{ "contractName": "ValidateSPV", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.5.10+commit.5a6ea5b1\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"@summa-tx/bitcoin-spv-sol/contracts/ValidateSPV.sol\":\"ValidateSPV\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@summa-tx/bitcoin-spv-sol/contracts/BTCUtils.sol\":{\"keccak256\":\"0xc63829e9d674bb7bb98b264aff17add28db3c19d3ee0ef49531663491af8b087\",\"urls\":[\"bzzr://9a76af9995e01cb82228d6827801929b4697eb83fc60b44faa00d5e62c69ee2d\",\"dweb:/ipfs/QmYRRfdW9qyerUaEyHSEi7LY7WymkKUQQ61YQdxVorGdNW\"]},\"@summa-tx/bitcoin-spv-sol/contracts/BytesLib.sol\":{\"keccak256\":\"0x16296b4a97cdac10bb9cd4666d29310fe25897b7644dc04ad053ae09d4aeea9c\",\"urls\":[\"bzzr://27b097b56c0dc070a4e80572e01ffc28d26d83490f56fe0947a4d62ab09e1c48\",\"dweb:/ipfs/QmXwiQCVL8MS3R2NDWwTozngTjrD3SmWmZ6fbNGgQiwdDd\"]},\"@summa-tx/bitcoin-spv-sol/contracts/SafeMath.sol\":{\"keccak256\":\"0x22d34c04c68c2a77ee83e2ef3756f6e6bad6ad675560d777e612315d7eb83935\",\"urls\":[\"bzzr://a3312aa9977669832679852788efb21430fa70e5779243861ac6400fdc72f3de\",\"dweb:/ipfs/QmWADdVTCSyvtgb76AxFFkAr9h9jbY57Mj5X6xiEqCqmMu\"]},\"@summa-tx/bitcoin-spv-sol/contracts/ValidateSPV.sol\":{\"keccak256\":\"0x1b26b6ec30dcf0adb9cd7a8035a6cf0a565e8e12f0adf9f0ccda1f6b78e453c1\",\"urls\":[\"bzzr://ac9acd02674dcf17e3d6b58322efbfb42111dac4332cd9ee31ba9c7b8aa9fb47\",\"dweb:/ipfs/QmcwStYYD1NMVRzwcRP4v6eCscbMLdpjp45itWnfBaVnkf\"]}},\"version\":1}", "bytecode": "0x60556023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea265627a7a72305820b0bc947528edc82fa980956c2900b774fb5d708c021412936e105b08fa7bfc1d64736f6c634300050a0032", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea265627a7a72305820b0bc947528edc82fa980956c2900b774fb5d708c021412936e105b08fa7bfc1d64736f6c634300050a0032", "sourceMap": "218:9481:8:-;;132:2:-1;166:7;155:9;146:7;137:37;255:7;249:14;246:1;241:23;235:4;232:33;222:2;;269:9;222:2;293:9;290:1;283:20;323:4;314:7;306:22;347:7;338;331:24", "deployedSourceMap": "218:9481:8:-;;;;;;;;", "source": "pragma solidity ^0.5.10;\n\n/** @title ValidateSPV*/\n/** @author Summa (https://summa.one) */\n\nimport {BytesLib} from \"./BytesLib.sol\";\nimport {SafeMath} from \"./SafeMath.sol\";\nimport {BTCUtils} from \"./BTCUtils.sol\";\n\n\nlibrary ValidateSPV {\n\n using BTCUtils for bytes;\n using BTCUtils for uint256;\n using BytesLib for bytes;\n using SafeMath for uint256;\n\n enum InputTypes { NONE, LEGACY, COMPATIBILITY, WITNESS }\n enum OutputTypes { NONE, WPKH, WSH, OP_RETURN, PKH, SH, NONSTANDARD }\n\n uint256 constant ERR_BAD_LENGTH = 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;\n uint256 constant ERR_INVALID_CHAIN = 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe;\n uint256 constant ERR_LOW_WORK = 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd;\n\n function getErrBadLength() internal pure returns (uint256) {\n return ERR_BAD_LENGTH;\n }\n\n function getErrInvalidChain() internal pure returns (uint256) {\n return ERR_INVALID_CHAIN;\n }\n\n function getErrLowWork() internal pure returns (uint256) {\n return ERR_LOW_WORK;\n }\n\n /// @notice Validates a tx inclusion in the block\n /// @param _txid The txid (LE)\n /// @param _merkleRoot The merkle root (as in the block header)\n /// @param _intermediateNodes The proof's intermediate nodes (digests between leaf and root)\n /// @param _index The leaf's index in the tree (0-indexed)\n /// @return true if fully valid, false otherwise\n function prove(\n bytes32 _txid,\n bytes32 _merkleRoot,\n bytes memory _intermediateNodes,\n uint _index\n ) internal pure returns (bool) {\n // Shortcut the empty-block case\n if (_txid == _merkleRoot && _index == 0 && _intermediateNodes.length == 0) {\n return true;\n }\n\n bytes memory _proof = abi.encodePacked(_txid, _intermediateNodes, _merkleRoot);\n // If the Merkle proof failed, bubble up error\n return _proof.verifyHash256Merkle(_index);\n }\n\n /// @notice Hashes transaction to get txid\n /// @dev Supports Legacy and Witness\n /// @param _version 4-bytes version\n /// @param _vin Raw bytes length-prefixed input vector\n /// @param _vout Raw bytes length-prefixed output vector\n /// @ param _locktime 4-byte tx locktime\n /// @return 32-byte transaction id, little endian\n function calculateTxId(\n bytes memory _version,\n bytes memory _vin,\n bytes memory _vout,\n bytes memory _locktime\n ) internal pure returns (bytes32) {\n // Get transaction hash double-Sha256(version + nIns + inputs + nOuts + outputs + locktime)\n return abi.encodePacked(_version, _vin, _vout, _locktime).hash256();\n }\n\n /// @notice Parses a tx input from raw input bytes\n /// @dev Supports Legacy and Witness inputs\n /// @param _input Raw bytes tx input\n /// @return Tx input sequence number, tx hash, and index\n function parseInput(bytes memory _input) internal pure returns (uint32 _sequence, bytes32 _hash, uint32 _index, uint8 _inputType) {\n // NB: If the scriptsig is exactly 00, we are witness.\n // Otherwise we are compatibility\n if (_input.keccak256Slice(36, 1) != keccak256(hex\"00\")) {\n _sequence = _input.extractSequenceLegacy();\n bytes32 _witnessTag = _input.keccak256Slice(36, 3);\n\n if (_witnessTag == keccak256(hex\"220020\") || _witnessTag == keccak256(hex\"160014\")) {\n _inputType = uint8(InputTypes.COMPATIBILITY);\n } else {\n _inputType = uint8(InputTypes.LEGACY);\n }\n\n } else {\n _sequence = _input.extractSequenceWitness();\n _inputType = uint8(InputTypes.WITNESS);\n }\n\n return (_sequence, _input.extractInputTxId(), _input.extractTxIndex(), _inputType);\n }\n\n /// @notice Parses a tx output from raw output bytes\n /// @dev Differentiates by output script prefix, handles legacy and witness\n /// @param _output Raw bytes tx output\n /// @return Tx output value, output type, payload\n function parseOutput(bytes memory _output) internal pure returns (uint64 _value, uint8 _outputType, bytes memory _payload) {\n\n _value = _output.extractValue();\n\n if (_output.keccak256Slice(9, 1) == keccak256(hex\"6a\")) {\n // OP_RETURN\n _outputType = uint8(OutputTypes.OP_RETURN);\n _payload = _output.extractOpReturnData();\n } else {\n bytes32 _prefixHash = _output.keccak256Slice(8, 2);\n if (_prefixHash == keccak256(hex\"2200\")) {\n // P2WSH\n _outputType = uint8(OutputTypes.WSH);\n _payload = _output.slice(11, 32);\n } else if (_prefixHash == keccak256(hex\"1600\")) {\n // P2WPKH\n _outputType = uint8(OutputTypes.WPKH);\n _payload = _output.slice(11, 20);\n } else if (_prefixHash == keccak256(hex\"1976\")) {\n // PKH\n _outputType = uint8(OutputTypes.PKH);\n _payload = _output.slice(12, 20);\n } else if (_prefixHash == keccak256(hex\"17a9\")) {\n // SH\n _outputType = uint8(OutputTypes.SH);\n _payload = _output.slice(11, 20);\n } else {\n _outputType = uint8(OutputTypes.NONSTANDARD);\n }\n }\n\n return (_value, _outputType, _payload);\n }\n\n /// @notice Parses a block header struct from a bytestring\n /// @dev Block headers are always 80 bytes, see Bitcoin docs\n /// @return Header digest, version, previous block header hash, merkle root, timestamp, target, nonce\n function parseHeader(bytes memory _header) internal pure returns (\n bytes32 _digest,\n uint32 _version,\n bytes32 _prevHash,\n bytes32 _merkleRoot,\n uint32 _timestamp,\n uint256 _target,\n uint32 _nonce\n ) {\n // If header has an invalid length, bubble up error\n if (_header.length != 80) {\n return(_digest, _version, _prevHash, _merkleRoot, _timestamp, _target, _nonce);\n }\n\n _digest = abi.encodePacked(_header.hash256()).reverseEndianness().toBytes32();\n _version = uint32(_header.slice(0, 4).reverseEndianness().bytesToUint());\n _prevHash = _header.extractPrevBlockLE().toBytes32();\n _merkleRoot = _header.extractMerkleRootLE().toBytes32();\n _timestamp = _header.extractTimestamp();\n _target = _header.extractTarget();\n _nonce = uint32(_header.slice(76, 4).reverseEndianness().bytesToUint());\n\n return(_digest, _version, _prevHash, _merkleRoot, _timestamp, _target, _nonce);\n }\n\n /// @notice Checks validity of header chain\n /// @notice Compares the hash of each header to the prevHash in the next header\n /// @param _headers Raw byte array of header chain\n /// @return The total accumulated difficulty of the header chain, or an error code\n function validateHeaderChain(bytes memory _headers) internal view returns (uint256 _totalDifficulty) {\n\n // Check header chain length\n if (_headers.length % 80 != 0) {return ERR_BAD_LENGTH;}\n\n // Initialize header start index\n bytes32 _digest;\n\n _totalDifficulty = 0;\n\n for (uint256 _start = 0; _start < _headers.length; _start += 80) {\n\n // ith header start index and ith header\n bytes memory _header = _headers.slice(_start, 80);\n\n // After the first header, check that headers are in a chain\n if (_start != 0) {\n if (!validateHeaderPrevHash(_header, _digest)) {return ERR_INVALID_CHAIN;}\n }\n\n // ith header target\n uint256 _target = _header.extractTarget();\n\n // Require that the header has sufficient work\n _digest = _header.hash256View();\n if(uint256(_digest).reverseUint256() > _target) {\n return ERR_LOW_WORK;\n }\n\n // Add ith header difficulty to difficulty sum\n _totalDifficulty = _totalDifficulty.add(_target.calculateDifficulty());\n }\n }\n\n /// @notice Checks validity of header work\n /// @param _digest Header digest\n /// @param _target The target threshold\n /// @return true if header work is valid, false otherwise\n function validateHeaderWork(bytes32 _digest, uint256 _target) internal pure returns (bool) {\n if (_digest == bytes32(0)) {return false;}\n return (abi.encodePacked(_digest).reverseEndianness().bytesToUint() < _target);\n }\n\n /// @notice Checks validity of header chain\n /// @dev Compares current header prevHash to previous header's digest\n /// @param _header The raw bytes header\n /// @param _prevHeaderDigest The previous header's digest\n /// @return true if header chain is valid, false otherwise\n function validateHeaderPrevHash(bytes memory _header, bytes32 _prevHeaderDigest) internal pure returns (bool) {\n\n // Extract prevHash of current header\n bytes32 _prevHash = _header.extractPrevBlockLE().toBytes32();\n\n // Compare prevHash of current header to previous header's digest\n if (_prevHash != _prevHeaderDigest) {return false;}\n\n return true;\n }\n}\n", "sourcePath": "@summa-tx/bitcoin-spv-sol/contracts/ValidateSPV.sol", "ast": { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/ValidateSPV.sol", "exportedSymbols": { "ValidateSPV": [ 5008 ] }, "id": 5009, "nodeType": "SourceUnit", "nodes": [ { "id": 4368, "literals": [ "solidity", "^", "0.5", ".10" ], "nodeType": "PragmaDirective", "src": "0:24:8" }, { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/BytesLib.sol", "file": "./BytesLib.sol", "id": 4370, "nodeType": "ImportDirective", "scope": 5009, "sourceUnit": 4270, "src": "93:40:8", "symbolAliases": [ { "foreign": 4369, "local": null } ], "unitAlias": "" }, { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/SafeMath.sol", "file": "./SafeMath.sol", "id": 4372, "nodeType": "ImportDirective", "scope": 5009, "sourceUnit": 4367, "src": "134:40:8", "symbolAliases": [ { "foreign": 4371, "local": null } ], "unitAlias": "" }, { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/BTCUtils.sol", "file": "./BTCUtils.sol", "id": 4374, "nodeType": "ImportDirective", "scope": 5009, "sourceUnit": 4083, "src": "175:40:8", "symbolAliases": [ { "foreign": 4373, "local": null } ], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, "fullyImplemented": true, "id": 5008, "linearizedBaseContracts": [ 5008 ], "name": "ValidateSPV", "nodeType": "ContractDefinition", "nodes": [ { "id": 4377, "libraryName": { "contractScope": null, "id": 4375, "name": "BTCUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4082, "src": "251:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_BTCUtils_$4082", "typeString": "library BTCUtils" } }, "nodeType": "UsingForDirective", "src": "245:25:8", "typeName": { "id": 4376, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "264:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } } }, { "id": 4380, "libraryName": { "contractScope": null, "id": 4378, "name": "BTCUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4082, "src": "281:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_BTCUtils_$4082", "typeString": "library BTCUtils" } }, "nodeType": "UsingForDirective", "src": "275:27:8", "typeName": { "id": 4379, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "294:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 4383, "libraryName": { "contractScope": null, "id": 4381, "name": "BytesLib", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4269, "src": "313:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_BytesLib_$4269", "typeString": "library BytesLib" } }, "nodeType": "UsingForDirective", "src": "307:25:8", "typeName": { "id": 4382, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "326:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } } }, { "id": 4386, "libraryName": { "contractScope": null, "id": 4384, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4366, "src": "343:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$4366", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "337:27:8", "typeName": { "id": 4385, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "356:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "canonicalName": "ValidateSPV.InputTypes", "id": 4391, "members": [ { "id": 4387, "name": "NONE", "nodeType": "EnumValue", "src": "388:4:8" }, { "id": 4388, "name": "LEGACY", "nodeType": "EnumValue", "src": "394:6:8" }, { "id": 4389, "name": "COMPATIBILITY", "nodeType": "EnumValue", "src": "402:13:8" }, { "id": 4390, "name": "WITNESS", "nodeType": "EnumValue", "src": "417:7:8" } ], "name": "InputTypes", "nodeType": "EnumDefinition", "src": "370:56:8" }, { "canonicalName": "ValidateSPV.OutputTypes", "id": 4399, "members": [ { "id": 4392, "name": "NONE", "nodeType": "EnumValue", "src": "450:4:8" }, { "id": 4393, "name": "WPKH", "nodeType": "EnumValue", "src": "456:4:8" }, { "id": 4394, "name": "WSH", "nodeType": "EnumValue", "src": "462:3:8" }, { "id": 4395, "name": "OP_RETURN", "nodeType": "EnumValue", "src": "467:9:8" }, { "id": 4396, "name": "PKH", "nodeType": "EnumValue", "src": "478:3:8" }, { "id": 4397, "name": "SH", "nodeType": "EnumValue", "src": "483:2:8" }, { "id": 4398, "name": "NONSTANDARD", "nodeType": "EnumValue", "src": "487:11:8" } ], "name": "OutputTypes", "nodeType": "EnumDefinition", "src": "431:69:8" }, { "constant": true, "id": 4402, "name": "ERR_BAD_LENGTH", "nodeType": "VariableDeclaration", "scope": 5008, "src": "506:100:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4400, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "506:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "307866666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666", "id": 4401, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "540:66:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639935_by_1", "typeString": "int_const 1157...(70 digits omitted)...9935" }, "value": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff" }, "visibility": "internal" }, { "constant": true, "id": 4405, "name": "ERR_INVALID_CHAIN", "nodeType": "VariableDeclaration", "scope": 5008, "src": "612:103:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4403, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "612:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "307866666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666665", "id": 4404, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "649:66:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639934_by_1", "typeString": "int_const 1157...(70 digits omitted)...9934" }, "value": "0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe" }, "visibility": "internal" }, { "constant": true, "id": 4408, "name": "ERR_LOW_WORK", "nodeType": "VariableDeclaration", "scope": 5008, "src": "721:98:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4406, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "721:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "307866666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666664", "id": 4407, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "753:66:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639933_by_1", "typeString": "int_const 1157...(70 digits omitted)...9933" }, "value": "0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd" }, "visibility": "internal" }, { "body": { "id": 4415, "nodeType": "Block", "src": "885:38:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4413, "name": "ERR_BAD_LENGTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4402, "src": "902:14:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4412, "id": 4414, "nodeType": "Return", "src": "895:21:8" } ] }, "documentation": null, "id": 4416, "implemented": true, "kind": "function", "modifiers": [], "name": "getErrBadLength", "nodeType": "FunctionDefinition", "parameters": { "id": 4409, "nodeType": "ParameterList", "parameters": [], "src": "850:2:8" }, "returnParameters": { "id": 4412, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4411, "name": "", "nodeType": "VariableDeclaration", "scope": 4416, "src": "876:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4410, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "876:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "875:9:8" }, "scope": 5008, "src": "826:97:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4423, "nodeType": "Block", "src": "991:41:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4421, "name": "ERR_INVALID_CHAIN", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4405, "src": "1008:17:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4420, "id": 4422, "nodeType": "Return", "src": "1001:24:8" } ] }, "documentation": null, "id": 4424, "implemented": true, "kind": "function", "modifiers": [], "name": "getErrInvalidChain", "nodeType": "FunctionDefinition", "parameters": { "id": 4417, "nodeType": "ParameterList", "parameters": [], "src": "956:2:8" }, "returnParameters": { "id": 4420, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4419, "name": "", "nodeType": "VariableDeclaration", "scope": 4424, "src": "982:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4418, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "982:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "981:9:8" }, "scope": 5008, "src": "929:103:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4431, "nodeType": "Block", "src": "1095:36:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4429, "name": "ERR_LOW_WORK", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4408, "src": "1112:12:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4428, "id": 4430, "nodeType": "Return", "src": "1105:19:8" } ] }, "documentation": null, "id": 4432, "implemented": true, "kind": "function", "modifiers": [], "name": "getErrLowWork", "nodeType": "FunctionDefinition", "parameters": { "id": 4425, "nodeType": "ParameterList", "parameters": [], "src": "1060:2:8" }, "returnParameters": { "id": 4428, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4427, "name": "", "nodeType": "VariableDeclaration", "scope": 4432, "src": "1086:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4426, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1086:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1085:9:8" }, "scope": 5008, "src": "1038:93:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4475, "nodeType": "Block", "src": "1751:363:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 4456, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 4451, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4447, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4445, "name": "_txid", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4434, "src": "1806:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 4446, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4436, "src": "1815:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "1806:20:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "&&", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4450, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4448, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4440, "src": "1830:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4449, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1840:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1830:11:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1806:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "&&", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4455, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4452, "name": "_intermediateNodes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4438, "src": "1845:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4453, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1845:25:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4454, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1874:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1845:30:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1806:69:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4460, "nodeType": "IfStatement", "src": "1802:111:8", "trueBody": { "id": 4459, "nodeType": "Block", "src": "1877:36:8", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 4457, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "1898:4:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 4444, "id": 4458, "nodeType": "Return", "src": "1891:11:8" } ] } }, { "assignments": [ 4462 ], "declarations": [ { "constant": false, "id": 4462, "name": "_proof", "nodeType": "VariableDeclaration", "scope": 4475, "src": "1923:19:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4461, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1923:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "id": 4469, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4465, "name": "_txid", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4434, "src": "1962:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4466, "name": "_intermediateNodes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4438, "src": "1969:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4467, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4436, "src": "1989:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 4463, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "1945:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4464, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1945:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4468, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1945:56:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "VariableDeclarationStatement", "src": "1923:78:8" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4472, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4440, "src": "2100:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 4470, "name": "_proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4462, "src": "2073:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4471, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "verifyHash256Merkle", "nodeType": "MemberAccess", "referencedDeclaration": 4014, "src": "2073:26:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_bool_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (bool)" } }, "id": 4473, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2073:34:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 4444, "id": 4474, "nodeType": "Return", "src": "2066:41:8" } ] }, "documentation": "@notice Validates a tx inclusion in the block\n @param _txid The txid (LE)\n @param _merkleRoot The merkle root (as in the block header)\n @param _intermediateNodes The proof's intermediate nodes (digests between leaf and root)\n @param _index The leaf's index in the tree (0-indexed)\n @return true if fully valid, false otherwise", "id": 4476, "implemented": true, "kind": "function", "modifiers": [], "name": "prove", "nodeType": "FunctionDefinition", "parameters": { "id": 4441, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4434, "name": "_txid", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1611:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4433, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1611:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4436, "name": "_merkleRoot", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1634:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4435, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1634:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4438, "name": "_intermediateNodes", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1663:31:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4437, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1663:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4440, "name": "_index", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1704:11:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4439, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1704:4:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1601:120:8" }, "returnParameters": { "id": 4444, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4443, "name": "", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1745:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4442, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1745:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1744:6:8" }, "scope": 5008, "src": "1587:527:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4499, "nodeType": "Block", "src": "2706:184:8", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4491, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4478, "src": "2840:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4492, "name": "_vin", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4480, "src": "2850:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4493, "name": "_vout", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4482, "src": "2856:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4494, "name": "_locktime", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4484, "src": "2863:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "id": 4489, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "2823:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4490, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2823:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4495, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2823:50:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4496, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "hash256", "nodeType": "MemberAccess", "referencedDeclaration": 2792, "src": "2823:58:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4497, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2823:60:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "functionReturnParameters": 4488, "id": 4498, "nodeType": "Return", "src": "2816:67:8" } ] }, "documentation": "@notice Hashes transaction to get txid\n @dev Supports Legacy and Witness\n @param _version 4-bytes version\n @param _vin Raw bytes length-prefixed input vector\n @param _vout Raw bytes length-prefixed output vector\n @ param _locktime 4-byte tx locktime\n @return 32-byte transaction id, little endian", "id": 4500, "implemented": true, "kind": "function", "modifiers": [], "name": "calculateTxId", "nodeType": "FunctionDefinition", "parameters": { "id": 4485, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4478, "name": "_version", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2559:21:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4477, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2559:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4480, "name": "_vin", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2590:17:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4479, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2590:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4482, "name": "_vout", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2617:18:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4481, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2617:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4484, "name": "_locktime", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2645:22:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4483, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2645:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "2549:124:8" }, "returnParameters": { "id": 4488, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4487, "name": "", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2697:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4486, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "2697:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "2696:9:8" }, "scope": 5008, "src": "2527:363:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4590, "nodeType": "Block", "src": "3260:783:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4521, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3336", "id": 4515, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3405:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, "value": "36" }, { "argumentTypes": null, "hexValue": "31", "id": 4516, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3409:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "id": 4513, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3383:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4514, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "3383:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4517, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3383:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "00", "id": 4519, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3425:7:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_bc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a", "typeString": "literal_string \"\u0000\"" }, "value": "\u0000" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_bc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a", "typeString": "literal_string \"\u0000\"" } ], "id": 4518, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "3415:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4520, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3415:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3383:50:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4578, "nodeType": "Block", "src": "3824:120:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4569, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4565, "name": "_sequence", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4505, "src": "3838:9:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4566, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3850:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4567, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractSequenceWitness", "nodeType": "MemberAccess", "referencedDeclaration": 3120, "src": "3850:29:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4568, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3850:31:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "3838:43:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4570, "nodeType": "ExpressionStatement", "src": "3838:43:8" }, { "expression": { "argumentTypes": null, "id": 4576, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4571, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "3895:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4573, "name": "InputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4391, "src": "3914:10:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_InputTypes_$4391_$", "typeString": "type(enum ValidateSPV.InputTypes)" } }, "id": 4574, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "WITNESS", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3914:18:8", "typeDescriptions": { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } ], "id": 4572, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3908:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4575, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3908:25:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "3895:38:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4577, "nodeType": "ExpressionStatement", "src": "3895:38:8" } ] }, "id": 4579, "nodeType": "IfStatement", "src": "3379:565:8", "trueBody": { "id": 4564, "nodeType": "Block", "src": "3435:383:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4526, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4522, "name": "_sequence", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4505, "src": "3449:9:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4523, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3461:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4524, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractSequenceLegacy", "nodeType": "MemberAccess", "referencedDeclaration": 2989, "src": "3461:28:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4525, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3461:30:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "3449:42:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4527, "nodeType": "ExpressionStatement", "src": "3449:42:8" }, { "assignments": [ 4529 ], "declarations": [ { "constant": false, "id": 4529, "name": "_witnessTag", "nodeType": "VariableDeclaration", "scope": 4564, "src": "3505:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4528, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "3505:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4535, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3336", "id": 4532, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3549:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, "value": "36" }, { "argumentTypes": null, "hexValue": "33", "id": 4533, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3553:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" } ], "expression": { "argumentTypes": null, "id": 4530, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3527:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4531, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "3527:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4534, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3527:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "3505:50:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 4546, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4540, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4536, "name": "_witnessTag", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4529, "src": "3574:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "220020", "id": 4538, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3599:11:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_33b5f6d42eef1e9e31f928375546beb5ccbc06516f549bb51f33536680ad4439", "typeString": "literal_string \"\"\u0000 \"" }, "value": "\"\u0000 " } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_33b5f6d42eef1e9e31f928375546beb5ccbc06516f549bb51f33536680ad4439", "typeString": "literal_string \"\"\u0000 \"" } ], "id": 4537, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "3589:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4539, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3589:22:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3574:37:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4545, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4541, "name": "_witnessTag", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4529, "src": "3615:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "160014", "id": 4543, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3640:11:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_bde11925feafe00f4d9d48ef4480be1ea68d808b9c557770a6133e20d41f44bf", "typeString": "literal_string \"\u0016\u0000\u0014\"" }, "value": "\u0016\u0000\u0014" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_bde11925feafe00f4d9d48ef4480be1ea68d808b9c557770a6133e20d41f44bf", "typeString": "literal_string \"\u0016\u0000\u0014\"" } ], "id": 4542, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "3630:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4544, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3630:22:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3615:37:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "3574:78:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4562, "nodeType": "Block", "src": "3737:70:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4560, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4555, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "3755:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4557, "name": "InputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4391, "src": "3774:10:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_InputTypes_$4391_$", "typeString": "type(enum ValidateSPV.InputTypes)" } }, "id": 4558, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "LEGACY", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3774:17:8", "typeDescriptions": { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } ], "id": 4556, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3768:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4559, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3768:24:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "3755:37:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4561, "nodeType": "ExpressionStatement", "src": "3755:37:8" } ] }, "id": 4563, "nodeType": "IfStatement", "src": "3570:237:8", "trueBody": { "id": 4554, "nodeType": "Block", "src": "3654:77:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4552, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4547, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "3672:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4549, "name": "InputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4391, "src": "3691:10:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_InputTypes_$4391_$", "typeString": "type(enum ValidateSPV.InputTypes)" } }, "id": 4550, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "COMPATIBILITY", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3691:24:8", "typeDescriptions": { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } ], "id": 4548, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3685:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4551, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3685:31:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "3672:44:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4553, "nodeType": "ExpressionStatement", "src": "3672:44:8" } ] } } ] } }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4580, "name": "_sequence", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4505, "src": "3962:9:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4581, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3973:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4582, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractInputTxId", "nodeType": "MemberAccess", "referencedDeclaration": 3177, "src": "3973:23:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4583, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3973:25:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4584, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "4000:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4585, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTxIndex", "nodeType": "MemberAccess", "referencedDeclaration": 3217, "src": "4000:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4586, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4000:23:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4587, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "4025:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "id": 4588, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "3961:75:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_uint32_$_t_bytes32_$_t_uint32_$_t_uint8_$", "typeString": "tuple(uint32,bytes32,uint32,uint8)" } }, "functionReturnParameters": 4512, "id": 4589, "nodeType": "Return", "src": "3954:82:8" } ] }, "documentation": "@notice Parses a tx input from raw input bytes\n @dev Supports Legacy and Witness inputs\n @param _input Raw bytes tx input\n @return Tx input sequence number, tx hash, and index", "id": 4591, "implemented": true, "kind": "function", "modifiers": [], "name": "parseInput", "nodeType": "FunctionDefinition", "parameters": { "id": 4503, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4502, "name": "_input", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3150:19:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4501, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3150:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "3149:21:8" }, "returnParameters": { "id": 4512, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4505, "name": "_sequence", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3194:16:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4504, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "3194:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4507, "name": "_hash", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3212:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4506, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "3212:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4509, "name": "_index", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3227:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4508, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "3227:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4511, "name": "_inputType", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3242:16:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 4510, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "3242:5:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" } ], "src": "3193:66:8" }, "scope": 5008, "src": "3130:913:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4742, "nodeType": "Block", "src": "4434:1241:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4606, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4602, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4596, "src": "4445:6:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4603, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4454:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4604, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractValue", "nodeType": "MemberAccess", "referencedDeclaration": 3382, "src": "4454:20:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint64_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint64)" } }, "id": 4605, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4454:22:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "src": "4445:31:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "id": 4607, "nodeType": "ExpressionStatement", "src": "4445:31:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4616, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "39", "id": 4610, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4514:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_9_by_1", "typeString": "int_const 9" }, "value": "9" }, { "argumentTypes": null, "hexValue": "31", "id": 4611, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4517:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_9_by_1", "typeString": "int_const 9" }, { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "id": 4608, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4491:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4609, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "4491:22:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4612, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4491:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "6a", "id": 4614, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4533:7:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b31d742db54d6961c6b346af2c9c4c495eb8aff2ebf6b3699e052d1cef5cf50b", "typeString": "literal_string \"j\"" }, "value": "j" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_b31d742db54d6961c6b346af2c9c4c495eb8aff2ebf6b3699e052d1cef5cf50b", "typeString": "literal_string \"j\"" } ], "id": 4613, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "4523:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4615, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4523:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4491:50:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4735, "nodeType": "Block", "src": "4695:925:8", "statements": [ { "assignments": [ 4632 ], "declarations": [ { "constant": false, "id": 4632, "name": "_prefixHash", "nodeType": "VariableDeclaration", "scope": 4735, "src": "4709:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4631, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "4709:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4638, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "38", "id": 4635, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4754:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, { "argumentTypes": null, "hexValue": "32", "id": 4636, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4757:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" } ], "expression": { "argumentTypes": null, "id": 4633, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4731:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4634, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "4731:22:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4637, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4731:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "4709:50:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4643, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4639, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "4777:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "2200", "id": 4641, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4802:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b07fb0a3471486f9ccb02aab1d525df60d82925cb2d27860f923e655d76f35fc", "typeString": "literal_string \"\"\u0000\"" }, "value": "\"\u0000" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_b07fb0a3471486f9ccb02aab1d525df60d82925cb2d27860f923e655d76f35fc", "typeString": "literal_string \"\"\u0000\"" } ], "id": 4640, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "4792:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4642, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4792:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4777:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4664, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4660, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "4968:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "1600", "id": 4662, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4993:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ef68c1dfb3907c1a4ede55ac1ea785d8b99118a36999824e5ba557e25a67f448", "typeString": "literal_string \"\u0016\u0000\"" }, "value": "\u0016\u0000" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_ef68c1dfb3907c1a4ede55ac1ea785d8b99118a36999824e5ba557e25a67f448", "typeString": "literal_string \"\u0016\u0000\"" } ], "id": 4661, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "4983:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4663, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4983:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4968:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4685, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4681, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "5161:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "1976", "id": 4683, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "5186:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ad81b5075fc2fab784a78e7b78827a4218c83feb16873a545f008e5cd8266b6d", "typeString": "literal_string \"\u0019v\"" }, "value": "\u0019v" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_ad81b5075fc2fab784a78e7b78827a4218c83feb16873a545f008e5cd8266b6d", "typeString": "literal_string \"\u0019v\"" } ], "id": 4682, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "5176:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4684, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5176:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "5161:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4706, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4702, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "5350:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "17a9", "id": 4704, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "5375:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_8c372bc872581e21a019e9c438c7646f8a6cf04e4c2acf7045e86bf2fabee118", "typeString": "literal_string (contains invalid UTF-8 sequence at position 1)" }, "value": null } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_8c372bc872581e21a019e9c438c7646f8a6cf04e4c2acf7045e86bf2fabee118", "typeString": "literal_string (contains invalid UTF-8 sequence at position 1)" } ], "id": 4703, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "5365:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4705, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5365:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "5350:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4730, "nodeType": "Block", "src": "5533:77:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4728, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4723, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5551:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4725, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5571:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4726, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "NONSTANDARD", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5571:23:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4724, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5565:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4727, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5565:30:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5551:44:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4729, "nodeType": "ExpressionStatement", "src": "5551:44:8" } ] }, "id": 4731, "nodeType": "IfStatement", "src": "5346:264:8", "trueBody": { "id": 4722, "nodeType": "Block", "src": "5387:140:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4712, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4707, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5427:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4709, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5447:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4710, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "SH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5447:14:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4708, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5441:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4711, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5441:21:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5427:35:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4713, "nodeType": "ExpressionStatement", "src": "5427:35:8" }, { "expression": { "argumentTypes": null, "id": 4720, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4714, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5480:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3131", "id": 4717, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5505:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, "value": "11" }, { "argumentTypes": null, "hexValue": "3230", "id": 4718, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5509:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "expression": { "argumentTypes": null, "id": 4715, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "5491:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4716, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "5491:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4719, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5491:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "5480:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4721, "nodeType": "ExpressionStatement", "src": "5480:32:8" } ] } }, "id": 4732, "nodeType": "IfStatement", "src": "5157:453:8", "trueBody": { "id": 4701, "nodeType": "Block", "src": "5198:142:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4691, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4686, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5239:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4688, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5259:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4689, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "PKH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5259:15:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4687, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5253:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4690, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5253:22:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5239:36:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4692, "nodeType": "ExpressionStatement", "src": "5239:36:8" }, { "expression": { "argumentTypes": null, "id": 4699, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4693, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5293:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3132", "id": 4696, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5318:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_12_by_1", "typeString": "int_const 12" }, "value": "12" }, { "argumentTypes": null, "hexValue": "3230", "id": 4697, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5322:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_12_by_1", "typeString": "int_const 12" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "expression": { "argumentTypes": null, "id": 4694, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "5304:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4695, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "5304:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4698, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5304:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "5293:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4700, "nodeType": "ExpressionStatement", "src": "5293:32:8" } ] } }, "id": 4733, "nodeType": "IfStatement", "src": "4964:646:8", "trueBody": { "id": 4680, "nodeType": "Block", "src": "5005:146:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4670, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4665, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5049:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4667, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5069:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4668, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "WPKH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5069:16:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4666, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5063:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4669, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5063:23:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5049:37:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4671, "nodeType": "ExpressionStatement", "src": "5049:37:8" }, { "expression": { "argumentTypes": null, "id": 4678, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4672, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5104:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3131", "id": 4675, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5129:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, "value": "11" }, { "argumentTypes": null, "hexValue": "3230", "id": 4676, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5133:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "expression": { "argumentTypes": null, "id": 4673, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "5115:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4674, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "5115:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4677, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5115:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "5104:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4679, "nodeType": "ExpressionStatement", "src": "5104:32:8" } ] } }, "id": 4734, "nodeType": "IfStatement", "src": "4773:837:8", "trueBody": { "id": 4659, "nodeType": "Block", "src": "4814:144:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4649, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4644, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "4857:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4646, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "4877:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4647, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "WSH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4877:15:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4645, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4871:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4648, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4871:22:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "4857:36:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4650, "nodeType": "ExpressionStatement", "src": "4857:36:8" }, { "expression": { "argumentTypes": null, "id": 4657, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4651, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "4911:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3131", "id": 4654, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4936:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, "value": "11" }, { "argumentTypes": null, "hexValue": "3332", "id": 4655, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4940:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" } ], "expression": { "argumentTypes": null, "id": 4652, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4922:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4653, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "4922:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4922:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "4911:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4658, "nodeType": "ExpressionStatement", "src": "4911:32:8" } ] } } ] }, "id": 4736, "nodeType": "IfStatement", "src": "4487:1133:8", "trueBody": { "id": 4630, "nodeType": "Block", "src": "4543:146:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4622, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4617, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "4582:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4619, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "4602:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4620, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "OP_RETURN", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4602:21:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4618, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4596:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4621, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4596:28:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "4582:42:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4623, "nodeType": "ExpressionStatement", "src": "4582:42:8" }, { "expression": { "argumentTypes": null, "id": 4628, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4624, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "4638:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4625, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4649:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4626, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractOpReturnData", "nodeType": "MemberAccess", "referencedDeclaration": 3419, "src": "4649:27:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4627, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4649:29:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "4638:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4629, "nodeType": "ExpressionStatement", "src": "4638:40:8" } ] } }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4737, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4596, "src": "5638:6:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, { "argumentTypes": null, "id": 4738, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5646:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, { "argumentTypes": null, "id": 4739, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5659:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "id": 4740, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "5637:31:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_uint64_$_t_uint8_$_t_bytes_memory_ptr_$", "typeString": "tuple(uint64,uint8,bytes memory)" } }, "functionReturnParameters": 4601, "id": 4741, "nodeType": "Return", "src": "5630:38:8" } ] }, "documentation": "@notice Parses a tx output from raw output bytes\n @dev Differentiates by output script prefix, handles legacy and witness\n @param _output Raw bytes tx output\n @return Tx output value, output type, payload", "id": 4743, "implemented": true, "kind": "function", "modifiers": [], "name": "parseOutput", "nodeType": "FunctionDefinition", "parameters": { "id": 4594, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4593, "name": "_output", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4332:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4592, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4332:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4331:22:8" }, "returnParameters": { "id": 4601, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4596, "name": "_value", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4377:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" }, "typeName": { "id": 4595, "name": "uint64", "nodeType": "ElementaryTypeName", "src": "4377:6:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4598, "name": "_outputType", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4392:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 4597, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "4392:5:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4600, "name": "_payload", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4411:21:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4599, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4411:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4376:57:8" }, "scope": 5008, "src": "4311:1364:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4855, "nodeType": "Block", "src": "6207:764:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4765, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4762, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6281:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4763, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6281:14:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "3830", "id": 4764, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6299:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" }, "src": "6281:20:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4776, "nodeType": "IfStatement", "src": "6277:129:8", "trueBody": { "id": 4775, "nodeType": "Block", "src": "6303:103:8", "statements": [ { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4766, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4748, "src": "6324:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4767, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4750, "src": "6333:8:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4768, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4752, "src": "6343:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4769, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4754, "src": "6354:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4770, "name": "_timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4756, "src": "6367:10:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4771, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4758, "src": "6379:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4772, "name": "_nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4760, "src": "6388:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } } ], "id": 4773, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "6323:72:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$_t_uint32_$_t_uint256_$_t_uint32_$", "typeString": "tuple(bytes32,uint32,bytes32,bytes32,uint32,uint256,uint32)" } }, "functionReturnParameters": 4761, "id": 4774, "nodeType": "Return", "src": "6317:78:8" } ] } }, { "expression": { "argumentTypes": null, "id": 4788, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4777, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4748, "src": "6416:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4780, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6443:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4781, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "hash256", "nodeType": "MemberAccess", "referencedDeclaration": 2792, "src": "6443:15:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4782, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6443:17:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 4778, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "6426:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4779, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6426:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4783, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6426:35:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4784, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "6426:53:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4785, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6426:55:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4786, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "6426:65:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4787, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6426:67:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "6416:77:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4789, "nodeType": "ExpressionStatement", "src": "6416:77:8" }, { "expression": { "argumentTypes": null, "id": 4802, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4790, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4750, "src": "6503:8:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 4794, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6535:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, { "argumentTypes": null, "hexValue": "34", "id": 4795, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6538:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" } ], "expression": { "argumentTypes": null, "id": 4792, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6521:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4793, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "6521:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4796, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6521:19:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4797, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "6521:37:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4798, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6521:39:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4799, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "bytesToUint", "nodeType": "MemberAccess", "referencedDeclaration": 2726, "src": "6521:51:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4800, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6521:53:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4791, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6514:6:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint32_$", "typeString": "type(uint32)" }, "typeName": "uint32" }, "id": 4801, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6514:61:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "6503:72:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4803, "nodeType": "ExpressionStatement", "src": "6503:72:8" }, { "expression": { "argumentTypes": null, "id": 4810, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4804, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4752, "src": "6585:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4805, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6597:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4806, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractPrevBlockLE", "nodeType": "MemberAccess", "referencedDeclaration": 3804, "src": "6597:26:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4807, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6597:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4808, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "6597:38:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4809, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6597:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "6585:52:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4811, "nodeType": "ExpressionStatement", "src": "6585:52:8" }, { "expression": { "argumentTypes": null, "id": 4818, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4812, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4754, "src": "6647:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4813, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6661:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4814, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractMerkleRootLE", "nodeType": "MemberAccess", "referencedDeclaration": 3718, "src": "6661:27:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4815, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6661:29:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4816, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "6661:39:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4817, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6661:41:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "6647:55:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4819, "nodeType": "ExpressionStatement", "src": "6647:55:8" }, { "expression": { "argumentTypes": null, "id": 4824, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4820, "name": "_timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4756, "src": "6712:10:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4821, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6725:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4822, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTimestamp", "nodeType": "MemberAccess", "referencedDeclaration": 3850, "src": "6725:24:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4823, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6725:26:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "6712:39:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4825, "nodeType": "ExpressionStatement", "src": "6712:39:8" }, { "expression": { "argumentTypes": null, "id": 4830, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4826, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4758, "src": "6761:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4827, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6771:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4828, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTarget", "nodeType": "MemberAccess", "referencedDeclaration": 3777, "src": "6771:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4829, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6771:23:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6761:33:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4831, "nodeType": "ExpressionStatement", "src": "6761:33:8" }, { "expression": { "argumentTypes": null, "id": 4844, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4832, "name": "_nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4760, "src": "6804:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3736", "id": 4836, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6834:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_76_by_1", "typeString": "int_const 76" }, "value": "76" }, { "argumentTypes": null, "hexValue": "34", "id": 4837, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6838:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_76_by_1", "typeString": "int_const 76" }, { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" } ], "expression": { "argumentTypes": null, "id": 4834, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6820:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4835, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "6820:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4838, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6820:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4839, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "6820:38:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4840, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6820:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4841, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "bytesToUint", "nodeType": "MemberAccess", "referencedDeclaration": 2726, "src": "6820:52:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4842, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6820:54:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4833, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6813:6:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint32_$", "typeString": "type(uint32)" }, "typeName": "uint32" }, "id": 4843, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6813:62:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "6804:71:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4845, "nodeType": "ExpressionStatement", "src": "6804:71:8" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4846, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4748, "src": "6893:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4847, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4750, "src": "6902:8:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4848, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4752, "src": "6912:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4849, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4754, "src": "6923:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4850, "name": "_timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4756, "src": "6936:10:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4851, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4758, "src": "6948:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4852, "name": "_nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4760, "src": "6957:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } } ], "id": 4853, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "6892:72:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$_t_uint32_$_t_uint256_$_t_uint32_$", "typeString": "tuple(bytes32,uint32,bytes32,bytes32,uint32,uint256,uint32)" } }, "functionReturnParameters": 4761, "id": 4854, "nodeType": "Return", "src": "6886:78:8" } ] }, "documentation": "@notice Parses a block header struct from a bytestring\n @dev Block headers are always 80 bytes, see Bitcoin docs\n @return Header digest, version, previous block header hash, merkle root, timestamp, target, nonce", "id": 4856, "implemented": true, "kind": "function", "modifiers": [], "name": "parseHeader", "nodeType": "FunctionDefinition", "parameters": { "id": 4746, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4745, "name": "_header", "nodeType": "VariableDeclaration", "scope": 4856, "src": "5975:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4744, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "5975:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "5974:22:8" }, "returnParameters": { "id": 4761, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4748, "name": "_digest", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6029:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4747, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6029:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4750, "name": "_version", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6054:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4749, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "6054:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4752, "name": "_prevHash", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6079:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4751, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6079:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4754, "name": "_merkleRoot", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6106:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4753, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6106:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4756, "name": "_timestamp", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6135:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4755, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "6135:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4758, "name": "_target", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6162:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4757, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6162:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4760, "name": "_nonce", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6187:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4759, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "6187:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" } ], "src": "6019:187:8" }, "scope": 5008, "src": "5954:1017:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4948, "nodeType": "Block", "src": "7392:1071:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4868, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4866, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4863, "name": "_headers", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "7444:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4864, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7444:15:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "%", "rightExpression": { "argumentTypes": null, "hexValue": "3830", "id": 4865, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7462:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" }, "src": "7444:20:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4867, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7468:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7444:25:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4872, "nodeType": "IfStatement", "src": "7440:55:8", "trueBody": { "id": 4871, "nodeType": "Block", "src": "7471:24:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4869, "name": "ERR_BAD_LENGTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4402, "src": "7479:14:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4862, "id": 4870, "nodeType": "Return", "src": "7472:21:8" } ] } }, { "assignments": [ 4874 ], "declarations": [ { "constant": false, "id": 4874, "name": "_digest", "nodeType": "VariableDeclaration", "scope": 4948, "src": "7546:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4873, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "7546:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4875, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "7546:15:8" }, { "expression": { "argumentTypes": null, "id": 4878, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4876, "name": "_totalDifficulty", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4861, "src": "7572:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 4877, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7591:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7572:20:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4879, "nodeType": "ExpressionStatement", "src": "7572:20:8" }, { "body": { "id": 4946, "nodeType": "Block", "src": "7668:789:8", "statements": [ { "assignments": [ 4893 ], "declarations": [ { "constant": false, "id": 4893, "name": "_header", "nodeType": "VariableDeclaration", "scope": 4946, "src": "7736:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4892, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7736:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "id": 4899, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4896, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7774:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "3830", "id": 4897, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7782:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" } ], "expression": { "argumentTypes": null, "id": 4894, "name": "_headers", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "7759:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4895, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "7759:14:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4898, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7759:26:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "VariableDeclarationStatement", "src": "7736:49:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4902, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4900, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7877:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4901, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7887:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7877:11:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4913, "nodeType": "IfStatement", "src": "7873:123:8", "trueBody": { "id": 4912, "nodeType": "Block", "src": "7890:106:8", "statements": [ { "condition": { "argumentTypes": null, "id": 4907, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "7912:41:8", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4904, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4893, "src": "7936:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4905, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4874, "src": "7945:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 4903, "name": "validateHeaderPrevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5007, "src": "7913:22:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_bytes32_$returns$_t_bool_$", "typeString": "function (bytes memory,bytes32) pure returns (bool)" } }, "id": 4906, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7913:40:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4911, "nodeType": "IfStatement", "src": "7908:74:8", "trueBody": { "id": 4910, "nodeType": "Block", "src": "7955:27:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4908, "name": "ERR_INVALID_CHAIN", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4405, "src": "7963:17:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4862, "id": 4909, "nodeType": "Return", "src": "7956:24:8" } ] } } ] } }, { "assignments": [ 4915 ], "declarations": [ { "constant": false, "id": 4915, "name": "_target", "nodeType": "VariableDeclaration", "scope": 4946, "src": "8043:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4914, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8043:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4919, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4916, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4893, "src": "8061:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4917, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTarget", "nodeType": "MemberAccess", "referencedDeclaration": 3777, "src": "8061:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4918, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8061:23:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "8043:41:8" }, { "expression": { "argumentTypes": null, "id": 4924, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4920, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4874, "src": "8158:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4921, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4893, "src": "8168:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4922, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "hash256View", "nodeType": "MemberAccess", "referencedDeclaration": 2801, "src": "8168:19:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) view returns (bytes32)" } }, "id": 4923, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8168:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "8158:31:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4925, "nodeType": "ExpressionStatement", "src": "8158:31:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4932, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4927, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4874, "src": "8214:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 4926, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8206:7:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint256" }, "id": 4928, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8206:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4929, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseUint256", "nodeType": "MemberAccess", "referencedDeclaration": 2675, "src": "8206:31:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256) pure returns (uint256)" } }, "id": 4930, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8206:33:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "id": 4931, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4915, "src": "8242:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "8206:43:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4936, "nodeType": "IfStatement", "src": "8203:100:8", "trueBody": { "id": 4935, "nodeType": "Block", "src": "8251:52:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4933, "name": "ERR_LOW_WORK", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4408, "src": "8276:12:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4862, "id": 4934, "nodeType": "Return", "src": "8269:19:8" } ] } }, { "expression": { "argumentTypes": null, "id": 4944, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4937, "name": "_totalDifficulty", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4861, "src": "8376:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4940, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4915, "src": "8416:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4941, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "calculateDifficulty", "nodeType": "MemberAccess", "referencedDeclaration": 3790, "src": "8416:27:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256) pure returns (uint256)" } }, "id": 4942, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8416:29:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 4938, "name": "_totalDifficulty", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4861, "src": "8395:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4939, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 4365, "src": "8395:20:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 4943, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8395:51:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "8376:70:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4945, "nodeType": "ExpressionStatement", "src": "8376:70:8" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4887, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4884, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7628:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4885, "name": "_headers", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "7637:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4886, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7637:15:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7628:24:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 4947, "initializationExpression": { "assignments": [ 4881 ], "declarations": [ { "constant": false, "id": 4881, "name": "_start", "nodeType": "VariableDeclaration", "scope": 4947, "src": "7608:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4880, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7608:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4883, "initialValue": { "argumentTypes": null, "hexValue": "30", "id": 4882, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7625:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "7608:18:8" }, "loopExpression": { "expression": { "argumentTypes": null, "id": 4890, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4888, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7654:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3830", "id": 4889, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7664:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" }, "src": "7654:12:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4891, "nodeType": "ExpressionStatement", "src": "7654:12:8" }, "nodeType": "ForStatement", "src": "7603:854:8" } ] }, "documentation": "@notice Checks validity of header chain\n @notice Compares the hash of each header to the prevHash in the next header\n @param _headers Raw byte array of header chain\n @return The total accumulated difficulty of the header chain, or an error code", "id": 4949, "implemented": true, "kind": "function", "modifiers": [], "name": "validateHeaderChain", "nodeType": "FunctionDefinition", "parameters": { "id": 4859, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4858, "name": "_headers", "nodeType": "VariableDeclaration", "scope": 4949, "src": "7320:21:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4857, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7320:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "7319:23:8" }, "returnParameters": { "id": 4862, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4861, "name": "_totalDifficulty", "nodeType": "VariableDeclaration", "scope": 4949, "src": "7366:24:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4860, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7366:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7365:26:8" }, "scope": 5008, "src": "7291:1172:8", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4979, "nodeType": "Block", "src": "8784:146:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4962, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4958, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4951, "src": "8798:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 4960, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8817:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 4959, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8809:7:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4961, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8809:10:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "8798:21:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4966, "nodeType": "IfStatement", "src": "8794:42:8", "trueBody": { "id": 4965, "nodeType": "Block", "src": "8821:15:8", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 4963, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "8829:5:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 4957, "id": 4964, "nodeType": "Return", "src": "8822:12:8" } ] } }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4976, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4969, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4951, "src": "8870:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 4967, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "8853:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4968, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8853:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4970, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8853:25:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4971, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "8853:43:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4972, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8853:45:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4973, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "bytesToUint", "nodeType": "MemberAccess", "referencedDeclaration": 2726, "src": "8853:57:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4974, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8853:59:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "id": 4975, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4953, "src": "8915:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "8853:69:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 4977, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "8852:71:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 4957, "id": 4978, "nodeType": "Return", "src": "8845:78:8" } ] }, "documentation": "@notice Checks validity of header work\n @param _digest Header digest\n @param _target The target threshold\n @return true if header work is valid, false otherwise", "id": 4980, "implemented": true, "kind": "function", "modifiers": [], "name": "validateHeaderWork", "nodeType": "FunctionDefinition", "parameters": { "id": 4954, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4951, "name": "_digest", "nodeType": "VariableDeclaration", "scope": 4980, "src": "8721:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4950, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "8721:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4953, "name": "_target", "nodeType": "VariableDeclaration", "scope": 4980, "src": "8738:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4952, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8738:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8720:34:8" }, "returnParameters": { "id": 4957, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4956, "name": "", "nodeType": "VariableDeclaration", "scope": 4980, "src": "8778:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4955, "name": "bool", "nodeType": "ElementaryTypeName", "src": "8778:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "8777:6:8" }, "scope": 5008, "src": "8693:237:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5006, "nodeType": "Block", "src": "9416:281:8", "statements": [ { "assignments": [ 4990 ], "declarations": [ { "constant": false, "id": 4990, "name": "_prevHash", "nodeType": "VariableDeclaration", "scope": 5006, "src": "9473:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4989, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "9473:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4996, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4991, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4982, "src": "9493:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4992, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractPrevBlockLE", "nodeType": "MemberAccess", "referencedDeclaration": 3804, "src": "9493:26:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4993, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9493:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4994, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "9493:38:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4995, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9493:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "9473:60:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4999, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4997, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4990, "src": "9622:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "id": 4998, "name": "_prevHeaderDigest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4984, "src": "9635:17:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "9622:30:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5003, "nodeType": "IfStatement", "src": "9618:51:8", "trueBody": { "id": 5002, "nodeType": "Block", "src": "9654:15:8", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 5000, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "9662:5:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 4988, "id": 5001, "nodeType": "Return", "src": "9655:12:8" } ] } }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 5004, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "9686:4:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 4988, "id": 5005, "nodeType": "Return", "src": "9679:11:8" } ] }, "documentation": "@notice Checks validity of header chain\n @dev Compares current header prevHash to previous header's digest\n @param _header The raw bytes header\n @param _prevHeaderDigest The previous header's digest\n @return true if header chain is valid, false otherwise", "id": 5007, "implemented": true, "kind": "function", "modifiers": [], "name": "validateHeaderPrevHash", "nodeType": "FunctionDefinition", "parameters": { "id": 4985, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4982, "name": "_header", "nodeType": "VariableDeclaration", "scope": 5007, "src": "9338:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4981, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "9338:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4984, "name": "_prevHeaderDigest", "nodeType": "VariableDeclaration", "scope": 5007, "src": "9360:25:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4983, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "9360:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "9337:49:8" }, "returnParameters": { "id": 4988, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4987, "name": "", "nodeType": "VariableDeclaration", "scope": 5007, "src": "9410:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4986, "name": "bool", "nodeType": "ElementaryTypeName", "src": "9410:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "9409:6:8" }, "scope": 5008, "src": "9306:391:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" } ], "scope": 5009, "src": "218:9481:8" } ], "src": "0:9700:8" }, "legacyAST": { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/ValidateSPV.sol", "exportedSymbols": { "ValidateSPV": [ 5008 ] }, "id": 5009, "nodeType": "SourceUnit", "nodes": [ { "id": 4368, "literals": [ "solidity", "^", "0.5", ".10" ], "nodeType": "PragmaDirective", "src": "0:24:8" }, { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/BytesLib.sol", "file": "./BytesLib.sol", "id": 4370, "nodeType": "ImportDirective", "scope": 5009, "sourceUnit": 4270, "src": "93:40:8", "symbolAliases": [ { "foreign": 4369, "local": null } ], "unitAlias": "" }, { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/SafeMath.sol", "file": "./SafeMath.sol", "id": 4372, "nodeType": "ImportDirective", "scope": 5009, "sourceUnit": 4367, "src": "134:40:8", "symbolAliases": [ { "foreign": 4371, "local": null } ], "unitAlias": "" }, { "absolutePath": "@summa-tx/bitcoin-spv-sol/contracts/BTCUtils.sol", "file": "./BTCUtils.sol", "id": 4374, "nodeType": "ImportDirective", "scope": 5009, "sourceUnit": 4083, "src": "175:40:8", "symbolAliases": [ { "foreign": 4373, "local": null } ], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, "fullyImplemented": true, "id": 5008, "linearizedBaseContracts": [ 5008 ], "name": "ValidateSPV", "nodeType": "ContractDefinition", "nodes": [ { "id": 4377, "libraryName": { "contractScope": null, "id": 4375, "name": "BTCUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4082, "src": "251:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_BTCUtils_$4082", "typeString": "library BTCUtils" } }, "nodeType": "UsingForDirective", "src": "245:25:8", "typeName": { "id": 4376, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "264:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } } }, { "id": 4380, "libraryName": { "contractScope": null, "id": 4378, "name": "BTCUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4082, "src": "281:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_BTCUtils_$4082", "typeString": "library BTCUtils" } }, "nodeType": "UsingForDirective", "src": "275:27:8", "typeName": { "id": 4379, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "294:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 4383, "libraryName": { "contractScope": null, "id": 4381, "name": "BytesLib", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4269, "src": "313:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_BytesLib_$4269", "typeString": "library BytesLib" } }, "nodeType": "UsingForDirective", "src": "307:25:8", "typeName": { "id": 4382, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "326:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } } }, { "id": 4386, "libraryName": { "contractScope": null, "id": 4384, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4366, "src": "343:8:8", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$4366", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "337:27:8", "typeName": { "id": 4385, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "356:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "canonicalName": "ValidateSPV.InputTypes", "id": 4391, "members": [ { "id": 4387, "name": "NONE", "nodeType": "EnumValue", "src": "388:4:8" }, { "id": 4388, "name": "LEGACY", "nodeType": "EnumValue", "src": "394:6:8" }, { "id": 4389, "name": "COMPATIBILITY", "nodeType": "EnumValue", "src": "402:13:8" }, { "id": 4390, "name": "WITNESS", "nodeType": "EnumValue", "src": "417:7:8" } ], "name": "InputTypes", "nodeType": "EnumDefinition", "src": "370:56:8" }, { "canonicalName": "ValidateSPV.OutputTypes", "id": 4399, "members": [ { "id": 4392, "name": "NONE", "nodeType": "EnumValue", "src": "450:4:8" }, { "id": 4393, "name": "WPKH", "nodeType": "EnumValue", "src": "456:4:8" }, { "id": 4394, "name": "WSH", "nodeType": "EnumValue", "src": "462:3:8" }, { "id": 4395, "name": "OP_RETURN", "nodeType": "EnumValue", "src": "467:9:8" }, { "id": 4396, "name": "PKH", "nodeType": "EnumValue", "src": "478:3:8" }, { "id": 4397, "name": "SH", "nodeType": "EnumValue", "src": "483:2:8" }, { "id": 4398, "name": "NONSTANDARD", "nodeType": "EnumValue", "src": "487:11:8" } ], "name": "OutputTypes", "nodeType": "EnumDefinition", "src": "431:69:8" }, { "constant": true, "id": 4402, "name": "ERR_BAD_LENGTH", "nodeType": "VariableDeclaration", "scope": 5008, "src": "506:100:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4400, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "506:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "307866666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666", "id": 4401, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "540:66:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639935_by_1", "typeString": "int_const 1157...(70 digits omitted)...9935" }, "value": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff" }, "visibility": "internal" }, { "constant": true, "id": 4405, "name": "ERR_INVALID_CHAIN", "nodeType": "VariableDeclaration", "scope": 5008, "src": "612:103:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4403, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "612:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "307866666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666665", "id": 4404, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "649:66:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639934_by_1", "typeString": "int_const 1157...(70 digits omitted)...9934" }, "value": "0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe" }, "visibility": "internal" }, { "constant": true, "id": 4408, "name": "ERR_LOW_WORK", "nodeType": "VariableDeclaration", "scope": 5008, "src": "721:98:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4406, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "721:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "307866666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666664", "id": 4407, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "753:66:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_115792089237316195423570985008687907853269984665640564039457584007913129639933_by_1", "typeString": "int_const 1157...(70 digits omitted)...9933" }, "value": "0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd" }, "visibility": "internal" }, { "body": { "id": 4415, "nodeType": "Block", "src": "885:38:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4413, "name": "ERR_BAD_LENGTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4402, "src": "902:14:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4412, "id": 4414, "nodeType": "Return", "src": "895:21:8" } ] }, "documentation": null, "id": 4416, "implemented": true, "kind": "function", "modifiers": [], "name": "getErrBadLength", "nodeType": "FunctionDefinition", "parameters": { "id": 4409, "nodeType": "ParameterList", "parameters": [], "src": "850:2:8" }, "returnParameters": { "id": 4412, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4411, "name": "", "nodeType": "VariableDeclaration", "scope": 4416, "src": "876:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4410, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "876:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "875:9:8" }, "scope": 5008, "src": "826:97:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4423, "nodeType": "Block", "src": "991:41:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4421, "name": "ERR_INVALID_CHAIN", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4405, "src": "1008:17:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4420, "id": 4422, "nodeType": "Return", "src": "1001:24:8" } ] }, "documentation": null, "id": 4424, "implemented": true, "kind": "function", "modifiers": [], "name": "getErrInvalidChain", "nodeType": "FunctionDefinition", "parameters": { "id": 4417, "nodeType": "ParameterList", "parameters": [], "src": "956:2:8" }, "returnParameters": { "id": 4420, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4419, "name": "", "nodeType": "VariableDeclaration", "scope": 4424, "src": "982:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4418, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "982:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "981:9:8" }, "scope": 5008, "src": "929:103:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4431, "nodeType": "Block", "src": "1095:36:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4429, "name": "ERR_LOW_WORK", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4408, "src": "1112:12:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4428, "id": 4430, "nodeType": "Return", "src": "1105:19:8" } ] }, "documentation": null, "id": 4432, "implemented": true, "kind": "function", "modifiers": [], "name": "getErrLowWork", "nodeType": "FunctionDefinition", "parameters": { "id": 4425, "nodeType": "ParameterList", "parameters": [], "src": "1060:2:8" }, "returnParameters": { "id": 4428, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4427, "name": "", "nodeType": "VariableDeclaration", "scope": 4432, "src": "1086:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4426, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1086:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1085:9:8" }, "scope": 5008, "src": "1038:93:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4475, "nodeType": "Block", "src": "1751:363:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 4456, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 4451, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4447, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4445, "name": "_txid", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4434, "src": "1806:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 4446, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4436, "src": "1815:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "1806:20:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "&&", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4450, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4448, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4440, "src": "1830:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4449, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1840:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1830:11:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1806:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "&&", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4455, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4452, "name": "_intermediateNodes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4438, "src": "1845:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4453, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1845:25:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4454, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1874:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1845:30:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "1806:69:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4460, "nodeType": "IfStatement", "src": "1802:111:8", "trueBody": { "id": 4459, "nodeType": "Block", "src": "1877:36:8", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 4457, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "1898:4:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 4444, "id": 4458, "nodeType": "Return", "src": "1891:11:8" } ] } }, { "assignments": [ 4462 ], "declarations": [ { "constant": false, "id": 4462, "name": "_proof", "nodeType": "VariableDeclaration", "scope": 4475, "src": "1923:19:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4461, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1923:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "id": 4469, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4465, "name": "_txid", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4434, "src": "1962:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4466, "name": "_intermediateNodes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4438, "src": "1969:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4467, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4436, "src": "1989:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 4463, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "1945:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4464, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1945:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4468, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1945:56:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "VariableDeclarationStatement", "src": "1923:78:8" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4472, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4440, "src": "2100:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 4470, "name": "_proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4462, "src": "2073:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4471, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "verifyHash256Merkle", "nodeType": "MemberAccess", "referencedDeclaration": 4014, "src": "2073:26:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_bool_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (bool)" } }, "id": 4473, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2073:34:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 4444, "id": 4474, "nodeType": "Return", "src": "2066:41:8" } ] }, "documentation": "@notice Validates a tx inclusion in the block\n @param _txid The txid (LE)\n @param _merkleRoot The merkle root (as in the block header)\n @param _intermediateNodes The proof's intermediate nodes (digests between leaf and root)\n @param _index The leaf's index in the tree (0-indexed)\n @return true if fully valid, false otherwise", "id": 4476, "implemented": true, "kind": "function", "modifiers": [], "name": "prove", "nodeType": "FunctionDefinition", "parameters": { "id": 4441, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4434, "name": "_txid", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1611:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4433, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1611:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4436, "name": "_merkleRoot", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1634:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4435, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1634:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4438, "name": "_intermediateNodes", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1663:31:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4437, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1663:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4440, "name": "_index", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1704:11:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4439, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1704:4:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1601:120:8" }, "returnParameters": { "id": 4444, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4443, "name": "", "nodeType": "VariableDeclaration", "scope": 4476, "src": "1745:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4442, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1745:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1744:6:8" }, "scope": 5008, "src": "1587:527:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4499, "nodeType": "Block", "src": "2706:184:8", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4491, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4478, "src": "2840:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4492, "name": "_vin", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4480, "src": "2850:4:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4493, "name": "_vout", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4482, "src": "2856:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4494, "name": "_locktime", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4484, "src": "2863:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "id": 4489, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "2823:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4490, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2823:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4495, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2823:50:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4496, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "hash256", "nodeType": "MemberAccess", "referencedDeclaration": 2792, "src": "2823:58:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4497, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2823:60:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "functionReturnParameters": 4488, "id": 4498, "nodeType": "Return", "src": "2816:67:8" } ] }, "documentation": "@notice Hashes transaction to get txid\n @dev Supports Legacy and Witness\n @param _version 4-bytes version\n @param _vin Raw bytes length-prefixed input vector\n @param _vout Raw bytes length-prefixed output vector\n @ param _locktime 4-byte tx locktime\n @return 32-byte transaction id, little endian", "id": 4500, "implemented": true, "kind": "function", "modifiers": [], "name": "calculateTxId", "nodeType": "FunctionDefinition", "parameters": { "id": 4485, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4478, "name": "_version", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2559:21:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4477, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2559:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4480, "name": "_vin", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2590:17:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4479, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2590:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4482, "name": "_vout", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2617:18:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4481, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2617:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4484, "name": "_locktime", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2645:22:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4483, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2645:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "2549:124:8" }, "returnParameters": { "id": 4488, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4487, "name": "", "nodeType": "VariableDeclaration", "scope": 4500, "src": "2697:7:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4486, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "2697:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "2696:9:8" }, "scope": 5008, "src": "2527:363:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4590, "nodeType": "Block", "src": "3260:783:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4521, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3336", "id": 4515, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3405:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, "value": "36" }, { "argumentTypes": null, "hexValue": "31", "id": 4516, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3409:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "id": 4513, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3383:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4514, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "3383:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4517, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3383:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "00", "id": 4519, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3425:7:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_bc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a", "typeString": "literal_string \"\u0000\"" }, "value": "\u0000" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_bc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a", "typeString": "literal_string \"\u0000\"" } ], "id": 4518, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "3415:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4520, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3415:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3383:50:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4578, "nodeType": "Block", "src": "3824:120:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4569, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4565, "name": "_sequence", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4505, "src": "3838:9:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4566, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3850:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4567, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractSequenceWitness", "nodeType": "MemberAccess", "referencedDeclaration": 3120, "src": "3850:29:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4568, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3850:31:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "3838:43:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4570, "nodeType": "ExpressionStatement", "src": "3838:43:8" }, { "expression": { "argumentTypes": null, "id": 4576, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4571, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "3895:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4573, "name": "InputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4391, "src": "3914:10:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_InputTypes_$4391_$", "typeString": "type(enum ValidateSPV.InputTypes)" } }, "id": 4574, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "WITNESS", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3914:18:8", "typeDescriptions": { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } ], "id": 4572, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3908:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4575, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3908:25:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "3895:38:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4577, "nodeType": "ExpressionStatement", "src": "3895:38:8" } ] }, "id": 4579, "nodeType": "IfStatement", "src": "3379:565:8", "trueBody": { "id": 4564, "nodeType": "Block", "src": "3435:383:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4526, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4522, "name": "_sequence", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4505, "src": "3449:9:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4523, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3461:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4524, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractSequenceLegacy", "nodeType": "MemberAccess", "referencedDeclaration": 2989, "src": "3461:28:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4525, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3461:30:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "3449:42:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4527, "nodeType": "ExpressionStatement", "src": "3449:42:8" }, { "assignments": [ 4529 ], "declarations": [ { "constant": false, "id": 4529, "name": "_witnessTag", "nodeType": "VariableDeclaration", "scope": 4564, "src": "3505:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4528, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "3505:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4535, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3336", "id": 4532, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3549:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, "value": "36" }, { "argumentTypes": null, "hexValue": "33", "id": 4533, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3553:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_36_by_1", "typeString": "int_const 36" }, { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" } ], "expression": { "argumentTypes": null, "id": 4530, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3527:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4531, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "3527:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4534, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3527:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "3505:50:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 4546, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4540, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4536, "name": "_witnessTag", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4529, "src": "3574:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "220020", "id": 4538, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3599:11:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_33b5f6d42eef1e9e31f928375546beb5ccbc06516f549bb51f33536680ad4439", "typeString": "literal_string \"\"\u0000 \"" }, "value": "\"\u0000 " } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_33b5f6d42eef1e9e31f928375546beb5ccbc06516f549bb51f33536680ad4439", "typeString": "literal_string \"\"\u0000 \"" } ], "id": 4537, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "3589:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4539, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3589:22:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3574:37:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4545, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4541, "name": "_witnessTag", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4529, "src": "3615:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "160014", "id": 4543, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3640:11:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_bde11925feafe00f4d9d48ef4480be1ea68d808b9c557770a6133e20d41f44bf", "typeString": "literal_string \"\u0016\u0000\u0014\"" }, "value": "\u0016\u0000\u0014" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_bde11925feafe00f4d9d48ef4480be1ea68d808b9c557770a6133e20d41f44bf", "typeString": "literal_string \"\u0016\u0000\u0014\"" } ], "id": 4542, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "3630:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4544, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3630:22:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3615:37:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "3574:78:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4562, "nodeType": "Block", "src": "3737:70:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4560, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4555, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "3755:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4557, "name": "InputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4391, "src": "3774:10:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_InputTypes_$4391_$", "typeString": "type(enum ValidateSPV.InputTypes)" } }, "id": 4558, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "LEGACY", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3774:17:8", "typeDescriptions": { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } ], "id": 4556, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3768:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4559, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3768:24:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "3755:37:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4561, "nodeType": "ExpressionStatement", "src": "3755:37:8" } ] }, "id": 4563, "nodeType": "IfStatement", "src": "3570:237:8", "trueBody": { "id": 4554, "nodeType": "Block", "src": "3654:77:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4552, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4547, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "3672:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4549, "name": "InputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4391, "src": "3691:10:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_InputTypes_$4391_$", "typeString": "type(enum ValidateSPV.InputTypes)" } }, "id": 4550, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "COMPATIBILITY", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3691:24:8", "typeDescriptions": { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_InputTypes_$4391", "typeString": "enum ValidateSPV.InputTypes" } ], "id": 4548, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3685:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4551, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3685:31:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "3672:44:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4553, "nodeType": "ExpressionStatement", "src": "3672:44:8" } ] } } ] } }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4580, "name": "_sequence", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4505, "src": "3962:9:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4581, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "3973:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4582, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractInputTxId", "nodeType": "MemberAccess", "referencedDeclaration": 3177, "src": "3973:23:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4583, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3973:25:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4584, "name": "_input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4502, "src": "4000:6:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4585, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTxIndex", "nodeType": "MemberAccess", "referencedDeclaration": 3217, "src": "4000:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4586, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4000:23:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4587, "name": "_inputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4511, "src": "4025:10:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "id": 4588, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "3961:75:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_uint32_$_t_bytes32_$_t_uint32_$_t_uint8_$", "typeString": "tuple(uint32,bytes32,uint32,uint8)" } }, "functionReturnParameters": 4512, "id": 4589, "nodeType": "Return", "src": "3954:82:8" } ] }, "documentation": "@notice Parses a tx input from raw input bytes\n @dev Supports Legacy and Witness inputs\n @param _input Raw bytes tx input\n @return Tx input sequence number, tx hash, and index", "id": 4591, "implemented": true, "kind": "function", "modifiers": [], "name": "parseInput", "nodeType": "FunctionDefinition", "parameters": { "id": 4503, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4502, "name": "_input", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3150:19:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4501, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3150:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "3149:21:8" }, "returnParameters": { "id": 4512, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4505, "name": "_sequence", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3194:16:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4504, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "3194:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4507, "name": "_hash", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3212:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4506, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "3212:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4509, "name": "_index", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3227:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4508, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "3227:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4511, "name": "_inputType", "nodeType": "VariableDeclaration", "scope": 4591, "src": "3242:16:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 4510, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "3242:5:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" } ], "src": "3193:66:8" }, "scope": 5008, "src": "3130:913:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4742, "nodeType": "Block", "src": "4434:1241:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4606, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4602, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4596, "src": "4445:6:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4603, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4454:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4604, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractValue", "nodeType": "MemberAccess", "referencedDeclaration": 3382, "src": "4454:20:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint64_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint64)" } }, "id": 4605, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4454:22:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "src": "4445:31:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "id": 4607, "nodeType": "ExpressionStatement", "src": "4445:31:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4616, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "39", "id": 4610, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4514:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_9_by_1", "typeString": "int_const 9" }, "value": "9" }, { "argumentTypes": null, "hexValue": "31", "id": 4611, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4517:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_9_by_1", "typeString": "int_const 9" }, { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "id": 4608, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4491:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4609, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "4491:22:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4612, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4491:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "6a", "id": 4614, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4533:7:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b31d742db54d6961c6b346af2c9c4c495eb8aff2ebf6b3699e052d1cef5cf50b", "typeString": "literal_string \"j\"" }, "value": "j" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_b31d742db54d6961c6b346af2c9c4c495eb8aff2ebf6b3699e052d1cef5cf50b", "typeString": "literal_string \"j\"" } ], "id": 4613, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "4523:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4615, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4523:18:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4491:50:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4735, "nodeType": "Block", "src": "4695:925:8", "statements": [ { "assignments": [ 4632 ], "declarations": [ { "constant": false, "id": 4632, "name": "_prefixHash", "nodeType": "VariableDeclaration", "scope": 4735, "src": "4709:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4631, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "4709:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4638, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "38", "id": 4635, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4754:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, { "argumentTypes": null, "hexValue": "32", "id": 4636, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4757:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" } ], "expression": { "argumentTypes": null, "id": 4633, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4731:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4634, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "keccak256Slice", "nodeType": "MemberAccess", "referencedDeclaration": 4268, "src": "4731:22:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes32)" } }, "id": 4637, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4731:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "4709:50:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4643, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4639, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "4777:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "2200", "id": 4641, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4802:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b07fb0a3471486f9ccb02aab1d525df60d82925cb2d27860f923e655d76f35fc", "typeString": "literal_string \"\"\u0000\"" }, "value": "\"\u0000" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_b07fb0a3471486f9ccb02aab1d525df60d82925cb2d27860f923e655d76f35fc", "typeString": "literal_string \"\"\u0000\"" } ], "id": 4640, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "4792:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4642, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4792:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4777:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4664, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4660, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "4968:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "1600", "id": 4662, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4993:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ef68c1dfb3907c1a4ede55ac1ea785d8b99118a36999824e5ba557e25a67f448", "typeString": "literal_string \"\u0016\u0000\"" }, "value": "\u0016\u0000" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_ef68c1dfb3907c1a4ede55ac1ea785d8b99118a36999824e5ba557e25a67f448", "typeString": "literal_string \"\u0016\u0000\"" } ], "id": 4661, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "4983:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4663, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4983:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4968:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4685, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4681, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "5161:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "1976", "id": 4683, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "5186:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ad81b5075fc2fab784a78e7b78827a4218c83feb16873a545f008e5cd8266b6d", "typeString": "literal_string \"\u0019v\"" }, "value": "\u0019v" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_ad81b5075fc2fab784a78e7b78827a4218c83feb16873a545f008e5cd8266b6d", "typeString": "literal_string \"\u0019v\"" } ], "id": 4682, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "5176:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4684, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5176:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "5161:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4706, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4702, "name": "_prefixHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4632, "src": "5350:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "17a9", "id": 4704, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "5375:9:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_8c372bc872581e21a019e9c438c7646f8a6cf04e4c2acf7045e86bf2fabee118", "typeString": "literal_string (contains invalid UTF-8 sequence at position 1)" }, "value": null } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_8c372bc872581e21a019e9c438c7646f8a6cf04e4c2acf7045e86bf2fabee118", "typeString": "literal_string (contains invalid UTF-8 sequence at position 1)" } ], "id": 4703, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5017, "src": "5365:9:8", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4705, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5365:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "5350:35:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 4730, "nodeType": "Block", "src": "5533:77:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4728, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4723, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5551:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4725, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5571:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4726, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "NONSTANDARD", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5571:23:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4724, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5565:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4727, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5565:30:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5551:44:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4729, "nodeType": "ExpressionStatement", "src": "5551:44:8" } ] }, "id": 4731, "nodeType": "IfStatement", "src": "5346:264:8", "trueBody": { "id": 4722, "nodeType": "Block", "src": "5387:140:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4712, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4707, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5427:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4709, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5447:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4710, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "SH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5447:14:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4708, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5441:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4711, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5441:21:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5427:35:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4713, "nodeType": "ExpressionStatement", "src": "5427:35:8" }, { "expression": { "argumentTypes": null, "id": 4720, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4714, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5480:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3131", "id": 4717, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5505:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, "value": "11" }, { "argumentTypes": null, "hexValue": "3230", "id": 4718, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5509:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "expression": { "argumentTypes": null, "id": 4715, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "5491:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4716, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "5491:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4719, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5491:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "5480:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4721, "nodeType": "ExpressionStatement", "src": "5480:32:8" } ] } }, "id": 4732, "nodeType": "IfStatement", "src": "5157:453:8", "trueBody": { "id": 4701, "nodeType": "Block", "src": "5198:142:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4691, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4686, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5239:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4688, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5259:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4689, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "PKH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5259:15:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4687, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5253:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4690, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5253:22:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5239:36:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4692, "nodeType": "ExpressionStatement", "src": "5239:36:8" }, { "expression": { "argumentTypes": null, "id": 4699, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4693, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5293:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3132", "id": 4696, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5318:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_12_by_1", "typeString": "int_const 12" }, "value": "12" }, { "argumentTypes": null, "hexValue": "3230", "id": 4697, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5322:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_12_by_1", "typeString": "int_const 12" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "expression": { "argumentTypes": null, "id": 4694, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "5304:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4695, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "5304:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4698, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5304:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "5293:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4700, "nodeType": "ExpressionStatement", "src": "5293:32:8" } ] } }, "id": 4733, "nodeType": "IfStatement", "src": "4964:646:8", "trueBody": { "id": 4680, "nodeType": "Block", "src": "5005:146:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4670, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4665, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5049:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4667, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "5069:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4668, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "WPKH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5069:16:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4666, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5063:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4669, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5063:23:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "5049:37:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4671, "nodeType": "ExpressionStatement", "src": "5049:37:8" }, { "expression": { "argumentTypes": null, "id": 4678, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4672, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5104:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3131", "id": 4675, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5129:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, "value": "11" }, { "argumentTypes": null, "hexValue": "3230", "id": 4676, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5133:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "expression": { "argumentTypes": null, "id": 4673, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "5115:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4674, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "5115:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4677, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5115:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "5104:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4679, "nodeType": "ExpressionStatement", "src": "5104:32:8" } ] } }, "id": 4734, "nodeType": "IfStatement", "src": "4773:837:8", "trueBody": { "id": 4659, "nodeType": "Block", "src": "4814:144:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4649, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4644, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "4857:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4646, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "4877:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4647, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "WSH", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4877:15:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4645, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4871:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4648, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4871:22:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "4857:36:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4650, "nodeType": "ExpressionStatement", "src": "4857:36:8" }, { "expression": { "argumentTypes": null, "id": 4657, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4651, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "4911:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3131", "id": 4654, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4936:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, "value": "11" }, { "argumentTypes": null, "hexValue": "3332", "id": 4655, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4940:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_11_by_1", "typeString": "int_const 11" }, { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" } ], "expression": { "argumentTypes": null, "id": 4652, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4922:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4653, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "4922:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4922:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "4911:32:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4658, "nodeType": "ExpressionStatement", "src": "4911:32:8" } ] } } ] }, "id": 4736, "nodeType": "IfStatement", "src": "4487:1133:8", "trueBody": { "id": 4630, "nodeType": "Block", "src": "4543:146:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4622, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4617, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "4582:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4619, "name": "OutputTypes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4399, "src": "4602:11:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_enum$_OutputTypes_$4399_$", "typeString": "type(enum ValidateSPV.OutputTypes)" } }, "id": 4620, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "OP_RETURN", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4602:21:8", "typeDescriptions": { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_enum$_OutputTypes_$4399", "typeString": "enum ValidateSPV.OutputTypes" } ], "id": 4618, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4596:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": "uint8" }, "id": 4621, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4596:28:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "4582:42:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 4623, "nodeType": "ExpressionStatement", "src": "4582:42:8" }, { "expression": { "argumentTypes": null, "id": 4628, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4624, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "4638:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4625, "name": "_output", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4593, "src": "4649:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4626, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractOpReturnData", "nodeType": "MemberAccess", "referencedDeclaration": 3419, "src": "4649:27:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4627, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4649:29:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "4638:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4629, "nodeType": "ExpressionStatement", "src": "4638:40:8" } ] } }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4737, "name": "_value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4596, "src": "5638:6:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, { "argumentTypes": null, "id": 4738, "name": "_outputType", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4598, "src": "5646:11:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, { "argumentTypes": null, "id": 4739, "name": "_payload", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4600, "src": "5659:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "id": 4740, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "5637:31:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_uint64_$_t_uint8_$_t_bytes_memory_ptr_$", "typeString": "tuple(uint64,uint8,bytes memory)" } }, "functionReturnParameters": 4601, "id": 4741, "nodeType": "Return", "src": "5630:38:8" } ] }, "documentation": "@notice Parses a tx output from raw output bytes\n @dev Differentiates by output script prefix, handles legacy and witness\n @param _output Raw bytes tx output\n @return Tx output value, output type, payload", "id": 4743, "implemented": true, "kind": "function", "modifiers": [], "name": "parseOutput", "nodeType": "FunctionDefinition", "parameters": { "id": 4594, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4593, "name": "_output", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4332:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4592, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4332:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4331:22:8" }, "returnParameters": { "id": 4601, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4596, "name": "_value", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4377:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" }, "typeName": { "id": 4595, "name": "uint64", "nodeType": "ElementaryTypeName", "src": "4377:6:8", "typeDescriptions": { "typeIdentifier": "t_uint64", "typeString": "uint64" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4598, "name": "_outputType", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4392:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 4597, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "4392:5:8", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4600, "name": "_payload", "nodeType": "VariableDeclaration", "scope": 4743, "src": "4411:21:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4599, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4411:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4376:57:8" }, "scope": 5008, "src": "4311:1364:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4855, "nodeType": "Block", "src": "6207:764:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4765, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4762, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6281:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4763, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6281:14:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "3830", "id": 4764, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6299:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" }, "src": "6281:20:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4776, "nodeType": "IfStatement", "src": "6277:129:8", "trueBody": { "id": 4775, "nodeType": "Block", "src": "6303:103:8", "statements": [ { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4766, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4748, "src": "6324:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4767, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4750, "src": "6333:8:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4768, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4752, "src": "6343:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4769, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4754, "src": "6354:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4770, "name": "_timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4756, "src": "6367:10:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4771, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4758, "src": "6379:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4772, "name": "_nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4760, "src": "6388:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } } ], "id": 4773, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "6323:72:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$_t_uint32_$_t_uint256_$_t_uint32_$", "typeString": "tuple(bytes32,uint32,bytes32,bytes32,uint32,uint256,uint32)" } }, "functionReturnParameters": 4761, "id": 4774, "nodeType": "Return", "src": "6317:78:8" } ] } }, { "expression": { "argumentTypes": null, "id": 4788, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4777, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4748, "src": "6416:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4780, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6443:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4781, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "hash256", "nodeType": "MemberAccess", "referencedDeclaration": 2792, "src": "6443:15:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4782, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6443:17:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 4778, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "6426:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4779, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6426:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4783, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6426:35:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4784, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "6426:53:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4785, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6426:55:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4786, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "6426:65:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4787, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6426:67:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "6416:77:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4789, "nodeType": "ExpressionStatement", "src": "6416:77:8" }, { "expression": { "argumentTypes": null, "id": 4802, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4790, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4750, "src": "6503:8:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 4794, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6535:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, { "argumentTypes": null, "hexValue": "34", "id": 4795, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6538:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" } ], "expression": { "argumentTypes": null, "id": 4792, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6521:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4793, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "6521:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4796, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6521:19:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4797, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "6521:37:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4798, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6521:39:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4799, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "bytesToUint", "nodeType": "MemberAccess", "referencedDeclaration": 2726, "src": "6521:51:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4800, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6521:53:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4791, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6514:6:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint32_$", "typeString": "type(uint32)" }, "typeName": "uint32" }, "id": 4801, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6514:61:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "6503:72:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4803, "nodeType": "ExpressionStatement", "src": "6503:72:8" }, { "expression": { "argumentTypes": null, "id": 4810, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4804, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4752, "src": "6585:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4805, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6597:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4806, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractPrevBlockLE", "nodeType": "MemberAccess", "referencedDeclaration": 3804, "src": "6597:26:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4807, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6597:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4808, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "6597:38:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4809, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6597:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "6585:52:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4811, "nodeType": "ExpressionStatement", "src": "6585:52:8" }, { "expression": { "argumentTypes": null, "id": 4818, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4812, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4754, "src": "6647:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4813, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6661:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4814, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractMerkleRootLE", "nodeType": "MemberAccess", "referencedDeclaration": 3718, "src": "6661:27:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4815, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6661:29:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4816, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "6661:39:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4817, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6661:41:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "6647:55:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4819, "nodeType": "ExpressionStatement", "src": "6647:55:8" }, { "expression": { "argumentTypes": null, "id": 4824, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4820, "name": "_timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4756, "src": "6712:10:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4821, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6725:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4822, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTimestamp", "nodeType": "MemberAccess", "referencedDeclaration": 3850, "src": "6725:24:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint32)" } }, "id": 4823, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6725:26:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "6712:39:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4825, "nodeType": "ExpressionStatement", "src": "6712:39:8" }, { "expression": { "argumentTypes": null, "id": 4830, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4826, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4758, "src": "6761:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4827, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6771:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4828, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTarget", "nodeType": "MemberAccess", "referencedDeclaration": 3777, "src": "6771:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4829, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6771:23:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6761:33:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4831, "nodeType": "ExpressionStatement", "src": "6761:33:8" }, { "expression": { "argumentTypes": null, "id": 4844, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4832, "name": "_nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4760, "src": "6804:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "3736", "id": 4836, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6834:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_76_by_1", "typeString": "int_const 76" }, "value": "76" }, { "argumentTypes": null, "hexValue": "34", "id": 4837, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6838:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_76_by_1", "typeString": "int_const 76" }, { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" } ], "expression": { "argumentTypes": null, "id": 4834, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4745, "src": "6820:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4835, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "6820:13:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4838, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6820:20:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4839, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "6820:38:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4840, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6820:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4841, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "bytesToUint", "nodeType": "MemberAccess", "referencedDeclaration": 2726, "src": "6820:52:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4842, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6820:54:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4833, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6813:6:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint32_$", "typeString": "type(uint32)" }, "typeName": "uint32" }, "id": 4843, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6813:62:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "6804:71:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 4845, "nodeType": "ExpressionStatement", "src": "6804:71:8" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "id": 4846, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4748, "src": "6893:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4847, "name": "_version", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4750, "src": "6902:8:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4848, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4752, "src": "6912:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4849, "name": "_merkleRoot", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4754, "src": "6923:11:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 4850, "name": "_timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4756, "src": "6936:10:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, { "argumentTypes": null, "id": 4851, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4758, "src": "6948:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4852, "name": "_nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4760, "src": "6957:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } } ], "id": 4853, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "6892:72:8", "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bytes32_$_t_uint32_$_t_bytes32_$_t_bytes32_$_t_uint32_$_t_uint256_$_t_uint32_$", "typeString": "tuple(bytes32,uint32,bytes32,bytes32,uint32,uint256,uint32)" } }, "functionReturnParameters": 4761, "id": 4854, "nodeType": "Return", "src": "6886:78:8" } ] }, "documentation": "@notice Parses a block header struct from a bytestring\n @dev Block headers are always 80 bytes, see Bitcoin docs\n @return Header digest, version, previous block header hash, merkle root, timestamp, target, nonce", "id": 4856, "implemented": true, "kind": "function", "modifiers": [], "name": "parseHeader", "nodeType": "FunctionDefinition", "parameters": { "id": 4746, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4745, "name": "_header", "nodeType": "VariableDeclaration", "scope": 4856, "src": "5975:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4744, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "5975:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "5974:22:8" }, "returnParameters": { "id": 4761, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4748, "name": "_digest", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6029:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4747, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6029:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4750, "name": "_version", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6054:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4749, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "6054:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4752, "name": "_prevHash", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6079:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4751, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6079:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4754, "name": "_merkleRoot", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6106:19:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4753, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6106:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4756, "name": "_timestamp", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6135:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4755, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "6135:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4758, "name": "_target", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6162:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4757, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6162:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4760, "name": "_nonce", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6187:13:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 4759, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "6187:6:8", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "value": null, "visibility": "internal" } ], "src": "6019:187:8" }, "scope": 5008, "src": "5954:1017:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4948, "nodeType": "Block", "src": "7392:1071:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4868, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4866, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4863, "name": "_headers", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "7444:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4864, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7444:15:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "%", "rightExpression": { "argumentTypes": null, "hexValue": "3830", "id": 4865, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7462:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" }, "src": "7444:20:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4867, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7468:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7444:25:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4872, "nodeType": "IfStatement", "src": "7440:55:8", "trueBody": { "id": 4871, "nodeType": "Block", "src": "7471:24:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4869, "name": "ERR_BAD_LENGTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4402, "src": "7479:14:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4862, "id": 4870, "nodeType": "Return", "src": "7472:21:8" } ] } }, { "assignments": [ 4874 ], "declarations": [ { "constant": false, "id": 4874, "name": "_digest", "nodeType": "VariableDeclaration", "scope": 4948, "src": "7546:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4873, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "7546:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4875, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "7546:15:8" }, { "expression": { "argumentTypes": null, "id": 4878, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4876, "name": "_totalDifficulty", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4861, "src": "7572:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 4877, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7591:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7572:20:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4879, "nodeType": "ExpressionStatement", "src": "7572:20:8" }, { "body": { "id": 4946, "nodeType": "Block", "src": "7668:789:8", "statements": [ { "assignments": [ 4893 ], "declarations": [ { "constant": false, "id": 4893, "name": "_header", "nodeType": "VariableDeclaration", "scope": 4946, "src": "7736:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4892, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7736:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "id": 4899, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4896, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7774:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "3830", "id": 4897, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7782:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" } ], "expression": { "argumentTypes": null, "id": 4894, "name": "_headers", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "7759:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4895, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "slice", "nodeType": "MemberAccess", "referencedDeclaration": 4133, "src": "7759:14:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 4898, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7759:26:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "VariableDeclarationStatement", "src": "7736:49:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4902, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4900, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7877:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4901, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7887:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "7877:11:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4913, "nodeType": "IfStatement", "src": "7873:123:8", "trueBody": { "id": 4912, "nodeType": "Block", "src": "7890:106:8", "statements": [ { "condition": { "argumentTypes": null, "id": 4907, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "7912:41:8", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4904, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4893, "src": "7936:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4905, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4874, "src": "7945:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 4903, "name": "validateHeaderPrevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5007, "src": "7913:22:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_bytes32_$returns$_t_bool_$", "typeString": "function (bytes memory,bytes32) pure returns (bool)" } }, "id": 4906, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7913:40:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4911, "nodeType": "IfStatement", "src": "7908:74:8", "trueBody": { "id": 4910, "nodeType": "Block", "src": "7955:27:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4908, "name": "ERR_INVALID_CHAIN", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4405, "src": "7963:17:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4862, "id": 4909, "nodeType": "Return", "src": "7956:24:8" } ] } } ] } }, { "assignments": [ 4915 ], "declarations": [ { "constant": false, "id": 4915, "name": "_target", "nodeType": "VariableDeclaration", "scope": 4946, "src": "8043:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4914, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8043:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4919, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4916, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4893, "src": "8061:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4917, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractTarget", "nodeType": "MemberAccess", "referencedDeclaration": 3777, "src": "8061:21:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4918, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8061:23:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "8043:41:8" }, { "expression": { "argumentTypes": null, "id": 4924, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4920, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4874, "src": "8158:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4921, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4893, "src": "8168:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4922, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "hash256View", "nodeType": "MemberAccess", "referencedDeclaration": 2801, "src": "8168:19:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) view returns (bytes32)" } }, "id": 4923, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8168:21:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "8158:31:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4925, "nodeType": "ExpressionStatement", "src": "8158:31:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4932, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4927, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4874, "src": "8214:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 4926, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8206:7:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint256" }, "id": 4928, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8206:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4929, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseUint256", "nodeType": "MemberAccess", "referencedDeclaration": 2675, "src": "8206:31:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256) pure returns (uint256)" } }, "id": 4930, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8206:33:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "id": 4931, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4915, "src": "8242:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "8206:43:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4936, "nodeType": "IfStatement", "src": "8203:100:8", "trueBody": { "id": 4935, "nodeType": "Block", "src": "8251:52:8", "statements": [ { "expression": { "argumentTypes": null, "id": 4933, "name": "ERR_LOW_WORK", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4408, "src": "8276:12:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4862, "id": 4934, "nodeType": "Return", "src": "8269:19:8" } ] } }, { "expression": { "argumentTypes": null, "id": 4944, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4937, "name": "_totalDifficulty", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4861, "src": "8376:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4940, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4915, "src": "8416:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4941, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "calculateDifficulty", "nodeType": "MemberAccess", "referencedDeclaration": 3790, "src": "8416:27:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256) pure returns (uint256)" } }, "id": 4942, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8416:29:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 4938, "name": "_totalDifficulty", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4861, "src": "8395:16:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4939, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 4365, "src": "8395:20:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 4943, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8395:51:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "8376:70:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4945, "nodeType": "ExpressionStatement", "src": "8376:70:8" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4887, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4884, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7628:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4885, "name": "_headers", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "7637:8:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4886, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "7637:15:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7628:24:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 4947, "initializationExpression": { "assignments": [ 4881 ], "declarations": [ { "constant": false, "id": 4881, "name": "_start", "nodeType": "VariableDeclaration", "scope": 4947, "src": "7608:14:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4880, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7608:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4883, "initialValue": { "argumentTypes": null, "hexValue": "30", "id": 4882, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7625:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "7608:18:8" }, "loopExpression": { "expression": { "argumentTypes": null, "id": 4890, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4888, "name": "_start", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "7654:6:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3830", "id": 4889, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7664:2:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80_by_1", "typeString": "int_const 80" }, "value": "80" }, "src": "7654:12:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4891, "nodeType": "ExpressionStatement", "src": "7654:12:8" }, "nodeType": "ForStatement", "src": "7603:854:8" } ] }, "documentation": "@notice Checks validity of header chain\n @notice Compares the hash of each header to the prevHash in the next header\n @param _headers Raw byte array of header chain\n @return The total accumulated difficulty of the header chain, or an error code", "id": 4949, "implemented": true, "kind": "function", "modifiers": [], "name": "validateHeaderChain", "nodeType": "FunctionDefinition", "parameters": { "id": 4859, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4858, "name": "_headers", "nodeType": "VariableDeclaration", "scope": 4949, "src": "7320:21:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4857, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7320:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "7319:23:8" }, "returnParameters": { "id": 4862, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4861, "name": "_totalDifficulty", "nodeType": "VariableDeclaration", "scope": 4949, "src": "7366:24:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4860, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7366:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7365:26:8" }, "scope": 5008, "src": "7291:1172:8", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4979, "nodeType": "Block", "src": "8784:146:8", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4962, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4958, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4951, "src": "8798:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 4960, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8817:1:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 4959, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8809:7:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4961, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8809:10:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "8798:21:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4966, "nodeType": "IfStatement", "src": "8794:42:8", "trueBody": { "id": 4965, "nodeType": "Block", "src": "8821:15:8", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 4963, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "8829:5:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 4957, "id": 4964, "nodeType": "Return", "src": "8822:12:8" } ] } }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4976, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4969, "name": "_digest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4951, "src": "8870:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 4967, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5010, "src": "8853:3:8", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 4968, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8853:16:8", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 4970, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8853:25:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4971, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "reverseEndianness", "nodeType": "MemberAccess", "referencedDeclaration": 2579, "src": "8853:43:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4972, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8853:45:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4973, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "bytesToUint", "nodeType": "MemberAccess", "referencedDeclaration": 2726, "src": "8853:57:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (uint256)" } }, "id": 4974, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8853:59:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "id": 4975, "name": "_target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4953, "src": "8915:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "8853:69:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 4977, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "8852:71:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 4957, "id": 4978, "nodeType": "Return", "src": "8845:78:8" } ] }, "documentation": "@notice Checks validity of header work\n @param _digest Header digest\n @param _target The target threshold\n @return true if header work is valid, false otherwise", "id": 4980, "implemented": true, "kind": "function", "modifiers": [], "name": "validateHeaderWork", "nodeType": "FunctionDefinition", "parameters": { "id": 4954, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4951, "name": "_digest", "nodeType": "VariableDeclaration", "scope": 4980, "src": "8721:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4950, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "8721:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4953, "name": "_target", "nodeType": "VariableDeclaration", "scope": 4980, "src": "8738:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4952, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8738:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8720:34:8" }, "returnParameters": { "id": 4957, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4956, "name": "", "nodeType": "VariableDeclaration", "scope": 4980, "src": "8778:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4955, "name": "bool", "nodeType": "ElementaryTypeName", "src": "8778:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "8777:6:8" }, "scope": 5008, "src": "8693:237:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5006, "nodeType": "Block", "src": "9416:281:8", "statements": [ { "assignments": [ 4990 ], "declarations": [ { "constant": false, "id": 4990, "name": "_prevHash", "nodeType": "VariableDeclaration", "scope": 5006, "src": "9473:17:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4989, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "9473:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 4996, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4991, "name": "_header", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4982, "src": "9493:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4992, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "extractPrevBlockLE", "nodeType": "MemberAccess", "referencedDeclaration": 3804, "src": "9493:26:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes memory)" } }, "id": 4993, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9493:28:8", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4994, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "toBytes32", "nodeType": "MemberAccess", "referencedDeclaration": 4244, "src": "9493:38:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 4995, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9493:40:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "9473:60:8" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4999, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4997, "name": "_prevHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4990, "src": "9622:9:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "id": 4998, "name": "_prevHeaderDigest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4984, "src": "9635:17:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "9622:30:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5003, "nodeType": "IfStatement", "src": "9618:51:8", "trueBody": { "id": 5002, "nodeType": "Block", "src": "9654:15:8", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "66616c7365", "id": 5000, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "9662:5:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "functionReturnParameters": 4988, "id": 5001, "nodeType": "Return", "src": "9655:12:8" } ] } }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 5004, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "9686:4:8", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 4988, "id": 5005, "nodeType": "Return", "src": "9679:11:8" } ] }, "documentation": "@notice Checks validity of header chain\n @dev Compares current header prevHash to previous header's digest\n @param _header The raw bytes header\n @param _prevHeaderDigest The previous header's digest\n @return true if header chain is valid, false otherwise", "id": 5007, "implemented": true, "kind": "function", "modifiers": [], "name": "validateHeaderPrevHash", "nodeType": "FunctionDefinition", "parameters": { "id": 4985, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4982, "name": "_header", "nodeType": "VariableDeclaration", "scope": 5007, "src": "9338:20:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4981, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "9338:5:8", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4984, "name": "_prevHeaderDigest", "nodeType": "VariableDeclaration", "scope": 5007, "src": "9360:25:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4983, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "9360:7:8", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "9337:49:8" }, "returnParameters": { "id": 4988, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4987, "name": "", "nodeType": "VariableDeclaration", "scope": 5007, "src": "9410:4:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 4986, "name": "bool", "nodeType": "ElementaryTypeName", "src": "9410:4:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "9409:6:8" }, "scope": 5008, "src": "9306:391:8", "stateMutability": "pure", "superFunction": null, "visibility": "internal" } ], "scope": 5009, "src": "218:9481:8" } ], "src": "0:9700:8" }, "compiler": { "name": "solc", "version": "0.5.10+commit.5a6ea5b1.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.23", "updatedAt": "2020-04-08T00:07:28.202Z", "devdoc": { "methods": {} }, "userdoc": { "methods": {} } }