{
  "fileName": "ERC721Holder.sol",
  "contractName": "ERC721Holder",
  "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\nimport \"./IERC721Receiver.sol\";\n\n  /**\n   * @dev Implementation of the {IERC721Receiver} interface.\n   *\n   * Accepts all token transfers. \n   * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.\n   */\ncontract ERC721Holder is IERC721Receiver {\n\n    /**\n     * @dev See {IERC721Receiver-onERC721Received}.\n     *\n     * Always returns `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) {\n        return this.onERC721Received.selector;\n    }\n}\n",
  "sourcePath": "contracts/token/ERC721/ERC721Holder.sol",
  "sourceMap": "340:354:94:-:0;;;;;;;;;;;;;;;;;;;",
  "deployedSourceMap": "340:354:94:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;530:162;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;630:6;655:30;;;648:37;;530:162;;;;;;:::o",
  "abi": [
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        },
        {
          "internalType": "bytes",
          "name": "",
          "type": "bytes"
        }
      ],
      "name": "onERC721Received",
      "outputs": [
        {
          "internalType": "bytes4",
          "name": "",
          "type": "bytes4"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    }
  ],
  "ast": {
    "absolutePath": "contracts/token/ERC721/ERC721Holder.sol",
    "exportedSymbols": {
      "ERC721Holder": [
        11088
      ]
    },
    "id": 11089,
    "license": "MIT",
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 11063,
        "literals": [
          "solidity",
          "^",
          "0.7",
          ".0"
        ],
        "nodeType": "PragmaDirective",
        "src": "33:23:94"
      },
      {
        "absolutePath": "contracts/token/ERC721/IERC721Receiver.sol",
        "file": "./IERC721Receiver.sol",
        "id": 11064,
        "nodeType": "ImportDirective",
        "scope": 11089,
        "sourceUnit": 11318,
        "src": "58:31:94",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "abstract": false,
        "baseContracts": [
          {
            "arguments": null,
            "baseName": {
              "contractScope": null,
              "id": 11066,
              "name": "IERC721Receiver",
              "nodeType": "UserDefinedTypeName",
              "referencedDeclaration": 11317,
              "src": "365:15:94",
              "typeDescriptions": {
                "typeIdentifier": "t_contract$_IERC721Receiver_$11317",
                "typeString": "contract IERC721Receiver"
              }
            },
            "id": 11067,
            "nodeType": "InheritanceSpecifier",
            "src": "365:15:94"
          }
        ],
        "contractDependencies": [
          11317
        ],
        "contractKind": "contract",
        "documentation": {
          "id": 11065,
          "nodeType": "StructuredDocumentation",
          "src": "93:246:94",
          "text": " @dev Implementation of the {IERC721Receiver} interface.\n Accepts all token transfers. \n Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}."
        },
        "fullyImplemented": true,
        "id": 11088,
        "linearizedBaseContracts": [
          11088,
          11317
        ],
        "name": "ERC721Holder",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "baseFunctions": [
              11316
            ],
            "body": {
              "id": 11086,
              "nodeType": "Block",
              "src": "638:54:94",
              "statements": [
                {
                  "expression": {
                    "argumentTypes": null,
                    "expression": {
                      "argumentTypes": null,
                      "expression": {
                        "argumentTypes": null,
                        "id": 11082,
                        "name": "this",
                        "nodeType": "Identifier",
                        "overloadedDeclarations": [],
                        "referencedDeclaration": -28,
                        "src": "655:4:94",
                        "typeDescriptions": {
                          "typeIdentifier": "t_contract$_ERC721Holder_$11088",
                          "typeString": "contract ERC721Holder"
                        }
                      },
                      "id": 11083,
                      "isConstant": false,
                      "isLValue": false,
                      "isPure": false,
                      "lValueRequested": false,
                      "memberName": "onERC721Received",
                      "nodeType": "MemberAccess",
                      "referencedDeclaration": 11087,
                      "src": "655:21:94",
                      "typeDescriptions": {
                        "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$",
                        "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)"
                      }
                    },
                    "id": 11084,
                    "isConstant": false,
                    "isLValue": false,
                    "isPure": true,
                    "lValueRequested": false,
                    "memberName": "selector",
                    "nodeType": "MemberAccess",
                    "referencedDeclaration": null,
                    "src": "655:30:94",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bytes4",
                      "typeString": "bytes4"
                    }
                  },
                  "functionReturnParameters": 11081,
                  "id": 11085,
                  "nodeType": "Return",
                  "src": "648:37:94"
                }
              ]
            },
            "documentation": {
              "id": 11068,
              "nodeType": "StructuredDocumentation",
              "src": "388:137:94",
              "text": " @dev See {IERC721Receiver-onERC721Received}.\n Always returns `IERC721Receiver.onERC721Received.selector`."
            },
            "functionSelector": "150b7a02",
            "id": 11087,
            "implemented": true,
            "kind": "function",
            "modifiers": [],
            "name": "onERC721Received",
            "nodeType": "FunctionDefinition",
            "overrides": {
              "id": 11078,
              "nodeType": "OverrideSpecifier",
              "overrides": [],
              "src": "612:8:94"
            },
            "parameters": {
              "id": 11077,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 11070,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 11087,
                  "src": "556:7:94",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 11069,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "556:7:94",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 11072,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 11087,
                  "src": "565:7:94",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 11071,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "565:7:94",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 11074,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 11087,
                  "src": "574:7:94",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 11073,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "574:7:94",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 11076,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 11087,
                  "src": "583:12:94",
                  "stateVariable": false,
                  "storageLocation": "memory",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bytes_memory_ptr",
                    "typeString": "bytes"
                  },
                  "typeName": {
                    "id": 11075,
                    "name": "bytes",
                    "nodeType": "ElementaryTypeName",
                    "src": "583:5:94",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bytes_storage_ptr",
                      "typeString": "bytes"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "555:41:94"
            },
            "returnParameters": {
              "id": 11081,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 11080,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 11087,
                  "src": "630:6:94",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bytes4",
                    "typeString": "bytes4"
                  },
                  "typeName": {
                    "id": 11079,
                    "name": "bytes4",
                    "nodeType": "ElementaryTypeName",
                    "src": "630:6:94",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bytes4",
                      "typeString": "bytes4"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "629:8:94"
            },
            "scope": 11088,
            "src": "530:162:94",
            "stateMutability": "nonpayable",
            "virtual": true,
            "visibility": "public"
          }
        ],
        "scope": 11089,
        "src": "340:354:94"
      }
    ],
    "src": "33:662:94"
  },
  "bytecode": "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",
  "deployedBytecode": "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",
  "compiler": {
    "name": "solc",
    "version": "0.7.0+commit.9e61f92b.Emscripten.clang",
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "evmVersion": "petersburg"
  }
}