Struct pool_xyk::pallet::Pallet

impl<T: Config> Pallet<T>

pub fn calculate_quote( amount_a: &Balance, reserve_a: &Balance, reserve_b: &Balance ) -> Result<Balance, DispatchError>

Given some amount of an asset and pair reserves, returns an equivalent amount of the other asset.

pub fn calculate_optimal_deposit( _total_supply: Balance, reserve_a: Balance, reserve_b: Balance, amount_a_desired: Balance, amount_b_desired: Balance, amount_a_min: Balance, amount_b_min: Balance ) -> Result<(Balance, Balance), DispatchError>

Calculate optimal deposit using pool reserves and desired value. Pool reserves used to calculate it and quote, so important that information about pool reserves is used. Only one side is corrected, better is selected.

pub fn calc_deposit_liquidity_1( total_supply: Balance, reserve_a: Balance, reserve_b: Balance, amount_a_desired: Balance, amount_b_desired: Balance, amount_a_min: Balance, amount_b_min: Balance ) -> Result<(Balance, Balance, Balance), DispatchError>

Additional function to calculate deposit liquidity, that using total_supply to calculate amount of pool tokens (liquidity markers).

pub fn calc_output_for_exact_input( fee_fraction: Fixed, get_fee_from_destination: bool, x: &Balance, y: &Balance, x_in: &Balance, deduce_fee: bool ) -> Result<(Balance, Balance), DispatchError>

Calulate (y_output,fee) pair where fee can be fee_of_y1 or fee_of_x_in, and output is without fee.

pub fn calc_input_for_exact_output( fee_fraction: Fixed, get_fee_from_destination: bool, x: &Balance, y: &Balance, y_out: &Balance, deduce_fee: bool ) -> Result<(Balance, Balance), DispatchError>

Calulate (x_input,fee) pair where fee can be fee_of_y1 or fee_of_x_in, and input is without fee.

pub fn get_base_asset_part_from_pool_account( pool_acc: &T::AccountId, trading_pair: &TradingPair<AssetIdOf<T>>, liq_amount: Balance ) -> Result<Balance, DispatchError>

impl<T: Config> Pallet<T>

pub fn decide_is_fee_from_destination( base_asset_id: &<T as Config>::AssetId, asset_a: &<T as Config>::AssetId, asset_b: &<T as Config>::AssetId ) -> Result<bool, DispatchError>

pub fn get_fee_account( tech_acc: &<T as Config>::TechAccountId ) -> Result<<T as Config>::TechAccountId, DispatchError>

pub fn is_fee_account_valid_for( _asset_id: <T as Config>::AssetId, tech_acc: &<T as Config>::TechAccountId, fee_acc: &<T as Config>::TechAccountId ) -> DispatchResult

pub fn is_pool_account_valid_for( _asset_id: <T as Config>::AssetId, tech_acc: &<T as Config>::TechAccountId ) -> DispatchResult

pub fn tech_account_from_dex_and_asset_pair( dex_id: T::DEXId, asset_a: T::AssetId, asset_b: T::AssetId ) -> Result<(TradingPair<<T as Config>::TechAssetId>, <T as Config>::TechAccountId), DispatchError>

pub fn ensure_trading_pair_is_not_restricted( tpair: &TradingPair<T::AssetId> ) -> Result<(), DispatchError>

pub fn get_bounds_from_swap_amount( swap_amount: SwapAmount<Balance> ) -> Result<(Bounds<Balance>, Bounds<Balance>), DispatchError>

pub fn burn( pool_account: &AccountIdOf<T>, user_account: &AccountIdOf<T>, pool_tokens: Balance ) -> Result<(), DispatchError>

pub fn mint( pool_account: &AccountIdOf<T>, user_account: &AccountIdOf<T>, pool_tokens: Balance ) -> Result<(), DispatchError>

pub fn strict_sort_pair( base_asset_id: &T::AssetId, asset_a: &T::AssetId, asset_b: &T::AssetId ) -> Result<TradingPair<T::AssetId>, DispatchError>

Sort assets into base and target assets of trading pair, if none of assets is base then return error.

impl<T: Config> Pallet<T>

pub fn deposit_liquidity( origin: OriginFor<T>, dex_id: <T as Config>::DEXId, input_asset_a: <T as Config>::AssetId, input_asset_b: <T as Config>::AssetId, input_a_desired: Balance, input_b_desired: Balance, input_a_min: Balance, input_b_min: Balance ) -> DispatchResultWithPostInfo

pub fn withdraw_liquidity( origin: OriginFor<T>, dex_id: <T as Config>::DEXId, output_asset_a: <T as Config>::AssetId, output_asset_b: <T as Config>::AssetId, marker_asset_desired: Balance, output_a_min: Balance, output_b_min: Balance ) -> DispatchResultWithPostInfo

pub fn initialize_pool( origin: OriginFor<T>, dex_id: <T as Config>::DEXId, asset_a: <T as Config>::AssetId, asset_b: <T as Config>::AssetId ) -> DispatchResultWithPostInfo

impl<T: Config> Pallet<T>

pub fn reserves<KArg1, KArg2>(k1: KArg1, k2: KArg2) -> (Balance, Balance)where KArg1: EncodeLike<T::AssetId>, KArg2: EncodeLike<T::AssetId>,

Updated after last liquidity change operation. [Base Asset Id (XOR) -> Target Asset Id => (Base Balance, Target Balance)]. This storage records is not used as source of information, but used as quick cache for information that comes from balances for assets from technical accounts. For example, communication with technical accounts and their storage is not needed, and this pair to balance cache can be used quickly.

impl<T: Config> Pallet<T>

pub fn pool_providers<KArg1, KArg2>(k1: KArg1, k2: KArg2) -> Option<Balance>where KArg1: EncodeLike<AccountIdOf<T>>, KArg2: EncodeLike<AccountIdOf<T>>,

Liquidity providers of particular pool. Pool account => Liquidity provider account => Pool token balance

impl<T: Config> Pallet<T>

pub fn account_pools<KArg1, KArg2>( k1: KArg1, k2: KArg2 ) -> BTreeSet<<T as Config>::AssetId>where KArg1: EncodeLike<AccountIdOf<T>>, KArg2: EncodeLike<<T as Config>::AssetId>,

Set of pools in which accounts have some share. Liquidity provider account => Target Asset of pair (assuming base asset is XOR)

impl<T: Config> Pallet<T>

pub fn properties<KArg1, KArg2>( k1: KArg1, k2: KArg2 ) -> Option<(T::AccountId, T::AccountId)>where KArg1: EncodeLike<T::AssetId>, KArg2: EncodeLike<T::AssetId>,

Properties of particular pool. Base Asset => Target Asset => (Reserves Account Id, Fees Account Id)

impl<T: Config> Pallet<T>

pub fn initialize_pool_unchecked( _source: <T as Config>::AccountId, dex_id: <T as Config>::DEXId, asset_a: <T as Config>::AssetId, asset_b: <T as Config>::AssetId ) -> Result<(TradingPair<<T as Config>::TechAssetId>, <T as Config>::TechAccountId, <T as Config>::TechAccountId), DispatchError>

pub fn deposit_liquidity_unchecked( source: <T as Config>::AccountId, dex_id: <T as Config>::DEXId, input_asset_a: <T as Config>::AssetId, input_asset_b: <T as Config>::AssetId, input_a_desired: Balance, input_b_desired: Balance, input_a_min: Balance, input_b_min: Balance ) -> DispatchResult

pub fn get_pool_trading_pair( pool_account: &T::AccountId ) -> Result<TradingPair<T::AssetId>, DispatchError>

Trait Implementations§

fn clone(&self) -> Self

Returns a copy of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl<T> Debug for Pallet<T>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl<T: Config> GetPoolReserves<<T as Config>::AssetId> for Pallet<T>

fn reserves( base_asset: &T::AssetId, other_asset: &T::AssetId ) -> (Balance, Balance)

Returns the amount of the (base_asset, other_asset) pair reserves in a liquidity pool or the default value if such pair doesn’t exist.

impl<T: Config> GetStorageVersion for Pallet<T>

fn current_storage_version() -> StorageVersion

Returns the current storage version as supported by the pallet.

fn on_chain_storage_version() -> StorageVersion

Returns the on-chain storage version of the pallet as stored in the storage.

impl<T: Config> Hooks<<T as Config>::BlockNumber> for Pallet<T>

fn on_runtime_upgrade() -> Weight

Perform a module upgrade. Read more

fn on_finalize(_n: BlockNumber)

The block is being finalized. Implement to have something happen.

fn on_idle(_n: BlockNumber, _remaining_weight: Weight) -> Weight

This will be run when the block is being finalized (before on_finalize). Implement to have something happen using the remaining weight. Will not fire if the remaining weight is 0. Return the weight used, the hook will subtract it from current weight used and pass the result to the next on_idle hook if it exists.

fn on_initialize(_n: BlockNumber) -> Weight

The block is being initialized. Implement to have something happen. Read more

fn offchain_worker(_n: BlockNumber)

Implementing this function on a module allows you to perform long-running tasks that make (by default) validators generate transactions that feed results of those long-running computations back on chain. Read more

fn integrity_test()

Run integrity test. Read more

impl<T: Config> IntegrityTest for Pallet<T>

fn integrity_test()

Run integrity test. Read more

impl<T: Config> LiquiditySource<<T as Config>::DEXId, <T as Config>::AccountId, <T as Config>::AssetId, u128, DispatchError> for Pallet<T>

fn can_exchange( dex_id: &T::DEXId, input_asset_id: &T::AssetId, output_asset_id: &T::AssetId ) -> bool

Check if liquidity source provides an exchange from given input asset to output asset.

fn quote( dex_id: &T::DEXId, input_asset_id: &T::AssetId, output_asset_id: &T::AssetId, amount: QuoteAmount<Balance>, deduce_fee: bool ) -> Result<(SwapOutcome<Balance>, Weight), DispatchError>

Get spot price of tokens based on desired amount.

fn exchange( sender: &T::AccountId, receiver: &T::AccountId, dex_id: &T::DEXId, input_asset_id: &T::AssetId, output_asset_id: &T::AssetId, swap_amount: SwapAmount<Balance> ) -> Result<(SwapOutcome<Balance>, Weight), DispatchError>

Perform exchange based on desired amount.

fn check_rewards( _target_id: &T::DEXId, _input_asset_id: &T::AssetId, _output_asset_id: &T::AssetId, _input_amount: Balance, _output_amount: Balance ) -> Result<(Vec<(Balance, T::AssetId, RewardReason)>, Weight), DispatchError>

Get rewards that are given for perfoming given exchange.

fn quote_without_impact( dex_id: &T::DEXId, input_asset_id: &T::AssetId, output_asset_id: &T::AssetId, amount: QuoteAmount<Balance>, deduce_fee: bool ) -> Result<SwapOutcome<Balance>, DispatchError>

Get spot price of tokens based on desired amount, ignoring non-linearity of underlying liquidity source.

fn quote_weight() -> Weight

Get weight of quote

fn exchange_weight() -> Weight

Get weight of exchange

fn check_rewards_weight() -> Weight

Get weight of exchange

impl<T: Config> OffchainWorker<<T as Config>::BlockNumber> for Pallet<T>

fn offchain_worker(n: <T as Config>::BlockNumber)

This function is being called after every block import (when fully synced). Read more

impl<T: Config> OnFinalize<<T as Config>::BlockNumber> for Pallet<T>

fn on_finalize(n: <T as Config>::BlockNumber)

The block is being finalized. Implement to have something happen. Read more

impl<T: Config> OnGenesis for Pallet<T>

fn on_genesis()

Something that should happen at genesis.

impl<T: Config> OnIdle<<T as Config>::BlockNumber> for Pallet<T>

fn on_idle(n: <T as Config>::BlockNumber, remaining_weight: Weight) -> Weight

The block is being finalized. Implement to have something happen in case there is leftover weight. Check the passed remaining_weight to make sure it is high enough to allow for your pallet’s extra computation. Read more

impl<T: Config> OnInitialize<<T as Config>::BlockNumber> for Pallet<T>

fn on_initialize(n: <T as Config>::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen. Read more

impl<T: Config> OnRuntimeUpgrade for Pallet<T>

fn on_runtime_upgrade() -> Weight

Perform a module upgrade. Read more

impl<T: Config> PalletInfoAccess for Pallet<T>

fn index() -> usize

Index of the pallet as configured in the runtime.

fn name() -> &'static str

Name of the pallet as configured in the runtime.

fn module_name() -> &'static str

Name of the Rust module containing the pallet.

fn crate_version() -> CrateVersion

Version of the crate containing the pallet.

impl<T: Config> PalletsInfoAccess for Pallet<T>

fn count() -> usize

The number of pallets’ information that this type represents. Read more

fn infos() -> Vec<PalletInfoData> ⓘ

All of the pallets’ information that this type represents.

impl<T> PartialEq<Pallet<T>> for Pallet<T>

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Config> PoolXykPallet<<T as Config>::AccountId, <T as Config>::AssetId> for Pallet<T>

type PoolProvidersOutput = PrefixIterator<(<T as Config>::AccountId, u128), ()>

type PoolPropertiesOutput = PrefixIterator<(<T as Config>::AssetId, <T as Config>::AssetId, (<T as Config>::AccountId, <T as Config>::AccountId)), ()>

fn pool_providers(pool_account: &T::AccountId) -> Self::PoolProvidersOutput

fn total_issuance(pool_account: &T::AccountId) -> Result<Balance, DispatchError>

fn all_properties() -> Self::PoolPropertiesOutput

fn properties_of_pool( base_asset_id: T::AssetId, target_asset_id: T::AssetId ) -> Option<(T::AccountId, T::AccountId)>

fn balance_of_pool_provider( pool_account: T::AccountId, liquidity_provider_account: T::AccountId ) -> Option<Balance>

fn transfer_lp_tokens( pool_account: T::AccountId, asset_a: T::AssetId, asset_b: T::AssetId, base_account_id: T::AccountId, target_account_id: T::AccountId, pool_tokens: Balance ) -> Result<(), DispatchError>

impl<T: Config> StorageInfoTrait for Pallet<T>

fn storage_info() -> Vec<StorageInfo> ⓘ

impl<T: Config> WhitelistedStorageKeys for Pallet<T>

fn whitelisted_storage_keys() -> Vec<TrackedStorageKey> ⓘ

Returns a Vec<TrackedStorageKey> indicating the storage keys that should be whitelisted during benchmarking. This means that those keys will be excluded from the benchmarking performance calculation.

impl<T> Eq for Pallet<T>

Auto Trait Implementations§

impl<T> RefUnwindSafe for Pallet<T>where T: RefUnwindSafe,

impl<T> Send for Pallet<T>where T: Send,

impl<T> Sync for Pallet<T>where T: Sync,

impl<T> Unpin for Pallet<T>where T: Unpin,

impl<T> UnwindSafe for Pallet<T>where T: UnwindSafe,

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impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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Immutably borrows from an owned value. Read more

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Mutably borrows from an owned value. Read more

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self>where Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

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Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Conv for T

fn conv<T>(self) -> Twhere Self: Into<T>,

Converts self into T using Into<T>. Read more

impl<T> Downcast for Twhere T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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fn __clone_box(&self, _: Private) -> *mut ()

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Compare self to key and return true if they are equal.

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

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fn fmt_binary(self) -> FmtBinary<Self>where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

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Causes self to use its Octal implementation when Debug-formatted.

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Causes self to use its UpperExp implementation when Debug-formatted.

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Causes self to use its UpperHex implementation when Debug-formatted.

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Formats each item in a sequence. Read more

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Cast reference.

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Cast reference.

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Cast mutable reference.

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Get a reference to the inner from the outer.

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Get a mutable reference to the inner from the outer.

impl<T> PalletVersionToStorageVersionHelper for Twhere T: GetStorageVersion + PalletInfoAccess,

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Mutably borrows self and passes that borrow into the pipe function. Read more

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Borrows self, then passes self.borrow() into the pipe function. Read more

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The type returned in the event of a conversion error.

const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for Twhere U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source§

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

fn unchecked_into(self) -> T

The counterpart to unchecked_from.

impl<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,

fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> JsonSchemaMaybe for T

impl<T> MaybeDebug for Twhere T: Debug,

impl<T> MaybeDebug for Twhere T: Debug,

impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,