feat(natu): detect single-use let bindings

src/natu/rules.rs

@@ -11,6 +11,7 @@ pub mod list_to_attrs_map;
 pub mod manual_inherit;
 pub mod manual_inherit_from;
 pub mod redundant_parameter_forwarding;
+pub mod single_use_binding;
 pub mod unquoted_uri;
 
 #[derive(Debug)]
@@ -100,11 +101,22 @@ pub fn run_rules(file: &ast::ParsedFile, graph: &ScopeGraph, source: &str) -> Ve
                 binding: None,
                 expected_order: None,
             });
+    let single_use_binding_diagnostics =
+        single_use_binding::check(graph)
+            .into_iter()
+            .map(|finding| Finding {
+                rule_id: "single_use_binding",
+                range: finding.range,
+                message: "Inline this single-use let binding",
+                binding: Some(finding.name),
+                expected_order: None,
+            });
 
     node_diagnostics
         .chain(token_diagnostics)
         .chain(let_order_diagnostics)
         .chain(redundant_parameter_forwarding_diagnostics)
+        .chain(single_use_binding_diagnostics)
         .filter(|finding| !is_suppressed(source, finding.range, finding.rule_id))
         .map(|finding| Diagnostic {
             file_id: file.file_id,