{"version":3,"file":"initUnique.js","sources":["../../../../../src/metrics/web-vitals/lib/initUnique.ts"],"sourcesContent":["/*\n * Copyright 2024 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     https://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nconst instanceMap: WeakMap<object, unknown> = new WeakMap();\n\n/**\n * A function that accepts and identity object and a class object and returns\n * either a new instance of that class or an existing instance, if the\n * identity object was previously used.\n */\nexport function initUnique<T>(identityObj: object, ClassObj: new () => T): T {\n  try {\n    if (!instanceMap.get(identityObj)) {\n      instanceMap.set(identityObj, new ClassObj());\n    }\n    return instanceMap.get(identityObj)! as T;\n  } catch (_e) {\n    // --- START Sentry-custom code (try/catch wrapping) ---\n    // Fix for cases where identityObj is not a valid key for WeakMap (sometimes a problem in Safari)\n    // Just return a new instance without caching it in instanceMap\n    return new ClassObj();\n  }\n  // --- END Sentry-custom code ---\n}\n"],"names":[],"mappings":";;AAgBA,MAAM,WAAA,uBAA4C,OAAA,EAAQ;AAOnD,SAAS,UAAA,CAAc,aAAqB,QAAA,EAA0B;AAC3E,EAAA,IAAI;AACF,IAAA,IAAI,CAAC,WAAA,CAAY,GAAA,CAAI,WAAW,CAAA,EAAG;AACjC,MAAA,WAAA,CAAY,GAAA,CAAI,WAAA,EAAa,IAAI,QAAA,EAAU,CAAA;AAAA,IAC7C;AACA,IAAA,OAAO,WAAA,CAAY,IAAI,WAAW,CAAA;AAAA,EACpC,SAAS,EAAA,EAAI;AAIX,IAAA,OAAO,IAAI,QAAA,EAAS;AAAA,EACtB;AAEF;;;;"}