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{"version":3,"file":"Lantern.js","sourceRoot":"","sources":["../../../../../../../../front_end/models/trace/lantern/types/Lantern.ts"],"names":[],"mappings":"AAAA,4DAA4D;AAC5D,yEAAyE;AACzE,6BAA6B;AAI7B,MAAM,CAAC,MAAM,mBAAmB,GAAG;IACjC,GAAG,EAAE,KAAK;IACV,KAAK,EAAE,OAAO;IACd,WAAW,EAAE,aAAa;IAC1B,MAAM,EAAE,QAAQ;IAChB,UAAU,EAAE,YAAY;IACxB,KAAK,EAAE,OAAO;IACd,KAAK,EAAE,OAAO;IACd,IAAI,EAAE,MAAM;IACZ,QAAQ,EAAE,UAAU;IACpB,SAAS,EAAE,WAAW;IACtB,SAAS,EAAE,WAAW;IACtB,KAAK,EAAE,OAAO;IACd,QAAQ,EAAE,UAAU;IACpB,cAAc,EAAE,gBAAgB;IAChC,IAAI,EAAE,MAAM;IACZ,SAAS,EAAE,WAAW;IACtB,kBAAkB,EAAE,oBAAoB;IACxC,QAAQ,EAAE,UAAU;IACpB,KAAK,EAAE,OAAO;CACN,CAAC","sourcesContent":["// Copyright 2024 The Chromium Authors. All rights reserved.\n// Use of this source code is governed by a BSD-style license that can be\n// found in the LICENSE file.\n\nimport type * as Protocol from '../../../../generated/protocol.js';\n\nexport const NetworkRequestTypes = {\n  XHR: 'XHR',\n  Fetch: 'Fetch',\n  EventSource: 'EventSource',\n  Script: 'Script',\n  Stylesheet: 'Stylesheet',\n  Image: 'Image',\n  Media: 'Media',\n  Font: 'Font',\n  Document: 'Document',\n  TextTrack: 'TextTrack',\n  WebSocket: 'WebSocket',\n  Other: 'Other',\n  Manifest: 'Manifest',\n  SignedExchange: 'SignedExchange',\n  Ping: 'Ping',\n  Preflight: 'Preflight',\n  CSPViolationReport: 'CSPViolationReport',\n  Prefetch: 'Prefetch',\n  FedCM: 'FedCM',\n} as const;\n\nexport interface TraceEvent {\n  name: string;\n  args: {\n    name?: string,\n    data?: {\n      frame?: string,\n      readyState?: number,\n      stackTrace?: Array<{\n                  url: string,\n                }>,\n      url?: string,\n    },\n  };\n  pid: number;\n  tid: number;\n  /** Timestamp of the event in microseconds. */\n  ts: number;\n  dur: number;\n}\nexport interface Trace {\n  traceEvents: TraceEvent[];\n}\nexport type ResourcePriority = ('VeryLow'|'Low'|'Medium'|'High'|'VeryHigh');\nexport type ResourceType = keyof typeof NetworkRequestTypes;\ntype InitiatorType = ('parser'|'script'|'preload'|'SignedExchange'|'preflight'|'other');\nexport type ResourceTiming = Protocol.Network.ResourceTiming;\nexport interface CallStack {\n  callFrames: Array<{\n    scriptId: string,\n    url: string,\n    lineNumber: number,\n    columnNumber: number,\n    functionName: string,\n  }>;\n  parent?: CallStack;\n}\n\nexport interface ParsedURL {\n  /**\n   * Equivalent to a `new URL(url).protocol` BUT w/o the trailing colon (:)\n   */\n  scheme: string;\n  /**\n   * Equivalent to a `new URL(url).hostname`\n   */\n  host: string;\n  securityOrigin: string;\n}\n\n// When Lantern NetworkRequests are constructed, the source-of-truth of the network record is given as `rawRequest`.\n// Internally Lantern doesn't care about the type of this field, so a default type is given to simplify internal code\n// by avoiding unnecessary typescript overhead.\n// If callers want to access the underlying network record, they are expected to make use of this generic on top-level\n// interfaces like Simulator.\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport type AnyNetworkObject = any;\n\nexport interface NetworkRequest<T = AnyNetworkObject> {\n  requestId: string;\n  connectionId: number;\n  connectionReused: boolean;\n  url: string;\n  protocol: string;\n  parsedURL: ParsedURL;\n  documentURL: string;\n  /** When the renderer process initially discovers a network request, in milliseconds. */\n  rendererStartTime: number;\n  /**\n   * When the network service is about to handle a request, ie. just before going to the\n   * HTTP cache or going to the network for DNS/connection setup, in milliseconds.\n   */\n  networkRequestTime: number;\n  /**\n   * When the last byte of the response headers is received, in milliseconds.\n   * Equal to networkRequestTime if no data is received over the\n   * network (ex: cached requests or data urls).\n   */\n  responseHeadersEndTime: number;\n  /** When the last byte of the response body is received, in milliseconds. */\n  networkEndTime: number;\n  transferSize: number;\n  resourceSize: number;\n  fromDiskCache: boolean;\n  fromMemoryCache: boolean;\n  isLinkPreload: boolean;\n  finished: boolean;\n  failed: boolean;\n  statusCode: number;\n  /** The network request that redirected to this one */\n  redirectSource: NetworkRequest<T>|undefined;\n  /** The network request that this one redirected to */\n  redirectDestination: NetworkRequest<T>|undefined;\n  // TODO: can't use Protocol.Network.Initiator because of type mismatch in Lighthouse initiator.\n  initiator: {\n    type: InitiatorType,\n    url?: string,\n    stack?: CallStack,\n  };\n  initiatorRequest: NetworkRequest<T>|undefined;\n  /** The chain of network requests that redirected to this one */\n  redirects: NetworkRequest[]|undefined;\n  timing: Protocol.Network.ResourceTiming|undefined;\n  resourceType: ResourceType|undefined;\n  mimeType: string;\n  priority: ResourcePriority;\n  frameId: string|undefined;\n  fromWorker: boolean;\n  /**\n   * Optional value for how long the server took to respond to this request, in ms.\n   * When not provided, the server response time is derived from the timing object.\n   */\n  serverResponseTime?: number;\n  /**\n   * Implementation-specific canonical data structure that this Lantern NetworkRequest\n   * was derived from.\n   * Users of Lantern create a NetworkRequest matching this interface,\n   * but can store the source-of-truth for their network model in this property.\n   * This is then accessible as a read-only property on NetworkNode.\n   */\n  rawRequest?: T;\n}\n\nexport namespace Simulation {\n  export interface URL {\n    /** URL of the initially requested URL */\n    requestedUrl?: string;\n    /** URL of the last document request */\n    mainDocumentUrl?: string;\n  }\n\n  /** Simulation settings that control the amount of network & cpu throttling in the run. */\n  export interface ThrottlingSettings {\n    /** The round trip time in milliseconds. */\n    rttMs?: number;\n    /** The network throughput in kilobits per second. */\n    throughputKbps?: number;\n    // devtools settings\n    /** The network request latency in milliseconds. */\n    requestLatencyMs?: number;\n    /** The network download throughput in kilobits per second. */\n    downloadThroughputKbps?: number;\n    /** The network upload throughput in kilobits per second. */\n    uploadThroughputKbps?: number;\n    // used by both\n    /** The amount of slowdown applied to the cpu (1/<cpuSlowdownMultiplier>). */\n    cpuSlowdownMultiplier?: number;\n  }\n\n  export interface PrecomputedLanternData {\n    additionalRttByOrigin: Record<string, number>;\n    serverResponseTimeByOrigin: Record<string, number>;\n  }\n\n  export interface Settings {\n    networkAnalysis: {\n      rtt: number,\n      additionalRttByOrigin: Map<string, number>,\n      serverResponseTimeByOrigin: Map<string, number>,\n      throughput: number,\n    };\n    /** The method used to throttle the network. */\n    throttlingMethod: 'devtools'|'simulate'|'provided';\n    /** The throttling config settings. */\n    throttling?: Required<ThrottlingSettings>;\n    /** Precomputed lantern estimates to use instead of observed analysis. */\n    precomputedLanternData?: PrecomputedLanternData|null;\n  }\n\n  export interface Options {\n    rtt?: number;\n    throughput?: number;\n    observedThroughput: number;\n    maximumConcurrentRequests?: number;\n    cpuSlowdownMultiplier?: number;\n    layoutTaskMultiplier?: number;\n    additionalRttByOrigin?: Map<string, number>;\n    serverResponseTimeByOrigin?: Map<string, number>;\n  }\n\n  export interface ProcessedNavigation {\n    timestamps: {\n      firstContentfulPaint: number,\n      largestContentfulPaint?: number,\n    };\n  }\n\n  export interface NodeTiming {\n    startTime: number;\n    endTime: number;\n    duration: number;\n  }\n}\n"]}