Some(sponsor) => sponsor,
 			None => return Ok(Default::default()),
 		};
-		let sponsor = T::CrossAccountId::from_sub(sponsor.clone());
-		let result: (address, uint256) = if sponsor.is_canonical_substrate() {
-			let sponsor = convert_cross_account_to_uint256::<T>(&sponsor);
-			(Default::default(), sponsor)
-		} else {
-			let sponsor = *sponsor.as_eth();
-			(sponsor, Default::default())
-		};
-		Ok(result)
+
+		Ok(EthCrossAccount::from_sub::<T>(&sponsor))
 	}
 
 	/// Get current collection limits.

--- a/pallets/common/src/eth.rs
+++ b/pallets/common/src/eth.rs
@@ -53,15 +53,6 @@
 	address[0..16] == ETH_COLLECTION_PREFIX
 }
 
-/// Convert `CrossAccountId` to `uint256`.
-pub fn convert_cross_account_to_uint256<T: Config>(from: &T::CrossAccountId) -> uint256
-where
-	T::AccountId: AsRef<[u8; 32]>,
-{
-	let slice = from.as_sub().as_ref();
-	uint256::from_big_endian(slice)
-}
-
 /// Convert `uint256` to `CrossAccountId`.
 pub fn convert_uint256_to_cross_account<T: Config>(from: uint256) -> T::CrossAccountId
 where
@@ -71,46 +62,6 @@
 	from.to_big_endian(&mut new_admin_arr);
 	let account_id = T::AccountId::from(new_admin_arr);
 	T::CrossAccountId::from_sub(account_id)
-}
-
-/// Convert `CrossAccountId` to `(address, uint256)`.
-pub fn convert_cross_account_to_tuple<T: Config>(
-	cross_account_id: &T::CrossAccountId,
-) -> (address, uint256)
-where
-	T::AccountId: AsRef<[u8; 32]>,
-{
-	if cross_account_id.is_canonical_substrate() {
-		let sub = convert_cross_account_to_uint256::<T>(cross_account_id);
-		(Default::default(), sub)
-	} else {
-		let eth = *cross_account_id.as_eth();
-		(eth, Default::default())
-	}
-}
-
-/// Convert tuple `(address, uint256)` to `CrossAccountId`.
-///
-/// If `address` in the tuple has *default* value, then the canonical form is substrate,
-/// if `uint256` has *default* value, then the ethereum form is canonical,
-/// if both values are *default* or *non default*, then this is considered an invalid address and `Error` is returned.
-pub fn convert_tuple_to_cross_account<T: Config>(
-	eth_cross_account_id: (address, uint256),
-) -> evm_coder::execution::Result<T::CrossAccountId>
-where
-	T::AccountId: From<[u8; 32]>,
-{
-	if eth_cross_account_id == Default::default() {
-		Err("All fields of cross account is zeroed".into())
-	} else if eth_cross_account_id.0 == Default::default() {
-		Ok(convert_uint256_to_cross_account::<T>(
-			eth_cross_account_id.1,
-		))
-	} else if eth_cross_account_id.1 == Default::default() {
-		Ok(T::CrossAccountId::from_eth(eth_cross_account_id.0))
-	} else {
-		Err("All fields of cross account is non zeroed".into())
-	}
 }
 
 /// Cross account struct
@@ -121,16 +72,14 @@
 }
 
 impl EthCrossAccount {
+	/// Converts `CrossAccountId` to `EthCrossAccountId`
 	pub fn from_sub_cross_account<T>(cross_account_id: &T::CrossAccountId) -> Self
 	where
 		T: pallet_evm::Config,
 		T::AccountId: AsRef<[u8; 32]>,
 	{
 		if cross_account_id.is_canonical_substrate() {
-			Self {
-				eth: Default::default(),
-				sub: convert_cross_account_to_uint256::<T>(cross_account_id),
-			}
+			Self::from_sub::<T>(cross_account_id.as_sub())
 		} else {
 			Self {
 				eth: *cross_account_id.as_eth(),
@@ -138,7 +87,18 @@
 			}
 		}
 	}
-
+	/// Creates `EthCrossAccount` from substrate account
+	pub fn from_sub<T>(account_id: &T::AccountId) -> Self
+	where
+		T: pallet_evm::Config,
+		T::AccountId: AsRef<[u8; 32]>,
+	{
+		Self {
+			eth: Default::default(),
+			sub: uint256::from_big_endian(account_id.as_ref()),
+		}
+	}
+	/// Converts `EthCrossAccount` to `CrossAccountId`
 	pub fn into_sub_cross_account<T>(&self) -> evm_coder::execution::Result<T::CrossAccountId>
 	where
 		T: pallet_evm::Config,
@@ -163,29 +123,41 @@
 	/// How many tokens can a user have on one account.
 	#[default]
 	AccountTokenOwnership,
+
 	/// How many bytes of data are available for sponsorship.
 	SponsoredDataSize,
+
 	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]
 	SponsoredDataRateLimit,
+
 	/// How many tokens can be mined into this collection.
 	TokenLimit,
+
 	/// Timeouts for transfer sponsoring.
 	SponsorTransferTimeout,
+
 	/// Timeout for sponsoring an approval in passed blocks.
 	SponsorApproveTimeout,
+
 	/// Whether the collection owner of the collection can send tokens (which belong to other users).
 	OwnerCanTransfer,
+
 	/// Can the collection owner burn other people's tokens.
 	OwnerCanDestroy,
+
 	/// Is it possible to send tokens from this collection between users.
 	TransferEnabled,
 }
+/// Ethereum representation of `NestingPermissions` (see [`up_data_structs::NestingPermissions`]) fields as an enumeration.
 #[derive(Default, Debug, Clone, Copy, AbiCoder)]
 #[repr(u8)]
 pub enum CollectionPermissions {
+	/// Owner of token can nest tokens under it.
 	#[default]
-	CollectionAdmin,
 	TokenOwner,
+
+	/// Admin of token collection can nest tokens under token.
+	CollectionAdmin,
 }
 
 /// Ethereum representation of TokenPermissions (see [`up_data_structs::PropertyPermission`]) fields as an enumeration.

--- a/pallets/evm-contract-helpers/Cargo.toml
+++ b/pallets/evm-contract-helpers/Cargo.toml
@@ -50,6 +50,7 @@
     "pallet-evm-coder-substrate/std",
     "pallet-evm/std",
     "up-sponsorship/std",
+    "pallet-common/std",
 ]
 try-runtime = ["frame-support/try-runtime"]
-stubgen = ["evm-coder/stubgen"]
+stubgen = ["evm-coder/stubgen", "pallet-common/stubgen"]

--- a/pallets/evm-contract-helpers/src/eth.rs
+++ b/pallets/evm-contract-helpers/src/eth.rs
@@ -25,6 +25,7 @@
 	types::*,
 	ToLog,
 };
+use pallet_common::eth::EthCrossAccount;
 use pallet_evm::{
 	ExitRevert, OnCreate, OnMethodCall, PrecompileResult, PrecompileFailure, PrecompileHandle,
 	account::CrossAccountId,
@@ -174,11 +175,9 @@
 	///
 	/// @param contractAddress The contract for which a sponsor is requested.
 	/// @return Tuble with sponsor address and his substrate mirror. If there is no confirmed sponsor error "Contract has no sponsor" throw.
-	fn sponsor(&self, contract_address: address) -> Result<(address, uint256)> {
-		let sponsor =
-			Pallet::<T>::get_sponsor(contract_address).ok_or("Contract has no sponsor")?;
-		Ok(pallet_common::eth::convert_cross_account_to_tuple::<T>(
-			&sponsor,
+	fn sponsor(&self, contract_address: address) -> Result<EthCrossAccount> {
+		Ok(EthCrossAccount::from_sub_cross_account::<T>(
+			&Pallet::<T>::get_sponsor(contract_address).ok_or("Contract has no sponsor")?,
 		))
 	}
 

binary blob — no preview

--- a/pallets/evm-contract-helpers/src/stubs/ContractHelpers.sol
+++ b/pallets/evm-contract-helpers/src/stubs/ContractHelpers.sol
@@ -96,11 +96,11 @@
 	/// @return Tuble with sponsor address and his substrate mirror. If there is no confirmed sponsor error "Contract has no sponsor" throw.
 	/// @dev EVM selector for this function is: 0x766c4f37,
 	///  or in textual repr: sponsor(address)
-	function sponsor(address contractAddress) public view returns (Tuple0 memory) {
+	function sponsor(address contractAddress) public view returns (EthCrossAccount memory) {
 		require(false, stub_error);
 		contractAddress;
 		dummy;
-		return Tuple0(0x0000000000000000000000000000000000000000, 0);
+		return EthCrossAccount(0x0000000000000000000000000000000000000000, 0);
 	}
 
 	/// Check tat contract has confirmed sponsor.
@@ -265,8 +265,8 @@
 	}
 }
 
-/// @dev anonymous struct
-struct Tuple0 {
-	address field_0;
-	uint256 field_1;
+/// @dev Cross account struct
+struct EthCrossAccount {
+	address eth;
+	uint256 sub;
 }

--- a/pallets/fungible/CHANGELOG.md
+++ b/pallets/fungible/CHANGELOG.md
@@ -4,6 +4,12 @@
 
 <!-- bureaucrate goes here -->
 
+## [0.1.9] - 2022-12-01
+
+### Added
+
+- The functions `mintCross` to `ERC20UniqueExtensions` interface.
+
 ## [0.1.8] - 2022-11-18
 
 ### Added

--- a/pallets/fungible/Cargo.toml
+++ b/pallets/fungible/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-fungible"
-version = "0.1.7"
+version = "0.1.9"
 license = "GPLv3"
 edition = "2021"
 

--- a/pallets/fungible/src/erc.rs
+++ b/pallets/fungible/src/erc.rs
@@ -174,6 +174,19 @@
 			.collect::<string>())
 	}
 
+	#[weight(<SelfWeightOf<T>>::create_item())]
+	fn mint_cross(&mut self, caller: caller, to: EthCrossAccount, amount: uint256) -> Result<bool> {
+		let caller = T::CrossAccountId::from_eth(caller);
+		let to = to.into_sub_cross_account::<T>()?;
+		let amount = amount.try_into().map_err(|_| "amount overflow")?;
+		let budget = self
+			.recorder
+			.weight_calls_budget(<StructureWeight<T>>::find_parent());
+		<Pallet<T>>::create_item(&self, &caller, (to, amount), &budget)
+			.map_err(dispatch_to_evm::<T>)?;
+		Ok(true)
+	}
+
 	#[weight(<SelfWeightOf<T>>::approve())]
 	fn approve_cross(
 		&mut self,

binary blob — no preview

--- a/pallets/fungible/src/stubs/UniqueFungible.sol
+++ b/pallets/fungible/src/stubs/UniqueFungible.sol
@@ -152,10 +152,10 @@
 	/// @return Tuble with sponsor address and his substrate mirror. If there is no confirmed sponsor error "Contract has no sponsor" throw.
 	/// @dev EVM selector for this function is: 0x6ec0a9f1,
 	///  or in textual repr: collectionSponsor()
-	function collectionSponsor() public view returns (Tuple8 memory) {
+	function collectionSponsor() public view returns (EthCrossAccount memory) {
 		require(false, stub_error);
 		dummy;
-		return Tuple8(0x0000000000000000000000000000000000000000, 0);
+		return EthCrossAccount(0x0000000000000000000000000000000000000000, 0);
 	}
 
 	/// Get current collection limits.
@@ -173,10 +173,10 @@
 	/// Return `false` if a limit not set.
 	/// @dev EVM selector for this function is: 0xf63bc572,
 	///  or in textual repr: collectionLimits()
-	function collectionLimits() public view returns (Tuple20[] memory) {
+	function collectionLimits() public view returns (Tuple23[] memory) {
 		require(false, stub_error);
 		dummy;
-		return new Tuple20[](0);
+		return new Tuple23[](0);
 	}
 
 	/// Set limits for the collection.
@@ -284,19 +284,19 @@
 	/// Returns nesting for a collection
 	/// @dev EVM selector for this function is: 0x22d25bfe,
 	///  or in textual repr: collectionNestingRestrictedCollectionIds()
-	function collectionNestingRestrictedCollectionIds() public view returns (Tuple26 memory) {
+	function collectionNestingRestrictedCollectionIds() public view returns (Tuple29 memory) {
 		require(false, stub_error);
 		dummy;
-		return Tuple26(false, new uint256[](0));
+		return Tuple29(false, new uint256[](0));
 	}
 
 	/// Returns permissions for a collection
 	/// @dev EVM selector for this function is: 0x5b2eaf4b,
 	///  or in textual repr: collectionNestingPermissions()
-	function collectionNestingPermissions() public view returns (Tuple29[] memory) {
+	function collectionNestingPermissions() public view returns (Tuple32[] memory) {
 		require(false, stub_error);
 		dummy;
-		return new Tuple29[](0);
+		return new Tuple32[](0);
 	}
 
 	/// Set the collection access method.
@@ -476,13 +476,13 @@
 }
 
 /// @dev anonymous struct
-struct Tuple29 {
+struct Tuple32 {
 	CollectionPermissions field_0;
 	bool field_1;
 }
 
 /// @dev anonymous struct
-struct Tuple26 {
+struct Tuple29 {
 	bool field_0;
 	uint256[] field_1;
 }
@@ -510,7 +510,7 @@
 }
 
 /// @dev anonymous struct
-struct Tuple20 {
+struct Tuple23 {
 	CollectionLimits field_0;
 	bool field_1;
 	uint256 field_2;
@@ -522,7 +522,7 @@
 	bytes value;
 }
 
-/// @dev the ERC-165 identifier for this interface is 0x5b7038cf
+/// @dev the ERC-165 identifier for this interface is 0x7dee5997
 contract ERC20UniqueExtensions is Dummy, ERC165 {
 	/// @notice A description for the collection.
 	/// @dev EVM selector for this function is: 0x7284e416,
@@ -533,6 +533,16 @@
 		return "";
 	}
 
+	/// @dev EVM selector for this function is: 0x269e6158,
+	///  or in textual repr: mintCross((address,uint256),uint256)
+	function mintCross(EthCrossAccount memory to, uint256 amount) public returns (bool) {
+		require(false, stub_error);
+		to;
+		amount;
+		dummy = 0;
+		return false;
+	}
+
 	/// @dev EVM selector for this function is: 0x0ecd0ab0,
 	///  or in textual repr: approveCross((address,uint256),uint256)
 	function approveCross(EthCrossAccount memory spender, uint256 amount) public returns (bool) {
@@ -577,7 +587,7 @@
 	/// @param amounts array of pairs of account address and amount
 	/// @dev EVM selector for this function is: 0x1acf2d55,
 	///  or in textual repr: mintBulk((address,uint256)[])
-	function mintBulk(Tuple8[] memory amounts) public returns (bool) {
+	function mintBulk(Tuple9[] memory amounts) public returns (bool) {
 		require(false, stub_error);
 		amounts;
 		dummy = 0;
@@ -611,7 +621,7 @@
 }
 
 /// @dev anonymous struct
-struct Tuple8 {
+struct Tuple9 {
 	address field_0;
 	uint256 field_1;
 }

--- a/pallets/nonfungible/CHANGELOG.md
+++ b/pallets/nonfungible/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 <!-- bureaucrate goes here -->
 
-## [0.1.11] - 2022-12-16
+## [0.1.12] - 2022-12-16
 
 ### Added
 
@@ -14,6 +14,12 @@
 
 - Hide `setTokenPropertyPermission` function in `TokenProperties` interface.
 
+## [0.1.11] - 2022-12-01
+
+### Added
+
+- The functions `mintCross` to `ERC721UniqueExtensions` interface.
+
 ## [0.1.10] - 2022-11-18
 
 ### Added

--- a/pallets/nonfungible/Cargo.toml
+++ b/pallets/nonfungible/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-nonfungible"
-version = "0.1.11"
+version = "0.1.12"
 license = "GPLv3"
 edition = "2021"
 

--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -605,7 +605,7 @@
 		Ok(false)
 	}
 
-	/// @notice Function to mint token.
+	/// @notice Function to mint a token.
 	/// @param to The new owner
 	/// @return uint256 The id of the newly minted token
 	#[weight(<SelfWeightOf<T>>::create_item())]
@@ -618,7 +618,7 @@
 		Ok(token_id)
 	}
 
-	/// @notice Function to mint token.
+	/// @notice Function to mint a token.
 	/// @dev `tokenId` should be obtained with `nextTokenId` method,
 	///  unlike standard, you can't specify it manually
 	/// @param to The new owner
@@ -1069,6 +1069,58 @@
 			.map_err(dispatch_to_evm::<T>)?;
 		Ok(true)
 	}
+
+	/// @notice Function to mint a token.
+	/// @param to The new owner crossAccountId
+	/// @param properties Properties of minted token
+	/// @return uint256 The id of the newly minted token
+	#[weight(<SelfWeightOf<T>>::create_item())]
+	fn mint_cross(
+		&mut self,
+		caller: caller,
+		to: EthCrossAccount,
+		properties: Vec<PropertyStruct>,
+	) -> Result<uint256> {
+		let token_id = <TokensMinted<T>>::get(self.id)
+			.checked_add(1)
+			.ok_or("item id overflow")?;
+
+		let to = to.into_sub_cross_account::<T>()?;
+
+		let properties = properties
+			.into_iter()
+			.map(|PropertyStruct { key, value }| {
+				let key = <Vec<u8>>::from(key)
+					.try_into()
+					.map_err(|_| "key too large")?;
+
+				let value = value.0.try_into().map_err(|_| "value too large")?;
+
+				Ok(Property { key, value })
+			})
+			.collect::<Result<Vec<_>>>()?
+			.try_into()
+			.map_err(|_| Error::Revert(alloc::format!("too many properties")))?;
+
+		let caller = T::CrossAccountId::from_eth(caller);
+
+		let budget = self
+			.recorder
+			.weight_calls_budget(<StructureWeight<T>>::find_parent());
+
+		<Pallet<T>>::create_item(
+			self,
+			&caller,
+			CreateItemData::<T> {
+				properties,
+				owner: to,
+			},
+			&budget,
+		)
+		.map_err(dispatch_to_evm::<T>)?;
+
+		Ok(token_id.into())
+	}
 }
 
 #[solidity_interface(

binary blob — no preview

--- a/pallets/nonfungible/src/stubs/UniqueNFT.sol
+++ b/pallets/nonfungible/src/stubs/UniqueNFT.sol
@@ -42,7 +42,7 @@
 	/// @param permissions Permissions for keys.
 	/// @dev EVM selector for this function is: 0xbd92983a,
 	///  or in textual repr: setTokenPropertyPermissions((string,(uint8,bool)[])[])
-	function setTokenPropertyPermissions(Tuple59[] memory permissions) public {
+	function setTokenPropertyPermissions(Tuple61[] memory permissions) public {
 		require(false, stub_error);
 		permissions;
 		dummy = 0;
@@ -51,10 +51,10 @@
 	/// @notice Get permissions for token properties.
 	/// @dev EVM selector for this function is: 0xf23d7790,
 	///  or in textual repr: tokenPropertyPermissions()
-	function tokenPropertyPermissions() public view returns (Tuple59[] memory) {
+	function tokenPropertyPermissions() public view returns (Tuple61[] memory) {
 		require(false, stub_error);
 		dummy;
-		return new Tuple59[](0);
+		return new Tuple61[](0);
 	}
 
 	// /// @notice Set token property value.
@@ -144,13 +144,13 @@
 }
 
 /// @dev anonymous struct
-struct Tuple59 {
+struct Tuple61 {
 	string field_0;
-	Tuple57[] field_1;
+	Tuple59[] field_1;
 }
 
 /// @dev anonymous struct
-struct Tuple57 {
+struct Tuple59 {
 	EthTokenPermissions field_0;
 	bool field_1;
 }
@@ -290,10 +290,10 @@
 	/// @return Tuble with sponsor address and his substrate mirror. If there is no confirmed sponsor error "Contract has no sponsor" throw.
 	/// @dev EVM selector for this function is: 0x6ec0a9f1,
 	///  or in textual repr: collectionSponsor()
-	function collectionSponsor() public view returns (Tuple30 memory) {
+	function collectionSponsor() public view returns (EthCrossAccount memory) {
 		require(false, stub_error);
 		dummy;
-		return Tuple30(0x0000000000000000000000000000000000000000, 0);
+		return EthCrossAccount(0x0000000000000000000000000000000000000000, 0);
 	}
 
 	/// Get current collection limits.
@@ -311,10 +311,10 @@
 	/// Return `false` if a limit not set.
 	/// @dev EVM selector for this function is: 0xf63bc572,
 	///  or in textual repr: collectionLimits()
-	function collectionLimits() public view returns (Tuple33[] memory) {
+	function collectionLimits() public view returns (Tuple35[] memory) {
 		require(false, stub_error);
 		dummy;
-		return new Tuple33[](0);
+		return new Tuple35[](0);
 	}
 
 	/// Set limits for the collection.
@@ -422,19 +422,19 @@
 	/// Returns nesting for a collection
 	/// @dev EVM selector for this function is: 0x22d25bfe,
 	///  or in textual repr: collectionNestingRestrictedCollectionIds()
-	function collectionNestingRestrictedCollectionIds() public view returns (Tuple39 memory) {
+	function collectionNestingRestrictedCollectionIds() public view returns (Tuple41 memory) {
 		require(false, stub_error);
 		dummy;
-		return Tuple39(false, new uint256[](0));
+		return Tuple41(false, new uint256[](0));
 	}
 
 	/// Returns permissions for a collection
 	/// @dev EVM selector for this function is: 0x5b2eaf4b,
 	///  or in textual repr: collectionNestingPermissions()
-	function collectionNestingPermissions() public view returns (Tuple42[] memory) {
+	function collectionNestingPermissions() public view returns (Tuple44[] memory) {
 		require(false, stub_error);
 		dummy;
-		return new Tuple42[](0);
+		return new Tuple44[](0);
 	}
 
 	/// Set the collection access method.
@@ -614,13 +614,13 @@
 }
 
 /// @dev anonymous struct
-struct Tuple42 {
+struct Tuple44 {
 	CollectionPermissions field_0;
 	bool field_1;
 }
 
 /// @dev anonymous struct
-struct Tuple39 {
+struct Tuple41 {
 	bool field_0;
 	uint256[] field_1;
 }
@@ -648,18 +648,12 @@
 }
 
 /// @dev anonymous struct
-struct Tuple33 {
+struct Tuple35 {
 	CollectionLimits field_0;
 	bool field_1;
 	uint256 field_2;
 }
 
-/// @dev anonymous struct
-struct Tuple30 {
-	address field_0;
-	uint256 field_1;
-}
-
 /// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 /// @dev See https://eips.ethereum.org/EIPS/eip-721
 /// @dev the ERC-165 identifier for this interface is 0x5b5e139f
@@ -735,7 +729,7 @@
 		return false;
 	}
 
-	/// @notice Function to mint token.
+	/// @notice Function to mint a token.
 	/// @param to The new owner
 	/// @return uint256 The id of the newly minted token
 	/// @dev EVM selector for this function is: 0x6a627842,
@@ -747,7 +741,7 @@
 		return 0;
 	}
 
-	// /// @notice Function to mint token.
+	// /// @notice Function to mint a token.
 	// /// @dev `tokenId` should be obtained with `nextTokenId` method,
 	// ///  unlike standard, you can't specify it manually
 	// /// @param to The new owner
@@ -804,7 +798,7 @@
 }
 
 /// @title Unique extensions for ERC721.
-/// @dev the ERC-165 identifier for this interface is 0xb74c26b7
+/// @dev the ERC-165 identifier for this interface is 0x0e48fdb4
 contract ERC721UniqueExtensions is Dummy, ERC165 {
 	/// @notice A descriptive name for a collection of NFTs in this contract
 	/// @dev EVM selector for this function is: 0x06fdde03,
@@ -961,6 +955,7 @@
 		dummy;
 		return 0;
 	}
+
 	// /// @notice Function to mint multiple tokens.
 	// /// @dev `tokenIds` should be an array of consecutive numbers and first number
 	// ///  should be obtained with `nextTokenId` method
@@ -991,6 +986,19 @@
 	// 	return false;
 	// }
 
+	/// @notice Function to mint a token.
+	/// @param to The new owner crossAccountId
+	/// @param properties Properties of minted token
+	/// @return uint256 The id of the newly minted token
+	/// @dev EVM selector for this function is: 0xb904db03,
+	///  or in textual repr: mintCross((address,uint256),(string,bytes)[])
+	function mintCross(EthCrossAccount memory to, Property[] memory properties) public returns (uint256) {
+		require(false, stub_error);
+		to;
+		properties;
+		dummy = 0;
+		return 0;
+	}
 }
 
 /// @dev anonymous struct

--- a/pallets/refungible/CHANGELOG.md
+++ b/pallets/refungible/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 <!-- bureaucrate goes here -->
 
-## [0.2.10] - 2022-12-16
+## [0.2.11] - 2022-12-16
 
 ### Added
 
@@ -14,6 +14,12 @@
 
 - Hide `setTokenPropertyPermission` function in `TokenProperties` interface.
 
+## [0.2.10] - 2022-12-01
+
+### Added
+
+- The functions `mintCross` to `ERC721UniqueExtensions` interface.
+
 ## [0.2.9] - 2022-11-18
 
 ### Added

--- a/pallets/refungible/Cargo.toml
+++ b/pallets/refungible/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-refungible"
-version = "0.2.10"
+version = "0.2.11"
 license = "GPLv3"
 edition = "2021"