style(mobile): 简化 SetOnEvent 消除重复路径

mapleafgo · claude · mapleafgo · commit 0847111a35db · 2026-05-11T00:15:39.000+08:00
Co-Authored-By: Claude Opus 4.7 &lt;noreply@anthropic.com&gt;
diff --git a/mobile/api.go b/mobile/api.go
@@ -184,14 +184,12 @@ type EventListener interface {
 }
 
 func (s *Singcast) SetOnEvent(l EventListener) {
-	if l == nil {
-		s.svc.SetOnEvent(nil)
-		core.SetOnLogEvent(nil)
-	} else {
-		fn := func(eventType int32, json string) { l.OnEvent(eventType, json) }
-		s.svc.SetOnEvent(fn)
-		core.SetOnLogEvent(fn)
+	var fn func(int32, string)
+	if l != nil {
+		fn = func(eventType int32, json string) { l.OnEvent(eventType, json) }
 	}
+	s.svc.SetOnEvent(fn)
+	core.SetOnLogEvent(fn)
 }
 
 // --- Memory ---

Original file line number	Diff line number	Diff line change
`@@ -184,14 +184,12 @@ type EventListener interface {`
`184`	`184`	`}`
`185`	`185`
`186`	`186`	`func (s *Singcast) SetOnEvent(l EventListener) {`
`187`		`- if l == nil {`
`188`		`- s.svc.SetOnEvent(nil)`
`189`		`- core.SetOnLogEvent(nil)`
`190`		`- } else {`
`191`		`- fn := func(eventType int32, json string) { l.OnEvent(eventType, json) }`
`192`		`- s.svc.SetOnEvent(fn)`
`193`		`- core.SetOnLogEvent(fn)`
	`187`	`+ var fn func(int32, string)`
	`188`	`+ if l != nil {`
	`189`	`+ fn = func(eventType int32, json string) { l.OnEvent(eventType, json) }`
`194`	`190`	`}`
	`191`	`+ s.svc.SetOnEvent(fn)`
	`192`	`+ core.SetOnLogEvent(fn)`
`195`	`193`	`}`
`196`	`194`
`197`	`195`	`// --- Memory ---`