chore: clippy lints

cli/src/fuzz/edits.rs

@@ -7,6 +7,7 @@ pub struct Edit {
     pub inserted_text: Vec<u8>,
 }
 
+#[must_use]
 pub fn invert_edit(input: &[u8], edit: &Edit) -> Edit {
     let position = edit.position;
     let removed_content = &input[position..(position + edit.deleted_length)];

cli/src/fuzz/mod.rs

@@ -65,20 +65,6 @@ pub fn fuzz_language_corpus(
     grammar_dir: &Path,
     options: &mut FuzzOptions,
 ) {
-    let subdir = options.subdir.take().unwrap_or_default();
-
-    let corpus_dir = grammar_dir.join(subdir).join("test").join("corpus");
-
-    if !corpus_dir.exists() || !corpus_dir.is_dir() {
-        eprintln!("No corpus directory found, ensure that you have a `test/corpus` directory in your grammar directory with at least one test file.");
-        return;
-    }
-
-    if std::fs::read_dir(&corpus_dir).unwrap().count() == 0 {
-        eprintln!("No corpus files found in `test/corpus`, ensure that you have at least one test file in your corpus directory.");
-        return;
-    }
-
     fn retain(entry: &mut TestEntry, language_name: &str) -> bool {
         match entry {
             TestEntry::Example { attributes, .. } => {
@@ -97,6 +83,20 @@ pub fn fuzz_language_corpus(
         }
     }
 
+    let subdir = options.subdir.take().unwrap_or_default();
+
+    let corpus_dir = grammar_dir.join(subdir).join("test").join("corpus");
+
+    if !corpus_dir.exists() || !corpus_dir.is_dir() {
+        eprintln!("No corpus directory found, ensure that you have a `test/corpus` directory in your grammar directory with at least one test file.");
+        return;
+    }
+
+    if std::fs::read_dir(&corpus_dir).unwrap().count() == 0 {
+        eprintln!("No corpus files found in `test/corpus`, ensure that you have at least one test file in your corpus directory.");
+        return;
+    }
+
     let mut main_tests = parse_tests(&corpus_dir).unwrap();
     match main_tests {
         TestEntry::Group {
@@ -104,7 +104,7 @@ pub fn fuzz_language_corpus(
         } => {
             children.retain_mut(|child| retain(child, language_name));
         }
-        _ => unreachable!(),
+        TestEntry::Example { .. } => unreachable!(),
     }
     let tests = flatten_tests(main_tests, options.filter.as_ref());
 

cli/src/fuzz/random.rs

@@ -10,6 +10,7 @@ const OPERATORS: &[char] = &[
 pub struct Rand(StdRng);
 
 impl Rand {
+    #[must_use]
     pub fn new(seed: usize) -> Self {
         Self(StdRng::seed_from_u64(seed as u64))
     }

cli/src/fuzz/scope_sequence.rs

@@ -6,6 +6,7 @@ pub struct ScopeSequence(Vec<ScopeStack>);
 type ScopeStack = Vec<&'static str>;
 
 impl ScopeSequence {
+    #[must_use]
     pub fn new(tree: &Tree) -> Self {
         let mut result = Self(Vec::new());
         let mut scope_stack = Vec::new();