git.delta.rocks / unique-network / refs/commits / 214592d86cdb

difftreelog

misc: change uint256 to U256

Trubnikov Sergey2023-01-17parent: #7aa4c58.patch.diff
in: master

10 files changed

modifiedcrates/evm-coder/src/lib.rsdiffbeforeafterboth
--- a/crates/evm-coder/src/lib.rs
+++ b/crates/evm-coder/src/lib.rs
@@ -132,7 +132,6 @@
 	use primitive_types::{U256, H160, H256};
 
 	pub type address = H160;
-	pub type uint256 = U256;
 	pub type bytes4 = [u8; 4];
 	pub type topic = H256;
 
modifiedpallets/common/src/eth.rsdiffbeforeafterboth
before · pallets/common/src/eth.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! The module contains a number of functions for converting and checking ethereum identifiers.1819use alloc::format;20use sp_std::{vec, vec::Vec};21use evm_coder::{22	AbiCoder,23	types::{uint256, address},24};25pub use pallet_evm::{Config, account::CrossAccountId};26use sp_core::H160;27use up_data_structs::CollectionId;2829// 0x17c4e6453Cc49AAAaEACA894e6D9683e00000001 - collection 130// TODO: Unhardcode prefix31const ETH_COLLECTION_PREFIX: [u8; 16] = [32	0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,33];3435/// Maps the ethereum address of the collection in substrate.36pub fn map_eth_to_id(eth: &H160) -> Option<CollectionId> {37	if eth[0..16] != ETH_COLLECTION_PREFIX {38		return None;39	}40	let mut id_bytes = [0; 4];41	id_bytes.copy_from_slice(&eth[16..20]);42	Some(CollectionId(u32::from_be_bytes(id_bytes)))43}4445/// Maps the substrate collection id in ethereum.46pub fn collection_id_to_address(id: CollectionId) -> H160 {47	let mut out = [0; 20];48	out[0..16].copy_from_slice(&ETH_COLLECTION_PREFIX);49	out[16..20].copy_from_slice(&u32::to_be_bytes(id.0));50	H160(out)51}5253/// Check if the ethereum address is a collection.54pub fn is_collection(address: &H160) -> bool {55	address[0..16] == ETH_COLLECTION_PREFIX56}5758/// Convert `uint256` to `CrossAccountId`.59pub fn convert_uint256_to_cross_account<T: Config>(from: uint256) -> T::CrossAccountId60where61	T::AccountId: From<[u8; 32]>,62{63	let mut new_admin_arr = [0_u8; 32];64	from.to_big_endian(&mut new_admin_arr);65	let account_id = T::AccountId::from(new_admin_arr);66	T::CrossAccountId::from_sub(account_id)67}6869/// Cross account struct70#[derive(Debug, Default, AbiCoder)]71pub struct CrossAddress {72	pub(crate) eth: address,73	pub(crate) sub: uint256,74}7576impl CrossAddress {77	/// Converts `CrossAccountId` to [`CrossAddress`] to be correctly usable with Ethereum.78	pub fn from_sub_cross_account<T>(cross_account_id: &T::CrossAccountId) -> Self79	where80		T: pallet_evm::Config,81		T::AccountId: AsRef<[u8; 32]>,82	{83		if cross_account_id.is_canonical_substrate() {84			Self::from_sub::<T>(cross_account_id.as_sub())85		} else {86			Self {87				eth: *cross_account_id.as_eth(),88				sub: Default::default(),89			}90		}91	}92	/// Creates [`CrossAddress`] from Substrate account.93	pub fn from_sub<T>(account_id: &T::AccountId) -> Self94	where95		T: pallet_evm::Config,96		T::AccountId: AsRef<[u8; 32]>,97	{98		Self {99			eth: Default::default(),100			sub: uint256::from_big_endian(account_id.as_ref()),101		}102	}103	/// Converts [`CrossAddress`] to `CrossAccountId`.104	pub fn into_sub_cross_account<T>(&self) -> evm_coder::execution::Result<T::CrossAccountId>105	where106		T: pallet_evm::Config,107		T::AccountId: From<[u8; 32]>,108	{109		if self.eth == Default::default() && self.sub == Default::default() {110			Err("All fields of cross account is zeroed".into())111		} else if self.eth == Default::default() {112			Ok(convert_uint256_to_cross_account::<T>(self.sub))113		} else if self.sub == Default::default() {114			Ok(T::CrossAccountId::from_eth(self.eth))115		} else {116			Err("All fields of cross account is non zeroed".into())117		}118	}119}120121/// Ethereum representation of collection [`PropertyKey`](up_data_structs::PropertyKey) and [`PropertyValue`](up_data_structs::PropertyValue).122#[derive(Debug, Default, AbiCoder)]123pub struct Property {124	key: evm_coder::types::string,125	value: evm_coder::types::bytes,126}127128impl TryFrom<up_data_structs::Property> for Property {129	type Error = evm_coder::execution::Error;130131	fn try_from(from: up_data_structs::Property) -> Result<Self, Self::Error> {132		let key = evm_coder::types::string::from_utf8(from.key.into())133			.map_err(|e| Self::Error::Revert(format!("utf8 conversion error: {}", e)))?;134		let value = evm_coder::types::bytes(from.value.to_vec());135		Ok(Property { key, value })136	}137}138139impl TryInto<up_data_structs::Property> for Property {140	type Error = evm_coder::execution::Error;141142	fn try_into(self) -> Result<up_data_structs::Property, Self::Error> {143		let key = <Vec<u8>>::from(self.key)144			.try_into()145			.map_err(|_| "key too large")?;146147		let value = self.value.0.try_into().map_err(|_| "value too large")?;148149		Ok(up_data_structs::Property { key, value })150	}151}152153/// [`CollectionLimits`](up_data_structs::CollectionLimits) fields representation for EVM.154#[derive(Debug, Default, Clone, Copy, AbiCoder)]155#[repr(u8)]156pub enum CollectionLimitField {157	/// How many tokens can a user have on one account.158	#[default]159	AccountTokenOwnership,160161	/// How many bytes of data are available for sponsorship.162	SponsoredDataSize,163164	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]165	SponsoredDataRateLimit,166167	/// How many tokens can be mined into this collection.168	TokenLimit,169170	/// Timeouts for transfer sponsoring.171	SponsorTransferTimeout,172173	/// Timeout for sponsoring an approval in passed blocks.174	SponsorApproveTimeout,175176	/// Whether the collection owner of the collection can send tokens (which belong to other users).177	OwnerCanTransfer,178179	/// Can the collection owner burn other people's tokens.180	OwnerCanDestroy,181182	/// Is it possible to send tokens from this collection between users.183	TransferEnabled,184}185186/// [`CollectionLimits`](up_data_structs::CollectionLimits) field representation for EVM.187#[derive(Debug, Default, AbiCoder)]188pub struct CollectionLimit {189	field: CollectionLimitField,190	value: Option<uint256>,191}192193impl CollectionLimit {194	/// Create [`CollectionLimit`] from field and value.195	pub fn new(field: CollectionLimitField, value: Option<u32>) -> Self {196		Self {197			field,198			value: match value {199				Some(value) => Some(value.into()),200				None => None,201			},202		}203	}204	/// Whether the field contains a value.205	pub fn has_value(&self) -> bool {206		self.value.is_some()207	}208}209210impl TryInto<up_data_structs::CollectionLimits> for CollectionLimit {211	type Error = evm_coder::execution::Error;212213	fn try_into(self) -> Result<up_data_structs::CollectionLimits, Self::Error> {214		let value = self215			.value216			.ok_or::<Self::Error>("can't convert `None` value to boolean".into())?;217		let value = Some(value.try_into().map_err(|error| {218			Self::Error::Revert(format!(219				"can't convert value to u32 \"{}\" because: \"{error}\"",220				value221			))222		})?);223224		let convert_value_to_bool = || match value {225			Some(value) => match value {226				0 => Ok(Some(false)),227				1 => Ok(Some(true)),228				_ => {229					return Err(Self::Error::Revert(format!(230						"can't convert value to boolean \"{value}\""231					)))232				}233			},234			None => Ok(None),235		};236237		let mut limits = up_data_structs::CollectionLimits::default();238		match self.field {239			CollectionLimitField::AccountTokenOwnership => {240				limits.account_token_ownership_limit = value;241			}242			CollectionLimitField::SponsoredDataSize => {243				limits.sponsored_data_size = value;244			}245			CollectionLimitField::SponsoredDataRateLimit => {246				limits.sponsored_data_rate_limit = match value {247					Some(value) => Some(up_data_structs::SponsoringRateLimit::Blocks(value)),248					None => None,249				};250			}251			CollectionLimitField::TokenLimit => {252				limits.token_limit = value;253			}254			CollectionLimitField::SponsorTransferTimeout => {255				limits.sponsor_transfer_timeout = value;256			}257			CollectionLimitField::SponsorApproveTimeout => {258				limits.sponsor_approve_timeout = value;259			}260			CollectionLimitField::OwnerCanTransfer => {261				limits.owner_can_transfer = convert_value_to_bool()?;262			}263			CollectionLimitField::OwnerCanDestroy => {264				limits.owner_can_destroy = convert_value_to_bool()?;265			}266			CollectionLimitField::TransferEnabled => {267				limits.transfers_enabled = convert_value_to_bool()?;268			}269		};270		Ok(limits)271	}272}273274/// Ethereum representation of `NestingPermissions` (see [`up_data_structs::NestingPermissions`]) fields as an enumeration.275#[derive(Default, Debug, Clone, Copy, AbiCoder)]276#[repr(u8)]277pub enum CollectionPermissionField {278	/// Owner of token can nest tokens under it.279	#[default]280	TokenOwner,281282	/// Admin of token collection can nest tokens under token.283	CollectionAdmin,284}285286/// Ethereum representation of TokenPermissions (see [`up_data_structs::PropertyPermission`]) fields as an enumeration.287#[derive(AbiCoder, Copy, Clone, Default, Debug)]288#[repr(u8)]289pub enum TokenPermissionField {290	/// Permission to change the property and property permission. See [`up_data_structs::PropertyPermission::mutable`]291	#[default]292	Mutable,293294	/// Change permission for the collection administrator. See [`up_data_structs::PropertyPermission::token_owner`]295	TokenOwner,296297	/// Permission to change the property for the owner of the token. See [`up_data_structs::PropertyPermission::collection_admin`]298	CollectionAdmin,299}300301/// Ethereum representation of TokenPermissions (see [`up_data_structs::PropertyPermission`]) as an key and value.302#[derive(Debug, Default, AbiCoder)]303pub struct PropertyPermission {304	/// TokenPermission field.305	code: TokenPermissionField,306	/// TokenPermission value.307	value: bool,308}309310impl PropertyPermission {311	/// Make vector of [`PropertyPermission`] from [`up_data_structs::PropertyPermission`].312	pub fn into_vec(pp: up_data_structs::PropertyPermission) -> Vec<Self> {313		vec![314			PropertyPermission {315				code: TokenPermissionField::Mutable,316				value: pp.mutable,317			},318			PropertyPermission {319				code: TokenPermissionField::TokenOwner,320				value: pp.token_owner,321			},322			PropertyPermission {323				code: TokenPermissionField::CollectionAdmin,324				value: pp.collection_admin,325			},326		]327	}328329	/// Make [`up_data_structs::PropertyPermission`] from vector of [`PropertyPermission`].330	pub fn from_vec(permission: Vec<Self>) -> up_data_structs::PropertyPermission {331		let mut token_permission = up_data_structs::PropertyPermission::default();332333		for PropertyPermission { code, value } in permission {334			match code {335				TokenPermissionField::Mutable => token_permission.mutable = value,336				TokenPermissionField::TokenOwner => token_permission.token_owner = value,337				TokenPermissionField::CollectionAdmin => token_permission.collection_admin = value,338			}339		}340		token_permission341	}342}343344/// Ethereum representation of Token Property Permissions.345#[derive(Debug, Default, AbiCoder)]346pub struct TokenPropertyPermission {347	/// Token property key.348	key: evm_coder::types::string,349	/// Token property permissions.350	permissions: Vec<PropertyPermission>,351}352353impl354	From<(355		up_data_structs::PropertyKey,356		up_data_structs::PropertyPermission,357	)> for TokenPropertyPermission358{359	fn from(360		value: (361			up_data_structs::PropertyKey,362			up_data_structs::PropertyPermission,363		),364	) -> Self {365		let (key, permission) = value;366		let key = evm_coder::types::string::from_utf8(key.into_inner())367			.expect("Stored key must be valid");368		let permissions = PropertyPermission::into_vec(permission);369		Self { key, permissions }370	}371}372373impl TokenPropertyPermission {374	/// Convert vector of [`TokenPropertyPermission`] into vector of [`up_data_structs::PropertyKeyPermission`].375	pub fn into_property_key_permissions(376		permissions: Vec<TokenPropertyPermission>,377	) -> evm_coder::execution::Result<Vec<up_data_structs::PropertyKeyPermission>> {378		let mut perms = Vec::new();379380		for TokenPropertyPermission { key, permissions } in permissions {381			let token_permission = PropertyPermission::from_vec(permissions);382383			perms.push(up_data_structs::PropertyKeyPermission {384				key: key.into_bytes().try_into().map_err(|_| "too long key")?,385				permission: token_permission,386			});387		}388		Ok(perms)389	}390}391392/// Nested collections.393#[derive(Debug, Default, AbiCoder)]394pub struct CollectionNesting {395	token_owner: bool,396	ids: Vec<uint256>,397}398399impl CollectionNesting {400	/// Create [`CollectionNesting`].401	pub fn new(token_owner: bool, ids: Vec<uint256>) -> Self {402		Self { token_owner, ids }403	}404}405406/// Ethereum representation of `NestingPermissions` (see [`up_data_structs::NestingPermissions`]) field.407#[derive(Debug, Default, AbiCoder)]408pub struct CollectionNestingPermission {409	field: CollectionPermissionField,410	value: bool,411}412413impl CollectionNestingPermission {414	/// Create [`CollectionNestingPermission`].415	pub fn new(field: CollectionPermissionField, value: bool) -> Self {416		Self { field, value }417	}418}
after · pallets/common/src/eth.rs
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617//! The module contains a number of functions for converting and checking ethereum identifiers.1819use alloc::format;20use sp_std::{vec, vec::Vec};21use evm_coder::{AbiCoder, types::address};22pub use pallet_evm::{Config, account::CrossAccountId};23use sp_core::{H160, U256};24use up_data_structs::CollectionId;2526// 0x17c4e6453Cc49AAAaEACA894e6D9683e00000001 - collection 127// TODO: Unhardcode prefix28const ETH_COLLECTION_PREFIX: [u8; 16] = [29	0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,30];3132/// Maps the ethereum address of the collection in substrate.33pub fn map_eth_to_id(eth: &H160) -> Option<CollectionId> {34	if eth[0..16] != ETH_COLLECTION_PREFIX {35		return None;36	}37	let mut id_bytes = [0; 4];38	id_bytes.copy_from_slice(&eth[16..20]);39	Some(CollectionId(u32::from_be_bytes(id_bytes)))40}4142/// Maps the substrate collection id in ethereum.43pub fn collection_id_to_address(id: CollectionId) -> H160 {44	let mut out = [0; 20];45	out[0..16].copy_from_slice(&ETH_COLLECTION_PREFIX);46	out[16..20].copy_from_slice(&u32::to_be_bytes(id.0));47	H160(out)48}4950/// Check if the ethereum address is a collection.51pub fn is_collection(address: &H160) -> bool {52	address[0..16] == ETH_COLLECTION_PREFIX53}5455/// Convert `U256` to `CrossAccountId`.56pub fn convert_uint256_to_cross_account<T: Config>(from: U256) -> T::CrossAccountId57where58	T::AccountId: From<[u8; 32]>,59{60	let mut new_admin_arr = [0_u8; 32];61	from.to_big_endian(&mut new_admin_arr);62	let account_id = T::AccountId::from(new_admin_arr);63	T::CrossAccountId::from_sub(account_id)64}6566/// Cross account struct67#[derive(Debug, Default, AbiCoder)]68pub struct CrossAddress {69	pub(crate) eth: address,70	pub(crate) sub: U256,71}7273impl CrossAddress {74	/// Converts `CrossAccountId` to [`CrossAddress`] to be correctly usable with Ethereum.75	pub fn from_sub_cross_account<T>(cross_account_id: &T::CrossAccountId) -> Self76	where77		T: pallet_evm::Config,78		T::AccountId: AsRef<[u8; 32]>,79	{80		if cross_account_id.is_canonical_substrate() {81			Self::from_sub::<T>(cross_account_id.as_sub())82		} else {83			Self {84				eth: *cross_account_id.as_eth(),85				sub: Default::default(),86			}87		}88	}89	/// Creates [`CrossAddress`] from Substrate account.90	pub fn from_sub<T>(account_id: &T::AccountId) -> Self91	where92		T: pallet_evm::Config,93		T::AccountId: AsRef<[u8; 32]>,94	{95		Self {96			eth: Default::default(),97			sub: U256::from_big_endian(account_id.as_ref()),98		}99	}100	/// Converts [`CrossAddress`] to `CrossAccountId`.101	pub fn into_sub_cross_account<T>(&self) -> evm_coder::execution::Result<T::CrossAccountId>102	where103		T: pallet_evm::Config,104		T::AccountId: From<[u8; 32]>,105	{106		if self.eth == Default::default() && self.sub == Default::default() {107			Err("All fields of cross account is zeroed".into())108		} else if self.eth == Default::default() {109			Ok(convert_uint256_to_cross_account::<T>(self.sub))110		} else if self.sub == Default::default() {111			Ok(T::CrossAccountId::from_eth(self.eth))112		} else {113			Err("All fields of cross account is non zeroed".into())114		}115	}116}117118/// Ethereum representation of collection [`PropertyKey`](up_data_structs::PropertyKey) and [`PropertyValue`](up_data_structs::PropertyValue).119#[derive(Debug, Default, AbiCoder)]120pub struct Property {121	key: evm_coder::types::string,122	value: evm_coder::types::bytes,123}124125impl TryFrom<up_data_structs::Property> for Property {126	type Error = evm_coder::execution::Error;127128	fn try_from(from: up_data_structs::Property) -> Result<Self, Self::Error> {129		let key = evm_coder::types::string::from_utf8(from.key.into())130			.map_err(|e| Self::Error::Revert(format!("utf8 conversion error: {}", e)))?;131		let value = evm_coder::types::bytes(from.value.to_vec());132		Ok(Property { key, value })133	}134}135136impl TryInto<up_data_structs::Property> for Property {137	type Error = evm_coder::execution::Error;138139	fn try_into(self) -> Result<up_data_structs::Property, Self::Error> {140		let key = <Vec<u8>>::from(self.key)141			.try_into()142			.map_err(|_| "key too large")?;143144		let value = self.value.0.try_into().map_err(|_| "value too large")?;145146		Ok(up_data_structs::Property { key, value })147	}148}149150/// [`CollectionLimits`](up_data_structs::CollectionLimits) fields representation for EVM.151#[derive(Debug, Default, Clone, Copy, AbiCoder)]152#[repr(u8)]153pub enum CollectionLimitField {154	/// How many tokens can a user have on one account.155	#[default]156	AccountTokenOwnership,157158	/// How many bytes of data are available for sponsorship.159	SponsoredDataSize,160161	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]162	SponsoredDataRateLimit,163164	/// How many tokens can be mined into this collection.165	TokenLimit,166167	/// Timeouts for transfer sponsoring.168	SponsorTransferTimeout,169170	/// Timeout for sponsoring an approval in passed blocks.171	SponsorApproveTimeout,172173	/// Whether the collection owner of the collection can send tokens (which belong to other users).174	OwnerCanTransfer,175176	/// Can the collection owner burn other people's tokens.177	OwnerCanDestroy,178179	/// Is it possible to send tokens from this collection between users.180	TransferEnabled,181}182183/// [`CollectionLimits`](up_data_structs::CollectionLimits) field representation for EVM.184#[derive(Debug, Default, AbiCoder)]185pub struct CollectionLimit {186	field: CollectionLimitField,187	value: Option<U256>,188}189190impl CollectionLimit {191	/// Create [`CollectionLimit`] from field and value.192	pub fn new(field: CollectionLimitField, value: Option<u32>) -> Self {193		Self {194			field,195			value: match value {196				Some(value) => Some(value.into()),197				None => None,198			},199		}200	}201	/// Whether the field contains a value.202	pub fn has_value(&self) -> bool {203		self.value.is_some()204	}205}206207impl TryInto<up_data_structs::CollectionLimits> for CollectionLimit {208	type Error = evm_coder::execution::Error;209210	fn try_into(self) -> Result<up_data_structs::CollectionLimits, Self::Error> {211		let value = self212			.value213			.ok_or::<Self::Error>("can't convert `None` value to boolean".into())?;214		let value = Some(value.try_into().map_err(|error| {215			Self::Error::Revert(format!(216				"can't convert value to u32 \"{}\" because: \"{error}\"",217				value218			))219		})?);220221		let convert_value_to_bool = || match value {222			Some(value) => match value {223				0 => Ok(Some(false)),224				1 => Ok(Some(true)),225				_ => {226					return Err(Self::Error::Revert(format!(227						"can't convert value to boolean \"{value}\""228					)))229				}230			},231			None => Ok(None),232		};233234		let mut limits = up_data_structs::CollectionLimits::default();235		match self.field {236			CollectionLimitField::AccountTokenOwnership => {237				limits.account_token_ownership_limit = value;238			}239			CollectionLimitField::SponsoredDataSize => {240				limits.sponsored_data_size = value;241			}242			CollectionLimitField::SponsoredDataRateLimit => {243				limits.sponsored_data_rate_limit = match value {244					Some(value) => Some(up_data_structs::SponsoringRateLimit::Blocks(value)),245					None => None,246				};247			}248			CollectionLimitField::TokenLimit => {249				limits.token_limit = value;250			}251			CollectionLimitField::SponsorTransferTimeout => {252				limits.sponsor_transfer_timeout = value;253			}254			CollectionLimitField::SponsorApproveTimeout => {255				limits.sponsor_approve_timeout = value;256			}257			CollectionLimitField::OwnerCanTransfer => {258				limits.owner_can_transfer = convert_value_to_bool()?;259			}260			CollectionLimitField::OwnerCanDestroy => {261				limits.owner_can_destroy = convert_value_to_bool()?;262			}263			CollectionLimitField::TransferEnabled => {264				limits.transfers_enabled = convert_value_to_bool()?;265			}266		};267		Ok(limits)268	}269}270271/// Ethereum representation of `NestingPermissions` (see [`up_data_structs::NestingPermissions`]) fields as an enumeration.272#[derive(Default, Debug, Clone, Copy, AbiCoder)]273#[repr(u8)]274pub enum CollectionPermissionField {275	/// Owner of token can nest tokens under it.276	#[default]277	TokenOwner,278279	/// Admin of token collection can nest tokens under token.280	CollectionAdmin,281}282283/// Ethereum representation of TokenPermissions (see [`up_data_structs::PropertyPermission`]) fields as an enumeration.284#[derive(AbiCoder, Copy, Clone, Default, Debug)]285#[repr(u8)]286pub enum TokenPermissionField {287	/// Permission to change the property and property permission. See [`up_data_structs::PropertyPermission::mutable`]288	#[default]289	Mutable,290291	/// Change permission for the collection administrator. See [`up_data_structs::PropertyPermission::token_owner`]292	TokenOwner,293294	/// Permission to change the property for the owner of the token. See [`up_data_structs::PropertyPermission::collection_admin`]295	CollectionAdmin,296}297298/// Ethereum representation of TokenPermissions (see [`up_data_structs::PropertyPermission`]) as an key and value.299#[derive(Debug, Default, AbiCoder)]300pub struct PropertyPermission {301	/// TokenPermission field.302	code: TokenPermissionField,303	/// TokenPermission value.304	value: bool,305}306307impl PropertyPermission {308	/// Make vector of [`PropertyPermission`] from [`up_data_structs::PropertyPermission`].309	pub fn into_vec(pp: up_data_structs::PropertyPermission) -> Vec<Self> {310		vec![311			PropertyPermission {312				code: TokenPermissionField::Mutable,313				value: pp.mutable,314			},315			PropertyPermission {316				code: TokenPermissionField::TokenOwner,317				value: pp.token_owner,318			},319			PropertyPermission {320				code: TokenPermissionField::CollectionAdmin,321				value: pp.collection_admin,322			},323		]324	}325326	/// Make [`up_data_structs::PropertyPermission`] from vector of [`PropertyPermission`].327	pub fn from_vec(permission: Vec<Self>) -> up_data_structs::PropertyPermission {328		let mut token_permission = up_data_structs::PropertyPermission::default();329330		for PropertyPermission { code, value } in permission {331			match code {332				TokenPermissionField::Mutable => token_permission.mutable = value,333				TokenPermissionField::TokenOwner => token_permission.token_owner = value,334				TokenPermissionField::CollectionAdmin => token_permission.collection_admin = value,335			}336		}337		token_permission338	}339}340341/// Ethereum representation of Token Property Permissions.342#[derive(Debug, Default, AbiCoder)]343pub struct TokenPropertyPermission {344	/// Token property key.345	key: evm_coder::types::string,346	/// Token property permissions.347	permissions: Vec<PropertyPermission>,348}349350impl351	From<(352		up_data_structs::PropertyKey,353		up_data_structs::PropertyPermission,354	)> for TokenPropertyPermission355{356	fn from(357		value: (358			up_data_structs::PropertyKey,359			up_data_structs::PropertyPermission,360		),361	) -> Self {362		let (key, permission) = value;363		let key = evm_coder::types::string::from_utf8(key.into_inner())364			.expect("Stored key must be valid");365		let permissions = PropertyPermission::into_vec(permission);366		Self { key, permissions }367	}368}369370impl TokenPropertyPermission {371	/// Convert vector of [`TokenPropertyPermission`] into vector of [`up_data_structs::PropertyKeyPermission`].372	pub fn into_property_key_permissions(373		permissions: Vec<TokenPropertyPermission>,374	) -> evm_coder::execution::Result<Vec<up_data_structs::PropertyKeyPermission>> {375		let mut perms = Vec::new();376377		for TokenPropertyPermission { key, permissions } in permissions {378			let token_permission = PropertyPermission::from_vec(permissions);379380			perms.push(up_data_structs::PropertyKeyPermission {381				key: key.into_bytes().try_into().map_err(|_| "too long key")?,382				permission: token_permission,383			});384		}385		Ok(perms)386	}387}388389/// Nested collections.390#[derive(Debug, Default, AbiCoder)]391pub struct CollectionNesting {392	token_owner: bool,393	ids: Vec<U256>,394}395396impl CollectionNesting {397	/// Create [`CollectionNesting`].398	pub fn new(token_owner: bool, ids: Vec<U256>) -> Self {399		Self { token_owner, ids }400	}401}402403/// Ethereum representation of `NestingPermissions` (see [`up_data_structs::NestingPermissions`]) field.404#[derive(Debug, Default, AbiCoder)]405pub struct CollectionNestingPermission {406	field: CollectionPermissionField,407	value: bool,408}409410impl CollectionNestingPermission {411	/// Create [`CollectionNestingPermission`].412	pub fn new(field: CollectionPermissionField, value: bool) -> Self {413		Self { field, value }414	}415}
modifiedpallets/evm-contract-helpers/src/eth.rsdiffbeforeafterboth
--- a/pallets/evm-contract-helpers/src/eth.rs
+++ b/pallets/evm-contract-helpers/src/eth.rs
@@ -261,7 +261,7 @@
 		&mut self,
 		caller: caller,
 		contract_address: address,
-		fee_limit: uint256,
+		fee_limit: U256,
 	) -> Result<()> {
 		self.recorder().consume_sload()?;
 		self.recorder().consume_sstore()?;
@@ -276,7 +276,7 @@
 	/// @param contractAddress Contract to get sponsoring fee limit of
 	/// @return uint256 Maximum amount of fee that could be spent by single
 	///  transaction
-	fn sponsoring_fee_limit(&self, contract_address: address) -> Result<uint256> {
+	fn sponsoring_fee_limit(&self, contract_address: address) -> Result<U256> {
 		self.recorder().consume_sload()?;
 
 		Ok(get_sponsoring_fee_limit::<T>(contract_address))
@@ -441,7 +441,7 @@
 	}
 }
 
-fn get_sponsoring_fee_limit<T: Config>(contract_address: address) -> uint256 {
+fn get_sponsoring_fee_limit<T: Config>(contract_address: address) -> U256 {
 	<SponsoringFeeLimit<T>>::get(contract_address)
 		.get(&0xffffffff)
 		.cloned()
modifiedpallets/fungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/fungible/src/erc.rs
+++ b/pallets/fungible/src/erc.rs
@@ -32,7 +32,7 @@
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::{call, dispatch_to_evm};
 use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};
-use sp_core::Get;
+use sp_core::{U256, Get};
 
 use crate::{
 	Allowance, Balance, Config, FungibleHandle, Pallet, SelfWeightOf, TotalSupply,
@@ -46,14 +46,14 @@
 		from: address,
 		#[indexed]
 		to: address,
-		value: uint256,
+		value: U256,
 	},
 	Approval {
 		#[indexed]
 		owner: address,
 		#[indexed]
 		spender: address,
-		value: uint256,
+		value: U256,
 	},
 }
 
@@ -67,7 +67,7 @@
 	fn symbol(&self) -> Result<string> {
 		Ok(string::from_utf8_lossy(&self.token_prefix).into())
 	}
-	fn total_supply(&self) -> Result<uint256> {
+	fn total_supply(&self) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		Ok(<TotalSupply<T>>::get(self.id).into())
 	}
@@ -79,14 +79,14 @@
 			unreachable!()
 		})
 	}
-	fn balance_of(&self, owner: address) -> Result<uint256> {
+	fn balance_of(&self, owner: address) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		let owner = T::CrossAccountId::from_eth(owner);
 		let balance = <Balance<T>>::get((self.id, owner));
 		Ok(balance.into())
 	}
 	#[weight(<SelfWeightOf<T>>::transfer())]
-	fn transfer(&mut self, caller: caller, to: address, amount: uint256) -> Result<bool> {
+	fn transfer(&mut self, caller: caller, to: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -104,7 +104,7 @@
 		caller: caller,
 		from: address,
 		to: address,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
@@ -119,7 +119,7 @@
 		Ok(true)
 	}
 	#[weight(<SelfWeightOf<T>>::approve())]
-	fn approve(&mut self, caller: caller, spender: address, amount: uint256) -> Result<bool> {
+	fn approve(&mut self, caller: caller, spender: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let spender = T::CrossAccountId::from_eth(spender);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -128,7 +128,7 @@
 			.map_err(dispatch_to_evm::<T>)?;
 		Ok(true)
 	}
-	fn allowance(&self, owner: address, spender: address) -> Result<uint256> {
+	fn allowance(&self, owner: address, spender: address) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		let owner = T::CrossAccountId::from_eth(owner);
 		let spender = T::CrossAccountId::from_eth(spender);
@@ -148,7 +148,7 @@
 	/// @param to account that will receive minted tokens
 	/// @param amount amount of tokens to mint
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint(&mut self, caller: caller, to: address, amount: uint256) -> Result<bool> {
+	fn mint(&mut self, caller: caller, to: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -178,7 +178,7 @@
 		&mut self,
 		caller: caller,
 		to: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = to.into_sub_cross_account::<T>()?;
@@ -196,7 +196,7 @@
 		&mut self,
 		caller: caller,
 		spender: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let spender = spender.into_sub_cross_account::<T>()?;
@@ -214,7 +214,7 @@
 	/// @param amount The amount that will be burnt.
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::burn_from())]
-	fn burn_from(&mut self, caller: caller, from: address, amount: uint256) -> Result<bool> {
+	fn burn_from(&mut self, caller: caller, from: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -237,7 +237,7 @@
 		&mut self,
 		caller: caller,
 		from: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
@@ -254,7 +254,7 @@
 	/// Mint tokens for multiple accounts.
 	/// @param amounts array of pairs of account address and amount
 	#[weight(<SelfWeightOf<T>>::create_multiple_items_ex(amounts.len() as u32))]
-	fn mint_bulk(&mut self, caller: caller, amounts: Vec<(address, uint256)>) -> Result<bool> {
+	fn mint_bulk(&mut self, caller: caller, amounts: Vec<(address, U256)>) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let budget = self
 			.recorder
@@ -279,7 +279,7 @@
 		&mut self,
 		caller: caller,
 		to: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = to.into_sub_cross_account::<T>()?;
@@ -298,7 +298,7 @@
 		caller: caller,
 		from: pallet_common::eth::CrossAddress,
 		to: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
modifiedpallets/nonfungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -43,7 +43,7 @@
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::call;
 use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};
-use sp_core::Get;
+use sp_core::{U256, Get};
 
 use crate::{
 	AccountBalance, Config, CreateItemData, NonfungibleHandle, Pallet, TokenData, TokensMinted,
@@ -122,7 +122,7 @@
 	fn set_property(
 		&mut self,
 		caller: caller,
-		token_id: uint256,
+		token_id: U256,
 		key: string,
 		value: bytes,
 	) -> Result<()> {
@@ -155,7 +155,7 @@
 	fn set_properties(
 		&mut self,
 		caller: caller,
-		token_id: uint256,
+		token_id: U256,
 		properties: Vec<eth::Property>,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
@@ -187,7 +187,7 @@
 	/// @param key Property key.
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::delete_token_properties(1))]
-	fn delete_property(&mut self, token_id: uint256, caller: caller, key: string) -> Result<()> {
+	fn delete_property(&mut self, token_id: U256, caller: caller, key: string) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 		let key = <Vec<u8>>::from(key)
@@ -209,7 +209,7 @@
 	#[weight(<SelfWeightOf<T>>::delete_token_properties(keys.len() as u32))]
 	fn delete_properties(
 		&mut self,
-		token_id: uint256,
+		token_id: U256,
 		caller: caller,
 		keys: Vec<string>,
 	) -> Result<()> {
@@ -239,7 +239,7 @@
 	/// @param tokenId ID of the token.
 	/// @param key Property key.
 	/// @return Property value bytes
-	fn property(&self, token_id: uint256, key: string) -> Result<bytes> {
+	fn property(&self, token_id: U256, key: string) -> Result<bytes> {
 		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 		let key = <Vec<u8>>::from(key)
 			.try_into()
@@ -265,7 +265,7 @@
 		#[indexed]
 		to: address,
 		#[indexed]
-		token_id: uint256,
+		token_id: U256,
 	},
 	/// @dev This emits when the approved address for an NFT is changed or
 	///  reaffirmed. The zero address indicates there is no approved address.
@@ -277,7 +277,7 @@
 		#[indexed]
 		approved: address,
 		#[indexed]
-		token_id: uint256,
+		token_id: U256,
 	},
 	/// @dev This emits when an operator is enabled or disabled for an owner.
 	///  The operator can manage all NFTs of the owner.
@@ -322,7 +322,7 @@
 	///
 	/// @return token's const_metadata
 	#[solidity(rename_selector = "tokenURI")]
-	fn token_uri(&self, token_id: uint256) -> Result<string> {
+	fn token_uri(&self, token_id: U256) -> Result<string> {
 		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 
 		match get_token_property(self, token_id_u32, &key::url()).as_deref() {
@@ -368,12 +368,12 @@
 	/// @param index A counter less than `totalSupply()`
 	/// @return The token identifier for the `index`th NFT,
 	///  (sort order not specified)
-	fn token_by_index(&self, index: uint256) -> Result<uint256> {
+	fn token_by_index(&self, index: U256) -> Result<U256> {
 		Ok(index)
 	}
 
 	/// @dev Not implemented
-	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {
+	fn token_of_owner_by_index(&self, _owner: address, _index: U256) -> Result<U256> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -381,7 +381,7 @@
 	/// @notice Count NFTs tracked by this contract
 	/// @return A count of valid NFTs tracked by this contract, where each one of
 	///  them has an assigned and queryable owner not equal to the zero address
-	fn total_supply(&self) -> Result<uint256> {
+	fn total_supply(&self) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		Ok(<Pallet<T>>::total_supply(self).into())
 	}
@@ -396,7 +396,7 @@
 	///  function throws for queries about the zero address.
 	/// @param owner An address for whom to query the balance
 	/// @return The number of NFTs owned by `owner`, possibly zero
-	fn balance_of(&self, owner: address) -> Result<uint256> {
+	fn balance_of(&self, owner: address) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		let owner = T::CrossAccountId::from_eth(owner);
 		let balance = <AccountBalance<T>>::get((self.id, owner));
@@ -407,7 +407,7 @@
 	///  about them do throw.
 	/// @param tokenId The identifier for an NFT
 	/// @return The address of the owner of the NFT
-	fn owner_of(&self, token_id: uint256) -> Result<address> {
+	fn owner_of(&self, token_id: U256) -> Result<address> {
 		self.consume_store_reads(1)?;
 		let token: TokenId = token_id.try_into()?;
 		Ok(*<TokenData<T>>::get((self.id, token))
@@ -421,19 +421,14 @@
 		&mut self,
 		_from: address,
 		_to: address,
-		_token_id: uint256,
+		_token_id: U256,
 		_data: bytes,
 	) -> Result<()> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
 	/// @dev Not implemented
-	fn safe_transfer_from(
-		&mut self,
-		_from: address,
-		_to: address,
-		_token_id: uint256,
-	) -> Result<()> {
+	fn safe_transfer_from(&mut self, _from: address, _to: address, _token_id: U256) -> Result<()> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -453,7 +448,7 @@
 		caller: caller,
 		from: address,
 		to: address,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
@@ -475,7 +470,7 @@
 	/// @param approved The new approved NFT controller
 	/// @param tokenId The NFT to approve
 	#[weight(<SelfWeightOf<T>>::approve())]
-	fn approve(&mut self, caller: caller, approved: address, token_id: uint256) -> Result<()> {
+	fn approve(&mut self, caller: caller, approved: address, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let approved = T::CrossAccountId::from_eth(approved);
 		let token = token_id.try_into()?;
@@ -505,7 +500,7 @@
 	}
 
 	/// @dev Not implemented
-	fn get_approved(&self, _token_id: uint256) -> Result<address> {
+	fn get_approved(&self, _token_id: U256) -> Result<address> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -528,7 +523,7 @@
 	///  operator of the current owner.
 	/// @param tokenId The NFT to approve
 	#[weight(<SelfWeightOf<T>>::burn_item())]
-	fn burn(&mut self, caller: caller, token_id: uint256) -> Result<()> {
+	fn burn(&mut self, caller: caller, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let token = token_id.try_into()?;
 
@@ -544,8 +539,8 @@
 	/// @param to The new owner
 	/// @return uint256 The id of the newly minted token
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {
-		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+	fn mint(&mut self, caller: caller, to: address) -> Result<U256> {
+		let token_id: U256 = <TokensMinted<T>>::get(self.id)
 			.checked_add(1)
 			.ok_or("item id overflow")?
 			.into();
@@ -560,7 +555,7 @@
 	/// @param tokenId ID of the minted NFT
 	#[solidity(hide, rename_selector = "mint")]
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {
+	fn mint_check_id(&mut self, caller: caller, to: address, token_id: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token_id: u32 = token_id.try_into()?;
@@ -601,8 +596,8 @@
 		caller: caller,
 		to: address,
 		token_uri: string,
-	) -> Result<uint256> {
-		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+	) -> Result<U256> {
+		let token_id: U256 = <TokensMinted<T>>::get(self.id)
 			.checked_add(1)
 			.ok_or("item id overflow")?
 			.into();
@@ -622,7 +617,7 @@
 		&mut self,
 		caller: caller,
 		to: address,
-		token_id: uint256,
+		token_id: U256,
 		token_uri: string,
 	) -> Result<bool> {
 		let key = key::url();
@@ -730,7 +725,7 @@
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
-	fn cross_owner_of(&self, token_id: uint256) -> Result<eth::CrossAddress> {
+	fn cross_owner_of(&self, token_id: U256) -> Result<eth::CrossAddress> {
 		Self::token_owner(&self, token_id.try_into()?)
 			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))
 			.ok_or(Error::Revert("key too large".into()))
@@ -741,7 +736,7 @@
 	/// @param tokenId Id for the token.
 	/// @param keys Properties keys. Empty keys for all propertyes.
 	/// @return Vector of properties key/value pairs.
-	fn properties(&self, token_id: uint256, keys: Vec<string>) -> Result<Vec<eth::Property>> {
+	fn properties(&self, token_id: U256, keys: Vec<string>) -> Result<Vec<eth::Property>> {
 		let keys = keys
 			.into_iter()
 			.map(|key| {
@@ -772,7 +767,7 @@
 		&mut self,
 		caller: caller,
 		approved: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let approved = approved.into_sub_cross_account::<T>()?;
@@ -789,7 +784,7 @@
 	/// @param to The new owner
 	/// @param tokenId The NFT to transfer
 	#[weight(<SelfWeightOf<T>>::transfer())]
-	fn transfer(&mut self, caller: caller, to: address, token_id: uint256) -> Result<()> {
+	fn transfer(&mut self, caller: caller, to: address, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token = token_id.try_into()?;
@@ -811,7 +806,7 @@
 		&mut self,
 		caller: caller,
 		to: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = to.into_sub_cross_account::<T>()?;
@@ -836,7 +831,7 @@
 		caller: caller,
 		from: eth::CrossAddress,
 		to: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
@@ -858,7 +853,7 @@
 	/// @param tokenId The NFT to transfer
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::burn_from())]
-	fn burn_from(&mut self, caller: caller, from: address, token_id: uint256) -> Result<()> {
+	fn burn_from(&mut self, caller: caller, from: address, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
 		let token = token_id.try_into()?;
@@ -882,7 +877,7 @@
 		&mut self,
 		caller: caller,
 		from: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
@@ -897,7 +892,7 @@
 	}
 
 	/// @notice Returns next free NFT ID.
-	fn next_token_id(&self) -> Result<uint256> {
+	fn next_token_id(&self) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		Ok(<TokensMinted<T>>::get(self.id)
 			.checked_add(1)
@@ -912,7 +907,7 @@
 	/// @param tokenIds IDs of the minted NFTs
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]
-	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {
+	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<U256>) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let mut expected_index = <TokensMinted<T>>::get(self.id)
@@ -953,7 +948,7 @@
 		&mut self,
 		caller: caller,
 		to: address,
-		tokens: Vec<(uint256, string)>,
+		tokens: Vec<(U256, string)>,
 	) -> Result<bool> {
 		let key = key::url();
 		let caller = T::CrossAccountId::from_eth(caller);
@@ -1005,7 +1000,7 @@
 		caller: caller,
 		to: eth::CrossAddress,
 		properties: Vec<eth::Property>,
-	) -> Result<uint256> {
+	) -> Result<U256> {
 		let token_id = <TokensMinted<T>>::get(self.id)
 			.checked_add(1)
 			.ok_or("item id overflow")?;
modifiedpallets/refungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -39,7 +39,7 @@
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::{call, dispatch_to_evm};
 use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};
-use sp_core::{H160, Get};
+use sp_core::{H160, U256, Get};
 use sp_std::{collections::btree_map::BTreeMap, vec::Vec, vec};
 use up_data_structs::{
 	CollectionId, CollectionPropertiesVec, mapping::TokenAddressMapping, Property, PropertyKey,
@@ -125,7 +125,7 @@
 	fn set_property(
 		&mut self,
 		caller: caller,
-		token_id: uint256,
+		token_id: U256,
 		key: string,
 		value: bytes,
 	) -> Result<()> {
@@ -158,7 +158,7 @@
 	fn set_properties(
 		&mut self,
 		caller: caller,
-		token_id: uint256,
+		token_id: U256,
 		properties: Vec<eth::Property>,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
@@ -190,7 +190,7 @@
 	/// @param key Property key.
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::delete_token_properties(1))]
-	fn delete_property(&mut self, token_id: uint256, caller: caller, key: string) -> Result<()> {
+	fn delete_property(&mut self, token_id: U256, caller: caller, key: string) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 		let key = <Vec<u8>>::from(key)
@@ -212,7 +212,7 @@
 	#[weight(<SelfWeightOf<T>>::delete_token_properties(keys.len() as u32))]
 	fn delete_properties(
 		&mut self,
-		token_id: uint256,
+		token_id: U256,
 		caller: caller,
 		keys: Vec<string>,
 	) -> Result<()> {
@@ -242,7 +242,7 @@
 	/// @param tokenId ID of the token.
 	/// @param key Property key.
 	/// @return Property value bytes
-	fn property(&self, token_id: uint256, key: string) -> Result<bytes> {
+	fn property(&self, token_id: U256, key: string) -> Result<bytes> {
 		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 		let key = <Vec<u8>>::from(key)
 			.try_into()
@@ -266,7 +266,7 @@
 		#[indexed]
 		to: address,
 		#[indexed]
-		token_id: uint256,
+		token_id: U256,
 	},
 	/// @dev Not supported
 	Approval {
@@ -275,7 +275,7 @@
 		#[indexed]
 		approved: address,
 		#[indexed]
-		token_id: uint256,
+		token_id: U256,
 	},
 	/// @dev Not supported
 	#[allow(dead_code)]
@@ -319,7 +319,7 @@
 	///
 	/// @return token's const_metadata
 	#[solidity(rename_selector = "tokenURI")]
-	fn token_uri(&self, token_id: uint256) -> Result<string> {
+	fn token_uri(&self, token_id: U256) -> Result<string> {
 		let token_id_u32: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 
 		match get_token_property(self, token_id_u32, &key::url()).as_deref() {
@@ -365,12 +365,12 @@
 	/// @param index A counter less than `totalSupply()`
 	/// @return The token identifier for the `index`th NFT,
 	///  (sort order not specified)
-	fn token_by_index(&self, index: uint256) -> Result<uint256> {
+	fn token_by_index(&self, index: U256) -> Result<U256> {
 		Ok(index)
 	}
 
 	/// Not implemented
-	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {
+	fn token_of_owner_by_index(&self, _owner: address, _index: U256) -> Result<U256> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -378,7 +378,7 @@
 	/// @notice Count RFTs tracked by this contract
 	/// @return A count of valid RFTs tracked by this contract, where each one of
 	///  them has an assigned and queryable owner not equal to the zero address
-	fn total_supply(&self) -> Result<uint256> {
+	fn total_supply(&self) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		Ok(<Pallet<T>>::total_supply(self).into())
 	}
@@ -393,7 +393,7 @@
 	///  function throws for queries about the zero address.
 	/// @param owner An address for whom to query the balance
 	/// @return The number of RFTs owned by `owner`, possibly zero
-	fn balance_of(&self, owner: address) -> Result<uint256> {
+	fn balance_of(&self, owner: address) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		let owner = T::CrossAccountId::from_eth(owner);
 		let balance = <AccountBalance<T>>::get((self.id, owner));
@@ -407,7 +407,7 @@
 	///  the tokens that are partially owned.
 	/// @param tokenId The identifier for an RFT
 	/// @return The address of the owner of the RFT
-	fn owner_of(&self, token_id: uint256) -> Result<address> {
+	fn owner_of(&self, token_id: U256) -> Result<address> {
 		self.consume_store_reads(2)?;
 		let token = token_id.try_into()?;
 		let owner = <Pallet<T>>::token_owner(self.id, token);
@@ -422,7 +422,7 @@
 		&mut self,
 		_from: address,
 		_to: address,
-		_token_id: uint256,
+		_token_id: U256,
 		_data: bytes,
 	) -> Result<()> {
 		// TODO: Not implemetable
@@ -431,12 +431,7 @@
 
 	/// @dev Not implemented
 	#[solidity(rename_selector = "safeTransferFrom")]
-	fn safe_transfer_from(
-		&mut self,
-		_from: address,
-		_to: address,
-		_token_id: uint256,
-	) -> Result<()> {
+	fn safe_transfer_from(&mut self, _from: address, _to: address, _token_id: U256) -> Result<()> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -457,7 +452,7 @@
 		caller: caller,
 		from: address,
 		to: address,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
@@ -477,7 +472,7 @@
 	}
 
 	/// @dev Not implemented
-	fn approve(&mut self, _caller: caller, _approved: address, _token_id: uint256) -> Result<()> {
+	fn approve(&mut self, _caller: caller, _approved: address, _token_id: U256) -> Result<()> {
 		Err("not implemented".into())
 	}
 
@@ -501,7 +496,7 @@
 	}
 
 	/// @dev Not implemented
-	fn get_approved(&self, _token_id: uint256) -> Result<address> {
+	fn get_approved(&self, _token_id: U256) -> Result<address> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -556,7 +551,7 @@
 	///  operator of the current owner.
 	/// @param tokenId The RFT to approve
 	#[weight(<SelfWeightOf<T>>::burn_item_fully())]
-	fn burn(&mut self, caller: caller, token_id: uint256) -> Result<()> {
+	fn burn(&mut self, caller: caller, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let token = token_id.try_into()?;
 
@@ -575,8 +570,8 @@
 	/// @param to The new owner
 	/// @return uint256 The id of the newly minted token
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint(&mut self, caller: caller, to: address) -> Result<uint256> {
-		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+	fn mint(&mut self, caller: caller, to: address) -> Result<U256> {
+		let token_id: U256 = <TokensMinted<T>>::get(self.id)
 			.checked_add(1)
 			.ok_or("item id overflow")?
 			.into();
@@ -591,7 +586,7 @@
 	/// @param tokenId ID of the minted RFT
 	#[solidity(hide, rename_selector = "mint")]
 	#[weight(<SelfWeightOf<T>>::create_item())]
-	fn mint_check_id(&mut self, caller: caller, to: address, token_id: uint256) -> Result<bool> {
+	fn mint_check_id(&mut self, caller: caller, to: address, token_id: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token_id: u32 = token_id.try_into()?;
@@ -637,8 +632,8 @@
 		caller: caller,
 		to: address,
 		token_uri: string,
-	) -> Result<uint256> {
-		let token_id: uint256 = <TokensMinted<T>>::get(self.id)
+	) -> Result<U256> {
+		let token_id: U256 = <TokensMinted<T>>::get(self.id)
 			.checked_add(1)
 			.ok_or("item id overflow")?
 			.into();
@@ -658,7 +653,7 @@
 		&mut self,
 		caller: caller,
 		to: address,
-		token_id: uint256,
+		token_id: U256,
 		token_uri: string,
 	) -> Result<bool> {
 		let key = key::url();
@@ -768,7 +763,7 @@
 	/// Returns the owner (in cross format) of the token.
 	///
 	/// @param tokenId Id for the token.
-	fn cross_owner_of(&self, token_id: uint256) -> Result<eth::CrossAddress> {
+	fn cross_owner_of(&self, token_id: U256) -> Result<eth::CrossAddress> {
 		Self::token_owner(&self, token_id.try_into()?)
 			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))
 			.ok_or(Error::Revert("key too large".into()))
@@ -779,7 +774,7 @@
 	/// @param tokenId Id for the token.
 	/// @param keys Properties keys. Empty keys for all propertyes.
 	/// @return Vector of properties key/value pairs.
-	fn properties(&self, token_id: uint256, keys: Vec<string>) -> Result<Vec<eth::Property>> {
+	fn properties(&self, token_id: U256, keys: Vec<string>) -> Result<Vec<eth::Property>> {
 		let keys = keys
 			.into_iter()
 			.map(|key| {
@@ -805,7 +800,7 @@
 	/// @param to The new owner
 	/// @param tokenId The RFT to transfer
 	#[weight(<SelfWeightOf<T>>::transfer_creating_removing())]
-	fn transfer(&mut self, caller: caller, to: address, token_id: uint256) -> Result<()> {
+	fn transfer(&mut self, caller: caller, to: address, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token = token_id.try_into()?;
@@ -832,7 +827,7 @@
 		&mut self,
 		caller: caller,
 		to: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = to.into_sub_cross_account::<T>()?;
@@ -861,7 +856,7 @@
 		caller: caller,
 		from: eth::CrossAddress,
 		to: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
@@ -888,7 +883,7 @@
 	/// @param tokenId The RFT to transfer
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::burn_from())]
-	fn burn_from(&mut self, caller: caller, from: address, token_id: uint256) -> Result<()> {
+	fn burn_from(&mut self, caller: caller, from: address, token_id: U256) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
 		let token = token_id.try_into()?;
@@ -916,7 +911,7 @@
 		&mut self,
 		caller: caller,
 		from: eth::CrossAddress,
-		token_id: uint256,
+		token_id: U256,
 	) -> Result<()> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
@@ -934,7 +929,7 @@
 	}
 
 	/// @notice Returns next free RFT ID.
-	fn next_token_id(&self) -> Result<uint256> {
+	fn next_token_id(&self) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		Ok(<TokensMinted<T>>::get(self.id)
 			.checked_add(1)
@@ -949,7 +944,7 @@
 	/// @param tokenIds IDs of the minted RFTs
 	#[solidity(hide)]
 	#[weight(<SelfWeightOf<T>>::create_multiple_items(token_ids.len() as u32))]
-	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<uint256>) -> Result<bool> {
+	fn mint_bulk(&mut self, caller: caller, to: address, token_ids: Vec<U256>) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let mut expected_index = <TokensMinted<T>>::get(self.id)
@@ -996,7 +991,7 @@
 		&mut self,
 		caller: caller,
 		to: address,
-		tokens: Vec<(uint256, string)>,
+		tokens: Vec<(U256, string)>,
 	) -> Result<bool> {
 		let key = key::url();
 		let caller = T::CrossAccountId::from_eth(caller);
@@ -1054,7 +1049,7 @@
 		caller: caller,
 		to: eth::CrossAddress,
 		properties: Vec<eth::Property>,
-	) -> Result<uint256> {
+	) -> Result<U256> {
 		let token_id = <TokensMinted<T>>::get(self.id)
 			.checked_add(1)
 			.ok_or("item id overflow")?;
@@ -1093,7 +1088,7 @@
 	/// Returns EVM address for refungible token
 	///
 	/// @param token ID of the token
-	fn token_contract_address(&self, token: uint256) -> Result<address> {
+	fn token_contract_address(&self, token: U256) -> Result<address> {
 		Ok(T::EvmTokenAddressMapping::token_to_address(
 			self.id,
 			token.try_into().map_err(|_| "token id overflow")?,
modifiedpallets/refungible/src/erc_token.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc_token.rs
+++ b/pallets/refungible/src/erc_token.rs
@@ -37,6 +37,7 @@
 use pallet_evm_coder_substrate::{call, dispatch_to_evm, WithRecorder};
 use pallet_structure::{SelfWeightOf as StructureWeight, weights::WeightInfo as _};
 use sp_std::vec::Vec;
+use sp_core::U256;
 use up_data_structs::TokenId;
 
 use crate::{
@@ -55,7 +56,7 @@
 		Ok(collection_id_to_address(self.id))
 	}
 
-	fn parent_token_id(&self) -> Result<uint256> {
+	fn parent_token_id(&self) -> Result<U256> {
 		Ok(self.1.into())
 	}
 }
@@ -71,7 +72,7 @@
 		from: address,
 		#[indexed]
 		to: address,
-		value: uint256,
+		value: U256,
 	},
 	/// @dev This event is emitted when the amount of tokens (value) is approved
 	/// by the owner to be used by the spender.
@@ -80,7 +81,7 @@
 		owner: address,
 		#[indexed]
 		spender: address,
-		value: uint256,
+		value: U256,
 	},
 }
 
@@ -103,7 +104,7 @@
 	}
 
 	/// @dev Total number of tokens in existence
-	fn total_supply(&self) -> Result<uint256> {
+	fn total_supply(&self) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		Ok(<TotalSupply<T>>::get((self.id, self.1)).into())
 	}
@@ -117,7 +118,7 @@
 	/// @dev Gets the balance of the specified address.
 	/// @param owner The address to query the balance of.
 	/// @return An uint256 representing the amount owned by the passed address.
-	fn balance_of(&self, owner: address) -> Result<uint256> {
+	fn balance_of(&self, owner: address) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		let owner = T::CrossAccountId::from_eth(owner);
 		let balance = <Balance<T>>::get((self.id, self.1, owner));
@@ -128,7 +129,7 @@
 	/// @param to The address to transfer to.
 	/// @param amount The amount to be transferred.
 	#[weight(<CommonWeights<T>>::transfer())]
-	fn transfer(&mut self, caller: caller, to: address, amount: uint256) -> Result<bool> {
+	fn transfer(&mut self, caller: caller, to: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -151,7 +152,7 @@
 		caller: caller,
 		from: address,
 		to: address,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
@@ -174,7 +175,7 @@
 	/// @param spender The address which will spend the funds.
 	/// @param amount The amount of tokens to be spent.
 	#[weight(<SelfWeightOf<T>>::approve())]
-	fn approve(&mut self, caller: caller, spender: address, amount: uint256) -> Result<bool> {
+	fn approve(&mut self, caller: caller, spender: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let spender = T::CrossAccountId::from_eth(spender);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -188,7 +189,7 @@
 	/// @param owner address The address which owns the funds.
 	/// @param spender address The address which will spend the funds.
 	/// @return A uint256 specifying the amount of tokens still available for the spender.
-	fn allowance(&self, owner: address, spender: address) -> Result<uint256> {
+	fn allowance(&self, owner: address, spender: address) -> Result<U256> {
 		self.consume_store_reads(1)?;
 		let owner = T::CrossAccountId::from_eth(owner);
 		let spender = T::CrossAccountId::from_eth(spender);
@@ -208,7 +209,7 @@
 	/// @param amount The amount that will be burnt.
 	#[weight(<SelfWeightOf<T>>::burn_from())]
 	#[solidity(hide)]
-	fn burn_from(&mut self, caller: caller, from: address, amount: uint256) -> Result<bool> {
+	fn burn_from(&mut self, caller: caller, from: address, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = T::CrossAccountId::from_eth(from);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
@@ -230,7 +231,7 @@
 		&mut self,
 		caller: caller,
 		from: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
@@ -256,7 +257,7 @@
 		&mut self,
 		caller: caller,
 		spender: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let spender = spender.into_sub_cross_account::<T>()?;
@@ -270,7 +271,7 @@
 	///  Throws if `msg.sender` doesn't owns all of the tokens.
 	/// @param amount New total amount of the tokens.
 	#[weight(<SelfWeightOf<T>>::repartition_item())]
-	fn repartition(&mut self, caller: caller, amount: uint256) -> Result<bool> {
+	fn repartition(&mut self, caller: caller, amount: U256) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
 
@@ -286,7 +287,7 @@
 		&mut self,
 		caller: caller,
 		to: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = to.into_sub_cross_account::<T>()?;
@@ -310,7 +311,7 @@
 		caller: caller,
 		from: pallet_common::eth::CrossAddress,
 		to: pallet_common::eth::CrossAddress,
-		amount: uint256,
+		amount: U256,
 	) -> Result<bool> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let from = from.into_sub_cross_account::<T>()?;
modifiedtests/src/eth/abi/nonFungible.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/nonFungible.json
+++ b/tests/src/eth/abi/nonFungible.json
@@ -51,6 +51,12 @@
   },
   {
     "anonymous": false,
+    "inputs": [],
+    "name": "MintingFinished",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
     "inputs": [
       {
         "indexed": true,
@@ -417,6 +423,13 @@
     "type": "function"
   },
   {
+    "inputs": [],
+    "name": "finishMinting",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [
       { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
     ],
@@ -504,6 +517,13 @@
   },
   {
     "inputs": [],
+    "name": "mintingFinished",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
     "name": "name",
     "outputs": [{ "internalType": "string", "name": "", "type": "string" }],
     "stateMutability": "view",
modifiedtests/src/eth/abi/reFungible.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/reFungible.json
+++ b/tests/src/eth/abi/reFungible.json
@@ -51,6 +51,12 @@
   },
   {
     "anonymous": false,
+    "inputs": [],
+    "name": "MintingFinished",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
     "inputs": [
       {
         "indexed": true,
@@ -399,6 +405,13 @@
     "type": "function"
   },
   {
+    "inputs": [],
+    "name": "finishMinting",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
     "inputs": [
       { "internalType": "uint256", "name": "tokenId", "type": "uint256" }
     ],
@@ -486,6 +499,13 @@
   },
   {
     "inputs": [],
+    "name": "mintingFinished",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
     "name": "name",
     "outputs": [{ "internalType": "string", "name": "", "type": "string" }],
     "stateMutability": "view",
modifiedtests/src/eth/abi/reFungibleToken.jsondiffbeforeafterboth
--- a/tests/src/eth/abi/reFungibleToken.json
+++ b/tests/src/eth/abi/reFungibleToken.json
@@ -98,6 +98,16 @@
   },
   {
     "inputs": [
+      { "internalType": "address", "name": "from", "type": "address" },
+      { "internalType": "uint256", "name": "amount", "type": "uint256" }
+    ],
+    "name": "burnFrom",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
       {
         "components": [
           { "internalType": "address", "name": "eth", "type": "address" },