{ "fileName": "IERC777Sender.sol", "contractName": "IERC777Sender", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\n/**\n * @dev Interface of the ERC777TokensSender standard as defined in the EIP.\n *\n * {IERC777} Token holders can be notified of operations performed on their\n * tokens by having a contract implement this interface (contract holders can be\n * their own implementer) and registering it on the\n * https://eips.ethereum.org/EIPS/eip-1820[ERC1820 global registry].\n *\n * See {IERC1820Registry} and {ERC1820Implementer}.\n */\ninterface IERC777Sender {\n /**\n * @dev Called by an {IERC777} token contract whenever a registered holder's\n * (`from`) tokens are about to be moved or destroyed. The type of operation\n * is conveyed by `to` being the zero address or not.\n *\n * This call occurs _before_ the token contract's state is updated, so\n * {IERC777-balanceOf}, etc., can be used to query the pre-operation state.\n *\n * This function may revert to prevent the operation from being executed.\n */\n function tokensToSend(\n address operator,\n address from,\n address to,\n uint256 amount,\n bytes calldata userData,\n bytes calldata operatorData\n ) external;\n}\n", "sourcePath": "contracts/token/ERC777/IERC777Sender.sol", "sourceMap": "", "deployedSourceMap": "", "abi": [ { "inputs": [ { "internalType": "address", "name": "operator", "type": "address" }, { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" }, { "internalType": "bytes", "name": "userData", "type": "bytes" }, { "internalType": "bytes", "name": "operatorData", "type": "bytes" } ], "name": "tokensToSend", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "ast": { "absolutePath": "contracts/token/ERC777/IERC777Sender.sol", "exportedSymbols": { "IERC777Sender": [ 12616 ] }, "id": 12617, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 12598, "literals": [ "solidity", "^", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:103" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "interface", "documentation": { "id": 12599, "nodeType": "StructuredDocumentation", "src": "58:420:103", "text": " @dev Interface of the ERC777TokensSender standard as defined in the EIP.\n {IERC777} Token holders can be notified of operations performed on their\n tokens by having a contract implement this interface (contract holders can be\n their own implementer) and registering it on the\n https://eips.ethereum.org/EIPS/eip-1820[ERC1820 global registry].\n See {IERC1820Registry} and {ERC1820Implementer}." }, "fullyImplemented": false, "id": 12616, "linearizedBaseContracts": [ 12616 ], "name": "IERC777Sender", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": { "id": 12600, "nodeType": "StructuredDocumentation", "src": "509:478:103", "text": " @dev Called by an {IERC777} token contract whenever a registered holder's\n (`from`) tokens are about to be moved or destroyed. The type of operation\n is conveyed by `to` being the zero address or not.\n This call occurs _before_ the token contract's state is updated, so\n {IERC777-balanceOf}, etc., can be used to query the pre-operation state.\n This function may revert to prevent the operation from being executed." }, "functionSelector": "75ab9782", "id": 12615, "implemented": false, "kind": "function", "modifiers": [], "name": "tokensToSend", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12613, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12602, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12615, "src": "1023:16:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12601, "name": "address", "nodeType": "ElementaryTypeName", "src": "1023:7:103", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12604, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12615, "src": "1049:12:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12603, "name": "address", "nodeType": "ElementaryTypeName", "src": "1049:7:103", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12606, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12615, "src": "1071:10:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12605, "name": "address", "nodeType": "ElementaryTypeName", "src": "1071:7:103", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12608, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12615, "src": "1091:14:103", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12607, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1091:7:103", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12610, "mutability": "mutable", "name": "userData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12615, "src": "1115:23:103", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 12609, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1115:5:103", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12612, "mutability": "mutable", "name": "operatorData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12615, "src": "1148:27:103", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 12611, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1148:5:103", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "1013:168:103" }, "returnParameters": { "id": 12614, "nodeType": "ParameterList", "parameters": [], "src": "1190:0:103" }, "scope": 12616, "src": "992:199:103", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 12617, "src": "479:714:103" } ], "src": "33:1161:103" }, "bytecode": "0x", "deployedBytecode": "0x", "compiler": { "name": "solc", "version": "0.7.0+commit.9e61f92b.Emscripten.clang", "optimizer": { "enabled": false, "runs": 200 }, "evmVersion": "petersburg" } }