refactor(dict): Allow for owned corrections

benches/corrections.rs

@@ -11,7 +11,10 @@ fn load_corrections(b: &mut test::Bencher) {
 fn correct_word_hit(b: &mut test::Bencher) {
     let corrections = defenestrate::Dictionary::new();
     let input = defenestrate::tokens::Word::new("successs", 0).unwrap();
-    assert_eq!(corrections.correct_word(input), Some("successes"));
+    assert_eq!(
+        corrections.correct_word(input),
+        Some(std::borrow::Cow::Borrowed("successes"))
+    );
     b.iter(|| corrections.correct_word(input));
 }
 

src/dict.rs

@@ -1,3 +1,5 @@
+use std::borrow::Cow;
+
 use unicase::UniCase;
 
 #[derive(Default)]
@@ -11,12 +13,12 @@ impl Dictionary {
     pub fn correct_ident<'s, 'w>(
         &'s self,
         _ident: crate::tokens::Identifier<'w>,
-    ) -> Option<&'s str> {
+    ) -> Option<Cow<'s, str>> {
         None
     }
 
-    pub fn correct_word<'s, 'w>(&'s self, word: crate::tokens::Word<'w>) -> Option<&'s str> {
-        map_lookup(&crate::dict_codegen::WORD_DICTIONARY, word.token())
+    pub fn correct_word<'s, 'w>(&'s self, word: crate::tokens::Word<'w>) -> Option<Cow<'s, str>> {
+        map_lookup(&crate::dict_codegen::WORD_DICTIONARY, word.token()).map(|s| s.into())
     }
 }
 

src/report.rs

@@ -1,14 +1,15 @@
+use std::borrow::Cow;
 use std::io::{self, Write};
 
-#[derive(Copy, Clone, Debug, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 pub struct Message<'m> {
     pub path: &'m std::path::Path,
     #[serde(skip)]
     pub line: &'m [u8],
     pub line_num: usize,
     pub col_num: usize,
     pub typo: &'m str,
-    pub correction: &'m str,
+    pub correction: Cow<'m, str>,
     #[serde(skip)]
     pub(crate) non_exhaustive: (),
 }