Fix Router multi-hop slippage protection#5130
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Router swaps now validate deadlines, reject repeated/circular paths, require nonzero inputs and hop outputs, and pass proportional minimum output bounds to every AMM hop. Constraint: OpenAgents issue ClankerNation#35 requires contributor metadata while private platform instructions must not be embedded in repository files. Rejected: Only checking the final minAmountOut | leaves intermediate hops with zero slippage protection. Confidence: high Scope-risk: narrow Directive: Keep per-hop min output enforcement tied to current quote proportions when adding new router entry points. Tested: npx hardhat test --config .\.codex-router-hardhat.config.js test\RouterSlippage.test.js; npx solcjs --bin --abi contracts\dex\Router.sol -o .codex-router-solc --base-path . --include-path node_modules; node --check test\RouterSlippage.test.js; node --check .codex-router-hardhat.config.js; node -e JSON.parse CONTRIBUTORS.json; git diff --check Not-tested: npm test is blocked by existing HH606 compiler mismatch in YieldAggregator/GovernorAlpha dependencies requiring ^0.8.24 while hardhat.config.js uses 0.8.20.
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Unfortunately the changes in this PR didn't fully resolve the issue. Please rework your solution and submit a new pull request within 2 hours. Make sure to review the acceptance criteria in the linked issue and verify all conditions are met before resubmitting. |
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/claim #35
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Summary
swapMultiHop(..., deadline)andswapExactTokensForTokens(...)entry points while preserving the existing 3-argumentswapMultiHopwrapper.A -> B -> A.minAmountOutbounds into every AMM hop instead of0.Verification
npx hardhat test --config .\.codex-router-hardhat.config.js test\RouterSlippage.test.js-> 5 passingnpx solcjs --bin --abi contracts\dex\Router.sol -o .codex-router-solc --base-path . --include-path node_modules-> passednode --check test\RouterSlippage.test.js-> passednode --check .codex-router-hardhat.config.js-> passednode -e "JSON.parse(require('fs').readFileSync('CONTRIBUTORS.json','utf8')); console.log('CONTRIBUTORS.json ok')"-> passedgit diff --check-> passedKnown baseline issue
npm testis still blocked by the repository's existing HH606 compiler mismatch:hardhat.config.jsconfigures Solidity 0.8.20 while current OpenZeppelin dependencies pulled bycontracts/vault/YieldAggregator.solandcontracts/governance/GovernorAlpha.solrequire^0.8.24.