{ "contractName": "TickBitmap", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.6.8+commit.0bbfe453\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"details\":\"The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word.\",\"methods\":{},\"title\":\"Packed tick initialized state library\"},\"userdoc\":{\"methods\":{},\"notice\":\"Stores a packed mapping of tick index to its initialized state\"}},\"settings\":{\"compilationTarget\":{\"project:/contracts/interfaces/uniswap/TickBitmap.sol\":\"TickBitmap\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":10000},\"remappings\":[]},\"sources\":{\"project:/contracts/interfaces/uniswap/BitMath.sol\":{\"keccak256\":\"0x82e425066110aac05ed8a9fc90f9ee85142b6f434769447e49d4438a8d9fcd82\",\"license\":\"GPL-2.0-or-later\",\"urls\":[\"bzz-raw://77a97078bc992c18c59cb61e07fa4632c8a26b6babf00f3b16eabb5dcaa953b4\",\"dweb:/ipfs/QmTj15ufLWk6AxedSVXBcLp5cYf2DCJAeDi94cVemCkm54\"]},\"project:/contracts/interfaces/uniswap/IUniswapV3PoolState.sol\":{\"keccak256\":\"0x852dc1f5df7dcf7f11e7bb3eed79f0cea72ad4b25f6a9d2c35aafb48925fd49f\",\"license\":\"GPL-2.0-or-later\",\"urls\":[\"bzz-raw://ed63907c38ff36b0e22bc9ffc53e791ea74f0d4f0e7c257fdfb5aaf8825b1f0f\",\"dweb:/ipfs/QmSQrckghEjs6HVsA5GVgpNpZWvTXMY5eQLF7cN6deFeEg\"]},\"project:/contracts/interfaces/uniswap/TickBitmap.sol\":{\"keccak256\":\"0x9bfc4ae1794f3fecb6a3c8817500dcdd4a05689c654e1075e9dd1e6fd653a685\",\"license\":\"BUSL-1.1\",\"urls\":[\"bzz-raw://7658bd80a3c3812fd92bb169842743c634989ede97366a418663067fc54f6a7b\",\"dweb:/ipfs/QmZLZNFhSdXQ3NC2Rz38668TCyrGXMysbGR33CrszaTbAW\"]}},\"version\":1}", "bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220893719093f49c16089a6c57c67bcb1ddb89094c388ad8dd12b9373df1349251f64736f6c63430006080033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220893719093f49c16089a6c57c67bcb1ddb89094c388ad8dd12b9373df1349251f64736f6c63430006080033", "immutableReferences": {}, "sourceMap": "367:3788:41:-:0;;132:2:-1;166:7;155:9;146:7;137:37;255:7;249:14;246:1;241:23;235:4;232:33;222:2;;269:9;222:2;293:9;290:1;283:20;323:4;314:7;306:22;347:7;338;331:24", "deployedSourceMap": "367:3788:41:-:0;;;;;;12:1:-1;9;2:12", "source": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './BitMath.sol';\nimport './IUniswapV3PoolState.sol';\n\n/// @title Packed tick initialized state library\n/// @notice Stores a packed mapping of tick index to its initialized state\n/// @dev The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word.\nlibrary TickBitmap {\n /// @notice Computes the position in the mapping where the initialized bit for a tick lives\n /// @param tick The tick for which to compute the position\n /// @return wordPos The key in the mapping containing the word in which the bit is stored\n /// @return bitPos The bit position in the word where the flag is stored\n function position(int24 tick) private pure returns (int16 wordPos, uint8 bitPos) {\n wordPos = int16(tick >> 8);\n bitPos = uint8(tick % 256);\n }\n\n /// @notice Flips the initialized state for a given tick from false to true, or vice versa\n /// @param self The mapping in which to flip the tick\n /// @param tick The tick to flip\n /// @param tickSpacing The spacing between usable ticks\n function flipTick(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing\n ) internal {\n require(tick % tickSpacing == 0); // ensure that the tick is spaced\n (int16 wordPos, uint8 bitPos) = position(tick / tickSpacing);\n uint256 mask = 1 << bitPos;\n self[wordPos] ^= mask;\n }\n\n /// @notice Returns the next initialized tick contained in the same word (or adjacent word) as the tick that is either\n /// to the left (less than or equal to) or right (greater than) of the given tick\n /// @param pool The mapping in which to compute the next initialized tick\n /// @param tick The starting tick\n /// @param tickSpacing The spacing between usable ticks\n /// @param lte Whether to search for the next initialized tick to the left (less than or equal to the starting tick)\n /// @return next The next initialized or uninitialized tick up to 256 ticks away from the current tick\n /// @return initialized Whether the next tick is initialized, as the function only searches within up to 256 ticks\n function nextInitializedTickWithinOneWord(\n IUniswapV3PoolState pool,\n int24 tick,\n int24 tickSpacing,\n bool lte\n ) internal view returns (int24 next, bool initialized) {\n int24 compressed = tick / tickSpacing;\n if (tick < 0 && tick % tickSpacing != 0) compressed--; // round towards negative infinity\n\n if (lte) {\n (int16 wordPos, uint8 bitPos) = position(compressed);\n // all the 1s at or to the right of the current bitPos\n uint256 mask = (1 << bitPos) - 1 + (1 << bitPos);\n uint256 masked = pool.tickBitmap(wordPos) & mask;\n\n // if there are no initialized ticks to the right of or at the current tick, return rightmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed - int24(bitPos - BitMath.mostSignificantBit(masked))) * tickSpacing\n : (compressed - int24(bitPos)) * tickSpacing;\n } else {\n // start from the word of the next tick, since the current tick state doesn't matter\n (int16 wordPos, uint8 bitPos) = position(compressed + 1);\n // all the 1s at or to the left of the bitPos\n uint256 mask = ~((1 << bitPos) - 1);\n uint256 masked = pool.tickBitmap(wordPos) & mask;\n\n // if there are no initialized ticks to the left of the current tick, return leftmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed + 1 + int24(BitMath.leastSignificantBit(masked) - bitPos)) * tickSpacing\n : (compressed + 1 + int24(type(uint8).max - bitPos)) * tickSpacing;\n }\n }\n}\n", "sourcePath": "/home/thezviad_gmail_com/src/swappa/contracts/interfaces/uniswap/TickBitmap.sol", "ast": { "absolutePath": "project:/contracts/interfaces/uniswap/TickBitmap.sol", "exportedSymbols": { "TickBitmap": [ 4365 ] }, "id": 4366, "license": "BUSL-1.1", "nodeType": "SourceUnit", "nodes": [ { "id": 4110, "literals": [ "solidity", ">=", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "37:24:41" }, { "absolutePath": "project:/contracts/interfaces/uniswap/BitMath.sol", "file": "./BitMath.sol", "id": 4111, "nodeType": "ImportDirective", "scope": 4366, "sourceUnit": 2163, "src": "63:23:41", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/interfaces/uniswap/IUniswapV3PoolState.sol", "file": "./IUniswapV3PoolState.sol", "id": 4112, "nodeType": "ImportDirective", "scope": 4366, "sourceUnit": 3066, "src": "87:35:41", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 4113, "nodeType": "StructuredDocumentation", "src": "124:243:41", "text": "@title Packed tick initialized state library\n @notice Stores a packed mapping of tick index to its initialized state\n @dev The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word." }, "fullyImplemented": true, "id": 4365, "linearizedBaseContracts": [ 4365 ], "name": "TickBitmap", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 4141, "nodeType": "Block", "src": "803:79:41", "statements": [ { "expression": { "argumentTypes": null, "id": 4130, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4123, "name": "wordPos", "nodeType": "Identifier", "overloadedDeclarations": 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"typeDescriptions": { "typeIdentifier": "t_int24", "typeString": "int24" } }, "typeDescriptions": { "typeIdentifier": "t_int24", "typeString": "int24" } }, "src": "3128:177:41", "typeDescriptions": { "typeIdentifier": "t_int24", "typeString": "int24" } }, "id": 4285, "nodeType": "ExpressionStatement", "src": "3128:177:41" } ] } } ] }, "documentation": { "id": 4186, "nodeType": "StructuredDocumentation", "src": "1492:727:41", "text": "@notice Returns the next initialized tick contained in the same word (or adjacent word) as the tick that is either\n to the left (less than or equal to) or right (greater than) of the given tick\n @param pool The mapping in which to compute the next initialized tick\n @param tick The starting tick\n @param tickSpacing The spacing between usable ticks\n @param lte Whether to search for the next initialized tick to the left (less than or equal to the starting tick)\n @return next The next initialized or uninitialized tick up to 256 ticks away from the 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"TickBitmap", "scope": 4366 }, "children": [ { "attributes": { "text": "@title Packed tick initialized state library\n @notice Stores a packed mapping of tick index to its initialized state\n @dev The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word." }, "id": 4113, "name": "StructuredDocumentation", "src": "124:243:41" }, { "attributes": { "implemented": true, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "position", "overrides": null, "scope": 4365, "stateMutability": "pure", "virtual": false, "visibility": "private" }, "children": [ { "attributes": { "text": "@notice Computes the position in the mapping where the initialized bit for a tick lives\n @param tick The tick for which to compute the position\n @return wordPos The key in the mapping containing the word in which the bit is stored\n @return bitPos The bit position in the word where the flag is stored" }, "id": 4114, "name": 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tick from false to true, or vice versa\n @param self The mapping in which to flip the tick\n @param tick The tick to flip\n @param tickSpacing The spacing between usable ticks" }, "id": 4143, "name": "StructuredDocumentation", "src": "888:245:41" }, { "children": [ { "attributes": { "constant": false, "mutability": "mutable", "name": "self", "overrides": null, "scope": 4185, "stateVariable": false, "storageLocation": "storage", "type": "mapping(int16 => uint256)", "value": null, "visibility": "internal" }, "children": [ { "attributes": { "type": "mapping(int16 => uint256)" }, "children": [ { "attributes": { "name": "int16", "type": "int16" }, "id": 4144, "name": "ElementaryTypeName", "src": "1173:5:41" }, { "attributes": { "name": "uint256", "type": "uint256" }, "id": 4145, "name": "ElementaryTypeName", "src": "1182:7:41" } ], "id": 4146, "name": "Mapping", "src": "1165:25:41" } ], "id": 4147, "name": "VariableDeclaration", "src": "1165:38:41" }, { "attributes": { "constant": false, 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