pre-allocate handlers when using getGroups

PaulSonOfLars · PaulSonOfLars · commit 276e400f6f37 · 2023-08-23T16:28:06.000+02:00
diff --git a/ext/handler_mapping.go b/ext/handler_mapping.go
@@ -91,9 +91,9 @@ func (m *handlerMappings) getGroups() [][]Handler {
 	m.mutex.RLock()
 	defer m.mutex.RUnlock()
 
-	var handlers [][]Handler
-	for _, num := range m.handlerGroups {
-		handlers = append(handlers, m.handlers[num])
+	allHandlers := make([][]Handler, len(m.handlerGroups))
+	for idx, num := range m.handlerGroups {
+		allHandlers[idx] = m.handlers[num]
 	}
-	return handlers
+	return allHandlers
 }

Original file line number	Diff line number	Diff line change
`@@ -91,9 +91,9 @@ func (m *handlerMappings) getGroups() [][]Handler {`
`91`	`91`	`m.mutex.RLock()`
`92`	`92`	`defer m.mutex.RUnlock()`
`93`	`93`
`94`		`- var handlers [][]Handler`
`95`		`- for _, num := range m.handlerGroups {`
`96`		`- handlers = append(handlers, m.handlers[num])`
	`94`	`+ allHandlers := make([][]Handler, len(m.handlerGroups))`
	`95`	`+ for idx, num := range m.handlerGroups {`
	`96`	`+ allHandlers[idx] = m.handlers[num]`
`97`	`97`	`}`
`98`		`- return handlers`
	`98`	`+ return allHandlers`
`99`	`99`	`}`