func allServices(pidl *idl.Idl) []*idl.Service {
	s := make([]*idl.Service, 0)
	s = append(s, pidl.Services...)
	for _, i := range pidl.UniqueImports() {
		s = append(s, i.Services...)
	}
	return s
}

func allStructs(pidl *idl.Idl) []*idl.Struct {
	s := make([]*idl.Struct, 0)
	s = append(s, pidl.Structs...)
	for _, i := range pidl.UniqueImports() {
		s = append(s, i.Structs...)
	}
	return s
}

func allEnums(pidl *idl.Idl) []*idl.Enum {
	s := make([]*idl.Enum, 0)
	s = append(s, pidl.Enums...)
	for _, i := range pidl.UniqueImports() {
		s = append(s, i.Enums...)
	}
	return s
}

func loadBabelFiles(args []string) (*idl.Idl, error) {
	// initialize map to track processed files
	processedFiles := make(map[string]bool)

	// create base IDL to aggregate into
	var midl idl.Idl
	midl.Init()
	midl.AddDefaultNamespace("babelrpc.io", "Foo/Bar")

	// load specified IDL files into it
	for _, infilePat := range args {
		infiles, err := filepath.Glob(infilePat)
		if err != nil {
			return nil, errors.New(fmt.Sprintf("Cannot glob files: %s\n", err))
		}
		if len(infiles) == 0 {
			log.Printf("Warning: No files match \"%s\"\n", infilePat)
		}
		for _, infile := range infiles {
			_, ok := processedFiles[infile]
			if ok {
				log.Printf("Already processed %s\n", infile)
			} else {
				processedFiles[infile] = true
				// fmt.Printf("%s:\n", infile)
				bidl, err := parser.ParseIdl(infile, "test")
				if err != nil {
					return nil, errors.New(fmt.Sprintf("Parsing error in %s: %s\n", infile, err))
				}

				midl.Imports = append(midl.Imports, bidl)
			}
		}
	}

	// validate combined babel
	err := midl.Validate("test")
	if err != nil {
		log.Printf("Warning: Combined IDL does not validate: %s\n", err)
	}

	return &midl, nil
}

func typeToItems(pidl *idl.Idl, t *idl.Type) *swagger2.ItemsDef {
	it := new(swagger2.ItemsDef)
	it.Ref = ""
	if t.IsPrimitive() {
		it.Format = t.String()
		if t.IsInt() || t.IsByte() {
			it.Type = "integer"
			it.Format = "int32"
			if t.Name == "int64" {
				if swagInt && restful {
					// Swagger style int64
					it.Format = "int64"
				} else {
					// Babel style int64
					it.Type = "string"  // ??? Babel quotes large integers to avoid precision loss in JavaScript
					it.Format = "int64" // SWAGGER-CLARIFICATION: is format int64 legal with type string?
				}
			}
		} else if t.IsFloat() {
			it.Type = "number"
			it.Format = "float"
			if t.Name == "float64" {
				it.Format = "double"
			}
		} else if t.IsBool() {
			it.Type = "boolean"
			it.Format = ""
		} else if t.IsDatetime() {
			it.Type = "string"
			it.Format = "date-time"
		} else if t.IsDecimal() {
			it.Type = "string"
			it.Format = ""
		} else if t.IsString() || t.IsChar() {
			it.Type = "string"
			it.Format = ""
		}
	} else if t.IsBinary() {
		it.Type = "string"
		it.Format = "byte"
	} else if t.IsMap() {
		it.Type = "object"
		// hmmm....what to do if keytype is not string?
		// SWAGGER-CLARIFICATION: Does swagger require all key types to be strings?
		it.AdditionalProperties = typeToItems(pidl, t.ValueType)
	} else if t.IsList() {
		it.Type = "array"
		it.Format = ""
		it.Items = typeToItems(pidl, t.ValueType)
	} else if t.IsEnum(pidl) {
		// SWAGGER-BUG: Enums cannot be delared in a schema
		it.Type = "string"
		it.Format = ""
		it.Enum = make([]interface{}, 0)
		e := pidl.FindEnum(t.Name)
		if e != nil {
			for _, x := range e.Values {
				it.Enum = append(it.Enum, x.Name)
			}
		}
	} else {
		// user-defined, struct or enum
		it.Ref = "#/definitions/" + t.Name
	}
	return it
}

// main entry point
func main() {
	/*
		// recover panicking parser
		defer func() {
			if r := recover(); r != nil {
				e, y := r.(*idl.Error)
				if y {
					fmt.Fprintln(os.Stderr, e.Error())
					os.Exit(e.Code)
				} else {
					fmt.Fprintf(os.Stderr, "Exiting due to fatal error:\n%s\n", r)
					os.Exit(1)
				}
			}
		}()
	*/

	var format string
	flag.StringVar(&format, "format", "json", "Specifies output format - can be json or yaml")

	var output string
	flag.StringVar(&output, "out", "", "Specifies the file to write to")

	var host string
	flag.StringVar(&host, "host", "localhost", "Specifies the host to include in the file, for example localhost:8080")

	var basePath string
	flag.StringVar(&basePath, "basepath", "/", "Specifies the base path to include in the file, for example /foo/bar")

	var title string
	flag.StringVar(&title, "title", "My Application", "Sets the application title")

	flag.BoolVar(&flatten, "flat", false, "Flatten composed objects into a single object definition")

	var version string
	flag.StringVar(&version, "version", "1.0", "Sets the API version")

	flag.BoolVar(&restful, "rest", false, "Process @rest annotations (resulting Swagger won't be able to invoke Babel services)")

	flag.BoolVar(&swagInt, "int64", false, "When -rest is enabled, format int64 Swagger-style instead of Babel-style")

	flag.BoolVar(&genErr, "error", false, "When -rest is enabled, still include the Babel error definition")

	flag.Parse()

	if format != "json" && format != "yaml" {
		fmt.Printf("-format must be json or yaml.\n")
		os.Exit(0)
	}

	if swagInt && !restful {
		fmt.Fprintf(os.Stderr, "Warning: Ignoring -int64 because -rest is not set.\n")
		swagInt = false
	}

	if len(flag.Args()) == 0 {
		fmt.Printf("Please specify files to process or -help for options.\n")
		os.Exit(0)
	}

	// initialize map to track processed files
	processedFiles := make(map[string]bool)

	// create base IDL to aggregate into
	var midl idl.Idl
	midl.Init()
	midl.AddDefaultNamespace("babelrpc.io", "Foo/Bar")

	// load specified IDL files into it
	for _, infilePat := range flag.Args() {
		infiles, err := filepath.Glob(infilePat)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Cannot glob files: %s\n", err)
			os.Exit(5)
		}
		if len(infiles) == 0 {
			fmt.Fprintf(os.Stderr, "Warning: No files match \"%s\"\n", infilePat)
		}
		for _, infile := range infiles {
			_, ok := processedFiles[infile]
			if ok {
				fmt.Fprintf(os.Stderr, "Already processed %s\n", infile)
			} else {
				processedFiles[infile] = true
				// fmt.Printf("%s:\n", infile)
				bidl, err := parser.ParseIdl(infile, "test")
				if err != nil {
					fmt.Fprintf(os.Stderr, "Parsing error in %s: %s\n", infile, err)
					os.Exit(6)
				}

				midl.Imports = append(midl.Imports, bidl)
			}
		}
	}

	// validate combined babel
	err := midl.Validate("test")
	if err != nil {
//.........这里部分代码省略.........