979cdf7437
--- don't change below this line --- ENG-4063 Took 57 minutes Took 17 seconds Took 45 seconds
47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
use std::str::FromStr;
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use alloy_primitives::U256;
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use tycho_core::Bytes;
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use crate::encoding::{
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errors::EncodingError,
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user_approvals_manager::{Approval, UserApprovalsManager},
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};
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#[allow(dead_code)]
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pub struct Permit2 {
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pub address: Bytes,
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}
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#[allow(dead_code)]
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impl Permit2 {
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pub fn new() -> Result<Self, EncodingError> {
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Ok(Self {
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address: Bytes::from_str("0x000000000022D473030F116dDEE9F6B43aC78BA3")
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.map_err(|_| EncodingError::FatalError("Permit2 address not valid".to_string()))?,
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})
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}
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fn get_allowance_data(
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&self,
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_user: Bytes,
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_router_address: Bytes,
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_token: Bytes,
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) -> (U256, u64, U256) {
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// get allowance data (if it exists) and the nonce
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// returns permitAmount, expiration, nonce
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todo!()
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}
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}
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impl UserApprovalsManager for Permit2 {
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fn encode_approvals(&self, _approvals: Vec<Approval>) -> Vec<Vec<u8>> {
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// calls get_allowance_data to get nonce
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// checks if we are not permitted already
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// puts data into a list of PermitSingles
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// adds the nonce and the expiration (uniswap recommends
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// 30 days for expiration) signs data
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// returns encoded data
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todo!()
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}
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}
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