p, err := packageDataCache.Do(r.path, func() (*build.Package, error) {
		loaded = true
		var data struct {
			p   *build.Package
			err error
		}
		if r.dir != "" {
			var buildMode build.ImportMode
			buildContext := cfg.BuildContext
			if !cfg.ModulesEnabled {
				buildMode = build.ImportComment
			} else {
				buildContext.GOPATH = "" // Clear GOPATH so packages are imported as pure module packages
			}