assert len > 0

2020-10-15 14:25:10 +08:00
parent 901fadb5d3
commit 8291eabc2c
4 changed files with 23 additions and 0 deletions
--- a/core/collection/ring.go
+++ b/core/collection/ring.go
@@ -6,6 +6,10 @@ type Ring struct {
 }

 func NewRing(n int) *Ring {
+	if n < 1 {
+		panic("n should be greater than 0")
+	}
+
 	return &Ring{
 		elements: make([]interface{}, n),
 	}