tycho-simulation 0.447.1

Provides tools for interacting with protocol states, calculating spot prices, and quoting token swaps.
Documentation 
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use std::collections::HashSet;

use hex_literal::hex;
use tycho_common::{models::Chain, Bytes};

/// The chain's curated USD stablecoins: the recommended `usd_quote_tokens` for the feed builders
/// that normalize book TVL from price levels into USD before applying the threshold. `None` for
/// chains without a curated set — pass your own then.
pub fn usd_stablecoins_for_chain(chain: Chain) -> Option<HashSet<Bytes>> {
    let tokens = match chain {
        Chain::Ethereum => HashSet::from([
            Bytes::from(hex!("a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48")), // USDC
            Bytes::from(hex!("dac17f958d2ee523a2206206994597c13d831ec7")), // USDT
            Bytes::from(hex!("6b175474e89094c44da98b954eedeac495271d0f")), // DAI
            Bytes::from(hex!("4c9EDD5852cd905f086C759E8383e09bff1E68B3")), // USDe
        ]),
        Chain::Base => HashSet::from([
            Bytes::from(hex!("833589fcd6edb6e08f4c7c32d4f71b54bda02913")), // USDC
            Bytes::from(hex!("fde4c96c8593536e31f229ea8f37b2ada2699bb2")), // USDT
        ]),
        Chain::Arbitrum => HashSet::from([
            Bytes::from(hex!("af88d065e77c8cC2239327C5EDb3A432268e5831")), // USDC
            Bytes::from(hex!("Fd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9")), // USDT (USD₮0)
        ]),
        Chain::Bsc => HashSet::from([
            Bytes::from(hex!("55d398326f99059fF775485246999027B3197955")), // USDT
            Bytes::from(hex!("8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d")), // USDC
        ]),
        Chain::Robinhood => HashSet::from([
            Bytes::from(hex!("5fc5360D0400a0Fd4f2af552ADD042D716F1d168")), // USDG
        ]),
        _ => return None,
    };
    Some(tokens)
}