Fix typos “a”→“an”

clippy_lints/src/loops/manual_memcpy.rs

@@ -268,7 +268,7 @@ impl std::ops::Sub<&MinifyingSugg<'static>> for MinifyingSugg<'static> {
     }
 }
 
-/// a wrapper around `MinifyingSugg`, which carries a operator like currying
+/// a wrapper around `MinifyingSugg`, which carries an operator like currying
 /// so that the suggested code become more efficient (e.g. `foo + -bar` `foo - bar`).
 struct Offset {
     value: MinifyingSugg<'static>,

clippy_lints/src/non_copy_const.rs

@@ -293,7 +293,7 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
                 }) => {
                     if_chain! {
                         // Lint a trait impl item only when the definition is a generic type,
-                        // assuming a assoc const is not meant to be a interior mutable type.
+                        // assuming an assoc const is not meant to be an interior mutable type.
                         if let Some(of_trait_def_id) = of_trait_ref.trait_def_id();
                         if let Some(of_assoc_item) = specialization_graph::Node::Trait(of_trait_def_id)
                             .item(cx.tcx, impl_item.ident, AssocKind::Const, of_trait_def_id);

clippy_lints/src/ranges.rs

@@ -51,7 +51,7 @@ declare_clippy_lint! {
     ///
     /// ### Known problems
     /// Will add unnecessary pair of parentheses when the
-    /// expression is not wrapped in a pair but starts with a opening parenthesis
+    /// expression is not wrapped in a pair but starts with an opening parenthesis
     /// and ends with a closing one.
     /// I.e., `let _ = (f()+1)..(f()+1)` results in `let _ = ((f()+1)..=f())`.
     ///

clippy_lints/src/shadow.rs

@@ -74,7 +74,7 @@ declare_clippy_lint! {
 declare_clippy_lint! {
     /// ### What it does
     /// Checks for bindings that shadow other bindings already in
-    /// scope, either without a initialization or with one that does not even use
+    /// scope, either without an initialization or with one that does not even use
     /// the original value.
     ///
     /// ### Why is this bad?

clippy_lints/src/utils/conf.rs

@@ -198,7 +198,7 @@ define_Conf! {
     (enum_variant_name_threshold: u64 = 3),
     /// Lint: LARGE_ENUM_VARIANT.
     ///
-    /// The maximum size of a enum's variant to avoid box suggestion
+    /// The maximum size of an enum's variant to avoid box suggestion
     (enum_variant_size_threshold: u64 = 200),
     /// Lint: VERBOSE_BIT_MASK.
     ///

clippy_utils/src/consts.rs

@@ -329,7 +329,7 @@ impl<'a, 'tcx> ConstEvalLateContext<'a, 'tcx> {
         vec.iter().map(|elem| self.expr(elem)).collect::<Option<_>>()
     }
 
-    /// Lookup a possibly constant expression from a `ExprKind::Path`.
+    /// Lookup a possibly constant expression from an `ExprKind::Path`.
     fn fetch_path(&mut self, qpath: &QPath<'_>, id: HirId, ty: Ty<'tcx>) -> Option<Constant> {
         let res = self.typeck_results.qpath_res(qpath, id);
         match res {

clippy_utils/src/lib.rs

@@ -583,7 +583,7 @@ pub fn trait_ref_of_method<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Optio
 /// For example, if `e` represents the `v[0].a.b[x]`
 /// this method will return a tuple, composed of a `Vec`
 /// containing the `Expr`s for `v[0], v[0].a, v[0].a.b, v[0].a.b[x]`
-/// and a `Expr` for root of them, `v`
+/// and an `Expr` for root of them, `v`
 fn projection_stack<'a, 'hir>(mut e: &'a Expr<'hir>) -> (Vec<&'a Expr<'hir>>, &'a Expr<'hir>) {
     let mut result = vec![];
     let root = loop {

clippy_utils/src/sugg.rs

@@ -434,7 +434,7 @@ pub fn make_assoc(op: AssocOp, lhs: &Sugg<'_>, rhs: &Sugg<'_>) -> Sugg<'static>
         matches!(op, AssocOp::ShiftLeft | AssocOp::ShiftRight)
     }
 
-    /// Returns `true` if the operator is a arithmetic operator
+    /// Returns `true` if the operator is an arithmetic operator
     /// (i.e., `+`, `-`, `*`, `/`, `%`).
     fn is_arith(op: AssocOp) -> bool {
         matches!(

tests/ui/declare_interior_mutable_const/traits.rs

@@ -117,7 +117,7 @@ impl SelfType for AtomicUsize {
     const WRAPPED_SELF: Option<Self> = Some(AtomicUsize::new(21)); //~ ERROR interior mutable
 }
 
-// Even though a constant contains a generic type, if it also have a interior mutable type,
+// Even though a constant contains a generic type, if it also have an interior mutable type,
 // it should be linted at the definition site.
 trait BothOfCellAndGeneric<T> {
     // this is a false negative in the current implementation.