Copilot commented on code in PR #734:
URL: https://github.com/apache/dubbo-go-pixiu/pull/734#discussion_r2272954477
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pkg/cluster/loadbalancer/rand/load_balancer_rand.go:
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@@ -33,5 +33,5 @@ func init() {
type Rand struct{}
func (Rand) Handler(c *model.ClusterConfig, _ model.LbPolicy) *model.Endpoint {
- return c.GetEndpoint(true)[rand.Intn(len(c.Endpoints)-1)]
+ return c.GetEndpoint(true)[rand.Intn(len(c.Endpoints)-1)] // NOSONAR
Review Comment:
This code has a potential index out of bounds issue. When len(c.Endpoints)
is 1, rand.Intn(0) will panic. The expression should be
rand.Intn(len(c.Endpoints)) instead of rand.Intn(len(c.Endpoints)-1).
```suggestion
return c.GetEndpoint(true)[rand.Intn(len(c.Endpoints))] // NOSONAR
```
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