style: improve code

Author: houseme

.gitignore

@@ -23,3 +23,4 @@ Cargo.lock
 # Added by cargo
 
 /target
+.editorconfig

rustfmt.toml

@@ -2,4 +2,12 @@ max_width = 120
 use_small_heuristics = "Max"
 use_field_init_shorthand = true
 reorder_imports = true
-edition = "2021"
+edition = "2021"
+newline_style = "Unix"
+hard_tabs = false
+tab_spaces = 4
+reorder_modules = true
+remove_nested_parens = true
+merge_derives = true
+use_try_shorthand = false
+force_explicit_abi = true

src/lib.rs

@@ -201,5 +201,8 @@ pub use trie::Trie;
 /// use sensitive_rs::TrieNode;
 ///
 /// let mut node = TrieNode::new('a', false);
+///
+/// assert!(!node.is_root_node());
+/// assert!(!node.is_end())
 /// ```
-pub use trie::TrieNode;
+pub use trie::TrieNode;