{ "abi": [], "bytecode": { "object": "0x602d6023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000706000a", "sourceMap": "70:2479:37:-:0;;;;;;;;;;;;;;;;;;;;;;;;;", "linkReferences": {} }, "deployedBytecode": { "object": "0x73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000706000a", "sourceMap": "70:2479:37:-:0;;;;;;;;", "linkReferences": {} }, "methodIdentifiers": {}, "ast": { "absolutePath": "packages/contracts-bridge/contracts/Encoding.sol", "id": 31984, "exportedSymbols": { "Encoding": [ 31983 ] }, "nodeType": "SourceUnit", "src": "46:2504:37", "nodes": [ { "id": 31790, "nodeType": "PragmaDirective", "src": "46:22:37", "literals": [ "solidity", "0.7", ".6" ] }, { "id": 31983, "nodeType": "ContractDefinition", "src": "70:2479:37", "nodes": [ { "id": 31793, "nodeType": "VariableDeclaration", "src": "137:57:37", "constant": true, "mutability": "constant", "name": "NIBBLE_LOOKUP", "scope": 31983, "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 31791, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "137:5:37", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": { "hexValue": "30313233343536373839616263646566", "id": 31792, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "176:18:37", "typeDescriptions": { "typeIdentifier": "t_stringliteral_cb29997ed99ead0db59ce4d12b7d3723198c827273e5796737c926d78019c39f", "typeString": "literal_string \"0123456789abcdef\"" }, "value": "0123456789abcdef" }, "visibility": "private" }, { "id": 31840, "nodeType": "FunctionDefinition", "src": "489:390:37", "body": { "id": 31839, "nodeType": "Block", "src": "593:286:37", "statements": [ { "assignments": [ 31802 ], "declarations": [ { "constant": false, "id": 31802, "mutability": "mutable", "name": "ASCII_0", "nodeType": "VariableDeclaration", "scope": 31839, "src": "603:14:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" }, "typeName": { "id": 31801, "name": "uint80", "nodeType": "ElementaryTypeName", "src": "603:6:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } }, "visibility": "internal" } ], "id": 31804, "initialValue": { "hexValue": "30783330", "id": 31803, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "620:4:37", "typeDescriptions": { "typeIdentifier": "t_rational_48_by_1", "typeString": "int_const 48" }, "value": "0x30" }, "nodeType": "VariableDeclarationStatement", "src": "603:21:37" }, { "body": { "id": 31837, "nodeType": "Block", "src": "772:101:37", "statements": [ { "expression": { 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31821, "name": "ASCII_0", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31802, "src": "813:7:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } }, "src": "799:21:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } } ], "id": 31823, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "798:23:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } }, "nodeType": "BinaryOperation", "operator": "<<", "rightExpression": { "components": [ { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31826, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31824, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31806, "src": "826:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "hexValue": "38", "id": 31825, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "830:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "src": "826:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "id": 31827, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "825:7:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "798:34:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } }, "src": "786:46:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } }, "id": 31830, "nodeType": "ExpressionStatement", 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"kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "860:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "src": "853:9:37", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "src": "846:16:37", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "id": 31836, "nodeType": "ExpressionStatement", "src": "846:16:37" } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31811, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31809, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31806, "src": "756:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "hexValue": "3130", "id": 31810, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "760:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "src": "756:6:37", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 31838, "initializationExpression": { "assignments": [ 31806 ], "declarations": [ { "constant": false, "id": 31806, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "scope": 31838, "src": "743:7:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31805, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "743:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "id": 31808, "initialValue": { "hexValue": "30", "id": 31807, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "753:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "743:11:37" }, "loopExpression": { "expression": { "id": 31814, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31812, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31806, "src": "764:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "hexValue": "31", "id": 31813, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "769:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "764:6:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 31815, "nodeType": "ExpressionStatement", "src": "764:6:37" }, "nodeType": "ForStatement", "src": "738:135:37" } ] }, "documentation": { "id": 31794, "nodeType": "StructuredDocumentation", "src": "254:230:37", "text": " @notice Encode a uint32 in its DECIMAL representation, with leading\n zeroes.\n @param _num The number to encode\n @return _encoded The encoded number, suitable for use in abi.\n encodePacked" }, "implemented": true, "kind": "function", "modifiers": [], "name": "decimalUint32", "parameters": { "id": 31797, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31796, "mutability": "mutable", "name": "_num", "nodeType": "VariableDeclaration", "scope": 31840, "src": "512:11:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 31795, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "512:6:37", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "visibility": "internal" } ], "src": "511:13:37" }, "returnParameters": { "id": 31800, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31799, "mutability": "mutable", "name": "_encoded", "nodeType": "VariableDeclaration", "scope": 31840, "src": "572:15:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" }, "typeName": { "id": 31798, "name": "uint80", "nodeType": "ElementaryTypeName", "src": "572:6:37", "typeDescriptions": { "typeIdentifier": "t_uint80", "typeString": "uint80" } }, "visibility": "internal" } ], "src": "571:17:37" }, "scope": 31983, "stateMutability": "pure", "virtual": false, "visibility": "internal" }, { "id": 31931, "nodeType": "FunctionDefinition", "src": "1175:614:37", "body": { "id": 31930, "nodeType": "Block", "src": "1302:487:37", "statements": [ { "body": { "id": 31888, "nodeType": "Block", "src": "1347:176:37", "statements": [ { "assignments": [ 31862 ], "declarations": [ { "constant": false, "id": 31862, "mutability": "mutable", "name": "_b", "nodeType": "VariableDeclaration", "scope": 31888, "src": "1361:8:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31861, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1361:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "id": 31872, "initialValue": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 31870, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31865, "name": "_bytes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31843, "src": "1378:6:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">>", "rightExpression": { "components": [ { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31868, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31866, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31851, "src": "1389:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "hexValue": "38", "id": 31867, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1393:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "src": "1389:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "id": 31869, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "1388:7:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "1378:17:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 31864, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1372:5:37", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": { "id": 31863, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1372:5:37", "typeDescriptions": {} } }, "id": 31871, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1372:24:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "VariableDeclarationStatement", "src": "1361:35:37" }, { "expression": { "id": 31877, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31873, "name": "_firstHalf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31846, "src": "1410:10:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "|=", "rightHandSide": { "arguments": [ { "id": 31875, "name": "_b", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31862, "src": "1433:2:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint8", "typeString": "uint8" } ], "id": 31874, "name": "_byteHex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31982, "src": "1424:8:37", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint8_$returns$_t_uint16_$", "typeString": "function (uint8) pure returns (uint16)" } }, "id": 31876, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1424:12:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "src": "1410:26:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 31878, "nodeType": "ExpressionStatement", "src": "1410:26:37" }, { "condition": { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31881, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31879, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31851, "src": "1454:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "hexValue": "3136", "id": 31880, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1459:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_16_by_1", "typeString": "int_const 16" }, "value": "16" }, "src": "1454:7:37", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 31887, "nodeType": "IfStatement", "src": "1450:63:37", "trueBody": { "id": 31886, "nodeType": "Block", "src": "1463:50:37", "statements": [ { "expression": { "id": 31884, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31882, "name": "_firstHalf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31846, "src": "1481:10:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "<<=", "rightHandSide": { "hexValue": "3136", "id": 31883, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1496:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_16_by_1", "typeString": "int_const 16" }, "value": "16" }, "src": "1481:17:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 31885, "nodeType": "ExpressionStatement", "src": "1481:17:37" } ] } } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31856, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31854, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31851, "src": "1331:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "hexValue": "3135", "id": 31855, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1335:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_15_by_1", "typeString": "int_const 15" }, "value": "15" }, "src": "1331:6:37", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 31889, "initializationExpression": { "assignments": [ 31851 ], "declarations": [ { "constant": false, "id": 31851, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "scope": 31889, "src": "1317:7:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31850, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1317:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "id": 31853, "initialValue": { "hexValue": "3331", "id": 31852, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1327:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_31_by_1", "typeString": "int_const 31" }, "value": "31" }, "nodeType": "VariableDeclarationStatement", "src": "1317:12:37" }, "loopExpression": { "expression": { "id": 31859, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31857, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31851, "src": "1339:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "hexValue": "31", "id": 31858, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1344:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1339:6:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 31860, "nodeType": "ExpressionStatement", "src": "1339:6:37" }, "nodeType": "ForStatement", "src": "1312:211:37" }, { "body": { "id": 31928, "nodeType": "Block", "src": "1606:177:37", "statements": [ { "assignments": [ 31902 ], "declarations": [ { "constant": false, "id": 31902, "mutability": "mutable", "name": "_b", "nodeType": "VariableDeclaration", "scope": 31928, "src": "1620:8:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31901, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1620:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "id": 31912, "initialValue": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 31910, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31905, "name": "_bytes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31843, "src": "1637:6:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">>", "rightExpression": { "components": [ { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31908, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31906, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31891, "src": "1648:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "hexValue": "38", "id": 31907, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1652:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "src": "1648:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "id": 31909, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "1647:7:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "1637:17:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 31904, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1631:5:37", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": { "id": 31903, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1631:5:37", "typeDescriptions": {} } }, "id": 31911, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1631:24:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "VariableDeclarationStatement", "src": "1620:35:37" }, { "expression": { "id": 31917, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31913, "name": "_secondHalf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31848, "src": "1669:11:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "|=", "rightHandSide": { "arguments": [ { "id": 31915, "name": "_b", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31902, "src": "1693:2:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint8", "typeString": "uint8" } ], "id": 31914, "name": "_byteHex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31982, "src": "1684:8:37", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint8_$returns$_t_uint16_$", "typeString": "function (uint8) pure returns (uint16)" } }, "id": 31916, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1684:12:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "src": "1669:27:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 31918, "nodeType": "ExpressionStatement", "src": "1669:27:37" }, { "condition": { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31921, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31919, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31891, "src": "1714:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "hexValue": "30", "id": 31920, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1719:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1714:6:37", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 31927, "nodeType": "IfStatement", "src": "1710:63:37", "trueBody": { "id": 31926, "nodeType": "Block", "src": "1722:51:37", "statements": [ { "expression": { "id": 31924, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31922, "name": "_secondHalf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31848, "src": "1740:11:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "<<=", "rightHandSide": { "hexValue": "3136", "id": 31923, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1756:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_16_by_1", "typeString": "int_const 16" }, "value": "16" }, "src": "1740:18:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 31925, "nodeType": "ExpressionStatement", "src": "1740:18:37" } ] } } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31896, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31894, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31891, "src": "1589:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "hexValue": "323535", "id": 31895, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1593:3:37", "typeDescriptions": { "typeIdentifier": "t_rational_255_by_1", "typeString": "int_const 255" }, "value": "255" }, "src": "1589:7:37", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 31929, "initializationExpression": { "assignments": [ 31891 ], "declarations": [ { "constant": false, "id": 31891, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "scope": 31929, "src": "1575:7:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31890, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1575:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "id": 31893, "initialValue": { "hexValue": "3135", "id": 31892, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1585:2:37", "typeDescriptions": { "typeIdentifier": "t_rational_15_by_1", "typeString": "int_const 15" }, "value": "15" }, "nodeType": "VariableDeclarationStatement", "src": "1575:12:37" }, "loopExpression": { "expression": { "id": 31899, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31897, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31891, "src": "1598:1:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "hexValue": "31", "id": 31898, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1603:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1598:6:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 31900, "nodeType": "ExpressionStatement", "src": "1598:6:37" }, "nodeType": "ForStatement", "src": "1570:213:37" } ] }, "documentation": { "id": 31841, "nodeType": "StructuredDocumentation", "src": "885:285:37", "text": " @notice Encodes the uint256 to hex. `first` contains the encoded top 16 bytes.\n `second` contains the encoded lower 16 bytes.\n @param _bytes The 32 bytes as uint256\n @return _firstHalf The top 16 bytes\n @return _secondHalf The bottom 16 bytes" }, "implemented": true, "kind": "function", "modifiers": [], "name": "encodeHex", "parameters": { "id": 31844, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31843, "mutability": "mutable", "name": "_bytes", "nodeType": "VariableDeclaration", "scope": 31931, "src": "1194:14:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 31842, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1194:7:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1193:16:37" }, "returnParameters": { "id": 31849, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31846, "mutability": "mutable", "name": "_firstHalf", "nodeType": "VariableDeclaration", "scope": 31931, "src": "1257:18:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 31845, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1257:7:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 31848, "mutability": "mutable", "name": "_secondHalf", "nodeType": "VariableDeclaration", "scope": 31931, "src": "1277:19:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 31847, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1277:7:37", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1256:41:37" }, "scope": 31983, "stateMutability": "pure", "virtual": false, "visibility": "internal" }, { "id": 31955, "nodeType": "FunctionDefinition", "src": "1986:186:37", "body": { "id": 31954, "nodeType": "Block", "src": "2054:118:37", "statements": [ { "assignments": [ 31940 ], "declarations": [ { "constant": false, "id": 31940, "mutability": "mutable", "name": "_nibble", "nodeType": "VariableDeclaration", "scope": 31954, "src": "2064:13:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31939, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "2064:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "id": 31944, "initialValue": { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31943, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31941, "name": "_byte", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31934, "src": "2080:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": "&", "rightExpression": { "hexValue": "30783066", "id": 31942, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2088:4:37", "typeDescriptions": { "typeIdentifier": "t_rational_15_by_1", "typeString": "int_const 15" }, "value": "0x0f" }, "src": "2080:12:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "VariableDeclarationStatement", "src": "2064:28:37" }, { "expression": { "id": 31952, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31945, "name": "_char", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31937, "src": "2128:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "baseExpression": { "id": 31948, "name": "NIBBLE_LOOKUP", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31793, "src": "2142:13:37", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 31950, "indexExpression": { "id": 31949, "name": "_nibble", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31940, "src": "2156:7:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2142:22:37", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } ], "id": 31947, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2136:5:37", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint8_$", "typeString": "type(uint8)" }, "typeName": { "id": 31946, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "2136:5:37", "typeDescriptions": {} } }, "id": 31951, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2136:29:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "2128:37:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "id": 31953, "nodeType": "ExpressionStatement", "src": "2128:37:37" } ] }, "documentation": { "id": 31932, "nodeType": "StructuredDocumentation", "src": "1795:186:37", "text": " @notice Returns the encoded hex character that represents the lower 4 bits of the argument.\n @param _byte The byte\n @return _char The encoded hex character" }, "implemented": true, "kind": "function", "modifiers": [], "name": "_nibbleHex", "parameters": { "id": 31935, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31934, "mutability": "mutable", "name": "_byte", "nodeType": "VariableDeclaration", "scope": 31955, "src": "2006:11:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31933, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "2006:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "src": "2005:13:37" }, "returnParameters": { "id": 31938, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31937, "mutability": "mutable", "name": "_char", "nodeType": "VariableDeclaration", "scope": 31955, "src": "2041:11:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31936, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "2041:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "src": "2040:13:37" }, "scope": 31983, "stateMutability": "pure", "virtual": false, "visibility": "private" }, { "id": 31982, "nodeType": "FunctionDefinition", "src": "2333:214:37", "body": { "id": 31981, "nodeType": "Block", "src": "2403:144:37", "statements": [ { "expression": { "id": 31969, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31963, "name": "_encoded", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31961, "src": "2413:8:37", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "nodeType": "Assignment", "operator": "|=", "rightHandSide": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "id": 31967, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 31965, "name": "_byte", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31958, "src": "2436:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "BinaryOperation", "operator": ">>", "rightExpression": { "hexValue": "34", "id": 31966, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2445:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "src": "2436:10:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint8", "typeString": "uint8" } ], "id": 31964, "name": "_nibbleHex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31955, "src": "2425:10:37", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint8_$returns$_t_uint8_$", "typeString": "function (uint8) pure returns (uint8)" } }, "id": 31968, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2425:22:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "2413:34:37", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "id": 31970, "nodeType": "ExpressionStatement", "src": "2413:34:37" }, { "expression": { "id": 31973, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31971, "name": "_encoded", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31961, "src": "2471:8:37", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "nodeType": "Assignment", "operator": "<<=", "rightHandSide": { "hexValue": "38", "id": 31972, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2484:1:37", "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "src": "2471:14:37", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "id": 31974, "nodeType": "ExpressionStatement", "src": "2471:14:37" }, { "expression": { "id": 31979, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 31975, "name": "_encoded", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31961, "src": "2495:8:37", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "nodeType": "Assignment", "operator": "|=", "rightHandSide": { "arguments": [ { "id": 31977, "name": "_byte", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31958, "src": "2518:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint8", "typeString": "uint8" } ], "id": 31976, "name": "_nibbleHex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 31955, "src": "2507:10:37", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint8_$returns$_t_uint8_$", "typeString": "function (uint8) pure returns (uint8)" } }, "id": 31978, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2507:17:37", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "src": "2495:29:37", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "id": 31980, "nodeType": "ExpressionStatement", "src": "2495:29:37" } ] }, "documentation": { "id": 31956, "nodeType": "StructuredDocumentation", "src": "2178:150:37", "text": " @notice Returns a uint16 containing the hex-encoded byte.\n @param _byte The byte\n @return _encoded The hex-encoded byte" }, "implemented": true, "kind": "function", "modifiers": [], "name": "_byteHex", "parameters": { "id": 31959, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 31958, "mutability": "mutable", "name": "_byte", "nodeType": "VariableDeclaration", "scope": 31982, "src": "2351:11:37", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 31957, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "2351:5:37", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "visibility": "internal" } ], "src": "2350:13:37" }, "returnParameters": { 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