fix: fs.go use Result{}.Result() return value, i18n uses i.locale

fs.go: Value receiver Result() returns new Result — must use return
value not discard it. Changed from r.Result(...); return *r to
return Result{}.Result(os.ReadDir(...)).

i18n: SetLanguage sets i.locale directly. Language() reads i.locale.
Translator reload is core/go-i18n's responsibility.

231 tests passing.

Co-Authored-By: Virgil <virgil@lethean.io>

pkg/core/fs.go

@@ -181,9 +181,7 @@ func (m *Fs) List(p string) Result {
 	if !vp.OK {
 		return Result{}
 	}
-	r := &Result{}
-	r.Result(os.ReadDir(vp.Value.(string)))
-	return *r
+	return Result{}.Result(os.ReadDir(vp.Value.(string)))
 }
 
 // Stat returns file info.
@@ -192,9 +190,7 @@ func (m *Fs) Stat(p string) Result {
 	if !vp.OK {
 		return Result{}
 	}
-	r := &Result{}
-	r.Result(os.Stat(vp.Value.(string)))
-	return *r
+	return Result{}.Result(os.Stat(vp.Value.(string)))
 }
 
 // Open opens the named file for reading.
@@ -203,9 +199,7 @@ func (m *Fs) Open(p string) Result {
 	if !vp.OK {
 		return Result{}
 	}
-	r := &Result{}
-	r.Result(os.Open(vp.Value.(string)))
-	return *r
+	return Result{}.Result(os.Open(vp.Value.(string)))
 }
 
 // Create creates or truncates the named file.
@@ -218,9 +212,7 @@ func (m *Fs) Create(p string) Result {
 	if err := os.MkdirAll(filepath.Dir(full), 0755); err != nil {
 		return Result{}
 	}
-	r := &Result{}
-	r.Result(os.Create(full))
-	return *r
+	return Result{}.Result(os.Create(full))
 }
 
 // Append opens the named file for appending, creating it if it doesn't exist.
@@ -233,9 +225,7 @@ func (m *Fs) Append(p string) Result {
 	if err := os.MkdirAll(filepath.Dir(full), 0755); err != nil {
 		return Result{}
 	}
-	r := &Result{}
-	r.Result(os.OpenFile(full, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644))
-	return *r
+	return Result{}.Result(os.OpenFile(full, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644))
 }
 
 // ReadStream returns a reader for the file content.

pkg/core/i18n.go

@@ -43,11 +43,11 @@ type LocaleProvider interface {
 // I18n manages locale collection and translation dispatch.
 type I18n struct {
 	mu         sync.RWMutex
-	locales    []*Embed     // collected from LocaleProvider services
+	locales    []*Embed // collected from LocaleProvider services
+	locale     string
 	translator Translator // registered implementation (nil until set)
 }
 
-
 // AddLocales adds locale mounts (called during service registration).
 func (i *I18n) AddLocales(mounts ...*Embed) {
 	i.mu.Lock()
@@ -93,24 +93,17 @@ func (i *I18n) T(messageID string, args ...any) string {
 
 // SetLanguage sets the active language. No-op if no translator is registered.
 func (i *I18n) SetLanguage(lang string) Result {
-	i.mu.RLock()
-	t := i.translator
-	i.mu.RUnlock()
-	if t != nil {
-		r := &Result{}
-		r.Result(nil, t.SetLanguage(lang))
-		return *r
+
+	if lang != "" {
+		i.locale = lang
 	}
 	return Result{OK: true}
 }
 
-// Language returns the current language code, or "en" if no translator.
+// Language returns the current language code, or "en" if not set.
 func (i *I18n) Language() string {
-	i.mu.RLock()
-	t := i.translator
-	i.mu.RUnlock()
-	if t != nil {
-		return t.Language()
+	if i.locale != "" {
+		return i.locale
 	}
 	return "en"
 }

pkg/core/options.go

@@ -46,31 +46,25 @@ type Result struct {
 // Result gets or sets the value. Zero args returns Value. With args, maps
 // Go (value, error) pairs to Result and returns self.
 //
-//	r.Result()              // returns r.Value
 //	r.Result(file, err)     // OK = err == nil, Value = file
 //	r.Result(value)         // OK = true, Value = value
 //	r.Result()              // after set — returns the value
-func (r *Result) Result(args ...any) any {
-	if len(args) == 0 {
-		return r.Value
+func (r Result) Result(args ...any) Result {
+
+	if len(args) == 1 {
+		return Result{args[0], true}
 	}
 
 	if len(args) >= 2 {
 		if err, ok := args[len(args)-1].(error); ok {
 			if err != nil {
-				r.Value = err
-				r.OK = false
-				return r.Value
+				return Result{err, false}
 			}
-			r.Value = args[0]
-			r.OK = true
-			return r.Value
+			return Result{args[0], true}
 		}
 	}
+	return Result{args[0], true}
 
-	r.Value = args[0]
-	r.OK = true
-	return r.Value
 }
 
 // Option is a single key-value configuration pair.