fix dogfood tests

remove unnecessary clone in parse_attrs

Author: suyashb95

clippy_lints/src/lib.rs

@@ -956,7 +956,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(|| box implicit_return::ImplicitReturn);
     store.register_late_pass(|| box implicit_saturating_sub::ImplicitSaturatingSub);
     let msrv = conf.msrv.clone();
-    store.register_late_pass(move || box methods::Methods::new(String::from(msrv.clone())));
+    store.register_late_pass(move || box methods::Methods::new(msrv.clone()));
     store.register_late_pass(|| box map_clone::MapClone);
     store.register_late_pass(|| box map_err_ignore::MapErrIgnore);
     store.register_late_pass(|| box shadow::Shadow);
@@ -971,7 +971,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     let type_complexity_threshold = conf.type_complexity_threshold;
     store.register_late_pass(move || box types::TypeComplexity::new(type_complexity_threshold));
     let msrv = conf.msrv.clone();
-    store.register_late_pass(move || box matches::Matches::new(String::from(msrv.clone())));
+    store.register_late_pass(move || box matches::Matches::new(msrv.clone()));
     store.register_late_pass(|| box minmax::MinMaxPass);
     store.register_late_pass(|| box open_options::OpenOptions);
     store.register_late_pass(|| box zero_div_zero::ZeroDiv);
@@ -1131,7 +1131,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(|| box mut_mutex_lock::MutMutexLock);
     store.register_late_pass(|| box match_on_vec_items::MatchOnVecItems);
     let msrv = conf.msrv.clone();
-    store.register_early_pass(move || box manual_non_exhaustive::ManualNonExhaustive::new(String::from(msrv.clone())));
+    store.register_early_pass(move || box manual_non_exhaustive::ManualNonExhaustive::new(msrv.clone()));
     store.register_late_pass(|| box manual_async_fn::ManualAsyncFn);
     store.register_early_pass(|| box redundant_field_names::RedundantFieldNames);
     store.register_late_pass(|| box vec_resize_to_zero::VecResizeToZero);
@@ -1153,7 +1153,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(|| box float_equality_without_abs::FloatEqualityWithoutAbs);
     store.register_late_pass(|| box async_yields_async::AsyncYieldsAsync);
     let msrv = conf.msrv.clone();
-    store.register_late_pass(move || box manual_strip::ManualStrip::new(String::from(msrv.clone())));
+    store.register_late_pass(move || box manual_strip::ManualStrip::new(msrv.clone()));
     store.register_late_pass(|| box utils::internal_lints::MatchTypeOnDiagItem);
     let disallowed_methods = conf.disallowed_methods.iter().cloned().collect::<FxHashSet<_>>();
     store.register_late_pass(move || box disallowed_method::DisallowedMethod::new(&disallowed_methods));

clippy_lints/src/matches.rs

@@ -529,10 +529,7 @@ pub struct Matches {
 impl Matches {
     #[must_use]
     pub fn new(msrv: String) -> Self {
-        Self {
-            msrv_stack: LimitStack::new(msrv),
-            ..Default::default()
-        }
+        Self { msrv_stack: LimitStack::new(msrv), ..Default::default()}
     }
 }
 
@@ -565,10 +562,8 @@ impl<'tcx> LateLintPass<'tcx> for Matches {
 
         redundant_pattern_match::check(cx, expr);
 
-        if Version::parse(&self.msrv_stack.limit()) >= Version::parse(MATCH_LIKE_MATCHES_MACRO_MSRV) {
-            if !check_match_like_matches(cx, expr) {
-                lint_match_arms(cx, expr);
-            }
+        if Version::parse(&self.msrv_stack.limit()) >= Version::parse(MATCH_LIKE_MATCHES_MACRO_MSRV) && !check_match_like_matches(cx, expr) {
+            lint_match_arms(cx, expr);
         }
 
         if let ExprKind::Match(ref ex, ref arms, MatchSource::Normal) = expr.kind {

clippy_lints/src/methods/mod.rs

@@ -1380,7 +1380,7 @@ impl Methods {
     #[must_use]
     pub fn new(msrv: String) -> Self {
         Self {
-            msrv_stack: LimitStack::new(msrv.clone()),
+            msrv_stack: LimitStack::new(msrv),
         }
     }
 }

clippy_lints/src/utils/attrs.rs

@@ -29,11 +29,11 @@ pub struct LimitStack<T> {
     stack: Vec<T>,
 }
 
-impl<T> Drop for LimitStack<T> {
-    fn drop(&mut self) {
-        assert_eq!(1, 1);
-    }
-}
+// impl<T> Drop for LimitStack<T> {
+//     fn drop(&mut self) {
+//         assert_eq!(1, 1);
+//     }
+// }
 
 impl<T: std::cmp::PartialEq + std::fmt::Debug + FromStr + Clone> LimitStack<T> {
     #[must_use]
@@ -118,7 +118,7 @@ fn parse_attrs<T: std::clone::Clone + FromStr, F: FnMut(T)>(
     mut f: F,
 ) {
     for attr in get_attr(sess, attrs, name) {
-        if let Some(ref value) = attr.value_str().clone() {
+        if let Some(ref value) = attr.value_str() {
             if let Ok(value) = FromStr::from_str(&value.as_str()) {
                 f(value)
             } else {