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add invariant about number of returned links

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NikVolf
2019-09-24 13:15:35 +02:00
parent 7879b63321
commit 1eb4fb91f6
1 changed files with 2 additions and 0 deletions
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src/tree.rs
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@@ -142,6 +142,8 @@ impl Tree {
/// Append one leaf to the tree. /// Append one leaf to the tree.
/// ///
/// Returns links to actual nodes that has to be persisted as the result of the append. /// Returns links to actual nodes that has to be persisted as the result of the append.
/// If completed without error, at least one link to the appended
/// node (with metadata provided in `new_leaf`) will be returned.
pub fn append_leaf(&mut self, new_leaf: NodeData) -> Result<Vec<EntryLink>, Error> { pub fn append_leaf(&mut self, new_leaf: NodeData) -> Result<Vec<EntryLink>, Error> {
let root = self.root; let root = self.root;
let new_leaf_link = self.push(new_leaf.into()); let new_leaf_link = self.push(new_leaf.into());