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| // SPDX-License-Identifier: MIT | ||
| pragma solidity 0.8.20; | ||
|
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| /// @title Multicall3 | ||
| /// @notice Aggregate results from multiple function calls | ||
| /// @dev Multicall & Multicall2 backwards-compatible | ||
| /// @dev Aggregate methods are marked `payable` to save 24 gas per call | ||
| /// @author Michael Elliot <[email protected]> | ||
| /// @author Joshua Levine <[email protected]> | ||
| /// @author Nick Johnson <[email protected]> | ||
| /// @author Andreas Bigger <[email protected]> | ||
| /// @author Matt Solomon <[email protected]> | ||
| contract Multicall3 { | ||
| // add this to be excluded from coverage report | ||
| function test() internal virtual {} | ||
|
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| struct Call { | ||
| address target; | ||
| bytes callData; | ||
| } | ||
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| struct Call3 { | ||
| address target; | ||
| bool allowFailure; | ||
| bytes callData; | ||
| } | ||
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| struct Call3Value { | ||
| address target; | ||
| bool allowFailure; | ||
| uint256 value; | ||
| bytes callData; | ||
| } | ||
|
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| struct Result { | ||
| bool success; | ||
| bytes returnData; | ||
| } | ||
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| /// @notice Backwards-compatible call aggregation with Multicall | ||
| /// @param calls An array of Call structs | ||
| /// @return blockNumber The block number where the calls were executed | ||
| /// @return returnData An array of bytes containing the responses | ||
| function aggregate(Call[] calldata calls) public payable returns (uint256 blockNumber, bytes[] memory returnData) { | ||
| blockNumber = block.number; | ||
| uint256 length = calls.length; | ||
| returnData = new bytes[](length); | ||
| Call calldata call; | ||
| for (uint256 i = 0; i < length; ) { | ||
| bool success; | ||
| call = calls[i]; | ||
| (success, returnData[i]) = call.target.call(call.callData); | ||
| require(success, "Multicall3: call failed"); | ||
| unchecked { | ||
| ++i; | ||
| } | ||
| } | ||
| } | ||
|
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| /// @notice Backwards-compatible with Multicall2 | ||
| /// @notice Aggregate calls without requiring success | ||
| /// @param requireSuccess If true, require all calls to succeed | ||
| /// @param calls An array of Call structs | ||
| /// @return returnData An array of Result structs | ||
| function tryAggregate( | ||
| bool requireSuccess, | ||
| Call[] calldata calls | ||
| ) public payable returns (Result[] memory returnData) { | ||
| uint256 length = calls.length; | ||
| returnData = new Result[](length); | ||
| Call calldata call; | ||
| for (uint256 i = 0; i < length; ) { | ||
| Result memory result = returnData[i]; | ||
| call = calls[i]; | ||
| (result.success, result.returnData) = call.target.call(call.callData); | ||
| if (requireSuccess) require(result.success, "Multicall3: call failed"); | ||
| unchecked { | ||
| ++i; | ||
| } | ||
| } | ||
| } | ||
|
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| /// @notice Backwards-compatible with Multicall2 | ||
| /// @notice Aggregate calls and allow failures using tryAggregate | ||
| /// @param calls An array of Call structs | ||
| /// @return blockNumber The block number where the calls were executed | ||
| /// @return blockHash The hash of the block where the calls were executed | ||
| /// @return returnData An array of Result structs | ||
| function tryBlockAndAggregate( | ||
| bool requireSuccess, | ||
| Call[] calldata calls | ||
| ) public payable returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData) { | ||
| blockNumber = block.number; | ||
| blockHash = blockhash(block.number); | ||
| returnData = tryAggregate(requireSuccess, calls); | ||
| } | ||
|
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| /// @notice Backwards-compatible with Multicall2 | ||
| /// @notice Aggregate calls and allow failures using tryAggregate | ||
| /// @param calls An array of Call structs | ||
| /// @return blockNumber The block number where the calls were executed | ||
| /// @return blockHash The hash of the block where the calls were executed | ||
| /// @return returnData An array of Result structs | ||
| function blockAndAggregate( | ||
| Call[] calldata calls | ||
| ) public payable returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData) { | ||
| (blockNumber, blockHash, returnData) = tryBlockAndAggregate(true, calls); | ||
| } | ||
|
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| /// @notice Aggregate calls, ensuring each returns success if required | ||
| /// @param calls An array of Call3 structs | ||
| /// @return returnData An array of Result structs | ||
| function aggregate3(Call3[] calldata calls) public payable returns (Result[] memory returnData) { | ||
| uint256 length = calls.length; | ||
| returnData = new Result[](length); | ||
| Call3 calldata calli; | ||
| for (uint256 i = 0; i < length; ) { | ||
| Result memory result = returnData[i]; | ||
| calli = calls[i]; | ||
| (result.success, result.returnData) = calli.target.call(calli.callData); | ||
| assembly { | ||
| // Revert if the call fails and failure is not allowed | ||
| // `allowFailure := calldataload(add(calli, 0x20))` and `success := mload(result)` | ||
| if iszero(or(calldataload(add(calli, 0x20)), mload(result))) { | ||
| // set "Error(string)" signature: bytes32(bytes4(keccak256("Error(string)"))) | ||
| mstore(0x00, 0x08c379a000000000000000000000000000000000000000000000000000000000) | ||
| // set data offset | ||
| mstore(0x04, 0x0000000000000000000000000000000000000000000000000000000000000020) | ||
| // set length of revert string | ||
| mstore(0x24, 0x0000000000000000000000000000000000000000000000000000000000000017) | ||
| // set revert string: bytes32(abi.encodePacked("Multicall3: call failed")) | ||
| mstore(0x44, 0x4d756c746963616c6c333a2063616c6c206661696c6564000000000000000000) | ||
| revert(0x00, 0x64) | ||
| } | ||
| } | ||
| unchecked { | ||
| ++i; | ||
| } | ||
| } | ||
| } | ||
|
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| /// @notice Aggregate calls with a msg value | ||
| /// @notice Reverts if msg.value is less than the sum of the call values | ||
| /// @param calls An array of Call3Value structs | ||
| /// @return returnData An array of Result structs | ||
| function aggregate3Value(Call3Value[] calldata calls) public payable returns (Result[] memory returnData) { | ||
| uint256 valAccumulator; | ||
| uint256 length = calls.length; | ||
| returnData = new Result[](length); | ||
| Call3Value calldata calli; | ||
| for (uint256 i = 0; i < length; ) { | ||
| Result memory result = returnData[i]; | ||
| calli = calls[i]; | ||
| uint256 val = calli.value; | ||
| // Humanity will be a Type V Kardashev Civilization before this overflows - andreas | ||
| // ~ 10^25 Wei in existence << ~ 10^76 size uint fits in a uint256 | ||
| unchecked { | ||
| valAccumulator += val; | ||
| } | ||
| (result.success, result.returnData) = calli.target.call{value: val}(calli.callData); | ||
| assembly { | ||
| // Revert if the call fails and failure is not allowed | ||
| // `allowFailure := calldataload(add(calli, 0x20))` and `success := mload(result)` | ||
| if iszero(or(calldataload(add(calli, 0x20)), mload(result))) { | ||
| // set "Error(string)" signature: bytes32(bytes4(keccak256("Error(string)"))) | ||
| mstore(0x00, 0x08c379a000000000000000000000000000000000000000000000000000000000) | ||
| // set data offset | ||
| mstore(0x04, 0x0000000000000000000000000000000000000000000000000000000000000020) | ||
| // set length of revert string | ||
| mstore(0x24, 0x0000000000000000000000000000000000000000000000000000000000000017) | ||
| // set revert string: bytes32(abi.encodePacked("Multicall3: call failed")) | ||
| mstore(0x44, 0x4d756c746963616c6c333a2063616c6c206661696c6564000000000000000000) | ||
| revert(0x00, 0x84) | ||
| } | ||
| } | ||
| unchecked { | ||
| ++i; | ||
| } | ||
| } | ||
| // Finally, make sure the msg.value = SUM(call[0...i].value) | ||
| require(msg.value == valAccumulator, "Multicall3: value mismatch"); | ||
| } | ||
|
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||
| /// @notice Returns the block hash for the given block number | ||
| /// @param blockNumber The block number | ||
| function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) { | ||
| blockHash = blockhash(blockNumber); | ||
| } | ||
|
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| /// @notice Returns the block number | ||
| function getBlockNumber() public view returns (uint256 blockNumber) { | ||
| blockNumber = block.number; | ||
| } | ||
|
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| /// @notice Returns the block coinbase | ||
| function getCurrentBlockCoinbase() public view returns (address coinbase) { | ||
| coinbase = block.coinbase; | ||
| } | ||
|
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| /// @notice Returns the block difficulty | ||
| function getCurrentBlockDifficulty() public view returns (uint256 difficulty) { | ||
| difficulty = block.prevrandao; | ||
| } | ||
|
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| /// @notice Returns the block gas limit | ||
| function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) { | ||
| gaslimit = block.gaslimit; | ||
| } | ||
|
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| /// @notice Returns the block timestamp | ||
| function getCurrentBlockTimestamp() public view returns (uint256 timestamp) { | ||
| timestamp = block.timestamp; | ||
| } | ||
|
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| /// @notice Returns the (ETH) balance of a given address | ||
| function getEthBalance(address addr) public view returns (uint256 balance) { | ||
| balance = addr.balance; | ||
| } | ||
|
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| /// @notice Returns the block hash of the last block | ||
| function getLastBlockHash() public view returns (bytes32 blockHash) { | ||
| unchecked { | ||
| blockHash = blockhash(block.number - 1); | ||
| } | ||
| } | ||
|
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| /// @notice Gets the base fee of the given block | ||
| /// @notice Can revert if the BASEFEE opcode is not implemented by the given chain | ||
| function getBasefee() public view returns (uint256 basefee) { | ||
| basefee = block.basefee; | ||
| } | ||
|
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| /// @notice Returns the chain id | ||
| function getChainId() public view returns (uint256 chainid) { | ||
| chainid = block.chainid; | ||
| } | ||
| } |