RunnableDevEnvironment Class — vite Architecture

Source Code

packages/vite/src/node/server/environments/runnableEnvironment.ts lines 43–78

class RunnableDevEnvironment extends DevEnvironment {
  private _runner: ModuleRunner | undefined
  private _runnerFactory:
    | ((
        environment: RunnableDevEnvironment,
        options?: ServerModuleRunnerOptions,
      ) => ModuleRunner)
    | undefined
  private _runnerOptions: ServerModuleRunnerOptions | undefined

  constructor(
    name: string,
    config: ResolvedConfig,
    context: RunnableDevEnvironmentContext,
  ) {
    super(name, config, context as DevEnvironmentContext)
    this._runnerFactory = context.runner
    this._runnerOptions = context.runnerOptions
  }

  get runner(): ModuleRunner {
    if (this._runner) {
      return this._runner
    }
    const factory = this._runnerFactory || createServerModuleRunner
    this._runner = factory(this, this._runnerOptions)
    return this._runner
  }

  override async close(): Promise<void> {
    await super.close()
    if (this._runner) {
      await this._runner.close()
    }
  }
}