Function setup

packages/vite/src/node/optimizer/pluginConverter.ts:41–111

(
    plugins: RolldownPluginOption[],
    platform: 'browser' | 'node' | 'neutral',
  )

  let isSetupDone = false
  const setup = async (
    plugins: RolldownPluginOption[],
    platform: 'browser' | 'node' | 'neutral',
  ) => {
    const onResolveCallbacks: Array<
      [options: esbuild.OnResolveOptions, callback: EsbuildOnResolveCallback]
    > = []
    const onLoadCallbacks: Array<
      [options: esbuild.OnLoadOptions, callback: EsbuildOnLoadCallback]
    > = []

    const pluginBuild: esbuild.PluginBuild = {
      initialOptions: new Proxy(
        {
          platform,
          plugins:
            plugins?.flatMap((p) =>
              p && 'name' in p
                ? [
                    {
                      name: p.name,
                      // eslint-disable-next-line @typescript-eslint/no-empty-function
                      setup() {},
                    },
                  ]
                : [],
            ) ?? [],
        },
        {
          get(target, p, _receiver) {
            if (p in target) return (target as any)[p]
            throw new Error('Not implemented')
          },
        },
      ) as esbuild.BuildOptions,
      resolve() {
        throw new Error('Not implemented')
      },
      onStart(callback) {
        onStartCallbacks.push(callback)
      },
      onEnd(callback) {
        onEndCallbacks.push(callback)
      },
      onResolve(options, callback) {
        onResolveCallbacks.push([options, callback])
      },
      onLoad(options, callback) {
        onLoadCallbacks.push([options, callback])
      },
      onDispose(callback) {
        onDisposeCallbacks.push(callback)
      },
      get esbuild(): esbuild.PluginBuild['esbuild'] {
        throw new Error('Not implemented')
      },
      set esbuild(_: unknown) {
        throw new Error('Not implemented')