Submission Details
Severity:
[G-02] - Push `tokenAddresses` array outside of the loop once in the counstructor to save deployment gas.
Details
In the constructor inside the for loop each time we are pushing the token address to s_collateralTokens array, which increases gas cost. We can initialize the whole array after the loop to save gas.
https://github.com/Cyfrin/2023-07-foundry-defi-stablecoin/blob/main/src/DSCEngine.sol#L120
| Calculation Type | Before | After | Gas Saved |
|---|---|---|---|
| Avg | 1004332 | 1004238 | 94 |
// For example ETH / USD, BTC / USD, MKR / USD, etc
for (uint256 i = 0; i < tokenAddresses.length; i++) {
s_priceFeeds[tokenAddresses[i]] = priceFeedAddresses[i];
- s_collateralTokens.push(tokenAddresses[i]);
}
+ s_collateralTokens = tokenAddresses;
i_dsc = DecentralizedStableCoin(dscAddress);
Prize pool breakdown
Total prize
15,000 USDC
nSLOC
23664 USDC / LOC
14,000 USDC
1,000 USDC
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