{ "contractName": "Buffer", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"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\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@ensdomains/buffer/contracts/Buffer.sol\":{\"keccak256\":\"0x1264adbd06f6e05b04539bb225063a988b7fa90343d068de60cdde6cfb6fa92d\",\"urls\":[\"bzz-raw://9362e5c8306c61ad32144028b5b6c3a90ff868c86e814d26f096a59243598ed2\",\"dweb:/ipfs/QmQPRLNQu1iN6KHKPbhkGvRZnsKgjddjzEza8Q8oJ5FfwH\"]}},\"version\":1}", "bytecode": "0x60556023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea265627a7a72315820da4d3ccfdd17bdd00b91721db7d45ff3a6b4064fc59562b4bc794a95ec34ef5d64736f6c63430005100032", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea265627a7a72315820da4d3ccfdd17bdd00b91721db7d45ff3a6b4064fc59562b4bc794a95ec34ef5d64736f6c63430005100032", "sourceMap": "403:10156:20:-;;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": "403:10156:20:-;;;;;;;;", "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": [ 5084 ] }, "id": 5085, "nodeType": "SourceUnit", "nodes": [ { "id": 4615, "literals": [ "solidity", ">", "0.4", ".18" ], "nodeType": "PragmaDirective", "src": "0:24:20" }, { "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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"expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4760, "name": "resize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4704, "src": "3077:6:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$returns$__$", "typeString": "function (struct Buffer.buffer memory,uint256) pure" } }, "id": 4771, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3077:45:20", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 4772, "nodeType": "ExpressionStatement", "src": "3077:45:20" } ] } }, { "assignments": [ 4776 ], "declarations": [ { "constant": false, "id": 4776, "name": "dest", "nodeType": "VariableDeclaration", "scope": 4814, "src": "3143:9:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4775, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3143:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4777, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "3143:9:20" }, { "assignments": [ 4779 ], "declarations": [ { "constant": false, "id": 4779, "name": "src", "nodeType": "VariableDeclaration", "scope": 4814, "src": "3162:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4778, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3162:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4780, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "3162:8:20" }, { "externalReferences": [ { "buf": { "declaration": 4736, "isOffset": false, "isSlot": false, "src": "3272:3:20", "valueSize": 1 } }, { "dest": { "declaration": 4776, "isOffset": false, "isSlot": false, "src": "3454:4:20", "valueSize": 1 } }, { "off": { "declaration": 4738, "isOffset": false, "isSlot": false, "src": "3483:3:20", "valueSize": 1 } }, { "len": { "declaration": 4742, "isOffset": false, "isSlot": false, "src": "3568:3:20", "valueSize": 1 } }, { "off": { "declaration": 4738, "isOffset": false, "isSlot": false, "src": "3573:3:20", "valueSize": 1 } }, { "src": { "declaration": 4779, "isOffset": false, "isSlot": false, "src": "3661:3:20", "valueSize": 1 } }, { "len": { "declaration": 4742, "isOffset": false, "isSlot": false, "src": "3624:3:20", "valueSize": 1 } }, { "off": { "declaration": 4738, "isOffset": false, "isSlot": false, "src": "3629:3:20", "valueSize": 1 } }, { "data": { "declaration": 4740, "isOffset": false, "isSlot": false, "src": "3672:4:20", "valueSize": 1 } } ], "id": 4781, "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) { mstore(bufptr, add(len, off)) }\n src := add(data, 32)\n}", "src": "3180:511:20" }, { "body": { "id": 4798, "nodeType": "Block", "src": "3780:136:20", "statements": [ { "externalReferences": [ { "src": { "declaration": 4779, "isOffset": false, "isSlot": false, "src": "3840:3:20", "valueSize": 1 } }, { "dest": { "declaration": 4776, "isOffset": false, "isSlot": false, "src": "3828:4:20", "valueSize": 1 } } ], "id": 4789, "nodeType": "InlineAssembly", "operations": "{ mstore(dest, mload(src)) }", "src": "3794:65:20" }, { "expression": { "argumentTypes": null, "id": 4792, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4790, "name": "dest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4776, "src": "3872:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4791, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3880:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3872:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4793, "nodeType": "ExpressionStatement", "src": "3872:10:20" }, { "expression": { "argumentTypes": null, "id": 4796, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4794, "name": "src", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4779, "src": "3896:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4795, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3903:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3896:9:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4797, "nodeType": "ExpressionStatement", "src": "3896:9:20" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4784, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4782, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4742, "src": "3758:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4783, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3765:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3758:9:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 4799, "initializationExpression": null, "loopExpression": { "expression": { "argumentTypes": null, "id": 4787, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4785, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4742, "src": "3769:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4786, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3776:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3769:9:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4788, "nodeType": "ExpressionStatement", "src": "3769:9:20" }, "nodeType": "ForStatement", "src": "3751:165:20" }, { "assignments": [ 4801 ], "declarations": [ { "constant": false, "id": 4801, "name": "mask", "nodeType": "VariableDeclaration", "scope": 4814, "src": "3958:9:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4800, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3958:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4810, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4809, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4807, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "323536", "id": 4802, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3970:3:20", "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": 4805, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4803, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3978:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4804, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4742, "src": "3983:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3978:8:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4806, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "3977:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3970:17:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4808, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3990:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "3970:21:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3958:33:20" }, { "externalReferences": [ { "src": { "declaration": 4779, "isOffset": false, "isSlot": false, "src": "4049:3:20", "valueSize": 1 } }, { "mask": { "declaration": 4801, "isOffset": false, "isSlot": false, "src": "4059:4:20", "valueSize": 1 } }, { "dest": { "declaration": 4776, "isOffset": false, "isSlot": false, "src": "4104:4:20", "valueSize": 1 } }, { "mask": { "declaration": 4801, "isOffset": false, "isSlot": false, "src": "4111:4:20", "valueSize": 1 } }, { "dest": { "declaration": 4776, "isOffset": false, "isSlot": false, "src": "4136:4:20", "valueSize": 1 } } ], "id": 4811, "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": "4001:173:20" }, { "expression": { "argumentTypes": null, "id": 4812, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4736, "src": "4191:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4746, "id": 4813, "nodeType": "Return", "src": "4184:10:20" } ] }, "documentation": "@dev Writes a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The start offset to write to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4815, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4743, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4736, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2890:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4735, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "2890:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4738, "name": "off", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2909:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4737, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2909:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4740, "name": "data", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2919:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4739, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2919:5:20", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4742, "name": "len", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2938:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4741, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2938:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2889:58:20" }, "returnParameters": { "id": 4746, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4745, "name": "", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2970:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4744, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "2970:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "2969:15:20" }, "scope": 5084, "src": "2875:1326:20", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4835, "nodeType": "Block", "src": "4617:61:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4827, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4817, "src": "4640:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4828, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4817, "src": "4645:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4829, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4617, "src": "4645:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4830, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4645:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4831, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4819, "src": "4661:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4832, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4821, "src": "4667:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4826, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4815, "src": "4634:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes memory,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4833, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4634:37:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4825, "id": 4834, "nodeType": "Return", "src": "4627:44:20" } ] }, "documentation": "@dev Appends a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4836, "implemented": true, "kind": "function", "modifiers": [], "name": "append", "nodeType": "FunctionDefinition", "parameters": { "id": 4822, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4817, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4836, "src": "4531:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4816, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "4531:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, 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"lValueRequested": false, "nodeType": "TupleExpression", "src": "7090:11:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "hexValue": "32", "id": 4928, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7104:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "src": "7090:15:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4922, "name": "resize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4704, "src": "7078:6:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$returns$__$", "typeString": "function (struct Buffer.buffer memory,uint256) pure" } }, "id": 4930, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7078:28:20", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 4931, "nodeType": "ExpressionStatement", "src": "7078:28:20" } ] } }, { "assignments": [ 4935 ], "declarations": [ { "constant": false, "id": 4935, "name": "mask", "nodeType": "VariableDeclaration", "scope": 4957, "src": "7127:9:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4934, "name": "uint", "nodeType": "ElementaryTypeName", "src": "7127:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4941, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4940, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4938, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "323536", "id": 4936, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7139:3:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "256" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "id": 4937, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4911, "src": "7146:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7139:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4939, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7152:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "7139:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "7127:26:20" }, { "expression": { "argumentTypes": null, "id": 4952, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4942, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4909, "src": "7191:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "id": 4951, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4943, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4909, "src": "7198:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "BinaryOperation", "operator": ">>", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4949, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "38", "id": 4944, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7207:1:20", "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": 4947, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4945, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7212:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4946, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4911, "src": "7217:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7212:8:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4948, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7211:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7207:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4950, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7206:16:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7198:24:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "7191:31:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4953, "nodeType": "ExpressionStatement", "src": "7191:31:20" }, { "externalReferences": [ { "buf": { "declaration": 4905, "isOffset": false, "isSlot": false, "src": "7324:3:20", "valueSize": 1 } }, { "mask": { "declaration": 4935, "isOffset": false, "isSlot": false, "src": "7505:4:20", "valueSize": 1 } }, { "off": { "declaration": 4907, "isOffset": false, "isSlot": false, "src": "7445:3:20", "valueSize": 1 } }, { "len": { "declaration": 4911, "isOffset": false, "isSlot": false, "src": "7451:3:20", "valueSize": 1 } }, { "off": { "declaration": 4907, "isOffset": false, "isSlot": false, "src": "7596:3:20", "valueSize": 1 } }, { "len": { "declaration": 4911, "isOffset": false, "isSlot": false, "src": "7601:3:20", "valueSize": 1 } }, { "data": { "declaration": 4909, "isOffset": false, "isSlot": false, "src": "7513:4:20", "valueSize": 1 } }, { "off": { "declaration": 4907, "isOffset": false, "isSlot": false, "src": "7659:3:20", "valueSize": 1 } }, { "len": { "declaration": 4911, "isOffset": false, "isSlot": false, "src": "7664:3:20", "valueSize": 1 } } ], "id": 4954, "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)) { mstore(bufptr, add(off, len)) }\n}", "src": "7232:461:20" }, { "expression": { "argumentTypes": null, "id": 4955, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4905, "src": "7709:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4915, "id": 4956, "nodeType": "Return", "src": "7702:10:20" } ] }, "documentation": "@dev Writes up to 32 bytes to the buffer. Resizes if doing so would\n exceed the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@param len The number of bytes to write (left-aligned).\n@return The original buffer, for chaining.", "id": 4958, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4912, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4905, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6935:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4904, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "6935:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4907, "name": "off", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6954:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4906, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6954:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4909, "name": "data", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6964:12:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4908, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6964:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4911, "name": "len", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6978:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4910, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6978:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6934:53:20" }, "returnParameters": { "id": 4915, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4914, "name": "", "nodeType": "VariableDeclaration", "scope": 4958, "src": "7009:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4913, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "7009:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "7008:15:20" }, "scope": 5084, "src": "6920:799:20", "stateMutability": "pure", "superFunction": null, "visibility": "private" }, { "body": { "id": 4978, "nodeType": "Block", "src": "8128:58:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4970, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4960, "src": "8151:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "id": 4971, "name": "off", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4962, "src": "8156:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4973, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4964, "src": "8169:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4972, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8161:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4974, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8161:13:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4975, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8176:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4969, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4958, "src": "8145:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4976, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8145:34:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4968, "id": 4977, "nodeType": "Return", "src": "8138:41:20" } ] }, "documentation": "@dev Writes a bytes20 to the buffer. Resizes if doing so would exceed the\n capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4979, "implemented": true, "kind": "function", "modifiers": [], "name": "writeBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4965, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4960, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8047:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4959, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "8047:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4962, "name": "off", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8066:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4961, "name": "uint", "nodeType": "ElementaryTypeName", "src": "8066:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4964, "name": "data", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8076:12:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" }, "typeName": { "id": 4963, "name": "bytes20", "nodeType": "ElementaryTypeName", "src": "8076:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } }, "value": null, "visibility": "internal" } ], "src": "8046:43:20" }, "returnParameters": { "id": 4968, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4967, "name": "", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8113:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4966, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "8113:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "8112:15:20" }, "scope": 5084, "src": "8025:161:20", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4999, "nodeType": "Block", "src": "8547:69:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4989, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4981, "src": "8570:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4990, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4981, "src": "8575:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4991, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4617, "src": "8575:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4992, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8575:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4994, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4983, "src": "8599:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4993, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8591:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4995, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8591:13:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4996, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8606:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4988, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4958, "src": "8564:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4997, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8564:45:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4987, "id": 4998, "nodeType": "Return", "src": "8557:52:20" } ] }, "documentation": "@dev Appends a bytes20 to the buffer. 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At any time you can fetch a bytes object containing the\ncurrent contents of the buffer. 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"leftHandSide": { "argumentTypes": null, "id": 4790, "name": "dest", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4776, "src": "3872:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4791, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3880:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3872:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4793, "nodeType": "ExpressionStatement", "src": "3872:10:20" }, { "expression": { "argumentTypes": null, "id": 4796, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4794, "name": "src", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4779, "src": "3896:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4795, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3903:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3896:9:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4797, "nodeType": "ExpressionStatement", "src": "3896:9:20" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4784, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4782, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4742, "src": "3758:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4783, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3765:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3758:9:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 4799, "initializationExpression": null, "loopExpression": { "expression": { "argumentTypes": null, "id": 4787, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4785, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4742, "src": "3769:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "-=", "rightHandSide": { "argumentTypes": null, "hexValue": "3332", "id": 4786, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3776:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "3769:9:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4788, "nodeType": "ExpressionStatement", "src": "3769:9:20" }, "nodeType": "ForStatement", "src": "3751:165:20" }, { "assignments": [ 4801 ], "declarations": [ { "constant": false, "id": 4801, "name": "mask", "nodeType": "VariableDeclaration", "scope": 4814, "src": "3958:9:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4800, "name": "uint", "nodeType": "ElementaryTypeName", "src": "3958:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4810, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4809, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4807, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "323536", "id": 4802, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3970:3:20", "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": 4805, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4803, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3978:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4804, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4742, "src": "3983:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3978:8:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4806, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "3977:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3970:17:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4808, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3990:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "3970:21:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3958:33:20" }, { "externalReferences": [ { "src": { "declaration": 4779, "isOffset": false, "isSlot": false, "src": "4049:3:20", "valueSize": 1 } }, { "mask": { "declaration": 4801, "isOffset": false, "isSlot": false, "src": "4059:4:20", "valueSize": 1 } }, { "dest": { "declaration": 4776, "isOffset": false, "isSlot": false, "src": "4104:4:20", "valueSize": 1 } }, { "mask": { "declaration": 4801, "isOffset": false, "isSlot": false, "src": "4111:4:20", "valueSize": 1 } }, { "dest": { "declaration": 4776, "isOffset": false, "isSlot": false, "src": "4136:4:20", "valueSize": 1 } } ], "id": 4811, "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": "4001:173:20" }, { "expression": { "argumentTypes": null, "id": 4812, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4736, "src": "4191:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4746, "id": 4813, "nodeType": "Return", "src": "4184:10:20" } ] }, "documentation": "@dev Writes a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The start offset to write to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4815, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4743, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4736, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2890:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4735, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "2890:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4738, "name": "off", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2909:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4737, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2909:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4740, "name": "data", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2919:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4739, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "2919:5:20", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4742, "name": "len", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2938:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4741, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2938:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2889:58:20" }, "returnParameters": { "id": 4746, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4745, "name": "", "nodeType": "VariableDeclaration", "scope": 4815, "src": "2970:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4744, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "2970:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "2969:15:20" }, "scope": 5084, "src": "2875:1326:20", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4835, "nodeType": "Block", "src": "4617:61:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4827, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4817, "src": "4640:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4828, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4817, "src": "4645:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4829, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4617, "src": "4645:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4830, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4645:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4831, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4819, "src": "4661:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 4832, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4821, "src": "4667:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4826, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4815, "src": "4634:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes memory,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4833, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4634:37:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4825, "id": 4834, "nodeType": "Return", "src": "4627:44:20" } ] }, "documentation": "@dev Appends a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@param len The number of bytes to copy.\n@return The original buffer, for chaining.", "id": 4836, "implemented": true, "kind": "function", "modifiers": [], "name": "append", "nodeType": "FunctionDefinition", "parameters": { "id": 4822, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4817, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4836, "src": "4531:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4816, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "4531:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4819, "name": "data", "nodeType": "VariableDeclaration", "scope": 4836, "src": "4550:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 4818, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4550:5:20", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4821, "name": "len", "nodeType": "VariableDeclaration", "scope": 4836, "src": "4569:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4820, "name": "uint", "nodeType": "ElementaryTypeName", "src": "4569:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4530:48:20" }, "returnParameters": { "id": 4825, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4824, "name": "", "nodeType": "VariableDeclaration", "scope": 4836, "src": "4602:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4823, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "4602:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "4601:15:20" }, "scope": 5084, "src": "4515:163:20", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4855, "nodeType": "Block", "src": "5038:69:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4846, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4838, "src": "5061:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4847, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4838, "src": "5066:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4848, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4617, "src": "5066:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4849, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5066:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 4850, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4840, "src": "5082:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4851, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4840, "src": "5088:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 4852, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5088:11:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 4845, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4815, "src": "5055:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes memory,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4853, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5055:45:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4844, "id": 4854, "nodeType": "Return", "src": "5048:52:20" } ] }, "documentation": "@dev Appends a byte string to a buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4856, "implemented": true, "kind": "function", "modifiers": [], "name": "append", "nodeType": "FunctionDefinition", "parameters": { "id": 4841, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4838, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4856, "src": "4962:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4837, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "4962:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_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": 4944, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7207:1:20", "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": 4947, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3332", "id": 4945, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7212:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 4946, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4911, "src": "7217:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7212:8:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4948, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7211:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7207:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 4950, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7206:16:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "7198:24:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "7191:31:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 4953, "nodeType": "ExpressionStatement", "src": "7191:31:20" }, { "externalReferences": [ { "buf": { "declaration": 4905, "isOffset": false, "isSlot": false, "src": "7324:3:20", "valueSize": 1 } }, { "mask": { "declaration": 4935, "isOffset": false, "isSlot": false, "src": "7505:4:20", "valueSize": 1 } }, { "off": { "declaration": 4907, "isOffset": false, "isSlot": false, "src": "7445:3:20", "valueSize": 1 } }, { "len": { "declaration": 4911, "isOffset": false, "isSlot": false, "src": "7451:3:20", "valueSize": 1 } }, { "off": { "declaration": 4907, "isOffset": false, "isSlot": false, "src": "7596:3:20", "valueSize": 1 } }, { "len": { "declaration": 4911, "isOffset": false, "isSlot": false, "src": "7601:3:20", "valueSize": 1 } }, { "data": { "declaration": 4909, "isOffset": false, "isSlot": false, "src": "7513:4:20", "valueSize": 1 } }, { "off": { "declaration": 4907, "isOffset": false, "isSlot": false, "src": "7659:3:20", "valueSize": 1 } }, { "len": { "declaration": 4911, "isOffset": false, "isSlot": false, "src": "7664:3:20", "valueSize": 1 } } ], "id": 4954, "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)) { mstore(bufptr, add(off, len)) }\n}", "src": "7232:461:20" }, { "expression": { "argumentTypes": null, "id": 4955, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4905, "src": "7709:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4915, "id": 4956, "nodeType": "Return", "src": "7702:10:20" } ] }, "documentation": "@dev Writes up to 32 bytes to the buffer. Resizes if doing so would\n exceed the capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@param len The number of bytes to write (left-aligned).\n@return The original buffer, for chaining.", "id": 4958, "implemented": true, "kind": "function", "modifiers": [], "name": "write", "nodeType": "FunctionDefinition", "parameters": { "id": 4912, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4905, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6935:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4904, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "6935:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4907, "name": "off", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6954:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4906, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6954:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4909, "name": "data", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6964:12:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4908, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "6964:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4911, "name": "len", "nodeType": "VariableDeclaration", "scope": 4958, "src": "6978:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4910, "name": "uint", "nodeType": "ElementaryTypeName", "src": "6978:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "6934:53:20" }, "returnParameters": { "id": 4915, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4914, "name": "", "nodeType": "VariableDeclaration", "scope": 4958, "src": "7009:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4913, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "7009:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "7008:15:20" }, "scope": 5084, "src": "6920:799:20", "stateMutability": "pure", "superFunction": null, "visibility": "private" }, { "body": { "id": 4978, "nodeType": "Block", "src": "8128:58:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4970, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4960, "src": "8151:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "id": 4971, "name": "off", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4962, "src": "8156:3:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4973, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4964, "src": "8169:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4972, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8161:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4974, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8161:13:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4975, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8176:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4969, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4958, "src": "8145:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4976, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8145:34:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4968, "id": 4977, "nodeType": "Return", "src": "8138:41:20" } ] }, "documentation": "@dev Writes a bytes20 to the buffer. Resizes if doing so would exceed the\n capacity of the buffer.\n@param buf The buffer to append to.\n@param off The offset to write at.\n@param data The data to append.\n@return The original buffer, for chaining.", "id": 4979, "implemented": true, "kind": "function", "modifiers": [], "name": "writeBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4965, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4960, "name": "buf", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8047:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4959, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "8047:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4962, "name": "off", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8066:8:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4961, "name": "uint", "nodeType": "ElementaryTypeName", "src": "8066:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4964, "name": "data", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8076:12:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" }, "typeName": { "id": 4963, "name": "bytes20", "nodeType": "ElementaryTypeName", "src": "8076:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } }, "value": null, "visibility": "internal" } ], "src": "8046:43:20" }, "returnParameters": { "id": 4968, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4967, "name": "", "nodeType": "VariableDeclaration", "scope": 4979, "src": "8113:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4966, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "8113:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "8112:15:20" }, "scope": 5084, "src": "8025:161:20", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 4999, "nodeType": "Block", "src": "8547:69:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4989, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4981, "src": "8570:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4990, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4981, "src": "8575:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "id": 4991, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "buf", "nodeType": "MemberAccess", "referencedDeclaration": 4617, "src": "8575:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory", "typeString": "bytes memory" } }, "id": 4992, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8575:14:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4994, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4983, "src": "8599:4:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } ], "id": 4993, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8591:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes32_$", "typeString": "type(bytes32)" }, "typeName": "bytes32" }, "id": 4995, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8591:13:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "hexValue": "3230", "id": 4996, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8606:2:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" }, "value": "20" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_rational_20_by_1", "typeString": "int_const 20" } ], "id": 4988, "name": "write", "nodeType": "Identifier", "overloadedDeclarations": [ 4815, 4958 ], "referencedDeclaration": 4958, "src": "8564:5:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_buffer_$4620_memory_ptr_$_t_uint256_$_t_bytes32_$_t_uint256_$returns$_t_struct$_buffer_$4620_memory_ptr_$", "typeString": "function (struct Buffer.buffer memory,uint256,bytes32,uint256) pure returns (struct Buffer.buffer memory)" } }, "id": 4997, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8564:45:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, "functionReturnParameters": 4987, "id": 4998, "nodeType": "Return", "src": "8557:52:20" } ] }, "documentation": "@dev Appends a bytes20 to the buffer. Resizes if doing so would exceed\n the capacity of the buffer.\n@param buf The buffer to append to.\n@param data The data to append.\n@return The original buffer, for chhaining.", "id": 5000, "implemented": true, "kind": "function", "modifiers": [], "name": "appendBytes20", "nodeType": "FunctionDefinition", "parameters": { "id": 4984, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4981, "name": "buf", "nodeType": "VariableDeclaration", "scope": 5000, "src": "8476:17:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4980, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "8476:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4983, "name": "data", "nodeType": "VariableDeclaration", "scope": 5000, "src": "8495:12:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" }, "typeName": { "id": 4982, "name": "bytes20", "nodeType": "ElementaryTypeName", "src": "8495:7:20", "typeDescriptions": { "typeIdentifier": "t_bytes20", "typeString": "bytes20" } }, "value": null, "visibility": "internal" } ], "src": "8475:33:20" }, "returnParameters": { "id": 4987, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4986, "name": "", "nodeType": "VariableDeclaration", "scope": 5000, "src": "8532:13:20", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer" }, "typeName": { "contractScope": null, "id": 4985, "name": "buffer", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4620, "src": "8532:6:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_storage_ptr", "typeString": "struct Buffer.buffer" } }, "value": null, "visibility": "internal" } ], "src": "8531:15:20" }, "scope": 5084, "src": "8453:163:20", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5018, "nodeType": "Block", "src": "8976:60:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5010, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5002, "src": "8999:3:20", "typeDescriptions": { "typeIdentifier": "t_struct$_buffer_$4620_memory_ptr", "typeString": "struct Buffer.buffer memory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5011, "name": "buf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5002, "src": "9004:3:20", "typeDescriptions": { 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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": {} } }