remove Inner method from Logger interface

internal/testlog/testlog.go

@@ -98,10 +98,6 @@ func LoggerWithHandler(t *testing.T, handler slog.Handler) log.Logger {
 	}
 }
 
-func (l *logger) Inner() *slog.Logger {
-	return l.l.Inner()
-}
-
 func (l *logger) Write(level slog.Level, msg string, ctx ...interface{}) {}
 
 func (l *logger) Trace(msg string, ctx ...interface{}) {

log/logger.go

@@ -105,8 +105,6 @@ func LevelString(l slog.Level) string {
 
 // A Logger writes key/value pairs to a Handler
 type Logger interface {
-	// TODO: add WithGroup()?
-
 	// With returns a new Logger that has this logger's attributes plus the given attributes
 	With(ctx ...interface{}) Logger
 
@@ -134,9 +132,6 @@ type Logger interface {
 	// Crit logs a message at the crit level with context key/value pairs, and exits
 	Crit(msg string, ctx ...interface{})
 
-	// Inner returns the underlying slog logger that is wrapped
-	Inner() *slog.Logger
-
 	// Write logs a message at the specified level
 	Write(level slog.Level, msg string, attrs ...any)
 }
@@ -152,11 +147,6 @@ func NewLogger(h slog.Handler) Logger {
 	}
 }
 
-// Inner returns the underlying slog logger that 
-func (l *logger) Inner() *slog.Logger {
-	return l.inner
-}
-
 // write logs a message at the specified level:
 func (l *logger) Write(level slog.Level, msg string, attrs ...any) {
 	if !l.inner.Enabled(context.Background(), level) {

log/root.go

@@ -17,7 +17,9 @@ func init() {
 // SetDefault sets the default global logger
 func SetDefault(l Logger) {
 	root.Store(l)
-	slog.SetDefault(l.Inner())
+	if lg, ok := l.(*logger); ok {
+		slog.SetDefault(lg.inner)
+	}
 }
 
 // Root returns the root logger