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types: rbtree - add panic check

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c9s 2022-08-07 11:44:50 +08:00
parent 4e4ffe83e5
commit 2dff1e72da
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1 changed files with 3 additions and 0 deletions
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pkg/types/rbtree.go
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@ -314,6 +314,9 @@ func (tree *RBTree) RotateRight(y *RBNode) {
y.left = x.right y.left = x.right
if !x.right.isNil() { if !x.right.isNil() {
if x.right == nil {
panic(fmt.Errorf("x.right is nil: node = %+v, left = %+v, right = %+v, parent = %+v", x, x.left, x.right, x.parent))
}
x.right.parent = y x.right.parent = y
} }