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  1. {"ast":null,"code":"\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = createGenerateClassName;\n\nvar _warning = _interopRequireDefault(require(\"warning\"));\n\nvar escapeRegex = /([[\\].#*$><+~=|^:(),\"'`\\s])/g;\n\nfunction safePrefix(classNamePrefix) {\n var prefix = String(classNamePrefix);\n process.env.NODE_ENV !== \"production\" ? (0, _warning.default)(prefix.length < 256, \"Material-UI: the class name prefix is too long: \".concat(prefix, \".\")) : void 0; // Sanitize the string as will be used to prefix the generated class name.\n\n return prefix.replace(escapeRegex, '-');\n} // Returns a function which generates unique class names based on counters.\n// When new generator function is created, rule counter is reset.\n// We need to reset the rule counter for SSR for each request.\n//\n// It's inspired by\n// https://github.com/cssinjs/jss/blob/4e6a05dd3f7b6572fdd3ab216861d9e446c20331/src/utils/createGenerateClassName.js\n\n\nfunction createGenerateClassName() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var _options$dangerouslyU = options.dangerouslyUseGlobalCSS,\n dangerouslyUseGlobalCSS = _options$dangerouslyU === void 0 ? false : _options$dangerouslyU,\n _options$productionPr = options.productionPrefix,\n productionPrefix = _options$productionPr === void 0 ? 'jss' : _options$productionPr,\n _options$seed = options.seed,\n seed = _options$seed === void 0 ? '' : _options$seed;\n var ruleCounter = 0;\n return function (rule, styleSheet) {\n ruleCounter += 1;\n process.env.NODE_ENV !== \"production\" ? (0, _warning.default)(ruleCounter < 1e10, ['Material-UI: you might have a memory leak.', 'The ruleCounter is not supposed to grow that much.'].join('')) : void 0;\n\n if (dangerouslyUseGlobalCSS && styleSheet && styleSheet.options.name) {\n return \"\".concat(safePrefix(styleSheet.options.name), \"-\").concat(rule.key);\n }\n\n if (process.env.NODE_ENV === 'production') {\n return \"\".concat(productionPrefix).concat(seed).concat(ruleCounter);\n } // Help with debuggability.\n\n\n if (styleSheet && styleSheet.options.classNamePrefix) {\n return \"\".concat(safePrefix(styleSheet.options.classNamePrefix), \"-\").concat(rule.key, \"-\").concat(seed).concat(ruleCounter);\n }\n\n return \"\".concat(rule.key, \"-\").concat(seed).concat(ruleCounter);\n };\n}","map":null,"metadata":{},"sourceType":"script"}