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"2023:88:72", "statements": [ { "expression": { "id": 45199, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 45191, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45155, "src": "2041:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "arguments": [ { "id": 45195, "name": "_next", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45182, "src": "2079:5:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "id": 45196, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45155, "src": "2086:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", 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"typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 45192, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -8, "src": "2052:9:72", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 45198, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2052:44:72", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "2041:55:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45200, "nodeType": "ExpressionStatement", "src": "2041:55:72" } ] } } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 45168, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 45166, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45163, "src": "1873:1:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "id": 45167, "name": "TREE_DEPTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45053, "src": "1877:10:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1873:14:72", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 45217, "initializationExpression": { "assignments": [ 45163 ], "declarations": [ { "constant": false, "id": 45163, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "scope": 45217, "src": "1858:9:72", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 45162, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1858:7:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 45165, "initialValue": { "hexValue": "30", "id": 45164, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1870:1:72", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "1858:13:72" }, "loopExpression": { "expression": { "id": 45170, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "1889:3:72", "subExpression": { "id": 45169, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45163, "src": "1889:1:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 45171, "nodeType": "ExpressionStatement", "src": "1889:3:72" }, "nodeType": "ForStatement", "src": "1853:367:72" } ] }, "documentation": { "id": 45146, "nodeType": "StructuredDocumentation", "src": "1453:200:72", "text": " @notice Calculates and returns`_tree`'s current root given array of zero\n hashes\n @param _zeroes Array of zero hashes\n @return _current Calculated root of `_tree`*" }, "implemented": true, "kind": "function", "modifiers": [], "name": "rootWithCtx", "parameters": { "id": 45153, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 45148, "mutability": "mutable", "name": "_tree", "nodeType": "VariableDeclaration", "scope": 45219, "src": "1679:18:72", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": 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"referencedDeclaration": 45053, "src": "1707:10:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "ArrayTypeName", "src": "1699:19:72", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_storage_ptr", "typeString": "bytes32[32]" } }, "visibility": "internal" } ], "src": "1678:56:72" }, "returnParameters": { "id": 45156, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 45155, "mutability": "mutable", "name": "_current", "nodeType": "VariableDeclaration", "scope": 45219, "src": "1782:16:72", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 45154, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1782:7:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "visibility": "internal" } ], "src": "1781:18:72" }, "scope": 45604, "stateMutability": "view", 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"lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2395:12:72", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32] memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_Tree_$45067_storage_ptr", "typeString": "struct MerkleLib.Tree storage pointer" }, { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32] memory" } ], "id": 45227, "name": "rootWithCtx", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45219, "src": "2376:11:72", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_struct$_Tree_$45067_storage_ptr_$_t_array$_t_bytes32_$32_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (struct MerkleLib.Tree storage pointer,bytes32[32] memory) view returns (bytes32)" } }, "id": 45231, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", 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"nodeType": "ExpressionStatement", "src": "2756:16:72" }, { "expression": { "id": 45276, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 45272, "name": "_zeroes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45240, "src": "2782:7:72", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32] memory" } }, "id": 45274, "indexExpression": { "hexValue": "35", "id": 45273, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2790:1:72", "typeDescriptions": { "typeIdentifier": "t_rational_5_by_1", "typeString": "int_const 5" }, "value": "5" }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "2782:10:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, 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45421, "nodeType": "ExpressionStatement", "src": "3444:18:72" }, { "expression": { "id": 45426, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 45422, "name": "_zeroes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45240, "src": "3472:7:72", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32] memory" } }, "id": 45424, "indexExpression": { "hexValue": "3330", "id": 45423, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3480:2:72", "typeDescriptions": { "typeIdentifier": "t_rational_30_by_1", "typeString": "int_const 30" }, "value": "30" }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3472:11:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 45425, "name": "Z_30", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45600, "src": "3486:4:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3472:18:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45427, "nodeType": "ExpressionStatement", "src": "3472:18:72" }, { "expression": { "id": 45432, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 45428, "name": "_zeroes", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45240, "src": "3500:7:72", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32] memory" } }, "id": 45430, "indexExpression": { "hexValue": "3331", "id": 45429, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3508:2:72", "typeDescriptions": { "typeIdentifier": "t_rational_31_by_1", "typeString": "int_const 31" }, "value": "31" }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3500:11:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 45431, "name": "Z_31", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45603, "src": "3514:4:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "3500:18:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45433, "nodeType": "ExpressionStatement", "src": "3500:18:72" } ] }, "documentation": { "id": 45235, "nodeType": "StructuredDocumentation", "src": "2421:107:72", "text": "@notice Returns array of TREE_DEPTH zero hashes\n @return _zeroes Array of TREE_DEPTH zero hashes" }, "implemented": true, "kind": "function", "modifiers": [], "name": "zeroHashes", "parameters": { "id": 45236, "nodeType": "ParameterList", "parameters": [], "src": "2552:2:72" }, "returnParameters": { "id": 45241, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 45240, "mutability": "mutable", "name": "_zeroes", "nodeType": "VariableDeclaration", "scope": 45435, "src": "2602:34:72", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32]" }, "typeName": { "baseType": { "id": 45237, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "2602:7:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45239, "length": { "id": 45238, "name": "TREE_DEPTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45053, "src": "2610:10:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "ArrayTypeName", "src": "2602:19:72", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_storage_ptr", "typeString": "bytes32[32]" } }, "visibility": "internal" } ], "src": "2601:36:72" }, "scope": 45604, "stateMutability": "pure", "virtual": false, "visibility": "internal" }, { "id": 45507, "nodeType": "FunctionDefinition", "src": "3852:558:72", "body": { "id": 45506, "nodeType": "Block", "src": "4010:400:72", "statements": [ { "expression": { "id": 45451, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 45449, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45447, "src": "4020:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 45450, "name": "_item", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45438, "src": "4031:5:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4020:16:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45452, "nodeType": "ExpressionStatement", "src": "4020:16:72" }, { "body": { "id": 45504, "nodeType": "Block", "src": "4088:316:72", "statements": [ { "assignments": [ 45464 ], "declarations": [ { "constant": false, "id": 45464, "mutability": "mutable", "name": "_ithBit", "nodeType": "VariableDeclaration", "scope": 45504, "src": "4102:15:72", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 45463, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4102:7:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 45471, "initialValue": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 45470, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "components": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 45467, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 45465, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45444, "src": "4121:6:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">>", "rightExpression": { "id": 45466, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45454, "src": "4131:1:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4121:11:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 45468, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "4120:13:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "&", "rightExpression": { "hexValue": "30783031", "id": 45469, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4136:4:72", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "0x01" }, "src": "4120:20:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4102:38:72" }, { "assignments": [ 45473 ], "declarations": [ { "constant": false, "id": 45473, "mutability": "mutable", "name": "_next", "nodeType": "VariableDeclaration", "scope": 45504, "src": "4154:13:72", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 45472, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "4154:7:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "visibility": "internal" } ], "id": 45477, "initialValue": { "baseExpression": { "id": 45474, "name": "_branch", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45442, "src": "4170:7:72", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32] memory" } }, "id": 45476, "indexExpression": { "id": 45475, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45454, "src": "4178:1:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4170:10:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "4154:26:72" }, { "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 45480, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 45478, "name": "_ithBit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45464, "src": "4198:7:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "hexValue": "31", "id": 45479, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4209:1:72", "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "4198:12:72", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 45502, "nodeType": "Block", "src": "4306:88:72", "statements": [ { "expression": { "id": 45500, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 45492, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45447, "src": "4324:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "arguments": [ { "id": 45496, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45447, "src": "4362:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "id": 45497, "name": "_next", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45473, "src": "4372:5:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "id": 45494, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -1, "src": "4345:3:72", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 45495, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "src": "4345:16:72", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 45498, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4345:33:72", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 45493, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -8, "src": "4335:9:72", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 45499, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4335:44:72", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4324:55:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45501, "nodeType": "ExpressionStatement", "src": "4324:55:72" } ] }, "id": 45503, "nodeType": "IfStatement", "src": "4194:200:72", "trueBody": { "id": 45491, "nodeType": "Block", "src": "4212:88:72", "statements": [ { "expression": { "id": 45489, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 45481, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45447, "src": "4230:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "arguments": [ { "id": 45485, "name": "_next", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45473, "src": "4268:5:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "id": 45486, "name": "_current", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45447, "src": "4275:8:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "id": 45483, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -1, "src": "4251:3:72", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 45484, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "src": "4251:16:72", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 45487, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4251:33:72", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 45482, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -8, "src": "4241:9:72", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 45488, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4241:44:72", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "4230:55:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45490, "nodeType": "ExpressionStatement", "src": "4230:55:72" } ] } } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 45459, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 45457, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45454, "src": "4067:1:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "id": 45458, "name": "TREE_DEPTH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45053, "src": "4071:10:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4067:14:72", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 45505, "initializationExpression": { "assignments": [ 45454 ], "declarations": [ { "constant": false, "id": 45454, "mutability": "mutable", "name": "i", "nodeType": "VariableDeclaration", "scope": 45505, "src": "4052:9:72", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 45453, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4052:7:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 45456, "initialValue": { "hexValue": "30", "id": 45455, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4064:1:72", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "4052:13:72" }, "loopExpression": { "expression": { "id": 45461, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "4083:3:72", "subExpression": { "id": 45460, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 45454, "src": "4083:1:72", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 45462, "nodeType": "ExpressionStatement", "src": "4083:3:72" }, "nodeType": "ForStatement", "src": "4047:357:72" } ] }, "documentation": { "id": 45436, "nodeType": "StructuredDocumentation", "src": "3531:316:72", "text": " @notice Calculates and returns the merkle root for the given leaf\n `_item`, a merkle branch, and the index of `_item` in the tree.\n @param _item Merkle leaf\n @param _branch Merkle proof\n @param _index Index of `_item` in tree\n @return _current Calculated merkle root*" }, "implemented": true, "kind": "function", "modifiers": [], "name": "branchRoot", "parameters": { "id": 45445, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 45438, "mutability": "mutable", "name": "_item", "nodeType": "VariableDeclaration", "scope": 45507, "src": "3881:13:72", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 45437, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "3881:7:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "visibility": "internal" }, { "constant": false, "id": 45442, "mutability": "mutable", "name": "_branch", "nodeType": "VariableDeclaration", "scope": 45507, "src": "3904:34:72", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes32_$32_memory_ptr", "typeString": "bytes32[32]" }, "typeName": { "baseType": { "id": 45439, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "3904:7:72", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 45441, "length": { "id": 45440, "name": "TREE_DEPTH", 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