Function Service

codegen/generator/service.go:13–53

Service iterates through the roots and returns the files needed to render the service code. It returns an error if the roots slice does not include a goa design.

(genpkg string, roots []eval.Root)

// the service code. It returns an error if the roots slice does not include
// a goa design.
func Service(genpkg string, roots []eval.Root) ([]*codegen.File, error) {
	var files []*codegen.File
	var userTypePkgs = make(map[string][]string)
	for _, root := range roots {
		r, ok := root.(*expr.RootExpr)
		if !ok {
			continue
		}
		// Create service data
		services := service.NewServicesData(r)

		for _, s := range r.Services {
			d := services.Get(s.Name)
			service.SetUserTypeImports(genpkg, d)

			// Make sure service is first so name scope is
			// properly initialized.
			svcFiles := service.Files(genpkg, s, services, userTypePkgs)
			addServiceImports(svcFiles, d)
			files = append(files, svcFiles...)

			endpointFiles := []*codegen.File{
				service.EndpointFile(genpkg, s, services),
				service.ClientFile(genpkg, s, services),
			}
			addServiceImports(endpointFiles, d)
			files = append(files, endpointFiles...)

			if f := service.ViewsFile(genpkg, s, services); f != nil {
				addServiceImports([]*codegen.File{f}, d)
				files = append(files, f)
			}
			convFiles, err := service.ConvertFiles(r, s, services)
			if err != nil {
				return nil, err
			}
			files = append(files, convFiles...)
		}
	}
	return files, nil
}

func addServiceImports(files []*codegen.File, d *service.Data) {
	for _, f := range files {