{ "contractName": "Proxy", "abi": [ { "stateMutability": "payable", "type": "fallback" }, { "stateMutability": "payable", "type": "receive" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.6+commit.6c089d02\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"stateMutability\":\"payable\",\"type\":\"fallback\"},{\"stateMutability\":\"payable\",\"type\":\"receive\"}],\"devdoc\":{\"details\":\"Implements delegation of calls to other contracts, with proper forwarding of return values and bubbling of failures. It defines a fallback function that delegates all calls to the address returned by the abstract _implementation() internal function.\",\"methods\":{},\"title\":\"Proxy\"},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"@iexec/solidity/contracts/Upgradeability/Proxy.sol\":\"Proxy\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@iexec/solidity/contracts/Upgradeability/Proxy.sol\":{\"keccak256\":\"0xd89f285d80cfeff0efc87f11dbc024a587da3bba142a06695cbac7e4050e9302\",\"urls\":[\"bzz-raw://9c8323ec7efc9fde6c1529f1070c3f3406adb5f8836b17221530d8f0110fe3f4\",\"dweb:/ipfs/QmURRsX9L2gZ83aMULtY1EuRMJExHhFYErCbkxE5CNkAzE\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "immutableReferences": {}, "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity ^0.6.0;\n\n/**\n * @title Proxy\n * @dev Implements delegation of calls to other contracts, with proper\n * forwarding of return values and bubbling of failures.\n * It defines a fallback function that delegates all calls to the address\n * returned by the abstract _implementation() internal function.\n */\nabstract contract Proxy {\n /**\n * @dev Receive function.\n * Implemented entirely in `_fallback`.\n */\n receive() external payable {\n _fallback();\n }\n\n /**\n * @dev Fallback function.\n * Implemented entirely in `_fallback`.\n */\n fallback() external payable {\n _fallback();\n }\n\n /**\n * @return impl The Address of the implementation.\n */\n function _implementation() internal virtual view returns (address impl);\n\n /**\n * @dev Delegates execution to an implementation contract.\n * This is a low level function that doesn't return to its internal call site.\n * It will return to the external caller whatever the implementation returns.\n * @param implementation Address to delegate.\n */\n function _delegate(address implementation) internal {\n assembly {\n // Copy msg.data. We take full control of memory in this inline assembly\n // block because it will not return to Solidity code. We overwrite the\n // Solidity scratch pad at memory position 0.\n calldatacopy(0, 0, calldatasize())\n\n // Call the implementation.\n // out and outsize are 0 because we don't know the size yet.\n let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)\n\n // Copy the returned data.\n returndatacopy(0, 0, returndatasize())\n\n switch result\n // delegatecall returns 0 on error.\n case 0 { revert(0, returndatasize()) }\n default { return(0, returndatasize()) }\n }\n }\n\n /**\n * @dev Function that is run as the first thing in the fallback function.\n * Can be redefined in derived contracts to add functionality.\n * Redefinitions must call super._willFallback().\n */\n function _willFallback() internal virtual {\n }\n\n /**\n * @dev fallback implementation.\n * Extracted to enable manual triggering.\n */\n function _fallback() internal {\n _willFallback();\n _delegate(_implementation());\n }\n}\n", "sourcePath": "@iexec/solidity/contracts/Upgradeability/Proxy.sol", "ast": { "absolutePath": "@iexec/solidity/contracts/Upgradeability/Proxy.sol", "exportedSymbols": { "Proxy": [ 10725 ] }, "id": 10726, "nodeType": "SourceUnit", "nodes": [ { "id": 10675, "literals": [ "solidity", "^", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:64" }, { "abstract": true, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 10676, "nodeType": "StructuredDocumentation", "src": "25:290:64", "text": "@title Proxy\n@dev Implements delegation of calls to other contracts, with proper\nforwarding of return values and bubbling of failures.\nIt defines a fallback function that delegates all calls to the address\nreturned by the abstract _implementation() internal function." }, "fullyImplemented": false, "id": 10725, "linearizedBaseContracts": [ 10725 ], "name": "Proxy", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 10683, "nodeType": "Block", "src": "453:22:64", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10680, "name": "_fallback", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10724, "src": "459:9:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 10681, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "459:11:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10682, "nodeType": "ExpressionStatement", "src": "459:11:64" } ] }, "documentation": { "id": 10677, "nodeType": "StructuredDocumentation", "src": "344:79:64", "text": "@dev Receive function.\nImplemented entirely in `_fallback`." }, "id": 10684, "implemented": true, "kind": "receive", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10678, "nodeType": "ParameterList", "parameters": [], "src": "433:2:64" }, "returnParameters": { "id": 10679, "nodeType": "ParameterList", "parameters": [], "src": "453:0:64" }, "scope": 10725, "src": "426:49:64", "stateMutability": "payable", "virtual": false, "visibility": "external" }, { "body": { "id": 10691, "nodeType": "Block", "src": "590:22:64", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10688, "name": "_fallback", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10724, "src": "596:9:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 10689, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "596:11:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10690, "nodeType": "ExpressionStatement", "src": "596:11:64" } ] }, "documentation": { "id": 10685, "nodeType": "StructuredDocumentation", "src": "479:80:64", "text": "@dev Fallback function.\nImplemented entirely in `_fallback`." }, "id": 10692, "implemented": true, "kind": "fallback", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10686, "nodeType": "ParameterList", "parameters": [], "src": "570:2:64" }, "returnParameters": { "id": 10687, "nodeType": "ParameterList", "parameters": [], "src": "590:0:64" }, "scope": 10725, "src": "562:50:64", "stateMutability": "payable", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 10693, "nodeType": "StructuredDocumentation", "src": "616:62:64", "text": "@return impl The Address of the implementation." }, "id": 10698, "implemented": false, "kind": "function", "modifiers": [], "name": "_implementation", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10694, "nodeType": "ParameterList", "parameters": [], "src": "705:2:64" }, "returnParameters": { "id": 10697, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 10696, "mutability": "mutable", "name": "impl", "nodeType": "VariableDeclaration", "overrides": null, "scope": 10698, "src": "739:12:64", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 10695, "name": "address", "nodeType": "ElementaryTypeName", "src": "739:7:64", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "738:14:64" }, "scope": 10725, "src": "681:72:64", "stateMutability": "view", "virtual": true, "visibility": "internal" }, { "body": { "id": 10705, "nodeType": "Block", "src": "1091:691:64", "statements": [ { "AST": { "nodeType": "YulBlock", "src": "1106:672:64", "statements": [ { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1335:1:64", "type": "", "value": "0" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1338:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "calldatasize", "nodeType": "YulIdentifier", "src": "1341:12:64" }, "nodeType": "YulFunctionCall", "src": "1341:14:64" } ], "functionName": { "name": "calldatacopy", "nodeType": "YulIdentifier", "src": "1322:12:64" }, "nodeType": "YulFunctionCall", "src": "1322:34:64" }, "nodeType": "YulExpressionStatement", "src": "1322:34:64" }, { "nodeType": "YulVariableDeclaration", "src": "1465:74:64", "value": { "arguments": [ { "arguments": [], "functionName": { "name": "gas", "nodeType": "YulIdentifier", "src": "1492:3:64" }, "nodeType": "YulFunctionCall", "src": "1492:5:64" }, { "name": "implementation", "nodeType": "YulIdentifier", "src": "1499:14:64" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1515:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "calldatasize", "nodeType": "YulIdentifier", "src": "1518:12:64" }, "nodeType": "YulFunctionCall", "src": "1518:14:64" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1534:1:64", "type": "", "value": "0" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1537:1:64", "type": "", "value": "0" } ], "functionName": { "name": "delegatecall", "nodeType": "YulIdentifier", "src": "1479:12:64" }, "nodeType": "YulFunctionCall", "src": "1479:60:64" }, "variables": [ { "name": "result", "nodeType": "YulTypedName", "src": "1469:6:64", "type": "" } ] }, { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1595:1:64", "type": "", "value": "0" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1598:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "returndatasize", "nodeType": "YulIdentifier", "src": "1601:14:64" }, "nodeType": "YulFunctionCall", "src": "1601:16:64" } ], "functionName": { "name": "returndatacopy", "nodeType": "YulIdentifier", "src": "1580:14:64" }, "nodeType": "YulFunctionCall", "src": "1580:38:64" }, "nodeType": "YulExpressionStatement", "src": "1580:38:64" }, { "cases": [ { "body": { "nodeType": "YulBlock", "src": "1695:31:64", "statements": [ { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1704:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "returndatasize", "nodeType": "YulIdentifier", "src": "1707:14:64" }, "nodeType": "YulFunctionCall", "src": "1707:16:64" } ], "functionName": { "name": "revert", "nodeType": "YulIdentifier", "src": "1697:6:64" }, "nodeType": "YulFunctionCall", "src": "1697:27:64" }, "nodeType": "YulExpressionStatement", "src": "1697:27:64" } ] }, "nodeType": "YulCase", "src": "1688:38:64", "value": { "kind": "number", "nodeType": "YulLiteral", "src": "1693:1:64", "type": "", "value": "0" } }, { "body": { "nodeType": "YulBlock", "src": "1741:31:64", "statements": [ { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1750:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "returndatasize", "nodeType": "YulIdentifier", "src": "1753:14:64" }, "nodeType": "YulFunctionCall", "src": "1753:16:64" } ], "functionName": { "name": "return", "nodeType": "YulIdentifier", "src": "1743:6:64" }, "nodeType": "YulFunctionCall", "src": "1743:27:64" }, "nodeType": "YulExpressionStatement", "src": "1743:27:64" } ] }, "nodeType": "YulCase", "src": "1733:39:64", "value": "default" } ], "expression": { "name": "result", "nodeType": "YulIdentifier", "src": "1633:6:64" }, "nodeType": "YulSwitch", "src": "1626:146:64" } ] }, "evmVersion": "istanbul", "externalReferences": [ { "declaration": 10701, "isOffset": false, "isSlot": false, "src": "1499:14:64", "valueSize": 1 } ], "id": 10704, "nodeType": "InlineAssembly", "src": "1097:681:64" } ] }, "documentation": { "id": 10699, "nodeType": "StructuredDocumentation", "src": "757:279:64", "text": "@dev Delegates execution to an implementation contract.\nThis is a low level function that doesn't return to its internal call site.\nIt will return to the external caller whatever the implementation returns.\n@param implementation Address to delegate." }, "id": 10706, "implemented": true, "kind": "function", "modifiers": [], "name": "_delegate", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10702, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 10701, "mutability": "mutable", "name": "implementation", "nodeType": "VariableDeclaration", "overrides": null, "scope": 10706, "src": "1058:22:64", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 10700, "name": "address", "nodeType": "ElementaryTypeName", "src": "1058:7:64", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1057:24:64" }, "returnParameters": { "id": 10703, "nodeType": "ParameterList", "parameters": [], "src": "1091:0:64" }, "scope": 10725, "src": "1039:743:64", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 10710, "nodeType": "Block", "src": "2033:5:64", "statements": [] }, "documentation": { "id": 10707, "nodeType": "StructuredDocumentation", "src": "1786:202:64", "text": "@dev Function that is run as the first thing in the fallback function.\nCan be redefined in derived contracts to add functionality.\nRedefinitions must call super._willFallback()." }, "id": 10711, "implemented": true, "kind": "function", "modifiers": [], "name": "_willFallback", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10708, "nodeType": "ParameterList", "parameters": [], "src": "2013:2:64" }, "returnParameters": { "id": 10709, "nodeType": "ParameterList", "parameters": [], "src": "2033:0:64" }, "scope": 10725, "src": "1991:47:64", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "body": { "id": 10723, "nodeType": "Block", "src": "2163:60:64", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10715, "name": "_willFallback", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10711, "src": "2169:13:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 10716, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2169:15:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10717, "nodeType": "ExpressionStatement", "src": "2169:15:64" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10719, "name": "_implementation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10698, "src": "2200:15:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$", "typeString": "function () view returns (address)" } }, "id": 10720, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2200:17:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 10718, "name": "_delegate", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10706, "src": "2190:9:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$returns$__$", "typeString": "function (address)" } }, "id": 10721, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2190:28:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10722, "nodeType": "ExpressionStatement", "src": "2190:28:64" } ] }, "documentation": { "id": 10712, "nodeType": "StructuredDocumentation", "src": "2042:88:64", "text": "@dev fallback implementation.\nExtracted to enable manual triggering." }, "id": 10724, "implemented": true, "kind": "function", "modifiers": [], "name": "_fallback", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10713, "nodeType": "ParameterList", "parameters": [], "src": "2151:2:64" }, "returnParameters": { "id": 10714, "nodeType": "ParameterList", "parameters": [], "src": "2163:0:64" }, "scope": 10725, "src": "2133:90:64", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" } ], "scope": 10726, "src": "316:1909:64" } ], "src": "0:2226:64" }, "legacyAST": { "absolutePath": "@iexec/solidity/contracts/Upgradeability/Proxy.sol", "exportedSymbols": { "Proxy": [ 10725 ] }, "id": 10726, "nodeType": "SourceUnit", "nodes": [ { "id": 10675, "literals": [ "solidity", "^", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:64" }, { "abstract": true, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 10676, "nodeType": "StructuredDocumentation", "src": "25:290:64", "text": "@title Proxy\n@dev Implements delegation of calls to other contracts, with proper\nforwarding of return values and bubbling of failures.\nIt defines a fallback function that delegates all calls to the address\nreturned by the abstract _implementation() internal function." }, "fullyImplemented": false, "id": 10725, "linearizedBaseContracts": [ 10725 ], "name": "Proxy", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 10683, "nodeType": "Block", "src": "453:22:64", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10680, "name": "_fallback", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10724, "src": "459:9:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 10681, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "459:11:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10682, "nodeType": "ExpressionStatement", "src": "459:11:64" } ] }, "documentation": { "id": 10677, "nodeType": "StructuredDocumentation", "src": "344:79:64", "text": "@dev Receive function.\nImplemented entirely in `_fallback`." }, "id": 10684, "implemented": true, "kind": "receive", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10678, "nodeType": "ParameterList", "parameters": [], "src": "433:2:64" }, "returnParameters": { "id": 10679, "nodeType": "ParameterList", "parameters": [], "src": "453:0:64" }, "scope": 10725, "src": "426:49:64", "stateMutability": "payable", "virtual": false, "visibility": "external" }, { "body": { "id": 10691, "nodeType": "Block", "src": "590:22:64", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10688, "name": "_fallback", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10724, "src": "596:9:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 10689, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "596:11:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10690, "nodeType": "ExpressionStatement", "src": "596:11:64" } ] }, "documentation": { "id": 10685, "nodeType": "StructuredDocumentation", "src": "479:80:64", "text": "@dev Fallback function.\nImplemented entirely in `_fallback`." }, "id": 10692, "implemented": true, "kind": "fallback", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10686, "nodeType": "ParameterList", "parameters": [], "src": "570:2:64" }, "returnParameters": { "id": 10687, "nodeType": "ParameterList", "parameters": [], "src": "590:0:64" }, "scope": 10725, "src": "562:50:64", "stateMutability": "payable", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 10693, "nodeType": "StructuredDocumentation", "src": "616:62:64", "text": "@return impl The Address of the implementation." }, "id": 10698, "implemented": false, "kind": "function", "modifiers": [], "name": "_implementation", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10694, "nodeType": "ParameterList", "parameters": [], "src": "705:2:64" }, "returnParameters": { "id": 10697, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 10696, "mutability": "mutable", "name": "impl", "nodeType": "VariableDeclaration", "overrides": null, "scope": 10698, "src": "739:12:64", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 10695, "name": "address", "nodeType": "ElementaryTypeName", "src": "739:7:64", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "738:14:64" }, "scope": 10725, "src": "681:72:64", "stateMutability": "view", "virtual": true, "visibility": "internal" }, { "body": { "id": 10705, "nodeType": "Block", "src": "1091:691:64", "statements": [ { "AST": { "nodeType": "YulBlock", "src": "1106:672:64", "statements": [ { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1335:1:64", "type": "", "value": "0" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1338:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "calldatasize", "nodeType": "YulIdentifier", "src": "1341:12:64" }, "nodeType": "YulFunctionCall", "src": "1341:14:64" } ], "functionName": { "name": "calldatacopy", "nodeType": "YulIdentifier", "src": "1322:12:64" }, "nodeType": "YulFunctionCall", "src": "1322:34:64" }, "nodeType": "YulExpressionStatement", "src": "1322:34:64" }, { "nodeType": "YulVariableDeclaration", "src": "1465:74:64", "value": { "arguments": [ { "arguments": [], "functionName": { "name": "gas", "nodeType": "YulIdentifier", "src": "1492:3:64" }, "nodeType": "YulFunctionCall", "src": "1492:5:64" }, { "name": "implementation", "nodeType": "YulIdentifier", "src": "1499:14:64" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1515:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "calldatasize", "nodeType": "YulIdentifier", "src": "1518:12:64" }, "nodeType": "YulFunctionCall", "src": "1518:14:64" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1534:1:64", "type": "", "value": "0" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1537:1:64", "type": "", "value": "0" } ], "functionName": { "name": "delegatecall", "nodeType": "YulIdentifier", "src": "1479:12:64" }, "nodeType": "YulFunctionCall", "src": "1479:60:64" }, "variables": [ { "name": "result", "nodeType": "YulTypedName", "src": "1469:6:64", "type": "" } ] }, { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1595:1:64", "type": "", "value": "0" }, { "kind": "number", "nodeType": "YulLiteral", "src": "1598:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "returndatasize", "nodeType": "YulIdentifier", "src": "1601:14:64" }, "nodeType": "YulFunctionCall", "src": "1601:16:64" } ], "functionName": { "name": "returndatacopy", "nodeType": "YulIdentifier", "src": "1580:14:64" }, "nodeType": "YulFunctionCall", "src": "1580:38:64" }, "nodeType": "YulExpressionStatement", "src": "1580:38:64" }, { "cases": [ { "body": { "nodeType": "YulBlock", "src": "1695:31:64", "statements": [ { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1704:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "returndatasize", "nodeType": "YulIdentifier", "src": "1707:14:64" }, "nodeType": "YulFunctionCall", "src": "1707:16:64" } ], "functionName": { "name": "revert", "nodeType": "YulIdentifier", "src": "1697:6:64" }, "nodeType": "YulFunctionCall", "src": "1697:27:64" }, "nodeType": "YulExpressionStatement", "src": "1697:27:64" } ] }, "nodeType": "YulCase", "src": "1688:38:64", "value": { "kind": "number", "nodeType": "YulLiteral", "src": "1693:1:64", "type": "", "value": "0" } }, { "body": { "nodeType": "YulBlock", "src": "1741:31:64", "statements": [ { "expression": { "arguments": [ { "kind": "number", "nodeType": "YulLiteral", "src": "1750:1:64", "type": "", "value": "0" }, { "arguments": [], "functionName": { "name": "returndatasize", "nodeType": "YulIdentifier", "src": "1753:14:64" }, "nodeType": "YulFunctionCall", "src": "1753:16:64" } ], "functionName": { "name": "return", "nodeType": "YulIdentifier", "src": "1743:6:64" }, "nodeType": "YulFunctionCall", "src": "1743:27:64" }, "nodeType": "YulExpressionStatement", "src": "1743:27:64" } ] }, "nodeType": "YulCase", "src": "1733:39:64", "value": "default" } ], "expression": { "name": "result", "nodeType": "YulIdentifier", "src": "1633:6:64" }, "nodeType": "YulSwitch", "src": "1626:146:64" } ] }, "evmVersion": "istanbul", "externalReferences": [ { "declaration": 10701, "isOffset": false, "isSlot": false, "src": "1499:14:64", "valueSize": 1 } ], "id": 10704, "nodeType": "InlineAssembly", "src": "1097:681:64" } ] }, "documentation": { "id": 10699, "nodeType": "StructuredDocumentation", "src": "757:279:64", "text": "@dev Delegates execution to an implementation contract.\nThis is a low level function that doesn't return to its internal call site.\nIt will return to the external caller whatever the implementation returns.\n@param implementation Address to delegate." }, "id": 10706, "implemented": true, "kind": "function", "modifiers": [], "name": "_delegate", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10702, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 10701, "mutability": "mutable", "name": "implementation", "nodeType": "VariableDeclaration", "overrides": null, "scope": 10706, "src": "1058:22:64", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 10700, "name": "address", "nodeType": "ElementaryTypeName", "src": "1058:7:64", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1057:24:64" }, "returnParameters": { "id": 10703, "nodeType": "ParameterList", "parameters": [], "src": "1091:0:64" }, "scope": 10725, "src": "1039:743:64", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 10710, "nodeType": "Block", "src": "2033:5:64", "statements": [] }, "documentation": { "id": 10707, "nodeType": "StructuredDocumentation", "src": "1786:202:64", "text": "@dev Function that is run as the first thing in the fallback function.\nCan be redefined in derived contracts to add functionality.\nRedefinitions must call super._willFallback()." }, "id": 10711, "implemented": true, "kind": "function", "modifiers": [], "name": "_willFallback", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10708, "nodeType": "ParameterList", "parameters": [], "src": "2013:2:64" }, "returnParameters": { "id": 10709, "nodeType": "ParameterList", "parameters": [], "src": "2033:0:64" }, "scope": 10725, "src": "1991:47:64", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "body": { "id": 10723, "nodeType": "Block", "src": "2163:60:64", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10715, "name": "_willFallback", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10711, "src": "2169:13:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 10716, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2169:15:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10717, "nodeType": "ExpressionStatement", "src": "2169:15:64" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 10719, "name": "_implementation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10698, "src": "2200:15:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_address_$", "typeString": "function () view returns (address)" } }, "id": 10720, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2200:17:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 10718, "name": "_delegate", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10706, "src": "2190:9:64", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$returns$__$", "typeString": "function (address)" } }, "id": 10721, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2190:28:64", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10722, "nodeType": "ExpressionStatement", "src": "2190:28:64" } ] }, "documentation": { "id": 10712, "nodeType": "StructuredDocumentation", "src": "2042:88:64", "text": "@dev fallback implementation.\nExtracted to enable manual triggering." }, "id": 10724, "implemented": true, "kind": "function", "modifiers": [], "name": "_fallback", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 10713, "nodeType": "ParameterList", "parameters": [], "src": "2151:2:64" }, "returnParameters": { "id": 10714, "nodeType": "ParameterList", "parameters": [], "src": "2163:0:64" }, "scope": 10725, "src": "2133:90:64", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" } ], "scope": 10726, "src": "316:1909:64" } ], "src": "0:2226:64" }, "compiler": { "name": "solc", "version": "0.6.6+commit.6c089d02.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.1.0", "updatedAt": "2020-04-21T18:10:34.962Z", "devdoc": { "details": "Implements delegation of calls to other contracts, with proper forwarding of return values and bubbling of failures. It defines a fallback function that delegates all calls to the address returned by the abstract _implementation() internal function.", "methods": {}, "title": "Proxy" }, "userdoc": { "methods": {} } }