astroport-pair 2.0.1

The Astroport constant product pool contract implementation
Documentation 
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use astroport::{asset::MINIMUM_LIQUIDITY_AMOUNT, pair::MAX_FEE_SHARE_BPS};
use cosmwasm_std::{OverflowError, StdError, Uint128};
use cw_utils::{ParseReplyError, PaymentError};
use thiserror::Error;

/// This enum describes pair contract errors
#[derive(Error, Debug, PartialEq)]
pub enum ContractError {
    #[error("{0}")]
    Std(#[from] StdError),

    #[error("{0}")]
    PaymentError(#[from] PaymentError),

    #[error("{0}")]
    ParseReplyError(#[from] ParseReplyError),

    #[error("Unauthorized")]
    Unauthorized {},

    #[error("CW20 tokens can be swapped via Cw20::Send message only")]
    Cw20DirectSwap {},

    #[error("Operation non supported")]
    NonSupported {},

    #[error("Event of zero transfer")]
    InvalidZeroAmount {},

    #[error("Operation exceeds max spread limit")]
    MaxSpreadAssertion {},

    #[error("Provided spread amount exceeds allowed limit")]
    AllowedSpreadAssertion {},

    #[error("Operation exceeds max splippage tolerance")]
    MaxSlippageAssertion {},

    #[error("Slippage is more than expected: received {0}, expected {1} LP tokens")]
    ProvideSlippageViolation(Uint128, Uint128),

    #[error("Received {received} {asset_name} but expected {expected}")]
    WithdrawSlippageViolation {
        asset_name: String,
        received: Uint128,
        expected: Uint128,
    },

    #[error("Wrong asset length: expected {expected}, actual {actual}")]
    WrongAssetLength { expected: usize, actual: usize },

    #[error("Doubling assets in asset infos")]
    DoublingAssets {},

    #[error("Asset mismatch between the requested and the stored asset in contract")]
    AssetMismatch {},

    #[error("Pair type mismatch. Check factory pair configs")]
    PairTypeMismatch {},

    #[error("Incentives address is not set in factory. Cannot auto-stake")]
    AutoStakeError {},

    #[error("Initial liquidity must be more than {}", MINIMUM_LIQUIDITY_AMOUNT)]
    MinimumLiquidityAmountError {},

    #[error("Failed to migrate the contract")]
    MigrationError {},

    #[error("Failed to parse or process reply message")]
    FailedToParseReply {},

    #[error(
        "Fee share is 0 or exceeds maximum allowed value of {} bps",
        MAX_FEE_SHARE_BPS
    )]
    FeeShareOutOfBounds {},
}

impl From<OverflowError> for ContractError {
    fn from(o: OverflowError) -> Self {
        StdError::from(o).into()
    }
}