calculate fair price for lp token #1140
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xlc
approved these changes
Jun 28, 2021
| @@ -219,3 +217,40 @@ impl<T: Config> PriceProvider<CurrencyId> for Pallet<T> { | |||
| <Pallet<T>>::deposit_event(Event::UnlockPrice(currency_id)); | |||
| } | |||
| } | |||
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| /// https://en.wikipedia.org/wiki/Integer_square_root | |||
| fn integer_sqrt(n: U256) -> U256 { | |||
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add TODO to use paritytech/parity-common#554 once it is available
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@qwer951123 @RomeroYang @StrawberryFlavor need to update sdk and front end |
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according to https://blog.alphafinance.io/fair-lp-token-pricing/ , the fair price is determined by the external feed price(both token_0 and token_1) and the invariant(pool_0 * pool_1) of the liquidity pool to prevent the manipulatable attack .