{ "abi": [], "allSourcePaths": { "24": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Strings.sol" }, "ast": { "absolutePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Strings.sol", "exportedSymbols": { "Strings": [ 23075 ] }, "id": 23076, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 22851, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "101:23:24" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 22852, "nodeType": "StructuredDocumentation", "src": "126:34:24", "text": " @dev String operations." }, "fullyImplemented": true, "id": 23075, "linearizedBaseContracts": [ 23075 ], "name": "Strings", "nameLocation": "169:7:24", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 22855, "mutability": "constant", "name": "_HEX_SYMBOLS", "nameLocation": 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22976, "nodeType": "Return", "src": "1489:33:24" } ] }, "documentation": { "id": 22938, "nodeType": "StructuredDocumentation", "src": "1101:94:24", "text": " @dev Converts a `uint256` to its ASCII `string` hexadecimal representation." }, "id": 22978, "implemented": true, "kind": "function", "modifiers": [], "name": "toHexString", "nameLocation": "1209:11:24", "nodeType": "FunctionDefinition", "parameters": { "id": 22941, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 22940, "mutability": "mutable", "name": "value", "nameLocation": "1229:5:24", "nodeType": "VariableDeclaration", "scope": 22978, "src": "1221:13:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 22939, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1221:7:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": 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"isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1821:3:24", "typeDescriptions": { "typeIdentifier": "t_stringliteral_044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116d", "typeString": "literal_string \"0\"" }, "value": "0" }, "src": "1809:15:24", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } }, "id": 23004, "nodeType": "ExpressionStatement", "src": "1809:15:24" }, { "expression": { "id": 23009, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 23005, "name": "buffer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 22989, "src": "1834:6:24", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 23007, "indexExpression": { "hexValue": "31", "id": 23006, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1841:1:24", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1834:9:24", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "hexValue": "78", "id": 23008, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1846:3:24", "typeDescriptions": { "typeIdentifier": "t_stringliteral_7521d1cadbcfa91eec65aa16715b94ffc1c9654ba57ea2ef1a2127bca1127a83", "typeString": "literal_string \"x\"" }, "value": "x" }, "src": "1834:15:24", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } }, "id": 23010, "nodeType": "ExpressionStatement", "src": "1834:15:24" }, { "body": { "id": 23039, "nodeType": "Block", "src": "1904:87:24", "statements": [ { "expression": { "id": 23033, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 23025, "name": "buffer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 22989, "src": "1918:6:24", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 23027, "indexExpression": { "id": 23026, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23012, "src": "1925:1:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1918:9:24", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "baseExpression": { "id": 23028, "name": "_HEX_SYMBOLS", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 22855, "src": "1930:12:24", "typeDescriptions": { "typeIdentifier": "t_bytes16", "typeString": "bytes16" } }, "id": 23032, "indexExpression": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 23031, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 23029, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 22981, "src": "1943:5:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "&", "rightExpression": { "hexValue": "307866", "id": 23030, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1951:3:24", "typeDescriptions": { "typeIdentifier": "t_rational_15_by_1", "typeString": "int_const 15" }, "value": "0xf" }, "src": "1943:11:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1930:25:24", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } }, "src": "1918:37:24", "typeDescriptions": { "typeIdentifier": "t_bytes1", "typeString": "bytes1" } }, "id": 23034, "nodeType": "ExpressionStatement", "src": "1918:37:24" }, { "expression": { "id": 23037, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 23035, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 22981, "src": "1969:5:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": ">>=", "rightHandSide": { "hexValue": "34", "id": 23036, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1979:1:24", "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "src": "1969:11:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 23038, "nodeType": "ExpressionStatement", "src": "1969:11:24" } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 23021, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 23019, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 23012, "src": "1892:1:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "hexValue": "31", "id": 23020, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1896:1:24", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1892:5:24", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 23040, "initializationExpression": { "assignments": [ 23012 ], "declarations": [ { "constant": false, "id": 23012, "mutability": "mutable", "name": "i", "nameLocation": "1872:1:24", "nodeType": "VariableDeclaration", "scope": 23040, "src": "1864:9:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 23011, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1864:7:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 23018, "initialValue": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 23017, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 23015, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "hexValue": "32", "id": 23013, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1876:1:24", "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "id": 23014, "name": "length", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 22983, "src": "1880:6:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1876:10:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "+", 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ADDRESS EQ PUSH1 0x80 PUSH1 0x40 MSTORE PUSH1 0x0 DUP1 REVERT INVALID LOG2 PUSH5 0x6970667358 0x22 SLT KECCAK256 0xB2 0xCD 0xD PUSH3 0x577C06 DIV 0x25 BLOCKHASH SHR KECCAK256 CALLDATACOPY BALANCE PUSH20 0xD505E4431DE94EF84968B2430F1E91EE7764736F PUSH13 0x63430008020033000000000000 ", "pcMap": { "0": { "offset": [ 161, 2396 ], "op": "PUSH20", "path": "24", "value": "0x0" }, "21": { "fn": null, "offset": [ 161, 2396 ], "op": "ADDRESS", "path": "24" }, "22": { "fn": null, "offset": [ 161, 2396 ], "op": "EQ", "path": "24" }, "23": { "fn": null, "offset": [ 161, 2396 ], "op": "PUSH1", "path": "24", "value": "0x80" }, "25": { "fn": null, "offset": [ 161, 2396 ], "op": "PUSH1", "path": "24", "value": "0x40" }, "27": { "fn": null, "offset": [ 161, 2396 ], "op": "MSTORE", "path": "24" }, "28": { "fn": null, "offset": [ 161, 2396 ], "op": "PUSH1", "path": "24", "value": "0x0" }, "30": { "fn": null, "offset": [ 161, 2396 ], "op": "DUP1", "path": "24" }, "31": { "fn": null, "offset": [ 161, 2396 ], "op": "REVERT", "path": "24" } }, "sha1": "64a06a9e23bae30c0bbeb4b6acb408ae54f6c379", "source": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n}\n", "sourceMap": "161:2235:24:-:0;;;;;;;;;;;;;;;-1:-1:-1;;;161:2235:24;;;;;;;;;;;;;;;;;", "sourcePath": "/home/vscode/.brownie/packages/OpenZeppelin/openzeppelin-contracts@4.7.3/contracts/utils/Strings.sol", "type": "library" }