@dolomite-exchange/dolomite-margin

{ "contractName": "MultiCall", "abi": [ { "constant": false, "inputs": [ { "components": [ { "internalType": "address", "name": "target", "type": "address" }, { "internalType": "bytes", "name": "callData", "type": "bytes" } ], "internalType": "struct MultiCall.Call[]", "name": "calls", "type": "tuple[]" } ], "name": "aggregate", "outputs": [ { "internalType": "uint256", "name": "blockNumber", "type": "uint256" }, { "internalType": "bytes[]", "name": "returnData", "type": "bytes[]" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "internalType": "address", "name": "addr", "type": "address" } ], "name": "getEthBalance", "outputs": [ { "internalType": "uint256", "name": "balance", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "internalType": "uint256", "name": "blockNumber", "type": "uint256" } ], "name": "getBlockHash", "outputs": [ { "internalType": "bytes32", "name": "blockHash", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getLastBlockHash", "outputs": [ { "internalType": "bytes32", "name": "blockHash", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getCurrentBlockTimestamp", "outputs": [ { "internalType": "uint256", "name": "timestamp", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getCurrentBlockDifficulty", "outputs": [ { "internalType": "uint256", "name": "difficulty", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getCurrentBlockGasLimit", "outputs": [ { "internalType": "uint256", "name": "gaslimit", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getCurrentBlockCoinbase", "outputs": [ { "internalType": "address", "name": "coinbase", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":false,\"inputs\":[{\"components\":[{\"internalType\":\"address\",\"name\":\"target\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"callData\",\"type\":\"bytes\"}],\"internalType\":\"struct MultiCall.Call[]\",\"name\":\"calls\",\"type\":\"tuple[]\"}],\"name\":\"aggregate\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"blockNumber\",\"type\":\"uint256\"},{\"internalType\":\"bytes[]\",\"name\":\"returnData\",\"type\":\"bytes[]\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"blockNumber\",\"type\":\"uint256\"}],\"name\":\"getBlockHash\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"blockHash\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getCurrentBlockCoinbase\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"coinbase\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getCurrentBlockDifficulty\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"difficulty\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getCurrentBlockGasLimit\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"gaslimit\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getCurrentBlockTimestamp\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"timestamp\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"addr\",\"type\":\"address\"}],\"name\":\"getEthBalance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"balance\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getLastBlockHash\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"blockHash\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"author\":\"Michael Elliot <mike@makerdao.com>Joshua Levine <joshua@makerdao.com>Nick Johnson <arachnid@notdot.net>Corey Caplan <corey@dolomite.io>\",\"methods\":{},\"title\":\"MultiCall - Aggregate results from multiple read-only function calls\"},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/home/cdc218/projects/dolomite-protocol-v2/contracts/external/utils/MultiCall.sol\":\"MultiCall\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":10000},\"remappings\":[]},\"sources\":{\"/home/cdc218/projects/dolomite-protocol-v2/contracts/external/utils/MultiCall.sol\":{\"keccak256\":\"0xd952cd7f94600c493753663d213da3b9af033c2f64c675f0c5cdc7a6cab37ed0\",\"urls\":[\"bzz-raw://68048fc4ec3fd6343f89d5e60ffa771f0fc5ffc86dd24c7b462b887e3cf11ce5\",\"dweb:/ipfs/QmakL2JEVqzFLGnqYATNy6yigem7FcPPKj4orEx4847wM3\"]}},\"version\":1}", "bytecode": 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"source": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.5.0;\npragma experimental ABIEncoderV2;\n\n\n\n/**\n * @title MultiCall - Aggregate results from multiple read-only function calls\n * @author Michael Elliot <mike@makerdao.com>\n * @author Joshua Levine <joshua@makerdao.com>\n * @author Nick Johnson <arachnid@notdot.net>\n * @author Corey Caplan <corey@dolomite.io>\n */\ncontract MultiCall {\n\n struct Call {\n address target;\n bytes callData;\n }\n\n function aggregate(Call[] memory calls) public returns (uint256 blockNumber, bytes[] memory returnData) {\n blockNumber = block.number;\n returnData = new bytes[](calls.length);\n for (uint256 i; i < calls.length; ++i) {\n // solium-disable-next-line security/no-low-level-calls\n (bool success, bytes memory result) = calls[i].target.call(calls[i].callData);\n if (!success) {\n if (result.length < 68) {\n string memory targetString = _addressToString(calls[i].target);\n revert(string(abi.encodePacked(\"Multicall::aggregate: revert at <\", targetString, \">\")));\n } else {\n // solium-disable-next-line security/no-inline-assembly\n assembly {\n result := add(result, 0x04)\n }\n string memory targetString = _addressToString(calls[i].target);\n revert(\n string(\n abi.encodePacked(\n \"Multicall::aggregate: revert at <\",\n targetString,\n \"> with reason: \",\n abi.decode(result, (string))\n )\n )\n );\n }\n }\n returnData[i] = result;\n }\n }\n\n // Helper functions\n function getEthBalance(address addr) public view returns (uint256 balance) {\n balance = addr.balance;\n }\n\n function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) {\n blockHash = blockhash(blockNumber);\n }\n\n function getLastBlockHash() public view returns (bytes32 blockHash) {\n blockHash = blockhash(block.number - 1);\n }\n\n function getCurrentBlockTimestamp() public view returns (uint256 timestamp) {\n timestamp = block.timestamp;\n }\n\n function getCurrentBlockDifficulty() public view returns (uint256 difficulty) {\n difficulty = block.difficulty;\n }\n\n function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) {\n gaslimit = block.gaslimit;\n }\n\n function getCurrentBlockCoinbase() public view returns (address coinbase) {\n coinbase = block.coinbase;\n }\n\n function _addressToString(address _address) internal pure returns(string memory) {\n bytes32 _bytes = bytes32(uint256(_address));\n bytes memory HEX = \"0123456789abcdef\";\n bytes memory _string = new bytes(42);\n _string[0] = \"0\";\n _string[1] = \"x\";\n for (uint256 i; i < 20; ++i) {\n _string[2 + i * 2] = HEX[uint8(_bytes[i + 12] >> 4)];\n _string[3 + i * 2] = HEX[uint8(_bytes[i + 12] & 0x0f)];\n }\n return string(_string);\n }\n}\n", "sourcePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/external/utils/MultiCall.sol", "ast": { "absolutePath": "/home/cdc218/projects/dolomite-protocol-v2/contracts/external/utils/MultiCall.sol", "exportedSymbols": { "MultiCall": [ 16628 ] }, "id": 16629, "nodeType": "SourceUnit", "nodes": [ { "id": 16324, "literals": [ "solidity", ">=", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "33:24:61" }, { "id": 16325, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "58:33:61" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title MultiCall - Aggregate results from multiple read-only function calls\n@author Michael Elliot <mike@makerdao.com>\n@author Joshua Levine <joshua@makerdao.com>\n@author Nick Johnson <arachnid@notdot.net>\n@author Corey Caplan <corey@dolomite.io>", "fullyImplemented": true, "id": 16628, "linearizedBaseContracts": [ 16628 ], "name": "MultiCall", "nodeType": "ContractDefinition", "nodes": [ { "canonicalName": "MultiCall.Call", "id": 16330, "members": [ { "constant": false, "id": 16327, "name": "target", "nodeType": "VariableDeclaration", "scope": 16330, "src": "413:14:61", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 16326, "name": "address", "nodeType": "ElementaryTypeName", "src": "413:7:61", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 16329, "name": "callData", "nodeType": "VariableDeclaration", "scope": 16330, "src": "437:14:61", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" }, "typeName": { "id": 16328, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "437:5:61", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "name": "Call", "nodeType": "StructDefinition", "scope": 16628, "src": "391:67:61", "visibility": "public" }, { "body": { "id": 16446, "nodeType": "Block", "src": "568:1343:61", "statements": [ { "expression": { "argumentTypes": null, "id": 16344, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 16341, "name": "blockNumber", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16336, "src": "578:11:61", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 16342, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 38097, "src": "592:5:61", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 16343, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "number", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "592:12:61", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "578:26:61", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 16345, "nodeType": "ExpressionStatement", "src": "578:26:61" }, { "expression": { "argumentTypes": null, "id": 16353, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 16346, "name": "returnData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 16339, "src": "614:10:61", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes_memory_$dyn_memory_ptr", "typeString": "bytes memory[] memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 16350, "name": "calls", "nodeType": "Identifier", "overloadedDeclarations": 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