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- {"ast":null,"code":"\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = void 0;\nvar _rng = _interopRequireDefault(require(\"./rng.js\"));\nvar _stringify = require(\"./stringify.js\");\nfunction _interopRequireDefault(e) {\n return e && e.__esModule ? e : {\n default: e\n };\n}\n// **`v1()` - Generate time-based UUID**\n//\n// Inspired by https://github.com/LiosK/UUID.js\n// and http://docs.python.org/library/uuid.html\n\nvar _nodeId;\nvar _clockseq;\n\n// Previous uuid creation time\nvar _lastMSecs = 0;\nvar _lastNSecs = 0;\n\n// See https://github.com/uuidjs/uuid for API details\nfunction v1(options, buf, offset) {\n var i = buf && offset || 0;\n var b = buf || new Array(16);\n options = options || {};\n var node = options.node;\n var clockseq = options.clockseq;\n\n // v1 only: Use cached `node` and `clockseq` values\n if (!options._v6) {\n if (!node) {\n node = _nodeId;\n }\n if (clockseq == null) {\n clockseq = _clockseq;\n }\n }\n\n // Handle cases where we need entropy. We do this lazily to minimize issues\n // related to insufficient system entropy. See #189\n if (node == null || clockseq == null) {\n var seedBytes = options.random || (options.rng || _rng.default)();\n\n // Randomize node\n if (node == null) {\n node = [seedBytes[0], seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]];\n\n // v1 only: cache node value for reuse\n if (!_nodeId && !options._v6) {\n // per RFC4122 4.5: Set MAC multicast bit (v1 only)\n node[0] |= 0x01; // Set multicast bit\n\n _nodeId = node;\n }\n }\n\n // Randomize clockseq\n if (clockseq == null) {\n // Per 4.2.2, randomize (14 bit) clockseq\n clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff;\n if (_clockseq === undefined && !options._v6) {\n _clockseq = clockseq;\n }\n }\n }\n\n // v1 & v6 timestamps are 100 nano-second units since the Gregorian epoch,\n // (1582-10-15 00:00). 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