func handleMsg(msg msgType) {
c := msg.c
if c == nil {
log.Println("c shouldn't be nil")
return
}
switch msg.Type {
case "format":
resp := &msgType{
Type: "format",
}
func() {
defer func() {
if r := recover(); r != nil {
value := fmt.Sprintln(r)
stack := make([]byte, 99999)
runtime.Stack(stack, false)
value += string(stack)
resp.Value = value
}
}()
formatted, err := format.Source([]byte(msg.Value.(string)))
if err == nil {
resp.Value = string(formatted)
}
}()
c.WriteJSON(resp)
case "translate":
resp := &msgType{
Type: "translate",
}
func() {
defer func() {
if r := recover(); r != nil {
value := fmt.Sprintln(r)
stack := make([]byte, 99999)
runtime.Stack(stack, false)
value += string(stack)
resp.Value = value
}
}()
w := &bytes.Buffer{}
errs := sgo.TranslateFile(func() (io.Writer, error) { return w, nil }, strings.NewReader(msg.Value.(string)), "name")
if errs != nil {
var errMsgs []string
for _, err := range errs {
if errs, ok := err.(scanner.ErrorList); ok {
for _, err := range errs {
errMsgs = append(errMsgs, err.Error())
}
} else {
errMsgs = append(errMsgs, err.Error())
}
}
resp.Value = strings.Join(errMsgs, "\n")
} else {
resp.Value = w.String()
}
}()
c.WriteJSON(resp)
case "execute":
resp := &msgType{
Type: "execute",
}
body := url.Values{}
body.Add("version", "2")
var errs []error
w := &bytes.Buffer{}
func() {
defer func() {
if r := recover(); r != nil {
value := fmt.Sprintln(r)
stack := make([]byte, 99999)
runtime.Stack(stack, false)
value += string(stack)
errs = append(errs, errors.New(value))
}
}()
errs = sgo.TranslateFile(func() (io.Writer, error) { return w, nil }, strings.NewReader(msg.Value.(string)), "name")
}()
if errs != nil {
var errMsgs []string
for _, err := range errs {
if errs, ok := err.(scanner.ErrorList); ok {
for _, err := range errs {
errMsgs = append(errMsgs, err.Error())
}
} else {
errMsgs = append(errMsgs, err.Error())
}
}
resp.Value = strings.Join(errMsgs, "\n")
} else {
body.Add("body", w.String())
postResp, err := http.PostForm("https://play.golang.org/compile", body)
if err != nil {
resp.Value = err.Error()
} else {
var v interface{}
err := json.NewDecoder(postResp.Body).Decode(&v)
postResp.Body.Close()
if err != nil {
resp.Value = err.Error()
} else {
resp.Value = v
}
}
}
c.WriteJSON(resp)
}
}
func main() {
if len(os.Args) == 1 {
fmt.Print(helpMsg)
return
}
var buildFlags []string
var extraArgs []string
for i, arg := range os.Args[2:] {
if arg[0] == '-' {
buildFlags = append(buildFlags, arg)
} else {
extraArgs = os.Args[i+2:]
break
}
}
switch os.Args[1] {
case "version":
fmt.Println("sgo version 0.7 (compatible with go1.7)")
return
case "run":
if len(extraArgs) == 0 {
fmt.Fprintln(os.Stderr, "sgo run: no files listed")
os.Exit(1)
}
created, errs := sgo.TranslateFilePaths(extraArgs...)
reportErrs(errs...)
if len(errs) > 0 {
os.Exit(1)
}
runGoCommand("run", buildFlags, created...)
return
case "help":
if len(extraArgs) == 0 {
fmt.Print(helpMsg)
} else {
switch extraArgs[0] {
case "translate":
fmt.Print(translateHelpMsg)
return
case "version":
fmt.Print(versionHelpMsg)
return
}
runGoCommand("help", buildFlags, extraArgs...)
}
return
case "translate":
errs := sgo.TranslateFile(func() (io.Writer, error) { return os.Stdout, nil }, os.Stdin, "stdin.sgo")
if len(errs) > 0 {
reportErrs(errs...)
os.Exit(1)
}
return
}
if len(extraArgs) == 0 {
extraArgs = append(extraArgs, ".")
}
_, warnings, errs := sgo.TranslatePaths(extraArgs)
reportErrs(warnings...)
reportErrs(errs...)
if len(errs) > 0 {
os.Exit(1)
}
runGoCommand(os.Args[1], buildFlags, extraArgs...)
}
