git.delta.rocks / unique-network / refs/commits / 06c6a41ee252

difftreelog

doc

Trubnikov Sergey2022-07-28parent: #26c4de6.patch.diff
in: master

4 files changed

modifiedprimitives/data-structs/src/bounded.rsdiffbeforeafterboth
--- a/primitives/data-structs/src/bounded.rs
+++ b/primitives/data-structs/src/bounded.rs
@@ -1,3 +1,21 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+//! This module contins implementations for support bounded structures in [`serde`].
+
 use core::fmt;
 use sp_std::collections::{btree_map::BTreeMap, btree_set::BTreeSet};
 use sp_std::vec::Vec;
@@ -7,7 +25,7 @@
 	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},
 };
 
-/// BoundedVec doesn't supports serde
+/// [`serde`] implementations for [`BoundedVec`].
 #[cfg(feature = "serde1")]
 pub mod vec_serde {
 	use core::convert::TryFrom;
@@ -39,6 +57,7 @@
 	}
 }
 
+/// Format [`BoundedVec`] for debug output.
 pub fn vec_debug<V, S>(v: &BoundedVec<V, S>, f: &mut fmt::Formatter) -> Result<(), fmt::Error>
 where
 	V: fmt::Debug,
@@ -49,6 +68,7 @@
 
 #[cfg(feature = "serde1")]
 #[allow(dead_code)]
+/// [`serde`] implementations for [`BoundedBTreeMap`].
 pub mod map_serde {
 	use core::convert::TryFrom;
 	use sp_std::collections::btree_map::BTreeMap;
@@ -84,6 +104,7 @@
 	}
 }
 
+/// Format [`BoundedBTreeMap`] for debug output.
 pub fn map_debug<K, V, S>(
 	v: &BoundedBTreeMap<K, V, S>,
 	f: &mut fmt::Formatter,
@@ -98,6 +119,7 @@
 
 #[cfg(feature = "serde1")]
 #[allow(dead_code)]
+/// [`serde`] implementations for [`BoundedBTreeSet`].
 pub mod set_serde {
 	use core::convert::TryFrom;
 	use sp_std::collections::btree_set::BTreeSet;
@@ -129,6 +151,7 @@
 	}
 }
 
+/// Format [`BoundedBTreeSet`] for debug output.
 pub fn set_debug<K, S>(v: &BoundedBTreeSet<K, S>, f: &mut fmt::Formatter) -> Result<(), fmt::Error>
 where
 	K: fmt::Debug + Ord,
modifiedprimitives/data-structs/src/lib.rsdiffbeforeafterboth
before · primitives/data-structs/src/lib.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#![cfg_attr(not(feature = "std"), no_std)]1819use core::{20	convert::{TryFrom, TryInto},21	fmt,22};23use frame_support::{24	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},25	traits::Get,26	parameter_types,27};2829#[cfg(feature = "serde")]30use serde::{Serialize, Deserialize};3132use sp_core::U256;33use sp_runtime::{ArithmeticError, sp_std::prelude::Vec, Permill};34use codec::{Decode, Encode, EncodeLike, MaxEncodedLen};35use frame_support::{BoundedVec, traits::ConstU32};36use derivative::Derivative;37use scale_info::TypeInfo;3839// RMRK40use rmrk_traits::{41	CollectionInfo, NftInfo, ResourceInfo, PropertyInfo, BaseInfo, PartType, Theme, ThemeProperty,42	ResourceTypes, BasicResource, ComposableResource, SlotResource, EquippableList,43};44pub use rmrk_traits::{45	primitives::{46		CollectionId as RmrkCollectionId, NftId as RmrkNftId, BaseId as RmrkBaseId,47		SlotId as RmrkSlotId, PartId as RmrkPartId, ResourceId as RmrkResourceId,48	},49	NftChild as RmrkNftChild, AccountIdOrCollectionNftTuple as RmrkAccountIdOrCollectionNftTuple,50	FixedPart as RmrkFixedPart, SlotPart as RmrkSlotPart,51};5253mod bounded;54pub mod budget;55pub mod mapping;56mod migration;5758/// Maximum of decimal points.59pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;6061/// Maximum pieces for refungible token.62pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;63pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;6465/// Maximum tokens for user.66pub const MAX_TOKEN_OWNERSHIP: u32 = if cfg!(not(feature = "limit-testing")) {67	100_00068} else {69	1070};7172/// Maximum for collections can be created.73pub const COLLECTION_NUMBER_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {74	100_00075} else {76	1077};7879/// Maximum for various custom data of token.80pub const CUSTOM_DATA_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {81	204882} else {83	1084};85pub const COLLECTION_ADMINS_LIMIT: u32 = 5;86pub const COLLECTION_TOKEN_LIMIT: u32 = u32::MAX;87pub const ACCOUNT_TOKEN_OWNERSHIP_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {88	1_000_00089} else {90	1091};9293// Timeouts for item types in passed blocks94pub const NFT_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;95pub const FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;96pub const REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;9798pub const SPONSOR_APPROVE_TIMEOUT: u32 = 5;99100// Schema limits101pub const OFFCHAIN_SCHEMA_LIMIT: u32 = 8192;102pub const VARIABLE_ON_CHAIN_SCHEMA_LIMIT: u32 = 8192;103pub const CONST_ON_CHAIN_SCHEMA_LIMIT: u32 = 32768;104105pub const COLLECTION_FIELD_LIMIT: u32 = CONST_ON_CHAIN_SCHEMA_LIMIT;106107pub const MAX_COLLECTION_NAME_LENGTH: u32 = 64;108pub const MAX_COLLECTION_DESCRIPTION_LENGTH: u32 = 256;109pub const MAX_TOKEN_PREFIX_LENGTH: u32 = 16;110111pub const MAX_PROPERTY_KEY_LENGTH: u32 = 256;112pub const MAX_PROPERTY_VALUE_LENGTH: u32 = 32768;113pub const MAX_PROPERTIES_PER_ITEM: u32 = 64;114115pub const MAX_AUX_PROPERTY_VALUE_LENGTH: u32 = 2048;116117pub const MAX_COLLECTION_PROPERTIES_SIZE: u32 = 40960;118pub const MAX_TOKEN_PROPERTIES_SIZE: u32 = 32768;119120/// How much items can be created per single121/// create_many call122pub const MAX_ITEMS_PER_BATCH: u32 = 200;123124/// Used for limit bounded types of token custom data.125pub type CustomDataLimit = ConstU32<CUSTOM_DATA_LIMIT>;126127/// Collection id.128#[derive(129	Encode,130	Decode,131	PartialEq,132	Eq,133	PartialOrd,134	Ord,135	Clone,136	Copy,137	Debug,138	Default,139	TypeInfo,140	MaxEncodedLen,141)]142#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]143pub struct CollectionId(pub u32);144impl EncodeLike<u32> for CollectionId {}145impl EncodeLike<CollectionId> for u32 {}146147/// Token id148#[derive(149	Encode,150	Decode,151	PartialEq,152	Eq,153	PartialOrd,154	Ord,155	Clone,156	Copy,157	Debug,158	Default,159	TypeInfo,160	MaxEncodedLen,161)]162#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]163pub struct TokenId(pub u32);164impl EncodeLike<u32> for TokenId {}165impl EncodeLike<TokenId> for u32 {}166167impl TokenId {168	/// Try to get next token id.169	/// 170	/// If next id cause overflow, then [`ArithmeticError::Overflow`] returned.171	pub fn try_next(self) -> Result<TokenId, ArithmeticError> {172		self.0173			.checked_add(1)174			.ok_or(ArithmeticError::Overflow)175			.map(Self)176	}177}178179impl From<TokenId> for U256 {180	fn from(t: TokenId) -> Self {181		t.0.into()182	}183}184185impl TryFrom<U256> for TokenId {186	type Error = &'static str;187188	fn try_from(value: U256) -> Result<Self, Self::Error> {189		Ok(TokenId(value.try_into().map_err(|_| "too large token id")?))190	}191}192193#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]194#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]195pub struct TokenData<CrossAccountId> {196	pub properties: Vec<Property>,197	pub owner: Option<CrossAccountId>,198	pub pieces: u128,199}200201// TODO: unused type202pub struct OverflowError;203impl From<OverflowError> for &'static str {204	fn from(_: OverflowError) -> Self {205		"overflow occured"206	}207}208209/// Alias for decimal points type.210pub type DecimalPoints = u8;211212/// Collection mode.213/// 214/// Collection can represent various types of tokens.215/// Each collection can contain only one type of tokens at a time.216/// This type helps to understand which tokens the collection contains.217#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]218#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]219pub enum CollectionMode {220	/// Non fungible tokens.221	NFT,222	/// Fungible tokens.223	Fungible(DecimalPoints),224	/// Refungible tokens.225	ReFungible,226}227228impl CollectionMode {229	/// Get collection mod as number.230	pub fn id(&self) -> u8 {231		match self {232			CollectionMode::NFT => 1,233			CollectionMode::Fungible(_) => 2,234			CollectionMode::ReFungible => 3,235		}236	}237}238239// TODO: unused trait240pub trait SponsoringResolve<AccountId, Call> {241	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;242}243244/// Access mode for token.245#[derive(Encode, Decode, Eq, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]246#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]247pub enum AccessMode {248	/// Access grant for owner and admins. Used as default.249	Normal,250	/// Like a [`Normal`](AccessMode::Normal) but also users in allow list.251	AllowList,252}253impl Default for AccessMode {254	fn default() -> Self {255		Self::Normal256	}257}258259// TODO: remove in future.260#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]261#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]262pub enum SchemaVersion {263	ImageURL,264	Unique,265}266impl Default for SchemaVersion {267	fn default() -> Self {268		Self::ImageURL269	}270}271272// TODO: unused type273#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]274#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]275pub struct Ownership<AccountId> {276	pub owner: AccountId,277	pub fraction: u128,278}279280/// The state of collection sponsorship.281#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]282#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]283pub enum SponsorshipState<AccountId> {284	/// The fees are applied to the transaction sender.285	Disabled,286	/// The sponsor is under consideration. Until the sponsor gives his consent,287	/// the fee will still be charged to sender.288	Unconfirmed(AccountId),289	/// Transactions are sponsored by specified account.290	Confirmed(AccountId),291}292293impl<AccountId> SponsorshipState<AccountId> {294	/// Get a sponsor of the collection who has confirmed his status.295	pub fn sponsor(&self) -> Option<&AccountId> {296		match self {297			Self::Confirmed(sponsor) => Some(sponsor),298			_ => None,299		}300	}301302	/// Get a sponsor of the collection who has pending or confirmed status.303	pub fn pending_sponsor(&self) -> Option<&AccountId> {304		match self {305			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),306			_ => None,307		}308	}309310	/// Whether the sponsorship is confirmed.311	pub fn confirmed(&self) -> bool {312		matches!(self, Self::Confirmed(_))313	}314}315316impl<T> Default for SponsorshipState<T> {317	fn default() -> Self {318		Self::Disabled319	}320}321322pub type CollectionName = BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>;323pub type CollectionDescription = BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>;324pub type CollectionTokenPrefix = BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>;325326/// Base structure for represent collection.327/// 328/// Used to provide basic functionality for all types of collections.329/// 330/// #### Note331/// Collection parameters, used in storage (see [`RpcCollection`] for the RPC version).332#[struct_versioning::versioned(version = 2, upper)]333#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]334pub struct Collection<AccountId> {335	/// Collection owner account.336	pub owner: AccountId,337338	/// Collection mode.339	pub mode: CollectionMode,340341	/// Access mode.342	#[version(..2)]343	pub access: AccessMode,344345	/// Collection name.346	pub name: CollectionName,347348	/// Collection description.349	pub description: CollectionDescription,350351	/// Token prefix.352	pub token_prefix: CollectionTokenPrefix,353354	#[version(..2)]355	pub mint_mode: bool,356357	#[version(..2)]358	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,359360	#[version(..2)]361	pub schema_version: SchemaVersion,362363	/// The state of sponsorship of the collection.364	pub sponsorship: SponsorshipState<AccountId>,365366	/// Collection limits.367	pub limits: CollectionLimits,368369	/// Collection permissions.370	#[version(2.., upper(Default::default()))]371	pub permissions: CollectionPermissions,372373	/// Marks that this collection is not "unique", and managed from external.374	#[version(2.., upper(false))]375	pub external_collection: bool,376377	#[version(..2)]378	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,379380	#[version(..2)]381	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,382383	#[version(..2)]384	pub meta_update_permission: MetaUpdatePermission,385}386387/// Collection parameters, used in RPC calls (see [`Collection`] for the storage version).388#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]389#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]390pub struct RpcCollection<AccountId> {391	/// Collection owner account.392	pub owner: AccountId,393394	/// Collection mode.395	pub mode: CollectionMode,396397	/// Collection name.398	pub name: Vec<u16>,399400	/// Collection description.401	pub description: Vec<u16>,402403	/// Token prefix.404	pub token_prefix: Vec<u8>,405406	/// The state of sponsorship of the collection.407	pub sponsorship: SponsorshipState<AccountId>,408409	/// Collection limits.410	pub limits: CollectionLimits,411412	/// Collection permissions.413	pub permissions: CollectionPermissions,414415	/// Token property permissions.416	pub token_property_permissions: Vec<PropertyKeyPermission>,417418	/// Collection properties.419	pub properties: Vec<Property>,420421	/// Is collection read only.422	pub read_only: bool,423}424425/// Data used for create collection.426/// 427/// All fields are wrapped in [`Option`], where `None` means chain default.428#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, Derivative, MaxEncodedLen)]429#[derivative(Debug, Default(bound = ""))]430pub struct CreateCollectionData<AccountId> {431	/// Collection mode.432	#[derivative(Default(value = "CollectionMode::NFT"))]433	pub mode: CollectionMode,434435	/// Access mode.436	pub access: Option<AccessMode>,437438	/// Collection name.439	pub name: CollectionName,440441	/// Collection description.442	pub description: CollectionDescription,443444	/// Token prefix.445	pub token_prefix: CollectionTokenPrefix,446447	/// Pending collection sponsor.448	pub pending_sponsor: Option<AccountId>,449450	/// Collection limits.451	pub limits: Option<CollectionLimits>,452453	/// Collection permissions.454	pub permissions: Option<CollectionPermissions>,455456	/// Token property permissions.457	pub token_property_permissions: CollectionPropertiesPermissionsVec,458459	/// Collection properties.460	pub properties: CollectionPropertiesVec,461}462463/// Bounded vector of properties permissions. Max length is [`MAX_PROPERTIES_PER_ITEM`].464// TODO: maybe rename to PropertiesPermissionsVec465pub type CollectionPropertiesPermissionsVec =466	BoundedVec<PropertyKeyPermission, ConstU32<MAX_PROPERTIES_PER_ITEM>>;467468/// Bounded vector of properties. Max length is [`MAX_PROPERTIES_PER_ITEM`].469pub type CollectionPropertiesVec = BoundedVec<Property, ConstU32<MAX_PROPERTIES_PER_ITEM>>;470471/// Limits and restrictions of a collection.472///473/// All fields are wrapped in [`Option`], where `None` means chain default.474/// 475/// Update with `pallet_common::Pallet::clamp_limits`.476// IMPORTANT: When adding/removing fields from this struct - don't forget to also477// TODO: move `pallet_common::Pallet::clamp_limits() in pallet-common.` into `impl CollectionLimits`.478#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]479#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]480pub struct CollectionLimits {481	/// How many tokens can a user have on one account.482	/// * Default - [`ACCOUNT_TOKEN_OWNERSHIP_LIMIT`].483	/// * Limit - [`MAX_TOKEN_OWNERSHIP`].484	pub account_token_ownership_limit: Option<u32>,485486	/// Maximum size of data in bytes of a sponsored transaction.487	/// * Default - [`CUSTOM_DATA_LIMIT`].488	pub sponsored_data_size: Option<u32>,489490	/// FIXME should we delete this or repurpose it?491	/// None - setVariableMetadata is not sponsored492	/// Some(v) - setVariableMetadata is sponsored493	///           if there is v block between txs494	///495	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]496	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,497	/// Maximum amount of tokens inside the collection. Chain default: [`COLLECTION_TOKEN_LIMIT`]498	pub token_limit: Option<u32>,499500	/// Timeout for sponsoring a token transfer in passed blocks. Chain default:501	/// either [`NFT_SPONSOR_TRANSFER_TIMEOUT`], [`FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`], or [`REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`],502	/// depending on the collection type.503	pub sponsor_transfer_timeout: Option<u32>,504	/// Timeout for sponsoring an approval in passed blocks. Chain default: [`SPONSOR_APPROVE_TIMEOUT`]505	pub sponsor_approve_timeout: Option<u32>,506	/// Can a token be transferred by the owner. Chain default: `false`507	pub owner_can_transfer: Option<bool>,508	/// Can a token be burned by the owner. Chain default: `true`509	pub owner_can_destroy: Option<bool>,510	/// Can a token be transferred at all. Chain default: `true`511	pub transfers_enabled: Option<bool>,512}513514impl CollectionLimits {515	pub fn account_token_ownership_limit(&self) -> u32 {516		self.account_token_ownership_limit517			.unwrap_or(ACCOUNT_TOKEN_OWNERSHIP_LIMIT)518			.min(MAX_TOKEN_OWNERSHIP)519	}520	pub fn sponsored_data_size(&self) -> u32 {521		self.sponsored_data_size522			.unwrap_or(CUSTOM_DATA_LIMIT)523			.min(CUSTOM_DATA_LIMIT)524	}525	pub fn token_limit(&self) -> u32 {526		self.token_limit527			.unwrap_or(COLLECTION_TOKEN_LIMIT)528			.min(COLLECTION_TOKEN_LIMIT)529	}530	pub fn sponsor_transfer_timeout(&self, default: u32) -> u32 {531		self.sponsor_transfer_timeout532			.unwrap_or(default)533			.min(MAX_SPONSOR_TIMEOUT)534	}535	pub fn sponsor_approve_timeout(&self) -> u32 {536		self.sponsor_approve_timeout537			.unwrap_or(SPONSOR_APPROVE_TIMEOUT)538			.min(MAX_SPONSOR_TIMEOUT)539	}540	pub fn owner_can_transfer(&self) -> bool {541		self.owner_can_transfer.unwrap_or(false)542	}543	pub fn owner_can_transfer_instaled(&self) -> bool {544		self.owner_can_transfer.is_some()545	}546	pub fn owner_can_destroy(&self) -> bool {547		self.owner_can_destroy.unwrap_or(true)548	}549	pub fn transfers_enabled(&self) -> bool {550		self.transfers_enabled.unwrap_or(true)551	}552	pub fn sponsored_data_rate_limit(&self) -> Option<u32> {553		match self554			.sponsored_data_rate_limit555			.unwrap_or(SponsoringRateLimit::SponsoringDisabled)556		{557			SponsoringRateLimit::SponsoringDisabled => None,558			SponsoringRateLimit::Blocks(v) => Some(v.min(MAX_SPONSOR_TIMEOUT)),559		}560	}561}562563/// Permissions on certain operations within a collection.564/// All fields are wrapped in `Option`s, where None means chain default.565// IMPORTANT: When adding/removing fields from this struct - don't forget to also566// update clamp_limits() in pallet-common.567#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]568#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]569pub struct CollectionPermissions {570	pub access: Option<AccessMode>,571	pub mint_mode: Option<bool>,572	pub nesting: Option<NestingPermissions>,573}574575impl CollectionPermissions {576	pub fn access(&self) -> AccessMode {577		self.access.unwrap_or(AccessMode::Normal)578	}579	pub fn mint_mode(&self) -> bool {580		self.mint_mode.unwrap_or(false)581	}582	pub fn nesting(&self) -> &NestingPermissions {583		static DEFAULT: NestingPermissions = NestingPermissions {584			token_owner: false,585			collection_admin: false,586			restricted: None,587			#[cfg(feature = "runtime-benchmarks")]588			permissive: false,589		};590		self.nesting.as_ref().unwrap_or(&DEFAULT)591	}592}593594type OwnerRestrictedSetInner = BoundedBTreeSet<CollectionId, ConstU32<16>>;595596#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]597#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]598#[derivative(Debug)]599pub struct OwnerRestrictedSet(600	#[cfg_attr(feature = "serde1", serde(with = "bounded::set_serde"))]601	#[derivative(Debug(format_with = "bounded::set_debug"))]602	pub OwnerRestrictedSetInner,603);604impl OwnerRestrictedSet {605	pub fn new() -> Self {606		Self(Default::default())607	}608}609impl core::ops::Deref for OwnerRestrictedSet {610	type Target = OwnerRestrictedSetInner;611	fn deref(&self) -> &Self::Target {612		&self.0613	}614}615impl core::ops::DerefMut for OwnerRestrictedSet {616	fn deref_mut(&mut self) -> &mut Self::Target {617		&mut self.0618	}619}620621/// Part of collection permissions, if set, defines who is able to nest tokens into other tokens.622#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]623#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]624#[derivative(Debug)]625pub struct NestingPermissions {626	/// Owner of token can nest tokens under it627	pub token_owner: bool,628	/// Admin of token collection can nest tokens under token629	pub collection_admin: bool,630	/// If set - only tokens from specified collections can be nested631	pub restricted: Option<OwnerRestrictedSet>,632633	#[cfg(feature = "runtime-benchmarks")]634	/// Anyone can nest tokens, mutually exclusive with `token_owner`, `admin`635	pub permissive: bool,636}637638/// Enum denominating how often can sponsoring occur if it is enabled.639#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]640#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]641pub enum SponsoringRateLimit {642	/// Sponsoring is disabled, and the collection sponsor will not pay for transactions643	SponsoringDisabled,644	/// Once per how many blocks can sponsorship of a transaction type occur645	Blocks(u32),646}647648/// Data used to describe an NFT at creation.649#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]650#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]651#[derivative(Debug)]652pub struct CreateNftData {653	/// Key-value pairs used to describe the token as metadata654	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]655	#[derivative(Debug(format_with = "bounded::vec_debug"))]656	pub properties: CollectionPropertiesVec,657}658659/// Data used to describe a Fungible token at creation.660#[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]661#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]662pub struct CreateFungibleData {663	/// Number of fungible coins minted664	pub value: u128,665}666667/// Data used to describe a Refungible token at creation.668#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]669#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]670#[derivative(Debug)]671pub struct CreateReFungibleData {672	/// Immutable metadata of the token673	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]674	#[derivative(Debug(format_with = "bounded::vec_debug"))]675	pub const_data: BoundedVec<u8, CustomDataLimit>,676677	/// Number of pieces the RFT is split into678	pub pieces: u128,679680	/// Key-value pairs used to describe the token as metadata681	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]682	#[derivative(Debug(format_with = "bounded::vec_debug"))]683	pub properties: CollectionPropertiesVec,684}685686#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]687#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]688pub enum MetaUpdatePermission {689	ItemOwner,690	Admin,691	None,692}693694/// Enum holding data used for creation of all three item types.695#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]696#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]697pub enum CreateItemData {698	NFT(CreateNftData),699	Fungible(CreateFungibleData),700	ReFungible(CreateReFungibleData),701}702703/// Explicit NFT creation data with meta parameters.704#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]705#[derivative(Debug)]706pub struct CreateNftExData<CrossAccountId> {707	#[derivative(Debug(format_with = "bounded::vec_debug"))]708	pub properties: CollectionPropertiesVec,709	pub owner: CrossAccountId,710}711712/// Explicit RFT creation data with meta parameters.713#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]714#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]715pub struct CreateRefungibleExData<CrossAccountId> {716	#[derivative(Debug(format_with = "bounded::vec_debug"))]717	pub const_data: BoundedVec<u8, CustomDataLimit>,718	#[derivative(Debug(format_with = "bounded::map_debug"))]719	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,720	#[derivative(Debug(format_with = "bounded::vec_debug"))]721	pub properties: CollectionPropertiesVec,722}723724/// Explicit item creation data with meta parameters, namely the owner.725#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]726#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]727pub enum CreateItemExData<CrossAccountId> {728	NFT(729		#[derivative(Debug(format_with = "bounded::vec_debug"))]730		BoundedVec<CreateNftExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,731	),732	Fungible(733		#[derivative(Debug(format_with = "bounded::map_debug"))]734		BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,735	),736	/// Many tokens, each may have only one owner737	RefungibleMultipleItems(738		#[derivative(Debug(format_with = "bounded::vec_debug"))]739		BoundedVec<CreateRefungibleExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,740	),741	/// Single token, which may have many owners742	RefungibleMultipleOwners(CreateRefungibleExData<CrossAccountId>),743}744745impl CreateItemData {746	pub fn data_size(&self) -> usize {747		match self {748			CreateItemData::ReFungible(data) => data.const_data.len(),749			_ => 0,750		}751	}752}753754impl From<CreateNftData> for CreateItemData {755	fn from(item: CreateNftData) -> Self {756		CreateItemData::NFT(item)757	}758}759760impl From<CreateReFungibleData> for CreateItemData {761	fn from(item: CreateReFungibleData) -> Self {762		CreateItemData::ReFungible(item)763	}764}765766impl From<CreateFungibleData> for CreateItemData {767	fn from(item: CreateFungibleData) -> Self {768		CreateItemData::Fungible(item)769	}770}771772/// Token's address, dictated by its collection and token IDs.773#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]774#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]775// todo possibly rename to be used generally as an address pair776pub struct TokenChild {777	pub token: TokenId,778	pub collection: CollectionId,779}780781#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]782#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]783pub struct CollectionStats {784	pub created: u32,785	pub destroyed: u32,786	pub alive: u32,787}788789#[derive(Encode, Decode, Clone, Debug)]790#[cfg_attr(feature = "std", derive(PartialEq))]791pub struct PhantomType<T>(core::marker::PhantomData<T>);792793impl<T: TypeInfo + 'static> TypeInfo for PhantomType<T> {794	type Identity = PhantomType<T>;795796	fn type_info() -> scale_info::Type {797		use scale_info::{798			Type, Path,799			build::{FieldsBuilder, UnnamedFields},800			type_params,801		};802		Type::builder()803			.path(Path::new("up_data_structs", "PhantomType"))804			.type_params(type_params!(T))805			.composite(<FieldsBuilder<UnnamedFields>>::default().field(|b| b.ty::<[T; 0]>()))806	}807}808impl<T> MaxEncodedLen for PhantomType<T> {809	fn max_encoded_len() -> usize {810		0811	}812}813814pub type BoundedBytes<S> = BoundedVec<u8, S>;815816pub type AuxPropertyValue = BoundedBytes<ConstU32<MAX_AUX_PROPERTY_VALUE_LENGTH>>;817818pub type PropertyKey = BoundedBytes<ConstU32<MAX_PROPERTY_KEY_LENGTH>>;819pub type PropertyValue = BoundedBytes<ConstU32<MAX_PROPERTY_VALUE_LENGTH>>;820821#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]822#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]823pub struct PropertyPermission {824	pub mutable: bool,825	pub collection_admin: bool,826	pub token_owner: bool,827}828829impl PropertyPermission {830	pub fn none() -> Self {831		Self {832			mutable: true,833			collection_admin: false,834			token_owner: false,835		}836	}837}838839#[derive(Encode, Decode, Debug, TypeInfo, Clone, PartialEq, MaxEncodedLen)]840#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]841pub struct Property {842	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]843	pub key: PropertyKey,844845	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]846	pub value: PropertyValue,847}848849impl Into<(PropertyKey, PropertyValue)> for Property {850	fn into(self) -> (PropertyKey, PropertyValue) {851		(self.key, self.value)852	}853}854855#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]856#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]857pub struct PropertyKeyPermission {858	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]859	pub key: PropertyKey,860861	pub permission: PropertyPermission,862}863864impl Into<(PropertyKey, PropertyPermission)> for PropertyKeyPermission {865	fn into(self) -> (PropertyKey, PropertyPermission) {866		(self.key, self.permission)867	}868}869870#[derive(Debug)]871pub enum PropertiesError {872	NoSpaceForProperty,873	PropertyLimitReached,874	InvalidCharacterInPropertyKey,875	PropertyKeyIsTooLong,876	EmptyPropertyKey,877}878879#[derive(Encode, Decode, MaxEncodedLen, TypeInfo, PartialEq, Clone, Copy)]880pub enum PropertyScope {881	None,882	Rmrk,883}884885impl PropertyScope {886	pub fn apply(self, key: PropertyKey) -> Result<PropertyKey, PropertiesError> {887		let scope_str: &[u8] = match self {888			Self::None => return Ok(key),889			Self::Rmrk => b"rmrk",890		};891892		[scope_str, b":", key.as_slice()]893			.concat()894			.try_into()895			.map_err(|_| PropertiesError::PropertyKeyIsTooLong)896	}897}898899pub trait TrySetProperty: Sized {900	type Value;901902	fn try_scoped_set(903		&mut self,904		scope: PropertyScope,905		key: PropertyKey,906		value: Self::Value,907	) -> Result<(), PropertiesError>;908909	fn try_scoped_set_from_iter<I, KV>(910		&mut self,911		scope: PropertyScope,912		iter: I,913	) -> Result<(), PropertiesError>914	where915		I: Iterator<Item = KV>,916		KV: Into<(PropertyKey, Self::Value)>,917	{918		for kv in iter {919			let (key, value) = kv.into();920			self.try_scoped_set(scope, key, value)?;921		}922923		Ok(())924	}925926	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError> {927		self.try_scoped_set(PropertyScope::None, key, value)928	}929930	fn try_set_from_iter<I, KV>(&mut self, iter: I) -> Result<(), PropertiesError>931	where932		I: Iterator<Item = KV>,933		KV: Into<(PropertyKey, Self::Value)>,934	{935		self.try_scoped_set_from_iter(PropertyScope::None, iter)936	}937}938939#[derive(Encode, Decode, TypeInfo, Derivative, Clone, PartialEq, MaxEncodedLen)]940#[derivative(Default(bound = ""))]941pub struct PropertiesMap<Value>(942	BoundedBTreeMap<PropertyKey, Value, ConstU32<MAX_PROPERTIES_PER_ITEM>>,943);944945impl<Value> PropertiesMap<Value> {946	pub fn new() -> Self {947		Self(BoundedBTreeMap::new())948	}949950	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<Value>, PropertiesError> {951		Self::check_property_key(key)?;952953		Ok(self.0.remove(key))954	}955956	pub fn get(&self, key: &PropertyKey) -> Option<&Value> {957		self.0.get(key)958	}959960	pub fn contains_key(&self, key: &PropertyKey) -> bool {961		self.0.contains_key(key)962	}963964	fn check_property_key(key: &PropertyKey) -> Result<(), PropertiesError> {965		if key.is_empty() {966			return Err(PropertiesError::EmptyPropertyKey);967		}968969		for byte in key.as_slice().iter() {970			let byte = *byte;971972			if !byte.is_ascii_alphanumeric() && byte != b'_' && byte != b'-' && byte != b'.' {973				return Err(PropertiesError::InvalidCharacterInPropertyKey);974			}975		}976977		Ok(())978	}979}980981impl<Value> IntoIterator for PropertiesMap<Value> {982	type Item = (PropertyKey, Value);983	type IntoIter = <984		BoundedBTreeMap<985			PropertyKey,986			Value,987			ConstU32<MAX_PROPERTIES_PER_ITEM>988		> as IntoIterator989	>::IntoIter;990991	fn into_iter(self) -> Self::IntoIter {992		self.0.into_iter()993	}994}995996impl<Value> TrySetProperty for PropertiesMap<Value> {997	type Value = Value;998999	fn try_scoped_set(1000		&mut self,1001		scope: PropertyScope,1002		key: PropertyKey,1003		value: Self::Value,1004	) -> Result<(), PropertiesError> {1005		Self::check_property_key(&key)?;10061007		let key = scope.apply(key)?;1008		self.01009			.try_insert(key, value)1010			.map_err(|_| PropertiesError::PropertyLimitReached)?;10111012		Ok(())1013	}1014}10151016pub type PropertiesPermissionMap = PropertiesMap<PropertyPermission>;10171018#[derive(Encode, Decode, TypeInfo, Clone, PartialEq, MaxEncodedLen)]1019pub struct Properties {1020	map: PropertiesMap<PropertyValue>,1021	consumed_space: u32,1022	space_limit: u32,1023}10241025impl Properties {1026	pub fn new(space_limit: u32) -> Self {1027		Self {1028			map: PropertiesMap::new(),1029			consumed_space: 0,1030			space_limit,1031		}1032	}10331034	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<PropertyValue>, PropertiesError> {1035		let value = self.map.remove(key)?;10361037		if let Some(ref value) = value {1038			let value_len = value.len() as u32;1039			self.consumed_space -= value_len;1040		}10411042		Ok(value)1043	}10441045	pub fn get(&self, key: &PropertyKey) -> Option<&PropertyValue> {1046		self.map.get(key)1047	}1048}10491050impl IntoIterator for Properties {1051	type Item = (PropertyKey, PropertyValue);1052	type IntoIter = <PropertiesMap<PropertyValue> as IntoIterator>::IntoIter;10531054	fn into_iter(self) -> Self::IntoIter {1055		self.map.into_iter()1056	}1057}10581059impl TrySetProperty for Properties {1060	type Value = PropertyValue;10611062	fn try_scoped_set(1063		&mut self,1064		scope: PropertyScope,1065		key: PropertyKey,1066		value: Self::Value,1067	) -> Result<(), PropertiesError> {1068		let value_len = value.len();10691070		if self.consumed_space as usize + value_len > self.space_limit as usize1071			&& !cfg!(feature = "runtime-benchmarks")1072		{1073			return Err(PropertiesError::NoSpaceForProperty);1074		}10751076		self.map.try_scoped_set(scope, key, value)?;10771078		self.consumed_space += value_len as u32;10791080		Ok(())1081	}1082}10831084pub struct CollectionProperties;10851086impl Get<Properties> for CollectionProperties {1087	fn get() -> Properties {1088		Properties::new(MAX_COLLECTION_PROPERTIES_SIZE)1089	}1090}10911092pub struct TokenProperties;10931094impl Get<Properties> for TokenProperties {1095	fn get() -> Properties {1096		Properties::new(MAX_TOKEN_PROPERTIES_SIZE)1097	}1098}10991100// RMRK1101// todo document?1102parameter_types! {1103	#[derive(PartialEq, TypeInfo)]1104	pub const RmrkStringLimit: u32 = 128;1105	#[derive(PartialEq)]1106	pub const RmrkCollectionSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1107	#[derive(PartialEq)]1108	pub const RmrkResourceSymbolLimit: u32 = 10;1109	#[derive(PartialEq)]1110	pub const RmrkBaseSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1111	#[derive(PartialEq)]1112	pub const RmrkKeyLimit: u32 = 32;1113	#[derive(PartialEq)]1114	pub const RmrkValueLimit: u32 = 256;1115	#[derive(PartialEq)]1116	pub const RmrkMaxCollectionsEquippablePerPart: u32 = 100;1117	#[derive(PartialEq)]1118	pub const MaxPropertiesPerTheme: u32 = 5;1119	#[derive(PartialEq)]1120	pub const RmrkPartsLimit: u32 = 25;1121	#[derive(PartialEq)]1122	pub const RmrkMaxPriorities: u32 = 25;1123	#[derive(PartialEq)]1124	pub const MaxResourcesOnMint: u32 = 100;1125}11261127impl From<RmrkCollectionId> for CollectionId {1128	fn from(id: RmrkCollectionId) -> Self {1129		Self(id)1130	}1131}11321133impl From<RmrkNftId> for TokenId {1134	fn from(id: RmrkNftId) -> Self {1135		Self(id)1136	}1137}11381139pub type RmrkCollectionInfo<AccountId> =1140	CollectionInfo<RmrkString, RmrkCollectionSymbol, AccountId>;1141pub type RmrkInstanceInfo<AccountId> = NftInfo<AccountId, Permill, RmrkString>;1142pub type RmrkResourceInfo = ResourceInfo<RmrkString, RmrkBoundedParts>;1143pub type RmrkPropertyInfo = PropertyInfo<RmrkKeyString, RmrkValueString>;1144pub type RmrkBaseInfo<AccountId> = BaseInfo<AccountId, RmrkString>;1145pub type BoundedEquippableCollectionIds =1146	BoundedVec<RmrkCollectionId, RmrkMaxCollectionsEquippablePerPart>;1147pub type RmrkPartType = PartType<RmrkString, BoundedEquippableCollectionIds>;1148pub type RmrkEquippableList = EquippableList<BoundedEquippableCollectionIds>;1149pub type RmrkThemeProperty = ThemeProperty<RmrkString>;1150pub type RmrkTheme = Theme<RmrkString, Vec<RmrkThemeProperty>>;1151pub type RmrkBoundedTheme = Theme<RmrkString, BoundedVec<RmrkThemeProperty, MaxPropertiesPerTheme>>;1152pub type RmrkResourceTypes = ResourceTypes<RmrkString, RmrkBoundedParts>;11531154pub type RmrkBasicResource = BasicResource<RmrkString>;1155pub type RmrkComposableResource = ComposableResource<RmrkString, RmrkBoundedParts>;1156pub type RmrkSlotResource = SlotResource<RmrkString>;11571158pub type RmrkString = BoundedVec<u8, RmrkStringLimit>;1159pub type RmrkCollectionSymbol = BoundedVec<u8, RmrkCollectionSymbolLimit>;1160pub type RmrkBaseSymbol = BoundedVec<u8, RmrkBaseSymbolLimit>;1161pub type RmrkKeyString = BoundedVec<u8, RmrkKeyLimit>;1162pub type RmrkValueString = BoundedVec<u8, RmrkValueLimit>;1163pub type RmrkBoundedResource = BoundedVec<u8, RmrkResourceSymbolLimit>;1164pub type RmrkBoundedParts = BoundedVec<RmrkPartId, RmrkPartsLimit>; // todo make sure it is needed11651166pub type RmrkRpcString = Vec<u8>;1167pub type RmrkThemeName = RmrkRpcString;1168pub type RmrkPropertyKey = RmrkRpcString;
after · primitives/data-structs/src/lib.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//! # Primitives crate.18//! 19//! This crate contains amount of types, traits and constants.2021#![cfg_attr(not(feature = "std"), no_std)]2223use core::{24	convert::{TryFrom, TryInto},25	fmt,26};27use frame_support::{28	storage::{bounded_btree_map::BoundedBTreeMap, bounded_btree_set::BoundedBTreeSet},29	traits::Get,30	parameter_types,31};3233#[cfg(feature = "serde")]34use serde::{Serialize, Deserialize};3536use sp_core::U256;37use sp_runtime::{ArithmeticError, sp_std::prelude::Vec, Permill};38use codec::{Decode, Encode, EncodeLike, MaxEncodedLen};39use frame_support::{BoundedVec, traits::ConstU32};40use derivative::Derivative;41use scale_info::TypeInfo;4243// RMRK44use rmrk_traits::{45	CollectionInfo, NftInfo, ResourceInfo, PropertyInfo, BaseInfo, PartType, Theme, ThemeProperty,46	ResourceTypes, BasicResource, ComposableResource, SlotResource, EquippableList,47};48pub use rmrk_traits::{49	primitives::{50		CollectionId as RmrkCollectionId, NftId as RmrkNftId, BaseId as RmrkBaseId,51		SlotId as RmrkSlotId, PartId as RmrkPartId, ResourceId as RmrkResourceId,52	},53	NftChild as RmrkNftChild, AccountIdOrCollectionNftTuple as RmrkAccountIdOrCollectionNftTuple,54	FixedPart as RmrkFixedPart, SlotPart as RmrkSlotPart,55};5657mod bounded;58pub mod budget;59pub mod mapping;60mod migration;6162/// Maximum of decimal points.63pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;6465/// Maximum pieces for refungible token.66pub const MAX_REFUNGIBLE_PIECES: u128 = 1_000_000_000_000_000_000_000;67pub const MAX_SPONSOR_TIMEOUT: u32 = 10_368_000;6869/// Maximum tokens for user.70pub const MAX_TOKEN_OWNERSHIP: u32 = if cfg!(not(feature = "limit-testing")) {71	100_00072} else {73	1074};7576/// Maximum for collections can be created.77pub const COLLECTION_NUMBER_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {78	100_00079} else {80	1081};8283/// Maximum for various custom data of token.84pub const CUSTOM_DATA_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {85	204886} else {87	1088};8990/// Maximum admins per collection.91pub const COLLECTION_ADMINS_LIMIT: u32 = 5;9293/// Maximum tokens per collection.94pub const COLLECTION_TOKEN_LIMIT: u32 = u32::MAX;9596/// Maximum tokens per account.97pub const ACCOUNT_TOKEN_OWNERSHIP_LIMIT: u32 = if cfg!(not(feature = "limit-testing")) {98	1_000_00099} else {100	10101};102103/// Default timeout for transfer sponsoring NFT item.104pub const NFT_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;105/// Default timeout for transfer sponsoring fungible item.106pub const FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;107/// Default timeout for transfer sponsoring refungible item.108pub const REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT: u32 = 5;109110/// Default timeout for sponsored approving.111pub const SPONSOR_APPROVE_TIMEOUT: u32 = 5;112113// Schema limits114pub const OFFCHAIN_SCHEMA_LIMIT: u32 = 8192;115pub const VARIABLE_ON_CHAIN_SCHEMA_LIMIT: u32 = 8192;116pub const CONST_ON_CHAIN_SCHEMA_LIMIT: u32 = 32768;117118// TODO: not used. Delete?119pub const COLLECTION_FIELD_LIMIT: u32 = CONST_ON_CHAIN_SCHEMA_LIMIT;120121/// Maximum length for collection name.122pub const MAX_COLLECTION_NAME_LENGTH: u32 = 64;123124/// Maximum length for collection description.125pub const MAX_COLLECTION_DESCRIPTION_LENGTH: u32 = 256;126127/// Maximal token prefix length.128pub const MAX_TOKEN_PREFIX_LENGTH: u32 = 16;129130/// Maximal lenght of property key.131pub const MAX_PROPERTY_KEY_LENGTH: u32 = 256;132133/// Maximal lenght of property value.134pub const MAX_PROPERTY_VALUE_LENGTH: u32 = 32768;135136/// Maximum properties that can be assigned to token.137pub const MAX_PROPERTIES_PER_ITEM: u32 = 64;138139/// Maximal lenght of extended property value.140pub const MAX_AUX_PROPERTY_VALUE_LENGTH: u32 = 2048;141142/// Maximum size for all collection properties.143pub const MAX_COLLECTION_PROPERTIES_SIZE: u32 = 40960;144145/// Maximum size for all token properties.146pub const MAX_TOKEN_PROPERTIES_SIZE: u32 = 32768;147148/// How much items can be created per single149/// create_many call.150pub const MAX_ITEMS_PER_BATCH: u32 = 200;151152/// Used for limit bounded types of token custom data.153pub type CustomDataLimit = ConstU32<CUSTOM_DATA_LIMIT>;154155/// Collection id.156#[derive(157	Encode,158	Decode,159	PartialEq,160	Eq,161	PartialOrd,162	Ord,163	Clone,164	Copy,165	Debug,166	Default,167	TypeInfo,168	MaxEncodedLen,169)]170#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]171pub struct CollectionId(pub u32);172impl EncodeLike<u32> for CollectionId {}173impl EncodeLike<CollectionId> for u32 {}174175/// Token id.176#[derive(177	Encode,178	Decode,179	PartialEq,180	Eq,181	PartialOrd,182	Ord,183	Clone,184	Copy,185	Debug,186	Default,187	TypeInfo,188	MaxEncodedLen,189)]190#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]191pub struct TokenId(pub u32);192impl EncodeLike<u32> for TokenId {}193impl EncodeLike<TokenId> for u32 {}194195impl TokenId {196	/// Try to get next token id.197	/// 198	/// If next id cause overflow, then [`ArithmeticError::Overflow`] returned.199	pub fn try_next(self) -> Result<TokenId, ArithmeticError> {200		self.0201			.checked_add(1)202			.ok_or(ArithmeticError::Overflow)203			.map(Self)204	}205}206207impl From<TokenId> for U256 {208	fn from(t: TokenId) -> Self {209		t.0.into()210	}211}212213impl TryFrom<U256> for TokenId {214	type Error = &'static str;215216	fn try_from(value: U256) -> Result<Self, Self::Error> {217		Ok(TokenId(value.try_into().map_err(|_| "too large token id")?))218	}219}220221/// Token data.222#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]223#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]224pub struct TokenData<CrossAccountId> {225	/// Properties of token.226	pub properties: Vec<Property>,227228	/// Token owner.229	pub owner: Option<CrossAccountId>,230231	/// Token pieces.232	pub pieces: u128,233}234235// TODO: unused type236pub struct OverflowError;237impl From<OverflowError> for &'static str {238	fn from(_: OverflowError) -> Self {239		"overflow occured"240	}241}242243/// Alias for decimal points type.244pub type DecimalPoints = u8;245246/// Collection mode.247/// 248/// Collection can represent various types of tokens.249/// Each collection can contain only one type of tokens at a time.250/// This type helps to understand which tokens the collection contains.251#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]252#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]253pub enum CollectionMode {254	/// Non fungible tokens.255	NFT,256	/// Fungible tokens.257	Fungible(DecimalPoints),258	/// Refungible tokens.259	ReFungible,260}261262impl CollectionMode {263	/// Get collection mod as number.264	pub fn id(&self) -> u8 {265		match self {266			CollectionMode::NFT => 1,267			CollectionMode::Fungible(_) => 2,268			CollectionMode::ReFungible => 3,269		}270	}271}272273// TODO: unused trait274pub trait SponsoringResolve<AccountId, Call> {275	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;276}277278/// Access mode for some token operations.279#[derive(Encode, Decode, Eq, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]280#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]281pub enum AccessMode {282	/// Access grant for owner and admins. Used as default.283	Normal,284	/// Like a [`Normal`](AccessMode::Normal) but also users in allow list.285	AllowList,286}287impl Default for AccessMode {288	fn default() -> Self {289		Self::Normal290	}291}292293// TODO: remove in future.294#[derive(Encode, Decode, Eq, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]295#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]296pub enum SchemaVersion {297	ImageURL,298	Unique,299}300impl Default for SchemaVersion {301	fn default() -> Self {302		Self::ImageURL303	}304}305306// TODO: unused type307#[derive(Encode, Decode, Default, Debug, Clone, PartialEq, TypeInfo)]308#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]309pub struct Ownership<AccountId> {310	pub owner: AccountId,311	pub fraction: u128,312}313314/// The state of collection sponsorship.315#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]316#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]317pub enum SponsorshipState<AccountId> {318	/// The fees are applied to the transaction sender.319	Disabled,320	/// The sponsor is under consideration. Until the sponsor gives his consent,321	/// the fee will still be charged to sender.322	Unconfirmed(AccountId),323	/// Transactions are sponsored by specified account.324	Confirmed(AccountId),325}326327impl<AccountId> SponsorshipState<AccountId> {328	/// Get a sponsor of the collection who has confirmed his status.329	pub fn sponsor(&self) -> Option<&AccountId> {330		match self {331			Self::Confirmed(sponsor) => Some(sponsor),332			_ => None,333		}334	}335336	/// Get a sponsor of the collection who has pending or confirmed status.337	pub fn pending_sponsor(&self) -> Option<&AccountId> {338		match self {339			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),340			_ => None,341		}342	}343344	/// Whether the sponsorship is confirmed.345	pub fn confirmed(&self) -> bool {346		matches!(self, Self::Confirmed(_))347	}348}349350impl<T> Default for SponsorshipState<T> {351	fn default() -> Self {352		Self::Disabled353	}354}355356pub type CollectionName = BoundedVec<u16, ConstU32<MAX_COLLECTION_NAME_LENGTH>>;357pub type CollectionDescription = BoundedVec<u16, ConstU32<MAX_COLLECTION_DESCRIPTION_LENGTH>>;358pub type CollectionTokenPrefix = BoundedVec<u8, ConstU32<MAX_TOKEN_PREFIX_LENGTH>>;359360/// Base structure for represent collection.361/// 362/// Used to provide basic functionality for all types of collections.363/// 364/// #### Note365/// Collection parameters, used in storage (see [`RpcCollection`] for the RPC version).366#[struct_versioning::versioned(version = 2, upper)]367#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen)]368pub struct Collection<AccountId> {369	/// Collection owner account.370	pub owner: AccountId,371372	/// Collection mode.373	pub mode: CollectionMode,374375	/// Access mode.376	#[version(..2)]377	pub access: AccessMode,378379	/// Collection name.380	pub name: CollectionName,381382	/// Collection description.383	pub description: CollectionDescription,384385	/// Token prefix.386	pub token_prefix: CollectionTokenPrefix,387388	#[version(..2)]389	pub mint_mode: bool,390391	#[version(..2)]392	pub offchain_schema: BoundedVec<u8, ConstU32<OFFCHAIN_SCHEMA_LIMIT>>,393394	#[version(..2)]395	pub schema_version: SchemaVersion,396397	/// The state of sponsorship of the collection.398	pub sponsorship: SponsorshipState<AccountId>,399400	/// Collection limits.401	pub limits: CollectionLimits,402403	/// Collection permissions.404	#[version(2.., upper(Default::default()))]405	pub permissions: CollectionPermissions,406407	/// Marks that this collection is not "unique", and managed from external.408	#[version(2.., upper(false))]409	pub external_collection: bool,410411	#[version(..2)]412	pub variable_on_chain_schema: BoundedVec<u8, ConstU32<VARIABLE_ON_CHAIN_SCHEMA_LIMIT>>,413414	#[version(..2)]415	pub const_on_chain_schema: BoundedVec<u8, ConstU32<CONST_ON_CHAIN_SCHEMA_LIMIT>>,416417	#[version(..2)]418	pub meta_update_permission: MetaUpdatePermission,419}420421/// Collection parameters, used in RPC calls (see [`Collection`] for the storage version).422#[derive(Encode, Decode, Clone, PartialEq, TypeInfo)]423#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]424pub struct RpcCollection<AccountId> {425	/// Collection owner account.426	pub owner: AccountId,427428	/// Collection mode.429	pub mode: CollectionMode,430431	/// Collection name.432	pub name: Vec<u16>,433434	/// Collection description.435	pub description: Vec<u16>,436437	/// Token prefix.438	pub token_prefix: Vec<u8>,439440	/// The state of sponsorship of the collection.441	pub sponsorship: SponsorshipState<AccountId>,442443	/// Collection limits.444	pub limits: CollectionLimits,445446	/// Collection permissions.447	pub permissions: CollectionPermissions,448449	/// Token property permissions.450	pub token_property_permissions: Vec<PropertyKeyPermission>,451452	/// Collection properties.453	pub properties: Vec<Property>,454455	/// Is collection read only.456	pub read_only: bool,457}458459/// Data used for create collection.460/// 461/// All fields are wrapped in [`Option`], where `None` means chain default.462#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, Derivative, MaxEncodedLen)]463#[derivative(Debug, Default(bound = ""))]464pub struct CreateCollectionData<AccountId> {465	/// Collection mode.466	#[derivative(Default(value = "CollectionMode::NFT"))]467	pub mode: CollectionMode,468469	/// Access mode.470	pub access: Option<AccessMode>,471472	/// Collection name.473	pub name: CollectionName,474475	/// Collection description.476	pub description: CollectionDescription,477478	/// Token prefix.479	pub token_prefix: CollectionTokenPrefix,480481	/// Pending collection sponsor.482	pub pending_sponsor: Option<AccountId>,483484	/// Collection limits.485	pub limits: Option<CollectionLimits>,486487	/// Collection permissions.488	pub permissions: Option<CollectionPermissions>,489490	/// Token property permissions.491	pub token_property_permissions: CollectionPropertiesPermissionsVec,492493	/// Collection properties.494	pub properties: CollectionPropertiesVec,495}496497/// Bounded vector of properties permissions. Max length is [`MAX_PROPERTIES_PER_ITEM`].498// TODO: maybe rename to PropertiesPermissionsVec499pub type CollectionPropertiesPermissionsVec =500	BoundedVec<PropertyKeyPermission, ConstU32<MAX_PROPERTIES_PER_ITEM>>;501502/// Bounded vector of properties. Max length is [`MAX_PROPERTIES_PER_ITEM`].503pub type CollectionPropertiesVec = BoundedVec<Property, ConstU32<MAX_PROPERTIES_PER_ITEM>>;504505/// Limits and restrictions of a collection.506///507/// All fields are wrapped in [`Option`], where `None` means chain default.508/// 509/// Update with `pallet_common::Pallet::clamp_limits`.510// IMPORTANT: When adding/removing fields from this struct - don't forget to also511#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]512#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]513// When adding/removing fields from this struct - don't forget to also update with `pallet_common::Pallet::clamp_limits`.514// TODO: move `pallet_common::Pallet::clamp_limits` into `impl CollectionLimits`.515// TODO: may be remove [`Option`] and **pub** from fields and create struct with default values.516pub struct CollectionLimits {517	/// How many tokens can a user have on one account.518	/// * Default - [`ACCOUNT_TOKEN_OWNERSHIP_LIMIT`].519	/// * Limit - [`MAX_TOKEN_OWNERSHIP`].520	pub account_token_ownership_limit: Option<u32>,521522	/// How many bytes of data are available for sponsorship.523	/// * Default - [`CUSTOM_DATA_LIMIT`].524	/// * Limit - [`CUSTOM_DATA_LIMIT`].525	pub sponsored_data_size: Option<u32>,526527	// FIXME should we delete this or repurpose it?528	/// Times in how many blocks we sponsor data.529	/// 530	/// If is `Some(v)` then **setVariableMetadata** is sponsored if there is `v` block between transactions.531	/// 532	/// * Default - [`SponsoringDisabled`](SponsoringRateLimit::SponsoringDisabled).533	/// * Limit - [`MAX_SPONSOR_TIMEOUT`].534	///535	/// In any case, chain default: [`SponsoringRateLimit::SponsoringDisabled`]536	pub sponsored_data_rate_limit: Option<SponsoringRateLimit>,537	/// Maximum amount of tokens inside the collection. Chain default: [`COLLECTION_TOKEN_LIMIT`]538539	/// How many tokens can be mined into this collection.540	/// 541	/// * Default - [`COLLECTION_TOKEN_LIMIT`].542	/// * Limit - [`COLLECTION_TOKEN_LIMIT`].543	pub token_limit: Option<u32>,544545	/// Timeouts for transfer sponsoring.546	/// 547	/// * Default548	///   - **Fungible** - [`FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`]549	///   - **NFT** - [`NFT_SPONSOR_TRANSFER_TIMEOUT`]550	///   - **Refungible** - [`REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT`]551	/// * Limit - [`MAX_SPONSOR_TIMEOUT`].552	pub sponsor_transfer_timeout: Option<u32>,553	554	/// Timeout for sponsoring an approval in passed blocks.555	/// 556	/// * Default - [`SPONSOR_APPROVE_TIMEOUT`].557	/// * Limit - [`MAX_SPONSOR_TIMEOUT`].558	pub sponsor_approve_timeout: Option<u32>,559560	/// Whether the collection owner of the collection can send tokens (which belong to other users).561	/// 562	/// * Default - **false**.563	pub owner_can_transfer: Option<bool>,564565	/// Can the collection owner burn other people's tokens.566	/// 567	/// * Default - **true**.568	pub owner_can_destroy: Option<bool>,569	570	/// Is it possible to send tokens from this collection between users.571	/// 572	/// * Default - **true**.573	pub transfers_enabled: Option<bool>,574}575576impl CollectionLimits {577	/// Get effective value for [`account_token_ownership_limit`](self.account_token_ownership_limit).578	pub fn account_token_ownership_limit(&self) -> u32 {579		self.account_token_ownership_limit580			.unwrap_or(ACCOUNT_TOKEN_OWNERSHIP_LIMIT)581			.min(MAX_TOKEN_OWNERSHIP)582	}583584	/// Get effective value for [`sponsored_data_size`](self.sponsored_data_size).585	pub fn sponsored_data_size(&self) -> u32 {586		self.sponsored_data_size587			.unwrap_or(CUSTOM_DATA_LIMIT)588			.min(CUSTOM_DATA_LIMIT)589	}590591	/// Get effective value for [`token_limit`](self.token_limit).592	pub fn token_limit(&self) -> u32 {593		self.token_limit594			.unwrap_or(COLLECTION_TOKEN_LIMIT)595			.min(COLLECTION_TOKEN_LIMIT)596	}597598	// TODO: may be replace u32 to mode?599	/// Get effective value for [`sponsor_transfer_timeout`](self.sponsor_transfer_timeout).600	pub fn sponsor_transfer_timeout(&self, default: u32) -> u32 {601		self.sponsor_transfer_timeout602			.unwrap_or(default)603			.min(MAX_SPONSOR_TIMEOUT)604	}605606	/// Get effective value for [`sponsor_approve_timeout`](self.sponsor_approve_timeout).607	pub fn sponsor_approve_timeout(&self) -> u32 {608		self.sponsor_approve_timeout609			.unwrap_or(SPONSOR_APPROVE_TIMEOUT)610			.min(MAX_SPONSOR_TIMEOUT)611	}612613	/// Get effective value for [`owner_can_transfer`](self.owner_can_transfer).614	pub fn owner_can_transfer(&self) -> bool {615		self.owner_can_transfer.unwrap_or(false)616	}617618	/// Get effective value for [`owner_can_transfer_instaled`](self.owner_can_transfer_instaled).619	pub fn owner_can_transfer_instaled(&self) -> bool {620		self.owner_can_transfer.is_some()621	}622623	/// Get effective value for [`owner_can_destroy`](self.owner_can_destroy).624	pub fn owner_can_destroy(&self) -> bool {625		self.owner_can_destroy.unwrap_or(true)626	}627628	/// Get effective value for [`transfers_enabled`](self.transfers_enabled).629	pub fn transfers_enabled(&self) -> bool {630		self.transfers_enabled.unwrap_or(true)631	}632633	/// Get effective value for [`sponsored_data_rate_limit`](self.sponsored_data_rate_limit).634	pub fn sponsored_data_rate_limit(&self) -> Option<u32> {635		match self636			.sponsored_data_rate_limit637			.unwrap_or(SponsoringRateLimit::SponsoringDisabled)638		{639			SponsoringRateLimit::SponsoringDisabled => None,640			SponsoringRateLimit::Blocks(v) => Some(v.min(MAX_SPONSOR_TIMEOUT)),641		}642	}643}644645/// Permissions on certain operations within a collection.646/// 647/// Some fields are wrapped in [`Option`], where `None` means chain default.648/// 649/// Update with `pallet_common::Pallet::clamp_permissions`.650#[derive(Encode, Decode, Debug, Default, Clone, PartialEq, TypeInfo, MaxEncodedLen)]651#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]652// When adding/removing fields from this struct - don't forget to also update `pallet_common::Pallet::clamp_permissions`.653// TODO: move `pallet_common::Pallet::clamp_permissions` into `impl CollectionPermissions`.654pub struct CollectionPermissions {655	/// Access mode.656	/// 657	/// * Default - [`AccessMode::Normal`].658	pub access: Option<AccessMode>,659660	/// Minting allowance.661	/// 662	/// * Default - **false**.663	pub mint_mode: Option<bool>,664665	/// Permissions for nesting.666	/// 667	/// * Default668	///   - `token_owner` - **false**669	///   - `collection_admin` - **false**670	///   - `restricted` - **None**671	pub nesting: Option<NestingPermissions>,672}673674impl CollectionPermissions {675	/// Get effective value for [`access`](self.access).676	pub fn access(&self) -> AccessMode {677		self.access.unwrap_or(AccessMode::Normal)678	}679680	/// Get effective value for [`mint_mode`](self.mint_mode).681	pub fn mint_mode(&self) -> bool {682		self.mint_mode.unwrap_or(false)683	}684685	/// Get effective value for [`nesting`](self.nesting).686	pub fn nesting(&self) -> &NestingPermissions {687		static DEFAULT: NestingPermissions = NestingPermissions {688			token_owner: false,689			collection_admin: false,690			restricted: None,691			#[cfg(feature = "runtime-benchmarks")]692			permissive: false,693		};694		self.nesting.as_ref().unwrap_or(&DEFAULT)695	}696}697698/// Inner set for collections allowed to nest.699type OwnerRestrictedSetInner = BoundedBTreeSet<CollectionId, ConstU32<16>>;700701/// Wraper for collections set allowing nest.702#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]703#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]704#[derivative(Debug)]705pub struct OwnerRestrictedSet(706	#[cfg_attr(feature = "serde1", serde(with = "bounded::set_serde"))]707	#[derivative(Debug(format_with = "bounded::set_debug"))]708	pub OwnerRestrictedSetInner,709);710711impl OwnerRestrictedSet {712	/// Create new set.713	pub fn new() -> Self {714		Self(Default::default())715	}716}717impl core::ops::Deref for OwnerRestrictedSet {718	type Target = OwnerRestrictedSetInner;719	fn deref(&self) -> &Self::Target {720		&self.0721	}722}723impl core::ops::DerefMut for OwnerRestrictedSet {724	fn deref_mut(&mut self) -> &mut Self::Target {725		&mut self.0726	}727}728729/// Part of collection permissions, if set, defines who is able to nest tokens into other tokens.730#[derive(Encode, Decode, Clone, PartialEq, TypeInfo, MaxEncodedLen, Derivative)]731#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]732#[derivative(Debug)]733pub struct NestingPermissions {734	/// Owner of token can nest tokens under it.735	pub token_owner: bool,736	/// Admin of token collection can nest tokens under token.737	pub collection_admin: bool,738	/// If set - only tokens from specified collections can be nested.739	pub restricted: Option<OwnerRestrictedSet>,740741	#[cfg(feature = "runtime-benchmarks")]742	/// Anyone can nest tokens, mutually exclusive with `token_owner`, `admin`.743	pub permissive: bool,744}745746/// Enum denominating how often can sponsoring occur if it is enabled.747/// 748/// Used for [`collection limits`](CollectionLimits).749#[derive(Encode, Decode, Debug, Clone, Copy, PartialEq, TypeInfo, MaxEncodedLen)]750#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]751pub enum SponsoringRateLimit {752	/// Sponsoring is disabled, and the collection sponsor will not pay for transactions753	SponsoringDisabled,754	/// Once per how many blocks can sponsorship of a transaction type occur755	Blocks(u32),756}757758/// Data used to describe an NFT at creation.759#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]760#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]761#[derivative(Debug)]762pub struct CreateNftData {763	/// Key-value pairs used to describe the token as metadata764	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]765	#[derivative(Debug(format_with = "bounded::vec_debug"))]766	/// Properties that wil be assignet to created item.767	pub properties: CollectionPropertiesVec,768}769770/// Data used to describe a Fungible token at creation.771#[derive(Encode, Decode, MaxEncodedLen, Default, Debug, Clone, PartialEq, TypeInfo)]772#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]773pub struct CreateFungibleData {774	/// Number of fungible coins minted775	pub value: u128,776}777778/// Data used to describe a Refungible token at creation.779#[derive(Encode, Decode, MaxEncodedLen, Default, PartialEq, Clone, Derivative, TypeInfo)]780#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]781#[derivative(Debug)]782pub struct CreateReFungibleData {783	/// Immutable metadata of the token784	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]785	#[derivative(Debug(format_with = "bounded::vec_debug"))]786	pub const_data: BoundedVec<u8, CustomDataLimit>,787788	/// Pieces of created token.789	pub pieces: u128,790791	/// Key-value pairs used to describe the token as metadata792	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]793	#[derivative(Debug(format_with = "bounded::vec_debug"))]794	pub properties: CollectionPropertiesVec,795}796797// TODO: remove this.798#[derive(Encode, Decode, Debug, Clone, PartialEq, TypeInfo, MaxEncodedLen)]799#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]800pub enum MetaUpdatePermission {801	ItemOwner,802	Admin,803	None,804}805806/// Enum holding data used for creation of all three item types.807/// Unified data for create item.808#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]809#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]810pub enum CreateItemData {811	/// Data for create NFT.812	NFT(CreateNftData),813	/// Data for create Fungible item.814	Fungible(CreateFungibleData),815	/// Data for create ReFungible item.816	ReFungible(CreateReFungibleData),817}818819/// Extended data for create NFT.820#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]821#[derivative(Debug)]822pub struct CreateNftExData<CrossAccountId> {823	/// Properties that wil be assignet to created item.824	#[derivative(Debug(format_with = "bounded::vec_debug"))]825	pub properties: CollectionPropertiesVec,826827	/// Owner of creating item.828	pub owner: CrossAccountId,829}830831/// Extended data for create ReFungible item.832#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]833#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]834pub struct CreateRefungibleExData<CrossAccountId> {835	/// Custom data stored in token.836	#[derivative(Debug(format_with = "bounded::vec_debug"))]837	pub const_data: BoundedVec<u8, CustomDataLimit>,838839	/// Users who will be assigned the specified number of token parts.840	#[derivative(Debug(format_with = "bounded::map_debug"))]841	pub users: BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,842	#[derivative(Debug(format_with = "bounded::vec_debug"))]843	pub properties: CollectionPropertiesVec,844}845846/// Unified extended data for creating item.847#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, TypeInfo, Derivative)]848#[derivative(Debug(bound = "CrossAccountId: fmt::Debug + Ord"))]849pub enum CreateItemExData<CrossAccountId> {850	/// Extended data for create NFT.851	NFT(852		#[derivative(Debug(format_with = "bounded::vec_debug"))]853		BoundedVec<CreateNftExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,854	),855856	/// Extended data for create Fungible item.857	Fungible(858		#[derivative(Debug(format_with = "bounded::map_debug"))]859		BoundedBTreeMap<CrossAccountId, u128, ConstU32<MAX_ITEMS_PER_BATCH>>,860	),861862	/// Extended data for create ReFungible item in case of863	/// many tokens, each may have only one owner864	RefungibleMultipleItems(865		#[derivative(Debug(format_with = "bounded::vec_debug"))]866		BoundedVec<CreateRefungibleExData<CrossAccountId>, ConstU32<MAX_ITEMS_PER_BATCH>>,867	),868869	/// Extended data for create ReFungible item in case of870	/// single token, which may have many owners871	RefungibleMultipleOwners(CreateRefungibleExData<CrossAccountId>),872}873874impl CreateItemData {875	/// Get size of custom data.876	pub fn data_size(&self) -> usize {877		match self {878			CreateItemData::ReFungible(data) => data.const_data.len(),879			_ => 0,880		}881	}882}883884impl From<CreateNftData> for CreateItemData {885	fn from(item: CreateNftData) -> Self {886		CreateItemData::NFT(item)887	}888}889890impl From<CreateReFungibleData> for CreateItemData {891	fn from(item: CreateReFungibleData) -> Self {892		CreateItemData::ReFungible(item)893	}894}895896impl From<CreateFungibleData> for CreateItemData {897	fn from(item: CreateFungibleData) -> Self {898		CreateItemData::Fungible(item)899	}900}901902/// Token's address, dictated by its collection and token IDs.903#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]904#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]905// todo possibly rename to be used generally as an address pair906pub struct TokenChild {907	/// Token id.908	pub token: TokenId,909910	/// Collection id.911	pub collection: CollectionId,912}913914/// Collection statistics.915#[derive(Encode, Decode, MaxEncodedLen, PartialEq, Clone, Debug, TypeInfo)]916#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]917pub struct CollectionStats {918	/// Number of created items.919	pub created: u32,920921	/// Number of burned items.922	pub destroyed: u32,923924	/// Number of current items.925	pub alive: u32,926}927928/// This type works like [`PhantomData`] but supports generating _scale-info_ descriptions to generate node metadata.929#[derive(Encode, Decode, Clone, Debug)]930#[cfg_attr(feature = "std", derive(PartialEq))]931pub struct PhantomType<T>(core::marker::PhantomData<T>);932933impl<T: TypeInfo + 'static> TypeInfo for PhantomType<T> {934	type Identity = PhantomType<T>;935936	fn type_info() -> scale_info::Type {937		use scale_info::{938			Type, Path,939			build::{FieldsBuilder, UnnamedFields},940			type_params,941		};942		Type::builder()943			.path(Path::new("up_data_structs", "PhantomType"))944			.type_params(type_params!(T))945			.composite(<FieldsBuilder<UnnamedFields>>::default().field(|b| b.ty::<[T; 0]>()))946	}947}948impl<T> MaxEncodedLen for PhantomType<T> {949	fn max_encoded_len() -> usize {950		0951	}952}953954/// Bounded vector of bytes.955pub type BoundedBytes<S> = BoundedVec<u8, S>;956957/// Extra properties for external collections.958pub type AuxPropertyValue = BoundedBytes<ConstU32<MAX_AUX_PROPERTY_VALUE_LENGTH>>;959960/// Property key.961pub type PropertyKey = BoundedBytes<ConstU32<MAX_PROPERTY_KEY_LENGTH>>;962963/// Property value.964pub type PropertyValue = BoundedBytes<ConstU32<MAX_PROPERTY_VALUE_LENGTH>>;965966/// Property permission.967#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]968#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]969pub struct PropertyPermission {970	/// Permission to change the property and property permission.971	/// 972	/// If it **false** then you can not change corresponding property even if [`collection_admin`] and [`token_owner`] are **true**.973	pub mutable: bool,974975	/// Change permission for the collection administrator.976	pub collection_admin: bool,977978	/// Permission to change the property for the owner of the token.979	pub token_owner: bool,980}981982impl PropertyPermission {983	/// Creates mutable property permission but changes restricted for collection admin and token owner.984	pub fn none() -> Self {985		Self {986			mutable: true,987			collection_admin: false,988			token_owner: false,989		}990	}991}992993/// Property is simpl key-value record.994#[derive(Encode, Decode, Debug, TypeInfo, Clone, PartialEq, MaxEncodedLen)]995#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]996pub struct Property {997	/// Property key.998	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]999	pub key: PropertyKey,10001001	/// Property value.1002	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]1003	pub value: PropertyValue,1004}10051006impl Into<(PropertyKey, PropertyValue)> for Property {1007	fn into(self) -> (PropertyKey, PropertyValue) {1008		(self.key, self.value)1009	}1010}10111012/// Record for proprty key permission.1013#[derive(Encode, Decode, TypeInfo, Debug, MaxEncodedLen, PartialEq, Clone)]1014#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]1015pub struct PropertyKeyPermission {1016	/// Key.1017	#[cfg_attr(feature = "serde1", serde(with = "bounded::vec_serde"))]1018	pub key: PropertyKey,10191020	/// Permission.1021	pub permission: PropertyPermission,1022}10231024impl Into<(PropertyKey, PropertyPermission)> for PropertyKeyPermission {1025	fn into(self) -> (PropertyKey, PropertyPermission) {1026		(self.key, self.permission)1027	}1028}10291030/// Errors for properties actions.1031#[derive(Debug)]1032pub enum PropertiesError {1033	/// The space allocated for properties has run out.1034	/// 1035	/// * Limit for colection - [`MAX_COLLECTION_PROPERTIES_SIZE`].1036	/// * Limit for token - [`MAX_TOKEN_PROPERTIES_SIZE`].1037	NoSpaceForProperty,10381039	/// The property limit has been reached.1040	/// 1041	/// * Limit - [`MAX_PROPERTIES_PER_ITEM`].1042	PropertyLimitReached,10431044	/// Property key contains not allowed character.1045	InvalidCharacterInPropertyKey,10461047	/// Property key length is too long.1048	/// 1049	/// * Limit - [`MAX_PROPERTY_KEY_LENGTH`].1050	PropertyKeyIsTooLong,10511052	/// Property key is empty.1053	EmptyPropertyKey,1054}10551056/// Marker for scope of property.1057/// 1058/// Scoped property can't be changed by user. Used for external collections.1059#[derive(Encode, Decode, MaxEncodedLen, TypeInfo, PartialEq, Clone, Copy)]1060pub enum PropertyScope {1061	None,1062	Rmrk,1063}10641065impl PropertyScope {1066	/// Apply scope to property key.1067	pub fn apply(self, key: PropertyKey) -> Result<PropertyKey, PropertiesError> {1068		let scope_str: &[u8] = match self {1069			Self::None => return Ok(key),1070			Self::Rmrk => b"rmrk",1071		};10721073		[scope_str, b":", key.as_slice()]1074			.concat()1075			.try_into()1076			.map_err(|_| PropertiesError::PropertyKeyIsTooLong)1077	}1078}10791080/// Trait for operate with properties.1081pub trait TrySetProperty: Sized {1082	type Value;10831084	/// Try to set property with scope.1085	fn try_scoped_set(1086		&mut self,1087		scope: PropertyScope,1088		key: PropertyKey,1089		value: Self::Value,1090	) -> Result<(), PropertiesError>;1091	1092	1093	/// Try to set property with scope from iterator.1094	fn try_scoped_set_from_iter<I, KV>(1095		&mut self,1096		scope: PropertyScope,1097		iter: I,1098	) -> Result<(), PropertiesError>1099	where1100		I: Iterator<Item = KV>,1101		KV: Into<(PropertyKey, Self::Value)>,1102	{1103		for kv in iter {1104			let (key, value) = kv.into();1105			self.try_scoped_set(scope, key, value)?;1106		}11071108		Ok(())1109	}11101111	/// Try to set property.1112	fn try_set(&mut self, key: PropertyKey, value: Self::Value) -> Result<(), PropertiesError> {1113		self.try_scoped_set(PropertyScope::None, key, value)1114	}1115	1116	/// Try to set property from iterator.1117	fn try_set_from_iter<I, KV>(&mut self, iter: I) -> Result<(), PropertiesError>1118	where1119		I: Iterator<Item = KV>,1120		KV: Into<(PropertyKey, Self::Value)>,1121	{1122		self.try_scoped_set_from_iter(PropertyScope::None, iter)1123	}1124}11251126/// Wrapped map for storing properties.1127#[derive(Encode, Decode, TypeInfo, Derivative, Clone, PartialEq, MaxEncodedLen)]1128#[derivative(Default(bound = ""))]1129pub struct PropertiesMap<Value>(1130	BoundedBTreeMap<PropertyKey, Value, ConstU32<MAX_PROPERTIES_PER_ITEM>>,1131);11321133impl<Value> PropertiesMap<Value> {1134	/// Create new property map.1135	pub fn new() -> Self {1136		Self(BoundedBTreeMap::new())1137	}11381139	/// Remove property from map.1140	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<Value>, PropertiesError> {1141		Self::check_property_key(key)?;11421143		Ok(self.0.remove(key))1144	}11451146	/// Get property with appropriate key from map.1147	pub fn get(&self, key: &PropertyKey) -> Option<&Value> {1148		self.0.get(key)1149	}11501151	/// Check if map contains key.1152	pub fn contains_key(&self, key: &PropertyKey) -> bool {1153		self.0.contains_key(key)1154	}1155	1156	/// Check if map contains key with key validation.1157	fn check_property_key(key: &PropertyKey) -> Result<(), PropertiesError> {1158		if key.is_empty() {1159			return Err(PropertiesError::EmptyPropertyKey);1160		}11611162		for byte in key.as_slice().iter() {1163			let byte = *byte;11641165			if !byte.is_ascii_alphanumeric() && byte != b'_' && byte != b'-' && byte != b'.' {1166				return Err(PropertiesError::InvalidCharacterInPropertyKey);1167			}1168		}11691170		Ok(())1171	}1172}11731174impl<Value> IntoIterator for PropertiesMap<Value> {1175	type Item = (PropertyKey, Value);1176	type IntoIter = <1177		BoundedBTreeMap<1178			PropertyKey,1179			Value,1180			ConstU32<MAX_PROPERTIES_PER_ITEM>1181		> as IntoIterator1182	>::IntoIter;11831184	fn into_iter(self) -> Self::IntoIter {1185		self.0.into_iter()1186	}1187}11881189impl<Value> TrySetProperty for PropertiesMap<Value> {1190	type Value = Value;11911192	fn try_scoped_set(1193		&mut self,1194		scope: PropertyScope,1195		key: PropertyKey,1196		value: Self::Value,1197	) -> Result<(), PropertiesError> {1198		Self::check_property_key(&key)?;11991200		let key = scope.apply(key)?;1201		self.01202			.try_insert(key, value)1203			.map_err(|_| PropertiesError::PropertyLimitReached)?;12041205		Ok(())1206	}1207}12081209/// Alias for property permissions map.1210pub type PropertiesPermissionMap = PropertiesMap<PropertyPermission>;12111212/// Wrapper for properties map with consumed space control.1213#[derive(Encode, Decode, TypeInfo, Clone, PartialEq, MaxEncodedLen)]1214pub struct Properties {1215	map: PropertiesMap<PropertyValue>,1216	consumed_space: u32,1217	space_limit: u32,1218}12191220impl Properties {1221	/// Create new properies container.1222	pub fn new(space_limit: u32) -> Self {1223		Self {1224			map: PropertiesMap::new(),1225			consumed_space: 0,1226			space_limit,1227		}1228	}12291230	/// Remove propery with appropiate key.1231	pub fn remove(&mut self, key: &PropertyKey) -> Result<Option<PropertyValue>, PropertiesError> {1232		let value = self.map.remove(key)?;12331234		if let Some(ref value) = value {1235			let value_len = value.len() as u32;1236			self.consumed_space -= value_len;1237		}12381239		Ok(value)1240	}12411242	/// Get property with appropriate key.1243	pub fn get(&self, key: &PropertyKey) -> Option<&PropertyValue> {1244		self.map.get(key)1245	}1246}12471248impl IntoIterator for Properties {1249	type Item = (PropertyKey, PropertyValue);1250	type IntoIter = <PropertiesMap<PropertyValue> as IntoIterator>::IntoIter;12511252	fn into_iter(self) -> Self::IntoIter {1253		self.map.into_iter()1254	}1255}12561257impl TrySetProperty for Properties {1258	type Value = PropertyValue;12591260	fn try_scoped_set(1261		&mut self,1262		scope: PropertyScope,1263		key: PropertyKey,1264		value: Self::Value,1265	) -> Result<(), PropertiesError> {1266		let value_len = value.len();12671268		if self.consumed_space as usize + value_len > self.space_limit as usize1269			&& !cfg!(feature = "runtime-benchmarks")1270		{1271			return Err(PropertiesError::NoSpaceForProperty);1272		}12731274		self.map.try_scoped_set(scope, key, value)?;12751276		self.consumed_space += value_len as u32;12771278		Ok(())1279	}1280}12811282/// Utility struct for using in `StorageMap`.1283pub struct CollectionProperties;12841285impl Get<Properties> for CollectionProperties {1286	fn get() -> Properties {1287		Properties::new(MAX_COLLECTION_PROPERTIES_SIZE)1288	}1289}12901291/// Utility struct for using in `StorageMap`.1292pub struct TokenProperties;12931294impl Get<Properties> for TokenProperties {1295	fn get() -> Properties {1296		Properties::new(MAX_TOKEN_PROPERTIES_SIZE)1297	}1298}12991300// RMRK1301// todo document?1302parameter_types! {1303	#[derive(PartialEq, TypeInfo)]1304	pub const RmrkStringLimit: u32 = 128;1305	#[derive(PartialEq)]1306	pub const RmrkCollectionSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1307	#[derive(PartialEq)]1308	pub const RmrkResourceSymbolLimit: u32 = 10;1309	#[derive(PartialEq)]1310	pub const RmrkBaseSymbolLimit: u32 = MAX_TOKEN_PREFIX_LENGTH;1311	#[derive(PartialEq)]1312	pub const RmrkKeyLimit: u32 = 32;1313	#[derive(PartialEq)]1314	pub const RmrkValueLimit: u32 = 256;1315	#[derive(PartialEq)]1316	pub const RmrkMaxCollectionsEquippablePerPart: u32 = 100;1317	#[derive(PartialEq)]1318	pub const MaxPropertiesPerTheme: u32 = 5;1319	#[derive(PartialEq)]1320	pub const RmrkPartsLimit: u32 = 25;1321	#[derive(PartialEq)]1322	pub const RmrkMaxPriorities: u32 = 25;1323	#[derive(PartialEq)]1324	pub const MaxResourcesOnMint: u32 = 100;1325}13261327impl From<RmrkCollectionId> for CollectionId {1328	fn from(id: RmrkCollectionId) -> Self {1329		Self(id)1330	}1331}13321333impl From<RmrkNftId> for TokenId {1334	fn from(id: RmrkNftId) -> Self {1335		Self(id)1336	}1337}13381339pub type RmrkCollectionInfo<AccountId> =1340	CollectionInfo<RmrkString, RmrkCollectionSymbol, AccountId>;1341pub type RmrkInstanceInfo<AccountId> = NftInfo<AccountId, Permill, RmrkString>;1342pub type RmrkResourceInfo = ResourceInfo<RmrkString, RmrkBoundedParts>;1343pub type RmrkPropertyInfo = PropertyInfo<RmrkKeyString, RmrkValueString>;1344pub type RmrkBaseInfo<AccountId> = BaseInfo<AccountId, RmrkString>;1345pub type BoundedEquippableCollectionIds =1346	BoundedVec<RmrkCollectionId, RmrkMaxCollectionsEquippablePerPart>;1347pub type RmrkPartType = PartType<RmrkString, BoundedEquippableCollectionIds>;1348pub type RmrkEquippableList = EquippableList<BoundedEquippableCollectionIds>;1349pub type RmrkThemeProperty = ThemeProperty<RmrkString>;1350pub type RmrkTheme = Theme<RmrkString, Vec<RmrkThemeProperty>>;1351pub type RmrkBoundedTheme = Theme<RmrkString, BoundedVec<RmrkThemeProperty, MaxPropertiesPerTheme>>;1352pub type RmrkResourceTypes = ResourceTypes<RmrkString, RmrkBoundedParts>;13531354pub type RmrkBasicResource = BasicResource<RmrkString>;1355pub type RmrkComposableResource = ComposableResource<RmrkString, RmrkBoundedParts>;1356pub type RmrkSlotResource = SlotResource<RmrkString>;13571358pub type RmrkString = BoundedVec<u8, RmrkStringLimit>;1359pub type RmrkCollectionSymbol = BoundedVec<u8, RmrkCollectionSymbolLimit>;1360pub type RmrkBaseSymbol = BoundedVec<u8, RmrkBaseSymbolLimit>;1361pub type RmrkKeyString = BoundedVec<u8, RmrkKeyLimit>;1362pub type RmrkValueString = BoundedVec<u8, RmrkValueLimit>;1363pub type RmrkBoundedResource = BoundedVec<u8, RmrkResourceSymbolLimit>;1364pub type RmrkBoundedParts = BoundedVec<RmrkPartId, RmrkPartsLimit>; // todo make sure it is needed13651366pub type RmrkRpcString = Vec<u8>;1367pub type RmrkThemeName = RmrkRpcString;1368pub type RmrkPropertyKey = RmrkRpcString;
modifiedprimitives/data-structs/src/mapping.rsdiffbeforeafterboth
--- a/primitives/data-structs/src/mapping.rs
+++ b/primitives/data-structs/src/mapping.rs
@@ -1,3 +1,21 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+//! This module contains mapping between different addresses.
+
 use core::marker::PhantomData;
 
 use sp_core::H160;
@@ -5,12 +23,19 @@
 use crate::{CollectionId, TokenId};
 use pallet_evm::account::CrossAccountId;
 
+/// Trait for mapping between token id and some `Address`.
 pub trait TokenAddressMapping<Address> {
+	/// Map token id to `Address`.
 	fn token_to_address(collection: CollectionId, token: TokenId) -> Address;
+
+	/// Map `Address` to token id.
 	fn address_to_token(address: &Address) -> Option<(CollectionId, TokenId)>;
+
+	/// Check is address for token.
 	fn is_token_address(address: &Address) -> bool;
 }
 
+/// Unit struct for mapping token id to/from *Evm address* represented by [`H160`].
 pub struct EvmTokenAddressMapping;
 
 /// 0xf8238ccfff8ed887463fd5e00000000100000002  - collection 1, token 2
@@ -46,6 +71,7 @@
 	}
 }
 
+/// Unit struct for mapping token id to/from [`CrossAccountId`].
 pub struct CrossTokenAddressMapping<A>(PhantomData<A>);
 
 impl<A, C: CrossAccountId<A>> TokenAddressMapping<C> for CrossTokenAddressMapping<A> {
modifiedprimitives/rpc/src/lib.rsdiffbeforeafterboth
--- a/primitives/rpc/src/lib.rs
+++ b/primitives/rpc/src/lib.rs
@@ -28,6 +28,7 @@
 
 sp_api::decl_runtime_apis! {
 	#[api_version(2)]
+	/// Trait for generate rpc.
 	pub trait UniqueApi<CrossAccountId, AccountId> where
 		AccountId: Decode,
 		CrossAccountId: pallet_evm::account::CrossAccountId<AccountId>,
@@ -35,36 +36,57 @@
 		#[changed_in(2)]
 		fn token_owner(collection: CollectionId, token: TokenId) -> Result<CrossAccountId>;
 
+		/// Get number of tokens in collection owned by account.
 		fn account_tokens(collection: CollectionId, account: CrossAccountId) -> Result<Vec<TokenId>>;
+
+		/// Number of existing tokens in collection.
 		fn collection_tokens(collection: CollectionId) -> Result<Vec<TokenId>>;
+
+		/// Check token exist.
 		fn token_exists(collection: CollectionId, token: TokenId) -> Result<bool>;
 
+		/// Get token owner.
 		fn token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>>;
+
+		/// Get real owner of nested token.
 		fn topmost_token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>>;
+
+		/// Get nested tokens for the specified item.
 		fn token_children(collection: CollectionId, token: TokenId) -> Result<Vec<TokenChild>>;
 
+		/// Get collection properties.
 		fn collection_properties(collection: CollectionId, properties: Option<Vec<Vec<u8>>>) -> Result<Vec<Property>>;
 
+		/// Get token properties.
 		fn token_properties(
 			collection: CollectionId,
 			token_id: TokenId,
 			properties: Option<Vec<Vec<u8>>>
 		) -> Result<Vec<Property>>;
 
+		/// Get permissions for token properties.
 		fn property_permissions(
 			collection: CollectionId,
 			properties: Option<Vec<Vec<u8>>>
 		) -> Result<Vec<PropertyKeyPermission>>;
 
+		/// Get token data.
 		fn token_data(
 			collection: CollectionId,
 			token_id: TokenId,
 			keys: Option<Vec<Vec<u8>>>
 		) -> Result<TokenData<CrossAccountId>>;
 
+		/// Total number of tokens in collection.
 		fn total_supply(collection: CollectionId) -> Result<u32>;
+
+		/// Get account balance for collection (sum of tokens pieces).
 		fn account_balance(collection: CollectionId, account: CrossAccountId) -> Result<u32>;
+		
+		/// Get account balance for specified token.
 		fn balance(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Result<u128>;
+
+		/// Amount of token pieces allowed to spend from granded account.
 		fn allowance(
 			collection: CollectionId,
 			sender: CrossAccountId,
@@ -72,14 +94,31 @@
 			token: TokenId,
 		) -> Result<u128>;
 
+		/// Get list of collection admins.
 		fn adminlist(collection: CollectionId) -> Result<Vec<CrossAccountId>>;
+
+		/// Get list of users that allowet to mint tikens in collection.
 		fn allowlist(collection: CollectionId) -> Result<Vec<CrossAccountId>>;
+
+		/// Check that user is in allowed list (see [`allowlist`]).
 		fn allowed(collection: CollectionId, user: CrossAccountId) -> Result<bool>;
+
+		/// Last minted token id.
 		fn last_token_id(collection: CollectionId) -> Result<TokenId>;
+
+		/// Get collection by id.
 		fn collection_by_id(collection: CollectionId) -> Result<Option<RpcCollection<AccountId>>>;
+
+		/// Get collection stats.
 		fn collection_stats() -> Result<CollectionStats>;
+
+		/// Get the number of blocks through which sponsorship will be available.
 		fn next_sponsored(collection: CollectionId, account: CrossAccountId, token: TokenId) -> Result<Option<u64>>;
+
+		/// Get effective colletion limits.
 		fn effective_collection_limits(collection_id: CollectionId) -> Result<Option<CollectionLimits>>;
+
+		/// Get total pieces of token.
 		fn total_pieces(collection_id: CollectionId, token_id: TokenId) -> Result<Option<u128>>;
 		fn token_owners(collection: CollectionId, token: TokenId) -> Result<Vec<CrossAccountId>>;
 	}