Update distribution/engine.go

bootjp · gemini-code-assist[bot] · web-flow · commit 91f7d2897807 · 2025-09-01T23:10:00.000+09:00
Co-authored-by: gemini-code-assist[bot] &lt;176961590+gemini-code-assist[bot]@users.noreply.github.com&gt;
diff --git a/distribution/engine.go b/distribution/engine.go
@@ -125,7 +125,10 @@ func (e *Engine) splitRange(idx int) {
 	}
 left := Route{Start: r.Start, End: mid, GroupID: r.GroupID, Load: r.Load / 2}
 right := Route{Start: mid, End: r.End, GroupID: r.GroupID, Load: r.Load - (r.Load / 2)}
-	e.routes = append(append(e.routes[:idx], left, right), e.routes[idx+1:]...)
+e.routes = append(e.routes, Route{}) // Make room for one more element.
+copy(e.routes[idx+2:], e.routes[idx+1:]) // Shift elements to the right.
+e.routes[idx] = left
+e.routes[idx+1] = right
 }
 
 func cloneBytes(b []byte) []byte {

Original file line number	Diff line number	Diff line change
`@@ -125,7 +125,10 @@ func (e *Engine) splitRange(idx int) {`
`125`	`125`	`}`
`126`	`126`	`left := Route{Start: r.Start, End: mid, GroupID: r.GroupID, Load: r.Load / 2}`
`127`	`127`	`right := Route{Start: mid, End: r.End, GroupID: r.GroupID, Load: r.Load - (r.Load / 2)}`
`128`		`- e.routes = append(append(e.routes[:idx], left, right), e.routes[idx+1:]...)`
	`128`	`+e.routes = append(e.routes, Route{}) // Make room for one more element.`
	`129`	`+copy(e.routes[idx+2:], e.routes[idx+1:]) // Shift elements to the right.`
	`130`	`+e.routes[idx] = left`
	`131`	`+e.routes[idx+1] = right`
`129`	`132`	`}`
`130`	`133`
`131`	`134`	`func cloneBytes(b []byte) []byte {`