Clients Class — vite Architecture

Source Code

packages/vite/src/node/server/environments/fullBundleEnvironment.ts lines 370–400

class Clients {
  private clientToId = new Map<NormalizedHotChannelClient, string>()
  private idToClient = new Map<string, NormalizedHotChannelClient>()

  setupIfNeeded(client: NormalizedHotChannelClient): string {
    const id = this.clientToId.get(client)
    if (id) return id

    const newId = randomUUID()
    this.clientToId.set(client, newId)
    this.idToClient.set(newId, client)
    return newId
  }

  get(id: string): NormalizedHotChannelClient | undefined {
    return this.idToClient.get(id)
  }

  getAll(): NormalizedHotChannelClient[] {
    return Array.from(this.idToClient.values())
  }

  delete(client: NormalizedHotChannelClient): string | undefined {
    const id = this.clientToId.get(client)
    if (id) {
      this.clientToId.delete(client)
      this.idToClient.delete(id)
      return id
    }
  }
}