{ "contractName": "WitnetPriceFeedsLib", "abi": [ { "inputs": [ { "internalType": "bytes", "name": "initcode", "type": "bytes" }, { "internalType": "bytes", "name": "constructorParams", "type": "bytes" } ], "name": "determinePriceSolverAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "prefix", "type": "bytes32" }, { "internalType": "string", "name": "caption", "type": "string" } ], "name": "validateCaption", "outputs": [ { "internalType": "uint8", "name": "", "type": "uint8" } ], "stateMutability": "pure", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.8.25+commit.b61c2a91\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"initcode\",\"type\":\"bytes\"},{\"internalType\":\"bytes\",\"name\":\"constructorParams\",\"type\":\"bytes\"}],\"name\":\"determinePriceSolverAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"prefix\",\"type\":\"bytes32\"},{\"internalType\":\"string\",\"name\":\"caption\",\"type\":\"string\"}],\"name\":\"validateCaption\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"pure\",\"type\":\"function\"}],\"devdoc\":{\"author\":\"The Witnet Foundation.\",\"details\":\"Features:- deployment of counter-factual IWitnetPriceSolver instances.- validation of feed caption strings.\",\"kind\":\"dev\",\"methods\":{},\"title\":\"Ancillary deployable library for WitnetPriceFeeds.\",\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/libs/WitnetPriceFeedsLib.sol\":\"WitnetPriceFeedsLib\"},\"evmVersion\":\"paris\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"project:/contracts/interfaces/IWitnetPriceSolver.sol\":{\"keccak256\":\"0x858441dafaa0617a8d679b3cda493b418284d865899c3f235cb3f41535db7a16\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://43d25f8985aede9c32cee369872a9f21db41c7b9abc87d5d4d02ff7e15879b98\",\"dweb:/ipfs/QmdoZnVpx9FZeg8KHgMjGRLmVKtdn7zzFTadFUjT8xd3dR\"]},\"project:/contracts/interfaces/IWitnetPriceSolverDeployer.sol\":{\"keccak256\":\"0x52d4e504fb6e699893a592ba5723794688c70ad36af7eb5ffdc08e692b2ddb21\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://4ab7f54312c0c8443e9220d41a72513ef84377d315cad3c49397da94361d5c42\",\"dweb:/ipfs/QmRTJtxnoRhh9AXMixRvSa8BT4vprZttLgqGzmLEjZG6oB\"]},\"project:/contracts/libs/Slices.sol\":{\"keccak256\":\"0x9d046fa558be922c9625a1fdc470f6e68b3c9b5745b6185cb4a4fc59181fa006\",\"license\":\"APACHE-2.0\",\"urls\":[\"bzz-raw://ab19ba09faf83aaa92947f0a0907f6522be89279a9a1b0e53d5393a23085947d\",\"dweb:/ipfs/QmeE9MwhpSFNTwyqDFpMFjftrJKR1edBhLjV3bdKQQHUVm\"]},\"project:/contracts/libs/Witnet.sol\":{\"keccak256\":\"0x65a87375dd79d63a83fb454b7199b6c999bd59c50b3b59d521c5c4d45a7d3cc3\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://ca865b681d810c2fc5c3672ea6343c3bdf6fd71764ab824d25994744dc85866b\",\"dweb:/ipfs/QmPGcP3xGTNZfsQ9GSKdujNLRVs8dWDdubyUko1rbQqJNv\"]},\"project:/contracts/libs/WitnetBuffer.sol\":{\"keccak256\":\"0xa14570492eb5a313ddbacae0185c850ec99c67211eb33989a5e21d31bf06a150\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://e83c11edb49cab6a767c0b685825bc22ece0d3d2897e0d54fe1923df5cc76ba5\",\"dweb:/ipfs/QmdLDgCc3tnKbgRrXwfNzsg6uUDirNmjvBB8V3iMmnD69a\"]},\"project:/contracts/libs/WitnetCBOR.sol\":{\"keccak256\":\"0xb346547ff731163beea2c657c52675cdf7936691d566a76a045577cf9c34ade0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://6d4b5b6424a033584b41f1204d635db98fda9ca9bd2a614c9d82539a3e4e6529\",\"dweb:/ipfs/QmW6Qy3wWpzHSECYaCPaf9LWGfPqWDKVoP2kPSNNQu7LMQ\"]},\"project:/contracts/libs/WitnetPriceFeedsLib.sol\":{\"keccak256\":\"0x28b4a473e8432d83ecdfcb9b712277e51f1090e7f827cec14bf0ad56efebf3df\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://c09a3799d20b35a94aa3246706426ee54bd18031aa68c13f93554491f5d088d0\",\"dweb:/ipfs/QmUUt459tcusH5TnriFpNDTeKCfEtEX6E6Y8RANFzfLDVb\"]},\"project:/contracts/libs/WitnetV2.sol\":{\"keccak256\":\"0xb276a6da373bfbe9cd942dd7e59979cda898215d1e36ab3df95a6d6cc6ff770f\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://bc4890876b9bc64f501ccdd48408bb63724865cb2ce8d2057f6b318540adce7c\",\"dweb:/ipfs/QmPMHPdbCsKBavhiLcaDgQ9EjNSvwwzv8TKffotcCv1ctP\"]}},\"version\":1}", 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"6161:5:84", "type": "" } ], "src": "6112:806:84" }, { "body": { "nativeSrc": "6993:61:84", "nodeType": "YulBlock", "src": "6993:61:84", "statements": [ { "nativeSrc": "7003:45:84", "nodeType": "YulAssignment", "src": "7003:45:84", "value": { "arguments": [ { "name": "base", "nativeSrc": "7033:4:84", "nodeType": "YulIdentifier", "src": "7033:4:84" }, { "name": "exponent", "nativeSrc": "7039:8:84", "nodeType": "YulIdentifier", "src": "7039:8:84" } ], "functionName": { "name": "checked_exp_unsigned", "nativeSrc": "7012:20:84", "nodeType": "YulIdentifier", "src": "7012:20:84" }, "nativeSrc": "7012:36:84", "nodeType": "YulFunctionCall", "src": "7012:36:84" }, "variableNames": [ { "name": "power", "nativeSrc": "7003:5:84", "nodeType": "YulIdentifier", "src": "7003:5:84" } ] } ] }, "name": "checked_exp_t_uint256_t_uint256", "nativeSrc": "6923:131:84", "nodeType": "YulFunctionDefinition", "parameters": [ { "name": "base", "nativeSrc": "6964:4:84", "nodeType": "YulTypedName", "src": "6964:4:84", "type": "" }, { "name": "exponent", "nativeSrc": "6970:8:84", "nodeType": "YulTypedName", "src": "6970:8:84", "type": "" } ], "returnVariables": [ { "name": "power", "nativeSrc": "6983:5:84", "nodeType": "YulTypedName", "src": "6983:5:84", "type": "" } ], "src": "6923:131:84" } ] }, "contents": "{\n { }\n function abi_decode_bytes_calldata(offset, end) -> arrayPos, length\n {\n if iszero(slt(add(offset, 0x1f), end)) { revert(0, 0) }\n length := calldataload(offset)\n if gt(length, 0xffffffffffffffff) { revert(0, 0) }\n arrayPos := add(offset, 0x20)\n if gt(add(add(offset, length), 0x20), end) { revert(0, 0) }\n }\n function abi_decode_tuple_t_bytes_calldata_ptrt_bytes_calldata_ptr(headStart, dataEnd) -> value0, value1, value2, value3\n {\n if slt(sub(dataEnd, headStart), 64) { revert(0, 0) }\n let offset := calldataload(headStart)\n let _1 := 0xffffffffffffffff\n if gt(offset, _1) { revert(0, 0) }\n let value0_1, value1_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n value0 := value0_1\n value1 := value1_1\n let offset_1 := calldataload(add(headStart, 32))\n if gt(offset_1, _1) { revert(0, 0) }\n let value2_1, value3_1 := abi_decode_bytes_calldata(add(headStart, offset_1), dataEnd)\n value2 := value2_1\n value3 := value3_1\n }\n function abi_encode_tuple_t_address__to_t_address__fromStack_library_reversed(headStart, value0) -> tail\n {\n tail := add(headStart, 32)\n mstore(headStart, and(value0, sub(shl(160, 1), 1)))\n }\n function abi_decode_tuple_t_bytes32t_string_calldata_ptr(headStart, dataEnd) -> value0, value1, value2\n {\n if slt(sub(dataEnd, headStart), 64) { revert(0, 0) }\n value0 := calldataload(headStart)\n let offset := calldataload(add(headStart, 32))\n if gt(offset, 0xffffffffffffffff) { revert(0, 0) }\n let value1_1, value2_1 := abi_decode_bytes_calldata(add(headStart, offset), dataEnd)\n value1 := value1_1\n value2 := value2_1\n }\n function abi_encode_tuple_t_uint8__to_t_uint8__fromStack_library_reversed(headStart, value0) -> tail\n {\n tail := add(headStart, 32)\n mstore(headStart, and(value0, 0xff))\n }\n function abi_decode_tuple_t_bytes4_fromMemory(headStart, dataEnd) -> value0\n {\n if slt(sub(dataEnd, headStart), 32) { revert(0, 0) }\n let value := mload(headStart)\n if iszero(eq(value, and(value, shl(224, 0xffffffff)))) { revert(0, 0) }\n value0 := value\n }\n function abi_encode_tuple_t_stringliteral_b83fd1362122226ebd334873b785b11c1b5cc459c0082afa04d9deda2e13ed4a__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n {\n mstore(headStart, 32)\n mstore(add(headStart, 32), 54)\n mstore(add(headStart, 64), \"WitnetPriceFeedsLib: uncompliant\")\n mstore(add(headStart, 96), \" solver implementation\")\n tail := add(headStart, 128)\n }\n function convert_bytes_to_fixedbytes_from_t_bytes_calldata_ptr_to_t_bytes6(array, len) -> value\n {\n let _1 := calldataload(array)\n let _2 := shl(208, 0xffffffffffff)\n value := and(_1, _2)\n if lt(len, 6)\n {\n value := and(and(_1, shl(shl(3, sub(6, len)), _2)), _2)\n }\n }\n function abi_encode_tuple_t_stringliteral_22d156239ab413033e2201bd93f1958cb1588ec5e33309c023c8b8027297d8e9__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n {\n mstore(headStart, 32)\n mstore(add(headStart, 32), 39)\n mstore(add(headStart, 64), \"WitnetPriceFeedsLib: bad caption\")\n mstore(add(headStart, 96), \" prefix\")\n tail := add(headStart, 128)\n }\n function panic_error_0x11()\n {\n mstore(0, shl(224, 0x4e487b71))\n mstore(4, 0x11)\n revert(0, 0x24)\n }\n function checked_add_t_uint256(x, y) -> sum\n {\n sum := add(x, y)\n if gt(x, sum) { panic_error_0x11() }\n }\n function panic_error_0x41()\n {\n mstore(0, shl(224, 0x4e487b71))\n mstore(4, 0x41)\n revert(0, 0x24)\n }\n function panic_error_0x32()\n {\n mstore(0, shl(224, 0x4e487b71))\n mstore(4, 0x32)\n revert(0, 0x24)\n }\n function checked_sub_t_uint256(x, y) -> diff\n {\n diff := sub(x, y)\n if gt(diff, x) { panic_error_0x11() }\n }\n function abi_encode_tuple_t_stringliteral_a9594db15eb27b6c72c111e17e3bb392ab962a926b4d3310ac0309d91ddf668f__to_t_string_memory_ptr__fromStack_reversed(headStart) -> tail\n {\n mstore(headStart, 32)\n mstore(add(headStart, 32), 33)\n mstore(add(headStart, 64), \"WitnetPriceFeedsLib: bad decimal\")\n mstore(add(headStart, 96), \"s\")\n tail := add(headStart, 128)\n }\n function abi_encode_tuple_packed_t_bytes1_t_address_t_bytes32_t_bytes32__to_t_bytes1_t_address_t_bytes32_t_bytes32__nonPadded_inplace_fromStack_reversed(pos, value3, value2, value1, value0) -> end\n {\n mstore(pos, and(value0, shl(248, 255)))\n mstore(add(pos, 1), and(shl(96, value1), not(0xffffffffffffffffffffffff)))\n mstore(add(pos, 21), value2)\n mstore(add(pos, 53), value3)\n end := add(pos, 85)\n }\n function abi_encode_tuple_packed_t_bytes_calldata_ptr_t_bytes_calldata_ptr__to_t_bytes_memory_ptr_t_bytes_memory_ptr__nonPadded_inplace_fromStack_reversed(pos, value3, value2, value1, value0) -> end\n {\n calldatacopy(pos, value0, value1)\n let _1 := add(pos, value1)\n mstore(_1, 0)\n calldatacopy(_1, value2, value3)\n let _2 := add(_1, value3)\n mstore(_2, 0)\n end := _2\n }\n function increment_t_uint256(value) -> ret\n {\n if eq(value, not(0)) { panic_error_0x11() }\n ret := add(value, 1)\n }\n function checked_mul_t_uint256(x, y) -> product\n {\n product := mul(x, y)\n if iszero(or(iszero(x), eq(y, div(product, x)))) { panic_error_0x11() }\n }\n function checked_exp_helper(_base, exponent) -> power, base\n {\n let power_1 := 1\n power := 1\n base := _base\n for { } gt(exponent, power_1) { }\n {\n if gt(base, div(not(0), base)) { panic_error_0x11() }\n if and(exponent, power_1) { power := mul(power, base) }\n base := mul(base, base)\n exponent := shr(power_1, exponent)\n }\n }\n function checked_exp_unsigned(base, exponent) -> power\n {\n if iszero(exponent)\n {\n power := 1\n leave\n }\n if iszero(base)\n {\n power := 0\n leave\n }\n switch base\n case 1 {\n power := 1\n leave\n }\n case 2 {\n if gt(exponent, 255) { panic_error_0x11() }\n power := shl(exponent, 1)\n leave\n }\n if or(and(lt(base, 11), lt(exponent, 78)), and(lt(base, 307), lt(exponent, 32)))\n {\n power := exp(base, exponent)\n leave\n }\n let power_1, base_1 := checked_exp_helper(base, exponent)\n if gt(power_1, div(not(0), base_1)) { panic_error_0x11() }\n power := mul(power_1, base_1)\n }\n function checked_exp_t_uint256_t_uint256(base, exponent) -> power\n {\n power := checked_exp_unsigned(base, exponent)\n }\n}", "id": 84, "language": "Yul", "name": "#utility.yul" } ], "sourceMap": "482:2691:69:-:0;;;;;;;;;;;;;;;-1:-1:-1;;;482:2691:69;;;;;;;;;;;;;;;;;", "deployedSourceMap": 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"source": "// SPDX-License-Identifier: MIT\r\n\r\npragma solidity >=0.7.0 <0.9.0;\r\npragma experimental ABIEncoderV2;\r\n\r\nimport \"../interfaces/IWitnetPriceSolver.sol\";\r\nimport \"../interfaces/IWitnetPriceSolverDeployer.sol\";\r\n\r\nimport \"../libs/Slices.sol\";\r\n\r\n/// @title Ancillary deployable library for WitnetPriceFeeds.\r\n/// @dev Features:\r\n/// @dev - deployment of counter-factual IWitnetPriceSolver instances.\r\n/// @dev - validation of feed caption strings.\r\n/// @author The Witnet Foundation.\r\nlibrary WitnetPriceFeedsLib {\r\n\r\n using Slices for string;\r\n using Slices for Slices.Slice;\r\n\r\n function deployPriceSolver(\r\n bytes calldata initcode,\r\n bytes calldata constructorParams\r\n )\r\n external\r\n returns (address _solver)\r\n {\r\n _solver = determinePriceSolverAddress(initcode, constructorParams);\r\n if (_solver.code.length == 0) {\r\n bytes memory _bytecode = _completeInitCode(initcode, constructorParams);\r\n address _createdContract;\r\n assembly {\r\n _createdContract := create2(\r\n 0, \r\n add(_bytecode, 0x20),\r\n mload(_bytecode), \r\n 0\r\n )\r\n }\r\n // assert(_solver == _createdContract); // fails on TEN chains\r\n _solver = _createdContract;\r\n require(\r\n IWitnetPriceSolver(_solver).specs() == type(IWitnetPriceSolver).interfaceId,\r\n \"WitnetPriceFeedsLib: uncompliant solver implementation\"\r\n );\r\n }\r\n }\r\n\r\n function determinePriceSolverAddress(\r\n bytes calldata initcode,\r\n bytes calldata constructorParams\r\n )\r\n public view\r\n returns (address)\r\n {\r\n return address(\r\n uint160(uint(keccak256(\r\n abi.encodePacked(\r\n bytes1(0xff),\r\n address(this),\r\n bytes32(0),\r\n keccak256(_completeInitCode(initcode, constructorParams))\r\n )\r\n )))\r\n );\r\n }\r\n\r\n function validateCaption(bytes32 prefix, string calldata caption)\r\n external pure\r\n returns (uint8)\r\n {\r\n require(\r\n bytes6(bytes(caption)) == bytes6(prefix),\r\n \"WitnetPriceFeedsLib: bad caption prefix\"\r\n );\r\n Slices.Slice memory _caption = caption.toSlice();\r\n Slices.Slice memory _delim = string(\"-\").toSlice();\r\n string[] memory _parts = new string[](_caption.count(_delim) + 1);\r\n for (uint _ix = 0; _ix < _parts.length; _ix ++) {\r\n _parts[_ix] = _caption.split(_delim).toString();\r\n }\r\n (uint _decimals, bool _success) = Witnet.tryUint(_parts[_parts.length - 1]);\r\n require(_success, \"WitnetPriceFeedsLib: bad decimals\");\r\n return uint8(_decimals);\r\n }\r\n\r\n function _completeInitCode(bytes calldata initcode, bytes calldata constructorParams)\r\n private pure\r\n returns (bytes memory)\r\n {\r\n return abi.encodePacked(\r\n initcode,\r\n constructorParams\r\n );\r\n } \r\n\r\n}\r\n", "sourcePath": "C:\\Users\\guill\\github\\witnet\\witnet-solidity-bridge\\contracts\\libs\\WitnetPriceFeedsLib.sol", "ast": { "absolutePath": "project:/contracts/libs/WitnetPriceFeedsLib.sol", "exportedSymbols": { "IWitnetPriceSolver": [ 13485 ], "IWitnetPriceSolverDeployer": [ 13514 ], "Slices": [ 15980 ], "Witnet": [ 17557 ], "WitnetBuffer": [ 19191 ], "WitnetCBOR": [ 20734 ], "WitnetPriceFeedsLib": [ 23444 ], "WitnetV2": [ 23640 ] }, "id": 23445, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 23208, "literals": [ "solidity", ">=", "0.7", ".0", "<", "0.9", ".0" ], "nodeType": "PragmaDirective", "src": "35:31:69" }, { "id": 23209, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "68:33:69" }, { "absolutePath": "project:/contracts/interfaces/IWitnetPriceSolver.sol", "file": "../interfaces/IWitnetPriceSolver.sol", "id": 23210, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 23445, "sourceUnit": 13486, "src": "105:46:69", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/interfaces/IWitnetPriceSolverDeployer.sol", "file": "../interfaces/IWitnetPriceSolverDeployer.sol", "id": 23211, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 23445, "sourceUnit": 13515, "src": "153:54:69", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/libs/Slices.sol", "file": "../libs/Slices.sol", "id": 23212, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 23445, "sourceUnit": 15981, "src": "211:28:69", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "canonicalName": "WitnetPriceFeedsLib", "contractDependencies": [], "contractKind": "library", "documentation": { "id": 23213, "nodeType": "StructuredDocumentation", "src": "243:239:69", "text": "@title Ancillary deployable library for WitnetPriceFeeds.\n @dev Features:\n @dev - deployment of counter-factual IWitnetPriceSolver instances.\n @dev - validation of feed caption strings.\n @author The Witnet Foundation." }, "fullyImplemented": true, "id": 23444, "linearizedBaseContracts": [ 23444 ], "name": "WitnetPriceFeedsLib", "nameLocation": "490:19:69", "nodeType": "ContractDefinition", "nodes": [ { "global": false, "id": 23216, "libraryName": { "id": 23214, "name": "Slices", "nameLocations": [ "525:6:69" ], "nodeType": "IdentifierPath", "referencedDeclaration": 15980, "src": "525:6:69" }, "nodeType": "UsingForDirective", "src": "519:24:69", "typeName": { "id": 23215, "name": "string", "nodeType": "ElementaryTypeName", "src": "536:6:69", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } } }, { "global": false, "id": 23220, "libraryName": { "id": 23217, "name": "Slices", "nameLocations": [ "555:6:69" ], "nodeType": "IdentifierPath", "referencedDeclaration": 15980, "src": "555:6:69" }, "nodeType": "UsingForDirective", "src": "549:30:69", "typeName": { "id": 23219, "nodeType": "UserDefinedTypeName", "pathNode": { "id": 23218, "name": "Slices.Slice", "nameLocations": [ "566:6:69", "573:5:69" ], "nodeType": "IdentifierPath", "referencedDeclaration": 14156, "src": "566:12:69" }, "referencedDeclaration": 14156, "src": "566:12:69", "typeDescriptions": { "typeIdentifier": "t_struct$_Slice_$14156_storage_ptr", "typeString": "struct Slices.Slice" } } }, { "body": { "id": 23272, "nodeType": "Block", "src": "768:820:69", "statements": [ { "expression": { "id": 23234, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 23229, "name": "_solver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23227, "src": "779:7:69", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "id": 23231, "name": "initcode", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23222, "src": "817:8:69", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, { "id": 23232, "name": "constructorParams", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23224, "src": "827:17:69", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" }, { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } ], "id": 23230, "name": "determinePriceSolverAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23316, "src": "789:27:69", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes_calldata_ptr_$_t_bytes_calldata_ptr_$returns$_t_address_$", "typeString": "function (bytes calldata,bytes calldata) view returns (address)" } }, "id": 23233, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "nameLocations": [], "names": [], "nodeType": "FunctionCall", "src": "789:56:69", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "779:66:69", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 23235, "nodeType": "ExpressionStatement", "src": "779:66:69" }, { "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 23240, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "expression": { "id": 23236, "name": "_solver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23227, "src": "860:7:69", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 23237, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberLocation": "868:4:69", "memberName": "code", "nodeType": "MemberAccess", "src": "860:12:69", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 23238, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberLocation": "873:6:69", "memberName": "length", "nodeType": "MemberAccess", "src": "860:19:69", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "hexValue": "30", "id": 23239, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "883:1:69", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "860:24:69", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 23271, "nodeType": "IfStatement", "src": "856:725:69", "trueBody": { "id": 23270, "nodeType": "Block", "src": "886:695:69", "statements": [ { "assignments": [ 23242 ], "declarations": [ { "constant": false, "id": 23242, "mutability": "mutable", "name": "_bytecode", "nameLocation": "914:9:69", "nodeType": "VariableDeclaration", "scope": 23270, "src": "901:22:69", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 23241, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "901:5:69", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "id": 23247, "initialValue": { "arguments": [ { "id": 23244, "name": "initcode", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23222, "src": "944:8:69", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, { "id": 23245, "name": "constructorParams", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23224, "src": "954:17:69", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" }, { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } ], "id": 23243, "name": "_completeInitCode", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23443, "src": "926:17:69", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_calldata_ptr_$_t_bytes_calldata_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes calldata,bytes calldata) pure returns (bytes memory)" } }, "id": 23246, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "nameLocations": [], "names": [], "nodeType": "FunctionCall", "src": "926:46:69", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "VariableDeclarationStatement", "src": "901:71:69" }, { "assignments": [ 23249 ], "declarations": [ { "constant": false, "id": 23249, "mutability": "mutable", "name": "_createdContract", "nameLocation": "995:16:69", "nodeType": "VariableDeclaration", "scope": 23270, "src": "987:24:69", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 23248, "name": "address", "nodeType": "ElementaryTypeName", "src": "987:7:69", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "id": 23250, "nodeType": "VariableDeclarationStatement", "src": "987:24:69" }, { "AST": { "nativeSrc": "1035:212:69", "nodeType": "YulBlock", "src": "1035:212:69", "statements": [ { "nativeSrc": "1054:178:69", "nodeType": "YulAssignment", "src": "1054:178:69", "value": { "arguments": [ { "kind": "number", "nativeSrc": "1104:1:69", "nodeType": "YulLiteral", "src": "1104:1:69", "type": "", "value": "0" }, { "arguments": [ { "name": "_bytecode", "nativeSrc": "1133:9:69", "nodeType": "YulIdentifier", "src": "1133:9:69" }, { "kind": "number", "nativeSrc": "1144:4:69", "nodeType": "YulLiteral", "src": "1144:4:69", "type": "", "value": "0x20" } ], "functionName": { "name": "add", "nativeSrc": "1129:3:69", "nodeType": "YulIdentifier", "src": "1129:3:69" }, "nativeSrc": "1129:20:69", "nodeType": "YulFunctionCall", "src": "1129:20:69" }, { "arguments": [ { "name": "_bytecode", "nativeSrc": "1178:9:69", "nodeType": "YulIdentifier", "src": "1178:9:69" } ], "functionName": { "name": "mload", "nativeSrc": "1172:5:69", "nodeType": "YulIdentifier", "src": "1172:5:69" }, "nativeSrc": "1172:16:69", "nodeType": "YulFunctionCall", "src": "1172:16:69" }, { "kind": "number", "nativeSrc": "1212:1:69", "nodeType": "YulLiteral", "src": "1212:1:69", "type": "", "value": "0" } ], "functionName": { "name": "create2", "nativeSrc": "1074:7:69", "nodeType": "YulIdentifier", "src": "1074:7:69" }, "nativeSrc": "1074:158:69", "nodeType": "YulFunctionCall", "src": "1074:158:69" }, "variableNames": [ { "name": "_createdContract", "nativeSrc": "1054:16:69", "nodeType": "YulIdentifier", "src": "1054:16:69" } ] } ] }, "evmVersion": "paris", "externalReferences": [ { "declaration": 23242, "isOffset": false, "isSlot": false, "src": "1133:9:69", "valueSize": 1 }, { "declaration": 23242, "isOffset": false, "isSlot": false, "src": "1178:9:69", "valueSize": 1 }, { "declaration": 23249, "isOffset": false, "isSlot": false, "src": "1054:16:69", "valueSize": 1 } ], "id": 23251, "nodeType": "InlineAssembly", "src": "1026:221:69" }, { "expression": { "id": 23254, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 23252, "name": "_solver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23227, "src": "1337:7:69", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 23253, "name": 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"5769746e6574507269636546656564734c69623a20756e636f6d706c69616e7420736f6c76657220696d706c656d656e746174696f6e", "id": 23267, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1498:56:69", "typeDescriptions": { "typeIdentifier": "t_stringliteral_b83fd1362122226ebd334873b785b11c1b5cc459c0082afa04d9deda2e13ed4a", "typeString": "literal_string \"WitnetPriceFeedsLib: uncompliant solver implementation\"" }, "value": "WitnetPriceFeedsLib: uncompliant solver implementation" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_b83fd1362122226ebd334873b785b11c1b5cc459c0082afa04d9deda2e13ed4a", "typeString": "literal_string \"WitnetPriceFeedsLib: uncompliant solver implementation\"" } ], "id": 23256, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4294967278, 4294967278 ], "referencedDeclaration": 4294967278, "src": "1378:7:69", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 23268, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "nameLocations": [], "names": [], "nodeType": "FunctionCall", "src": "1378:191:69", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 23269, "nodeType": "ExpressionStatement", "src": "1378:191:69" } ] } } ] }, "functionSelector": "a55b471c", "id": 23273, "implemented": true, "kind": "function", "modifiers": [], "name": "deployPriceSolver", "nameLocation": "596:17:69", "nodeType": "FunctionDefinition", "parameters": { "id": 23225, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 23222, "mutability": "mutable", "name": "initcode", "nameLocation": "643:8:69", "nodeType": "VariableDeclaration", "scope": 23273, "src": 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