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@0x/contracts-extensions: Maximum gas price contract
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moodlezoup
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@0x/contracts-extensions: Maximum gas price contract
jalextowle
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Mar 4, 2020
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| pragma solidity ^0.5.16; |
abandeali1
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Mar 4, 2020
| /// @dev Checks that the current transaction's gas price is less than | ||
| /// the specified maximum value. | ||
| /// @param data Encodes the maximum gas price. | ||
| function checkGasPrice(bytes calldata data) |
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Why not just take a uint256 here?
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didn't realize that would work 🙈
| */ | ||
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| pragma solidity ^0.5.16; | ||
| pragma experimental ABIEncoderV2; |
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I don't think we actually need to use ABIv2 here. I'd just run tests with/without to see if there are any gas differences.
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looks like without is slightly cheaper for the parametrized version
| * Encodes the given stop limit data parameters into StaticCall asset data so that it can be used | ||
| * in a 0x order. | ||
| */ | ||
| export function encodeMaxGasPriceStaticCallData(maxGasPriceContractAddress: string, maxGasPrice?: BigNumber): string { |
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Thank you for writing this helper 🙌
abandeali1
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Mar 5, 2020
| external | ||
| view |
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Why did we get rid of view here?
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oops that was a remnant of some tests
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Description
Contract includes a parameter-less version which uses a hard-coded max of 20 Gwei, and a version that allows makers to specify a custom max value.
Includes tooling for encoding/decoding the StaticCall asset data, as well as some basic unit tests
Testing instructions
Types of changes
Checklist:
[WIP]if necessary.