@valueswap/v2-periphery

{ "contractName": "Babylonian", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.6.6+commit.6c089d02\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"@valueswap/lib/contracts/libraries/Babylonian.sol\":\"Babylonian\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":999999},\"remappings\":[]},\"sources\":{\"@valueswap/lib/contracts/libraries/Babylonian.sol\":{\"keccak256\":\"0xeb1c2a281a00f4660775f75ccfa1e51fbe1d75f86aeb9d0d297151ecdb900177\",\"urls\":[\"bzz-raw://68515f0265381bddfb1d1356ea10ce4e5784276fc09f197fcdcedfa5c75cc069\",\"dweb:/ipfs/QmXWVVPnuJwRUAu3Qpu1s7Fyc5WPQxmZPczVEe5cJ5wVHZ\"]}},\"version\":1}", "bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220b3ce0e87469566960e090f8f3b377dc77374690818af30f73a5dc23248496b2764736f6c63430006060033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220b3ce0e87469566960e090f8f3b377dc77374690818af30f73a5dc23248496b2764736f6c63430006060033", "immutableReferences": {}, "sourceMap": "210:1371:22:-: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": "210:1371:22:-:0;;;;;;12:1:-1;9;2:12", "source": "// SPDX-License-Identifier: GPL-3.0-or-later\n\npragma solidity >=0.4.0;\n\n// computes square roots using the babylonian method\n// https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method\nlibrary Babylonian {\n // credit for this implementation goes to\n // https://github.com/abdk-consulting/abdk-libraries-solidity/blob/master/ABDKMath64x64.sol#L687\n function sqrt(uint256 x) internal pure returns (uint256) {\n if (x == 0) return 0;\n // this block is equivalent to r = uint256(1) << (BitMath.mostSignificantBit(x) / 2);\n // however that code costs significantly more gas\n uint256 xx = x;\n uint256 r = 1;\n if (xx >= 0x100000000000000000000000000000000) {\n xx >>= 128;\n r <<= 64;\n }\n if (xx >= 0x10000000000000000) {\n xx >>= 64;\n r <<= 32;\n }\n if (xx >= 0x100000000) {\n xx >>= 32;\n r <<= 16;\n }\n if (xx >= 0x10000) {\n xx >>= 16;\n r <<= 8;\n }\n if (xx >= 0x100) {\n xx >>= 8;\n r <<= 4;\n }\n if (xx >= 0x10) {\n xx >>= 4;\n r <<= 2;\n }\n if (xx >= 0x8) {\n r <<= 1;\n }\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1;\n r = (r + x / r) >> 1; // Seven iterations should be enough\n uint256 r1 = x / r;\n return (r < r1 ? r : r1);\n }\n}\n", "sourcePath": "@valueswap/lib/contracts/libraries/Babylonian.sol", "ast": { "absolutePath": "@valueswap/lib/contracts/libraries/Babylonian.sol", "exportedSymbols": { "Babylonian": [ 7751 ] }, "id": 7752, "nodeType": "SourceUnit", "nodes": [ { "id": 7550, "literals": [ "solidity", ">=", "0.4", ".0" ], "nodeType": "PragmaDirective", "src": "46:24:22" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, "fullyImplemented": true, "id": 7751, "linearizedBaseContracts": [ 7751 ], "name": "Babylonian", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 7749, "nodeType": "Block", "src": "439:1140:22", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 7559, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 7557, "name": "x", 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"typeString": "int_const 1" }, "value": "1" }, "nodeType": "VariableDeclarationStatement", "src": "655:13:22" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 7573, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 7571, "name": "xx", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7564, "src": "682:2:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "hexValue": "3078313030303030303030303030303030303030303030303030303030303030303030", "id": 7572, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "688:35:22", "subdenomination": null, "typeDescriptions": { "typeIdentifier": 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