{"version":3,"file":"global-utils.js","sourceRoot":"","sources":["../../../src/internal/global-utils.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;GAcG;AAGH,OAAO,EAAE,WAAW,EAAE,MAAM,aAAa,CAAC;AAE1C,MAAM,CAAC,IAAM,mBAAmB,GAAG,MAAM,CAAC,GAAG,CAAC,8BAA8B,CAAC,CAAC;AAO9E,MAAM,CAAC,IAAM,OAAO,GAAG,WAAyB,CAAC;AAEjD;;;;;;;GAOG;AACH,MAAM,UAAU,UAAU,CACxB,eAAuB,EACvB,QAAW,EACX,QAAW;IAEX,OAAO,UAAC,OAAe;QACrB,OAAA,OAAO,KAAK,eAAe,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,QAAQ;IAAjD,CAAiD,CAAC;AACtD,CAAC;AAED;;;;;;GAMG;AACH,MAAM,CAAC,IAAM,mCAAmC,GAAG,CAAC,CAAC","sourcesContent":["/*\n * Copyright The OpenTelemetry Authors\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\nimport { LoggerProvider } from '../types/LoggerProvider';\nimport { _globalThis } from '../platform';\n\nexport const GLOBAL_LOGS_API_KEY = Symbol.for('io.opentelemetry.js.api.logs');\n\ntype Get<T> = (version: number) => T;\ntype OtelGlobal = Partial<{\n  [GLOBAL_LOGS_API_KEY]: Get<LoggerProvider>;\n}>;\n\nexport const _global = _globalThis as OtelGlobal;\n\n/**\n * Make a function which accepts a version integer and returns the instance of an API if the version\n * is compatible, or a fallback version (usually NOOP) if it is not.\n *\n * @param requiredVersion Backwards compatibility version which is required to return the instance\n * @param instance Instance which should be returned if the required version is compatible\n * @param fallback Fallback instance, usually NOOP, which will be returned if the required version is not compatible\n */\nexport function makeGetter<T>(\n  requiredVersion: number,\n  instance: T,\n  fallback: T\n): Get<T> {\n  return (version: number): T =>\n    version === requiredVersion ? instance : fallback;\n}\n\n/**\n * A number which should be incremented each time a backwards incompatible\n * change is made to the API. This number is used when an API package\n * attempts to access the global API to ensure it is getting a compatible\n * version. If the global API is not compatible with the API package\n * attempting to get it, a NOOP API implementation will be returned.\n */\nexport const API_BACKWARDS_COMPATIBILITY_VERSION = 1;\n"]}