{ "contractName": "Checkpoint", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "uint256", "name": "checkpointId", "type": "uint256" } ], "name": "CheckpointCreated", "type": "event" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.11+commit.5ef660b1\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"checkpointId\",\"type\":\"uint256\"}],\"name\":\"CheckpointCreated\",\"type\":\"event\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/ICT/Checkpoint/Checkpoint.sol\":\"Checkpoint\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/ICT/Checkpoint/Checkpoint.sol\":{\"keccak256\":\"0xece3763697d7adc64207d921125eefa45f1ecf0e66d372a985efa5279b16e7bb\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://d5a3fdc8bd568e92f6f0c8f46bc2e3727911e580f9d3f3625b01af5ef8913710\",\"dweb:/ipfs/QmXXSt5oq8oxYXVHeXGnawCUDgQ1cA7zhsbz4VDYd6FnFN\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/ICT/Checkpoint/CheckpointStorage.sol\":{\"keccak256\":\"0x7e5c553e1ff9d469c2f732f34ea25fa709e2711ff2e2259ff1472bb89208e558\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://4c2f3706e10d710c658700fc26a7be1ee31b2a982f1f7856e559f3b5ca088ea6\",\"dweb:/ipfs/QmTcuAa1M8BqVBKaKubrf7RunMC99uzmmKK1YRWqNFwnpY\"]}},\"version\":1}", "bytecode": "0x6080604052348015600f57600080fd5b50603f80601d6000396000f3fe6080604052600080fdfea2646970667358221220c4411ee59d19ed3e9b40820ad3871432cf2f5aaf51f13b5f83162f94313a7c3564736f6c634300060b0033", "deployedBytecode": "0x6080604052600080fdfea2646970667358221220c4411ee59d19ed3e9b40820ad3871432cf2f5aaf51f13b5f83162f94313a7c3564736f6c634300060b0033", "immutableReferences": {}, "sourceMap": "136:2426:58:-:0;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "136:2426:58:-:0;;;;;", "source": "// \"SPDX-License-Identifier: Apache-2.0\"\npragma solidity 0.6.11;\npragma experimental ABIEncoderV2;\n\nimport \"./CheckpointStorage.sol\";\n\n\ncontract Checkpoint is CheckpointStorage {\n\n // Emit when new checkpoint created\n event CheckpointCreated(uint256 indexed checkpointId);\n\n /**\n * @notice Queries a value at a defined checkpoint\n * @param checkpoints array of Checkpoint objects\n * @param timestamp timestamp to retrieve the value at\n * @return uint256\n */\n function getValueAt(\n Checkpoint[] storage checkpoints,\n uint256 timestamp\n ) \n internal\n view \n returns (uint256)\n {\n // initially return 0\n if (checkpoints.length == 0) return 0;\n\n // Shortcut for the actual value\n if (timestamp >= checkpoints[checkpoints.length - 1].timestamp)\n return checkpoints[checkpoints.length - 1].value;\n if (timestamp < checkpoints[0].timestamp) return 0;\n\n // Binary search of the value in the array\n uint256 min = 0;\n uint256 max = checkpoints.length - 1;\n while (max > min) {\n uint256 mid = (max + min + 1) / 2;\n if (checkpoints[mid].timestamp <= timestamp) {\n min = mid;\n } else {\n max = mid - 1;\n }\n }\n return checkpoints[min].value;\n }\n\n /**\n * @notice Create a new checkpoint for a value if\n * there does not exist a checkpoint for the current block timestamp,\n * otherwise updates the value of the current checkpoint.\n * @param checkpoints Checkpointed values\n * @param value Value to be updated\n */ \n function updateValueAtNow(\n Checkpoint[] storage checkpoints,\n uint value\n )\n internal\n {\n // create a new checkpoint if:\n // - there are no checkpoints\n // - the current block has a greater timestamp than the last checkpoint\n // otherwise update value at current checkpoint\n if (\n checkpoints.length == 0\n || (block.timestamp > checkpoints[checkpoints.length - 1].timestamp)\n ) {\n // create checkpoint with value\n checkpoints.push(Checkpoint({ timestamp: uint128(block.timestamp), value: value }));\n\n emit CheckpointCreated(checkpoints.length - 1);\n \n } else {\n // update value at current checkpoint\n Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length - 1];\n oldCheckPoint.value = value;\n }\n }\n}", "sourcePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/ICT/Checkpoint/Checkpoint.sol", "ast": { "absolutePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/ICT/Checkpoint/Checkpoint.sol", "exportedSymbols": { "Checkpoint": [ 19984 ] }, "id": 19985, "license": "Apache-2.0", "nodeType": "SourceUnit", "nodes": [ { "id": 19814, "literals": [ "solidity", "0.6", ".11" ], "nodeType": "PragmaDirective", "src": "41:23:58" }, { "id": 19815, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "65:33:58" }, { "absolutePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/ICT/Checkpoint/CheckpointStorage.sol", "file": "./CheckpointStorage.sol", "id": 19816, "nodeType": "ImportDirective", "scope": 19985, "sourceUnit": 19993, "src": "100:33:58", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 19817, "name": "CheckpointStorage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 19992, "src": "159:17:58", "typeDescriptions": { "typeIdentifier": "t_contract$_CheckpointStorage_$19992", "typeString": "contract CheckpointStorage" } }, "id": 19818, "nodeType": "InheritanceSpecifier", "src": "159:17:58" } ], "contractDependencies": [ 19992 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 19984, "linearizedBaseContracts": [ 19984, 19992 ], "name": "Checkpoint", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": null, "id": 19822, "name": "CheckpointCreated", "nodeType": "EventDefinition", "parameters": { "id": 19821, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 19820, "indexed": true, "mutability": "mutable", "name": "checkpointId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 19822, "src": "248:28:58", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 19819, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "248:7:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "247:30:58" }, "src": "224:54:58" }, { "body": { "id": 19918, "nodeType": "Block", "src": "648:719:58", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19836, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19833, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "692:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19834, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "692:18:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 19835, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "714:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "692:23:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 19839, "nodeType": "IfStatement", "src": "688:37:58", "trueBody": { "expression": { "argumentTypes": null, "hexValue": "30", "id": 19837, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "724:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "functionReturnParameters": 19832, "id": 19838, "nodeType": "Return", "src": "717:8:58" } }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19848, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 19840, "name": "timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19828, "src": "781:9:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 19841, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "794:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19846, "indexExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19845, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19842, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "806:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19843, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "806:18:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 19844, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "827:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "806:22:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "794:35:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "id": 19847, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": 19988, "src": "794:45:58", "typeDescriptions": { "typeIdentifier": "t_uint128", "typeString": "uint128" } }, "src": "781:58:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 19857, "nodeType": "IfStatement", "src": "777:124:58", "trueBody": { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 19849, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "860:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19854, "indexExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19853, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19850, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "872:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19851, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "872:18:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 19852, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "893:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "872:22:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "860:35:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "id": 19855, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "value", "nodeType": "MemberAccess", "referencedDeclaration": 19990, "src": "860:41:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 19832, "id": 19856, "nodeType": "Return", "src": "853:48:58" } }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19863, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 19858, "name": "timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19828, "src": "915:9:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 19859, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "927:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19861, "indexExpression": { "argumentTypes": null, "hexValue": "30", "id": 19860, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "939:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "927:14:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "id": 19862, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": 19988, "src": "927:24:58", "typeDescriptions": { "typeIdentifier": "t_uint128", "typeString": "uint128" } }, "src": "915:36:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 19866, "nodeType": "IfStatement", "src": "911:50:58", "trueBody": { "expression": { "argumentTypes": null, "hexValue": "30", "id": 19864, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "960:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "functionReturnParameters": 19832, "id": 19865, "nodeType": "Return", "src": "953:8:58" } }, { "assignments": [ 19868 ], "declarations": [ { "constant": false, "id": 19868, "mutability": "mutable", "name": "min", "nodeType": "VariableDeclaration", "overrides": null, "scope": 19918, "src": "1023:11:58", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 19867, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1023:7:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 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"ElementaryTypeName", "src": "1126:7:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 19891, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19890, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19887, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19885, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 19883, "name": "max", "nodeType": "Identifier", "overloadedDeclarations": [], 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"typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 19888, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "1140:15:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "/", "rightExpression": { "argumentTypes": null, "hexValue": "32", "id": 19889, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1158:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "src": "1140:19:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "1126:33:58" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, 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"typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "id": 19895, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": 19988, "src": "1177:26:58", "typeDescriptions": { "typeIdentifier": "t_uint128", "typeString": "uint128" } }, "nodeType": "BinaryOperation", "operator": "<=", "rightExpression": { "argumentTypes": null, "id": 19896, "name": "timestamp", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19828, "src": "1207:9:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1177:39:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 19909, "nodeType": "Block", "src": "1266:46:58", "statements": [ { "expression": { "argumentTypes": null, "id": 19907, "isConstant": false, "isLValue": 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true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1296:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1290:7:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1284:13:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 19908, "nodeType": "ExpressionStatement", "src": "1284:13:58" } ] }, "id": 19910, "nodeType": "IfStatement", "src": "1173:139:58", "trueBody": { "id": 19902, "nodeType": "Block", "src": "1218:42:58", "statements": [ { "expression": { "argumentTypes": null, "id": 19900, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 19898, "name": "min", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19868, "src": "1236:3:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 19899, "name": "mid", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19882, "src": "1242:3:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1236:9:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 19901, "nodeType": "ExpressionStatement", "src": "1236:9:58" } ] } } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19880, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 19878, "name": "max", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19872, "src": "1101:3:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "id": 19879, "name": "min", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19868, "src": "1107:3:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1101:9:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 19912, "nodeType": "WhileStatement", "src": "1094:228:58" }, { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 19913, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19826, "src": "1338:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19915, "indexExpression": { "argumentTypes": null, "id": 19914, "name": "min", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19868, "src": "1350:3:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1338:16:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "id": 19916, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "value", "nodeType": "MemberAccess", "referencedDeclaration": 19990, "src": "1338:22:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 19832, "id": 19917, "nodeType": "Return", "src": "1331:29:58" } ] }, "documentation": { "id": 19823, "nodeType": "StructuredDocumentation", "src": "284:202:58", "text": " @notice Queries a value at a defined checkpoint\n @param checkpoints array of Checkpoint objects\n @param timestamp timestamp to retrieve the value at\n @return uint256" }, "id": 19919, "implemented": true, "kind": "function", "modifiers": [], "name": "getValueAt", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 19829, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 19826, "mutability": "mutable", "name": "checkpoints", "nodeType": "VariableDeclaration", "overrides": null, "scope": 19919, "src": "520:32:58", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint[]" }, "typeName": { "baseType": { "contractScope": null, "id": 19824, "name": "Checkpoint", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 19991, "src": "520:10:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint" } }, "id": 19825, "length": null, "nodeType": "ArrayTypeName", "src": "520:12:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint[]" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 19828, "mutability": "mutable", "name": "timestamp", "nodeType": "VariableDeclaration", "overrides": null, "scope": 19919, "src": "562:17:58", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 19827, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "562:7:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "510:75:58" }, "returnParameters": { "id": 19832, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 19831, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 19919, "src": "635:7:58", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 19830, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "635:7:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "634:9:58" }, "scope": 19984, "src": "491:876:58", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 19982, "nodeType": "Block", "src": "1781:779:58", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 19943, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19931, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19928, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19923, "src": "2021:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19929, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2021:18:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 19930, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2043:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "2021:23:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19941, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19932, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -4, "src": "2061:5:58", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 19933, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2061:15:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 19934, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19923, "src": "2079:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19939, "indexExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19938, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19935, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19923, "src": "2091:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19936, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2091:18:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 19937, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2112:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "2091:22:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2079:35:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "id": 19940, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": 19988, "src": "2079:45:58", "typeDescriptions": { "typeIdentifier": "t_uint128", "typeString": "uint128" } }, "src": "2061:63:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 19942, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "2060:65:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "2021:104:58", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 19980, "nodeType": "Block", "src": "2368:186:58", "statements": [ { "assignments": [ 19966 ], "declarations": [ { "constant": false, "id": 19966, "mutability": "mutable", "name": "oldCheckPoint", "nodeType": "VariableDeclaration", "overrides": null, "scope": 19980, "src": "2432:32:58", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint" }, "typeName": { "contractScope": null, "id": 19965, "name": "Checkpoint", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 19991, "src": "2432:10:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint" } }, "value": null, "visibility": "internal" } ], "id": 19973, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 19967, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19923, "src": "2467:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19972, "indexExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 19971, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19968, "name": "checkpoints", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19923, "src": "2479:11:58", "typeDescriptions": { "typeIdentifier": "t_array$_t_struct$_Checkpoint_$19991_storage_$dyn_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage ref[] storage pointer" } }, "id": 19969, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2479:18:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 19970, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2500:1:58", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "2479:22:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2467:35:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage", "typeString": "struct CheckpointStorage.Checkpoint storage ref" } }, "nodeType": "VariableDeclarationStatement", "src": "2432:70:58" }, { "expression": { "argumentTypes": null, "id": 19978, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19974, "name": "oldCheckPoint", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19966, "src": "2516:13:58", "typeDescriptions": { "typeIdentifier": "t_struct$_Checkpoint_$19991_storage_ptr", "typeString": "struct CheckpointStorage.Checkpoint storage pointer" } }, "id": 19976, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "value", "nodeType": "MemberAccess", "referencedDeclaration": 19990, "src": "2516:19:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 19977, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 19925, "src": "2538:5:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2516:27:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 19979, "nodeType": "ExpressionStatement", "src": "2516:27:58" } ] }, "id": 19981, "nodeType": "IfStatement", "src": "2004:550:58", "trueBody": { "id": 19964, "nodeType": "Block", "src": "2136:226:58", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 19950, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -4, "src": "2243:5:58", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 19951, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2243:15:58", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 19949, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2235:7:58", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint128_$", "typeString": "type(uint128)" }, "typeName": { "id": 19948, "name": "uint128", "nodeType": "ElementaryTypeName", "src": "2235:7:58", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, 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