{ "contractName": "Buffer", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.5.8+commit.23d335f2\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"details\":\"A library for working with mutable byte buffers in Solidity. * Byte buffers are mutable and expandable, and provide a variety of primitives for writing to them. At any time you can fetch a bytes object containing the current contents of the buffer. The bytes object should not be stored between operations, as it may change due to resizing of the buffer.\",\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"@ensdomains/buffer/contracts/Buffer.sol\":\"Buffer\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@ensdomains/buffer/contracts/Buffer.sol\":{\"keccak256\":\"0x1264adbd06f6e05b04539bb225063a988b7fa90343d068de60cdde6cfb6fa92d\",\"urls\":[\"bzzr://8f1cb39e242b73bb7fac1f48bf0380ccccad14f06aae9cf4f87329cc78186122\"]}},\"version\":1}", "bytecode": "0x604c6023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a72305820d9bf989cef3ee27766e4a228ac26960245aa7cc6dda309c2c6a6e6bcfa67d6580029", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea165627a7a72305820d9bf989cef3ee27766e4a228ac26960245aa7cc6dda309c2c6a6e6bcfa67d6580029", "sourceMap": "403:10156:21:-;;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": "403:10156:21:-;;;;;;;;", "source": "pragma solidity >0.4.18;\n\n/**\n* @dev A library for working with mutable byte buffers in Solidity.\n*\n* Byte buffers are mutable and expandable, and provide a variety of primitives\n* for writing to them. At any time you can fetch a bytes object containing the\n* current contents of the buffer. The bytes object should not be stored between\n* operations, as it may change due to resizing of the buffer.\n*/\nlibrary Buffer {\n /**\n * @dev Represents a mutable buffer. Buffers have a current value (buf) and\n * a capacity. The capacity may be longer than the current value, in\n * which case it can be extended without the need to allocate more memory.\n */\n struct buffer {\n bytes buf;\n uint capacity;\n }\n\n /**\n * @dev Initializes a buffer with an initial capacity.\n * @param buf The buffer to initialize.\n * @param capacity The number of bytes of space to allocate the buffer.\n * @return The buffer, for chaining.\n */\n function init(buffer memory buf, uint capacity) internal pure returns(buffer memory) {\n if (capacity % 32 != 0) {\n capacity += 32 - (capacity % 32);\n }\n // Allocate space for the buffer data\n buf.capacity = capacity;\n assembly {\n let ptr := mload(0x40)\n mstore(buf, ptr)\n mstore(ptr, 0)\n mstore(0x40, add(32, add(ptr, capacity)))\n }\n return buf;\n }\n\n /**\n * @dev Initializes a new buffer from an existing bytes object.\n * Changes to the buffer may mutate the original value.\n * @param b The bytes object to initialize the buffer with.\n * @return A new buffer.\n */\n function fromBytes(bytes memory b) internal pure returns(buffer memory) {\n buffer memory buf;\n buf.buf = b;\n buf.capacity = b.length;\n return buf;\n }\n\n function resize(buffer memory buf, uint capacity) private pure {\n bytes memory oldbuf = buf.buf;\n init(buf, capacity);\n append(buf, oldbuf);\n }\n\n function max(uint a, uint b) private pure returns(uint) {\n if (a > b) {\n return a;\n }\n return b;\n }\n\n /**\n * @dev Sets buffer length to 0.\n * @param buf The buffer to truncate.\n * @return The original buffer, for chaining..\n */\n function truncate(buffer memory buf) internal pure returns (buffer memory) {\n assembly {\n let bufptr := mload(buf)\n mstore(bufptr, 0)\n }\n return buf;\n }\n\n /**\n * @dev Writes a byte string to a buffer. Resizes if doing so would exceed\n * the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param off The start offset to write to.\n * @param data The data to append.\n * @param len The number of bytes to copy.\n * @return The original buffer, for chaining.\n */\n function write(buffer memory buf, uint off, bytes memory data, uint len) internal pure returns(buffer memory) {\n require(len <= data.length);\n\n if (off + len > buf.capacity) {\n resize(buf, max(buf.capacity, len + off) * 2);\n }\n\n uint dest;\n uint src;\n assembly {\n // Memory address of the buffer data\n let bufptr := mload(buf)\n // Length of existing buffer data\n let buflen := mload(bufptr)\n // Start address = buffer address + offset + sizeof(buffer length)\n dest := add(add(bufptr, 32), off)\n // Update buffer length if we're extending it\n if gt(add(len, off), buflen) {\n mstore(bufptr, add(len, off))\n }\n src := add(data, 32)\n }\n\n // Copy word-length chunks while possible\n for (; len >= 32; len -= 32) {\n assembly {\n mstore(dest, mload(src))\n }\n dest += 32;\n src += 32;\n }\n\n // Copy remaining bytes\n uint mask = 256 ** (32 - len) - 1;\n assembly {\n let srcpart := and(mload(src), not(mask))\n let destpart := and(mload(dest), mask)\n mstore(dest, or(destpart, srcpart))\n }\n\n return buf;\n }\n\n /**\n * @dev Appends a byte string to a buffer. Resizes if doing so would exceed\n * the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param data The data to append.\n * @param len The number of bytes to copy.\n * @return The original buffer, for chaining.\n */\n function append(buffer memory buf, bytes memory data, uint len) internal pure returns (buffer memory) {\n return write(buf, buf.buf.length, data, len);\n }\n\n /**\n * @dev Appends a byte string to a buffer. Resizes if doing so would exceed\n * the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param data The data to append.\n * @return The original buffer, for chaining.\n */\n function append(buffer memory buf, bytes memory data) internal pure returns (buffer memory) {\n return write(buf, buf.buf.length, data, data.length);\n }\n\n /**\n * @dev Writes a byte to the buffer. Resizes if doing so would exceed the\n * capacity of the buffer.\n * @param buf The buffer to append to.\n * @param off The offset to write the byte at.\n * @param data The data to append.\n * @return The original buffer, for chaining.\n */\n function writeUint8(buffer memory buf, uint off, uint8 data) internal pure returns(buffer memory) {\n if (off >= buf.capacity) {\n resize(buf, buf.capacity * 2);\n }\n\n assembly {\n // Memory address of the buffer data\n let bufptr := mload(buf)\n // Length of existing buffer data\n let buflen := mload(bufptr)\n // Address = buffer address + sizeof(buffer length) + off\n let dest := add(add(bufptr, off), 32)\n mstore8(dest, data)\n // Update buffer length if we extended it\n if eq(off, buflen) {\n mstore(bufptr, add(buflen, 1))\n }\n }\n return buf;\n }\n\n /**\n * @dev Appends a byte to the buffer. Resizes if doing so would exceed the\n * capacity of the buffer.\n * @param buf The buffer to append to.\n * @param data The data to append.\n * @return The original buffer, for chaining.\n */\n function appendUint8(buffer memory buf, uint8 data) internal pure returns(buffer memory) {\n return writeUint8(buf, buf.buf.length, data);\n }\n\n /**\n * @dev Writes up to 32 bytes to the buffer. Resizes if doing so would\n * exceed the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param off The offset to write at.\n * @param data The data to append.\n * @param len The number of bytes to write (left-aligned).\n * @return The original buffer, for chaining.\n */\n function write(buffer memory buf, uint off, bytes32 data, uint len) private pure returns(buffer memory) {\n if (len + off > buf.capacity) {\n resize(buf, (len + off) * 2);\n }\n\n uint mask = 256 ** len - 1;\n // Right-align data\n data = data >> (8 * (32 - len));\n assembly {\n // Memory address of the buffer data\n let bufptr := mload(buf)\n // Address = buffer address + sizeof(buffer length) + off + len\n let dest := add(add(bufptr, off), len)\n mstore(dest, or(and(mload(dest), not(mask)), data))\n // Update buffer length if we extended it\n if gt(add(off, len), mload(bufptr)) {\n mstore(bufptr, add(off, len))\n }\n }\n return buf;\n }\n\n /**\n * @dev Writes a bytes20 to the buffer. Resizes if doing so would exceed the\n * capacity of the buffer.\n * @param buf The buffer to append to.\n * @param off The offset to write at.\n * @param data The data to append.\n * @return The original buffer, for chaining.\n */\n function writeBytes20(buffer memory buf, uint off, bytes20 data) internal pure returns (buffer memory) {\n return write(buf, off, bytes32(data), 20);\n }\n\n /**\n * @dev Appends a bytes20 to the buffer. Resizes if doing so would exceed\n * the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param data The data to append.\n * @return The original buffer, for chhaining.\n */\n function appendBytes20(buffer memory buf, bytes20 data) internal pure returns (buffer memory) {\n return write(buf, buf.buf.length, bytes32(data), 20);\n }\n\n /**\n * @dev Appends a bytes32 to the buffer. Resizes if doing so would exceed\n * the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param data The data to append.\n * @return The original buffer, for chaining.\n */\n function appendBytes32(buffer memory buf, bytes32 data) internal pure returns (buffer memory) {\n return write(buf, buf.buf.length, data, 32);\n }\n\n /**\n * @dev Writes an integer to the buffer. Resizes if doing so would exceed\n * the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param off The offset to write at.\n * @param data The data to append.\n * @param len The number of bytes to write (right-aligned).\n * @return The original buffer, for chaining.\n */\n function writeInt(buffer memory buf, uint off, uint data, uint len) private pure returns(buffer memory) {\n if (len + off > buf.capacity) {\n resize(buf, (len + off) * 2);\n }\n\n uint mask = 256 ** len - 1;\n assembly {\n // Memory address of the buffer data\n let bufptr := mload(buf)\n // Address = buffer address + off + sizeof(buffer length) + len\n let dest := add(add(bufptr, off), len)\n mstore(dest, or(and(mload(dest), not(mask)), data))\n // Update buffer length if we extended it\n if gt(add(off, len), mload(bufptr)) {\n mstore(bufptr, add(off, len))\n }\n }\n return buf;\n }\n\n /**\n * @dev Appends a byte to the end of the buffer. Resizes if doing so would\n * exceed the capacity of the buffer.\n * @param buf The buffer to append to.\n * @param data The data to append.\n * @return The original buffer.\n */\n function appendInt(buffer memory buf, uint data, uint len) internal pure returns(buffer memory) {\n return writeInt(buf, buf.buf.length, data, len);\n }\n}\n", "sourcePath": "@ensdomains/buffer/contracts/Buffer.sol", "ast": { "absolutePath": "@ensdomains/buffer/contracts/Buffer.sol", "exportedSymbols": { "Buffer": [ 4982 ] }, "id": 4983, "nodeType": "SourceUnit", "nodes": [ { "id": 4513, "literals": [ "solidity", ">", "0.4", ".18" ], "nodeType": "PragmaDirective", "src": "0:24:21" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@dev A library for working with mutable byte buffers in Solidity.\n* Byte buffers are mutable and expandable, and provide a variety of primitives\nfor writing to them. At any time you can fetch a bytes object containing the\ncurrent contents of the buffer. 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4547, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4543, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4520, "src": "1209:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4545, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "capacity", "nodeType": "MemberAccess", "referencedDeclaration": 4517, "src": "1209:12:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 4546, "name": "capacity", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4522, "src": "1224:8:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": 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"expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4658, "name": "resize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4602, "src": "3077:6:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$returns$__$", "typeString": "function (struct Buffer.buffer memory,uint256) pure" } }, "id": 4669, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3077:45:21", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 4670, "nodeType": "ExpressionStatement", "src": "3077:45:21" } ] } }, { "assignments": [ 4674 ], "declarations": [ { "constant": false, "id": 4674, "name": "dest", "nodeType": "VariableDeclaration", "scope": 4712, "src": "3143:9:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4673, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3143:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4675, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "3143:9:21" }, { "assignments": [ 4677 ], "declarations": [ { "constant": false, "id": 4677, "name": "src", "nodeType": "VariableDeclaration", "scope": 4712, "src": "3162:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4676, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3162:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4678, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "3162:8:21" }, { "externalReferences": [ { "buf": { "declaration": 4634, "isOffset": false, "isSlot": false, "src": "3272:3:21", "valueSize": 1 } }, { "dest": { "declaration": 4674, "isOffset": false, "isSlot": false, "src": "3454:4:21", "valueSize": 1 } }, { "len": { "declaration": 4640, "isOffset": false, "isSlot": false, "src": "3568:3:21", "valueSize": 1 } }, { "off": { "declaration": 4636, "isOffset": false, "isSlot": false, "src": "3573:3:21", "valueSize": 1 } }, { "off": { "declaration": 4636, "isOffset": false, "isSlot": false, "src": "3483:3:21", "valueSize": 1 } }, { "src": { "declaration": 4677, "isOffset": false, "isSlot": false, "src": "3661:3:21", "valueSize": 1 } }, { "len": { "declaration": 4640, "isOffset": false, "isSlot": false, "src": "3624:3:21", "valueSize": 1 } }, { "off": { "declaration": 4636, "isOffset": false, "isSlot": false, "src": "3629:3:21", "valueSize": 1 } }, { "data": { "declaration": 4638, "isOffset": false, "isSlot": false, "src": "3672:4:21", "valueSize": 1 } } ], "id": 4679, "nodeType": "InlineAssembly", "operations": "{\n let bufptr := mload(buf)\n let buflen := mload(bufptr)\n dest := add(add(bufptr, 32), off)\n if gt(add(len, off), buflen)\n {\n mstore(bufptr, add(len, off))\n }\n src := add(data, 32)\n}", "src": "3180:511:21" }, { "body": { "id": 4696, "nodeType": "Block", "src": "3780:136:21", "statements": [ { "externalReferences": [ { "src": { "declaration": 4677, "isOffset": false, "isSlot": false, "src": "3840:3:21", "valueSize": 1 } }, { "dest": { "declaration": 4674, "isOffset": false, "isSlot": false, "src": "3828:4:21", "valueSize": 1 } } ], "id": 4687, "nodeType": "InlineAssembly", "operations": "{\n mstore(dest, mload(src))\n}", "src": "3794:65:21" }, { "expression": { "argumentTypes": null, "id": 4690, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, 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null, "id": 4692, "name": "src", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4677, "src": "3896:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4693, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3903:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3896:9:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4695, "nodeType": "ExpressionStatement", "src": "3896:9:21" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4682, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4680, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4640, "src": "3758:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4681, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3765:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3758:9:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 4697, "initializationExpression": null, "loopExpression": { "expression": { "argumentTypes": null, "id": 4685, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4683, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4640, "src": "3769:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4684, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3776:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3769:9:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4686, "nodeType": "ExpressionStatement", "src": "3769:9:21" }, "nodeType": "ForStatement", "src": "3751:165:21" }, { "assignments": [ 4699 ], "declarations": [ { "constant": false, "id": 4699, "name": "mask", "nodeType": "VariableDeclaration", "scope": 4712, "src": "3958:9:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4698, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3958:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4708, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4707, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4705, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "323536", "id": 4700, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3970:3:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4703, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4701, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3978:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4702, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4640, "src": "3983:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3978:8:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4704, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "3977:10:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3970:17:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4706, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3990:1:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "3970:21:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3958:33:21" }, { "externalReferences": [ { "src": { "declaration": 4677, "isOffset": false, "isSlot": false, "src": "4049:3:21", "valueSize": 1 } }, { "mask": { "declaration": 4699, "isOffset": false, "isSlot": false, "src": "4059:4:21", "valueSize": 1 } }, { "dest": { "declaration": 4674, "isOffset": false, "isSlot": false, "src": "4104:4:21", "valueSize": 1 } }, { "mask": { "declaration": 4699, "isOffset": false, "isSlot": false, "src": "4111:4:21", "valueSize": 1 } }, { "dest": { "declaration": 4674, "isOffset": false, "isSlot": false, "src": "4136:4:21", "valueSize": 1 } } ], "id": 4709, "nodeType": "InlineAssembly", "operations": "{\n let srcpart := and(mload(src), not(mask))\n let destpart := and(mload(dest), mask)\n mstore(dest, or(destpart, srcpart))\n}", "src": "4001:173:21" }, { "expression": { "argumentTypes": null, "id": 4710, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4634, "src": "4191:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4644, "id": 4711, "nodeType": "Return", "src": "4184:10:21" } ] }, "documentation": "@dev Writes a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The start offset to write to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4713, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4641, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4634, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2890:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4633, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "2890:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4636, "name": "off", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2909:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4635, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2909:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4638, "name": "data", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2919:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4637, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2919:5:21", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4640, "name": "len", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2938:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4639, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2938:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2889:58:21" }, "returnParameters": { "id": 4644, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4643, "name": "", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2970:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4642, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "2970:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "2969:15:21" }, "scope": 4982, "src": "2875:1326:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4733, "nodeType": "Block", "src": "4617:61:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4725, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4715, "src": "4640:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4726, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4715, "src": "4645:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4727, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "4645:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4728, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4645:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4729, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4717, "src": "4661:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4730, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4719, "src": "4667:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4724, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4713, "src": "4634:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes memory,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4731, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4634:37:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4723, "id": 4732, "nodeType": "Return", "src": "4627:44:21" } ] }, "documentation": "@dev Appends a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4734, "implemented": true, "kind": "function", "modifiers": [], "name": "append", "nodeType": "FunctionDefinition", "parameters": { "id": 4720, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4715, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4734, "src": "4531:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4714, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "4531:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, 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"lValueRequested": false, "nodeType": "TupleExpression", "src": "7090:11:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "hexValue": "32", "id": 4826, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7104:1:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "src": "7090:15:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4820, "name": "resize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4602, "src": "7078:6:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$returns$__$", "typeString": "function (struct Buffer.buffer memory,uint256) pure" } }, "id": 4828, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7078:28:21", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 4829, "nodeType": "ExpressionStatement", "src": "7078:28:21" } ] } }, { "assignments": [ 4833 ], "declarations": [ { "constant": false, "id": 4833, "name": "mask", "nodeType": "VariableDeclaration", "scope": 4855, "src": "7127:9:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4832, "name": "uint", "nodeType": "ElementaryTypeName", "src": "7127:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4839, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4838, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4836, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "323536", "id": 4834, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7139:3:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "id": 4835, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4809, "src": "7146:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7139:10:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4837, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7152:1:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "7139:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "7127:26:21" }, { "expression": { "argumentTypes": null, "id": 4850, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4840, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4807, "src": "7191:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4849, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4841, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4807, "src": "7198:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": ">>", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4847, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "38", "id": 4842, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7207:1:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4845, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4843, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7212:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4844, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4809, "src": "7217:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7212:8:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4846, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7211:10:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7207:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4848, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7206:16:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7198:24:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "7191:31:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4851, "nodeType": "ExpressionStatement", "src": "7191:31:21" }, { "externalReferences": [ { "buf": { "declaration": 4803, "isOffset": false, "isSlot": false, "src": "7324:3:21", "valueSize": 1 } }, { "mask": { "declaration": 4833, "isOffset": false, "isSlot": false, "src": "7505:4:21", "valueSize": 1 } }, { "off": { "declaration": 4805, "isOffset": false, "isSlot": false, "src": "7445:3:21", "valueSize": 1 } }, { "len": { "declaration": 4809, "isOffset": false, "isSlot": false, "src": "7451:3:21", "valueSize": 1 } }, { "off": { "declaration": 4805, "isOffset": false, "isSlot": false, "src": "7596:3:21", "valueSize": 1 } }, { "len": { "declaration": 4809, "isOffset": false, "isSlot": false, "src": "7601:3:21", "valueSize": 1 } }, { "data": { "declaration": 4807, "isOffset": false, "isSlot": false, "src": "7513:4:21", "valueSize": 1 } }, { "off": { "declaration": 4805, "isOffset": false, "isSlot": false, "src": "7659:3:21", "valueSize": 1 } }, { "len": { "declaration": 4809, "isOffset": false, "isSlot": false, "src": "7664:3:21", "valueSize": 1 } } ], "id": 4852, "nodeType": "InlineAssembly", "operations": "{\n let bufptr := mload(buf)\n let dest := add(add(bufptr, off), len)\n mstore(dest, or(and(mload(dest), not(mask)), data))\n if gt(add(off, len), mload(bufptr))\n {\n mstore(bufptr, add(off, len))\n }\n}", "src": "7232:461:21" }, { "expression": { "argumentTypes": null, "id": 4853, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4803, "src": "7709:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4813, "id": 4854, "nodeType": "Return", "src": "7702:10:21" } ] }, "documentation": "@dev Writes up to 32 bytes to the buffer. Resizes if doing so would\n exceed the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@param len The number of bytes to write (left-aligned).\n@return The original buffer, for chaining.", "id": 4856, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4810, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4803, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6935:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4802, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "6935:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4805, "name": "off", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6954:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4804, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6954:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4807, "name": "data", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6964:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4806, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6964:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4809, "name": "len", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6978:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4808, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6978:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6934:53:21" }, "returnParameters": { "id": 4813, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4812, "name": "", "nodeType": "VariableDeclaration", "scope": 4856, "src": "7009:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4811, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "7009:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "7008:15:21" }, "scope": 4982, "src": "6920:799:21", "stateMutability": "pure", "superFunction": null, "visibility": "private" }, { "body": { "id": 4876, "nodeType": "Block", "src": "8128:58:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4868, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "8151:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "id": 4869, "name": "off", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4860, "src": "8156:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4871, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4862, "src": "8169:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4870, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8161:7:21", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4872, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8161:13:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4873, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8176:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4867, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4856, "src": "8145:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4874, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8145:34:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4866, "id": 4875, "nodeType": "Return", "src": "8138:41:21" } ] }, "documentation": "@dev Writes a bytes20 to the buffer. Resizes if doing so would exceed the\n capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4877, "implemented": true, "kind": "function", "modifiers": [], "name": "writeBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4863, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4858, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8047:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4857, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8047:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4860, "name": "off", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8066:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4859, "name": "uint", "nodeType": "ElementaryTypeName", "src": "8066:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4862, "name": "data", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8076:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" }, "typeName": { "id": 4861, "name": "bytes20", "nodeType": "ElementaryTypeName", "src": "8076:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } }, "value": null, "visibility": "internal" } ], "src": "8046:43:21" }, "returnParameters": { "id": 4866, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4865, "name": "", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8113:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4864, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8113:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "8112:15:21" }, "scope": 4982, "src": "8025:161:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4897, "nodeType": "Block", "src": "8547:69:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4887, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4879, "src": "8570:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4888, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4879, "src": "8575:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4889, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "8575:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4890, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8575:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4892, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "8599:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4891, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8591:7:21", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4893, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8591:13:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4894, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8606:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4886, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4856, "src": "8564:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4895, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8564:45:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4885, "id": 4896, "nodeType": "Return", "src": "8557:52:21" } ] }, "documentation": "@dev Appends a bytes20 to the buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chhaining.", "id": 4898, "implemented": true, "kind": "function", "modifiers": [], "name": "appendBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4882, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4879, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4898, "src": "8476:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4878, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8476:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": 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memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4914, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8993:36:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4906, "id": 4915, "nodeType": "Return", "src": "8986:43:21" } ] }, "documentation": "@dev Appends a bytes32 to the buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4917, "implemented": true, "kind": "function", "modifiers": [], "name": "appendBytes32", "nodeType": "FunctionDefinition", "parameters": { "id": 4903, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4900, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4917, "src": "8905:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4899, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8905:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4902, "name": "data", "nodeType": "VariableDeclaration", "scope": 4917, "src": "8924:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4901, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "8924:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "8904:33:21" }, "returnParameters": { "id": 4906, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4905, "name": "", "nodeType": "VariableDeclaration", "scope": 4917, "src": "8961:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4904, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": 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null, "id": 4692, "name": "src", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4677, "src": "3896:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4693, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3903:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3896:9:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4695, "nodeType": "ExpressionStatement", "src": "3896:9:21" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4682, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4680, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4640, "src": "3758:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4681, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3765:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3758:9:21", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 4697, "initializationExpression": null, "loopExpression": { "expression": { "argumentTypes": null, "id": 4685, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4683, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4640, "src": "3769:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4684, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3776:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3769:9:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4686, "nodeType": "ExpressionStatement", "src": "3769:9:21" }, "nodeType": "ForStatement", "src": "3751:165:21" }, { "assignments": [ 4699 ], "declarations": [ { "constant": false, "id": 4699, "name": "mask", "nodeType": "VariableDeclaration", "scope": 4712, "src": "3958:9:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4698, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3958:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4708, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4707, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4705, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "323536", "id": 4700, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3970:3:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4703, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4701, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3978:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4702, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4640, "src": "3983:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3978:8:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4704, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "3977:10:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3970:17:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4706, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3990:1:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "3970:21:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3958:33:21" }, { "externalReferences": [ { "src": { "declaration": 4677, "isOffset": false, "isSlot": false, "src": "4049:3:21", "valueSize": 1 } }, { "mask": { "declaration": 4699, "isOffset": false, "isSlot": false, "src": "4059:4:21", "valueSize": 1 } }, { "dest": { "declaration": 4674, "isOffset": false, "isSlot": false, "src": "4104:4:21", "valueSize": 1 } }, { "mask": { "declaration": 4699, "isOffset": false, "isSlot": false, "src": "4111:4:21", "valueSize": 1 } }, { "dest": { "declaration": 4674, "isOffset": false, "isSlot": false, "src": "4136:4:21", "valueSize": 1 } } ], "id": 4709, "nodeType": "InlineAssembly", "operations": "{\n let srcpart := and(mload(src), not(mask))\n let destpart := and(mload(dest), mask)\n mstore(dest, or(destpart, srcpart))\n}", "src": "4001:173:21" }, { "expression": { "argumentTypes": null, "id": 4710, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4634, "src": "4191:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4644, "id": 4711, "nodeType": "Return", "src": "4184:10:21" } ] }, "documentation": "@dev Writes a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The start offset to write to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4713, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4641, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4634, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2890:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4633, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "2890:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4636, "name": "off", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2909:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4635, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2909:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4638, "name": "data", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2919:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4637, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2919:5:21", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4640, "name": "len", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2938:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4639, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2938:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2889:58:21" }, "returnParameters": { "id": 4644, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4643, "name": "", "nodeType": "VariableDeclaration", "scope": 4713, "src": "2970:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4642, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "2970:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "2969:15:21" }, "scope": 4982, "src": "2875:1326:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4733, "nodeType": "Block", "src": "4617:61:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4725, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4715, "src": "4640:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4726, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4715, "src": "4645:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4727, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "4645:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4728, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4645:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4729, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4717, "src": "4661:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4730, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4719, "src": "4667:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4724, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4713, "src": "4634:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes memory,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4731, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4634:37:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4723, "id": 4732, "nodeType": "Return", "src": "4627:44:21" } ] }, "documentation": "@dev Appends a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4734, "implemented": true, "kind": "function", "modifiers": [], "name": "append", "nodeType": "FunctionDefinition", "parameters": { "id": 4720, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4715, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4734, "src": "4531:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4714, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "4531:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4717, "name": "data", "nodeType": "VariableDeclaration", "scope": 4734, "src": "4550:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4716, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4550:5:21", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4719, "name": "len", "nodeType": "VariableDeclaration", "scope": 4734, "src": "4569:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4718, "name": "uint", "nodeType": "ElementaryTypeName", "src": "4569:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4530:48:21" }, "returnParameters": { "id": 4723, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4722, "name": "", "nodeType": "VariableDeclaration", "scope": 4734, "src": "4602:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4721, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "4602:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "4601:15:21" }, "scope": 4982, "src": "4515:163:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4753, "nodeType": "Block", "src": "5038:69:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4744, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4736, "src": "5061:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4745, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4736, "src": "5066:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4746, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "5066:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4747, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5066:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4748, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4738, "src": "5082:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4749, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4738, "src": "5088:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4750, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5088:11:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4743, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4713, "src": "5055:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes memory,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4751, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5055:45:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4742, "id": 4752, "nodeType": "Return", "src": "5048:52:21" } ] }, "documentation": "@dev Appends a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4754, "implemented": true, "kind": "function", "modifiers": [], "name": "append", "nodeType": "FunctionDefinition", "parameters": { "id": 4739, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4736, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4754, "src": "4962:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4735, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "4962:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, 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"isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "38", "id": 4842, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7207:1:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4845, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4843, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7212:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4844, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4809, "src": "7217:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7212:8:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4846, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7211:10:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7207:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4848, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7206:16:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7198:24:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "7191:31:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4851, "nodeType": "ExpressionStatement", "src": "7191:31:21" }, { "externalReferences": [ { "buf": { "declaration": 4803, "isOffset": false, "isSlot": false, "src": "7324:3:21", "valueSize": 1 } }, { "mask": { "declaration": 4833, "isOffset": false, "isSlot": false, "src": "7505:4:21", "valueSize": 1 } }, { "off": { "declaration": 4805, "isOffset": false, "isSlot": false, "src": "7445:3:21", "valueSize": 1 } }, { "len": { "declaration": 4809, "isOffset": false, "isSlot": false, "src": "7451:3:21", "valueSize": 1 } }, { "off": { "declaration": 4805, "isOffset": false, "isSlot": false, "src": "7596:3:21", "valueSize": 1 } }, { "len": { "declaration": 4809, "isOffset": false, "isSlot": false, "src": "7601:3:21", "valueSize": 1 } }, { "data": { "declaration": 4807, "isOffset": false, "isSlot": false, "src": "7513:4:21", "valueSize": 1 } }, { "off": { "declaration": 4805, "isOffset": false, "isSlot": false, "src": "7659:3:21", "valueSize": 1 } }, { "len": { "declaration": 4809, "isOffset": false, "isSlot": false, "src": "7664:3:21", "valueSize": 1 } } ], "id": 4852, "nodeType": "InlineAssembly", "operations": "{\n let bufptr := mload(buf)\n let dest := add(add(bufptr, off), len)\n mstore(dest, or(and(mload(dest), not(mask)), data))\n if gt(add(off, len), mload(bufptr))\n {\n mstore(bufptr, add(off, len))\n }\n}", "src": "7232:461:21" }, { "expression": { "argumentTypes": null, "id": 4853, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4803, "src": "7709:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4813, "id": 4854, "nodeType": "Return", "src": "7702:10:21" } ] }, "documentation": "@dev Writes up to 32 bytes to the buffer. Resizes if doing so would\n exceed the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@param len The number of bytes to write (left-aligned).\n@return The original buffer, for chaining.", "id": 4856, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4810, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4803, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6935:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4802, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "6935:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4805, "name": "off", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6954:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4804, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6954:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4807, "name": "data", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6964:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4806, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6964:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4809, "name": "len", "nodeType": "VariableDeclaration", "scope": 4856, "src": "6978:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4808, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6978:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6934:53:21" }, "returnParameters": { "id": 4813, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4812, "name": "", "nodeType": "VariableDeclaration", "scope": 4856, "src": "7009:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4811, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "7009:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "7008:15:21" }, "scope": 4982, "src": "6920:799:21", "stateMutability": "pure", "superFunction": null, "visibility": "private" }, { "body": { "id": 4876, "nodeType": "Block", "src": "8128:58:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4868, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4858, "src": "8151:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "id": 4869, "name": "off", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4860, "src": "8156:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4871, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4862, "src": "8169:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4870, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8161:7:21", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4872, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8161:13:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4873, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8176:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4867, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4856, "src": "8145:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4874, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8145:34:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4866, "id": 4875, "nodeType": "Return", "src": "8138:41:21" } ] }, "documentation": "@dev Writes a bytes20 to the buffer. Resizes if doing so would exceed the\n capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4877, "implemented": true, "kind": "function", "modifiers": [], "name": "writeBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4863, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4858, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8047:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4857, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8047:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4860, "name": "off", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8066:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4859, "name": "uint", "nodeType": "ElementaryTypeName", "src": "8066:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4862, "name": "data", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8076:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" }, "typeName": { "id": 4861, "name": "bytes20", "nodeType": "ElementaryTypeName", "src": "8076:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } }, "value": null, "visibility": "internal" } ], "src": "8046:43:21" }, "returnParameters": { "id": 4866, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4865, "name": "", "nodeType": "VariableDeclaration", "scope": 4877, "src": "8113:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4864, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8113:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "8112:15:21" }, "scope": 4982, "src": "8025:161:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4897, "nodeType": "Block", "src": "8547:69:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4887, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4879, "src": "8570:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4888, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4879, "src": "8575:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4889, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "8575:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4890, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8575:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4892, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4881, "src": "8599:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4891, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8591:7:21", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4893, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8591:13:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4894, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8606:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4886, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4856, "src": "8564:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4895, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8564:45:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4885, "id": 4896, "nodeType": "Return", "src": "8557:52:21" } ] }, "documentation": "@dev Appends a bytes20 to the buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chhaining.", "id": 4898, "implemented": true, "kind": "function", "modifiers": [], "name": "appendBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4882, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4879, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4898, "src": "8476:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4878, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8476:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4881, "name": "data", "nodeType": "VariableDeclaration", "scope": 4898, "src": "8495:12:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" }, "typeName": { "id": 4880, "name": "bytes20", "nodeType": "ElementaryTypeName", "src": "8495:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } }, "value": null, "visibility": "internal" } ], "src": "8475:33:21" }, "returnParameters": { "id": 4885, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4884, "name": "", "nodeType": "VariableDeclaration", "scope": 4898, "src": "8532:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4883, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8532:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "8531:15:21" }, "scope": 4982, "src": "8453:163:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4916, "nodeType": "Block", "src": "8976:60:21", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4908, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4900, "src": "8999:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4909, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4900, "src": "9004:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4910, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "9004:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4911, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "9004:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4912, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4902, "src": "9020:4:21", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3332", "id": 4913, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9026:2:21", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" } ], "id": 4907, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4713, 4856 ], "referencedDeclaration": 4856, "src": "8993:5:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4914, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8993:36:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4906, "id": 4915, "nodeType": "Return", "src": "8986:43:21" } ] }, "documentation": "@dev Appends a bytes32 to the buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4917, "implemented": true, "kind": "function", "modifiers": [], "name": "appendBytes32", "nodeType": "FunctionDefinition", "parameters": { "id": 4903, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4900, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4917, "src": "8905:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4899, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "8905:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": 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Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@param len The number of bytes to write (right-aligned).\n@return The original buffer, for chaining.", "id": 4960, "implemented": true, "kind": "function", "modifiers": [], "name": "writeInt", "nodeType": "FunctionDefinition", "parameters": { "id": 4926, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4919, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4960, "src": "9424:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4918, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "9424:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", 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"src": "10524:3:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4974, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4515, "src": "10524:7:21", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4975, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "10524:14:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4976, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4964, "src": "10540:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4977, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4966, "src": "10546:3:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4971, "name": "writeInt", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4960, "src": "10510:8:21", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4518_memory_ptr_$_t_uint256_$_t_uint256_$_t_uint256_$returns$_t_struct$_buffer_$4518_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,uint256,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4978, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10510:40:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4970, "id": 4979, "nodeType": "Return", "src": "10503:47:21" } ] }, "documentation": "@dev Appends a byte to the end of the buffer. Resizes if doing so would\nexceed the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer.", "id": 4981, "implemented": true, "kind": "function", "modifiers": [], "name": "appendInt", "nodeType": "FunctionDefinition", "parameters": { "id": 4967, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4962, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4981, "src": "10416:17:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4961, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "10416:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4964, "name": "data", "nodeType": "VariableDeclaration", "scope": 4981, "src": "10435:9:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4963, "name": "uint", "nodeType": "ElementaryTypeName", "src": "10435:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4966, "name": "len", "nodeType": "VariableDeclaration", "scope": 4981, "src": "10446:8:21", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4965, "name": "uint", "nodeType": "ElementaryTypeName", "src": "10446:4:21", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "10415:40:21" }, "returnParameters": { "id": 4970, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4969, "name": "", "nodeType": "VariableDeclaration", "scope": 4981, "src": "10478:13:21", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4968, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4518, "src": "10478:6:21", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4518_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "10477:15:21" }, "scope": 4982, "src": "10397:160:21", "stateMutability": "pure", "superFunction": null, "visibility": "internal" } ], "scope": 4983, "src": "403:10156:21" } ], "src": "0:10560:21" }, "compiler": { "name": "solc", "version": "0.5.8+commit.23d335f2.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.13", "updatedAt": "2020-03-31T16:16:11.924Z", "devdoc": { "details": "A library for working with mutable byte buffers in Solidity. * Byte buffers are mutable and expandable, and provide a variety of primitives for writing to them. At any time you can fetch a bytes object containing the current contents of the buffer. The bytes object should not be stored between operations, as it may change due to resizing of the buffer.", "methods": {} }, "userdoc": { "methods": {} } }