cargo dev fmt

[rust.git] / clippy_lints / src / utils / ast_utils.rs

diff --git a/clippy_lints/src/utils/ast_utils.rs b/clippy_lints/src/utils/ast_utils.rs
index fcf7a4b1367e3c4086bf6edeabe3faa519e3f948..f0267e4c792893b36869f19ed32f5103c8c5569b 100644 (file)
--- a/clippy_lints/src/utils/ast_utils.rs
+++ b/clippy_lints/src/utils/ast_utils.rs
@@ -10,6 +10,17 @@
 use rustc_span::symbol::Ident;
 use std::mem;
 
+pub mod ident_iter;
+pub use ident_iter::IdentIter;
+
+pub fn is_useless_with_eq_exprs(kind: BinOpKind) -> bool {
+    use BinOpKind::*;
+    matches!(
+        kind,
+        Sub | Div | Eq | Lt | Le | Gt | Ge | Ne | And | Or | BitXor | BitAnd | BitOr
+    )
+}
+
 /// Checks if each element in the first slice is contained within the latter as per `eq_fn`.
 pub fn unordered_over<X>(left: &[X], right: &[X], mut eq_fn: impl FnMut(&X, &X) -> bool) -> bool {
     left.len() == right.len() && left.iter().all(|l| right.iter().any(|r| eq_fn(l, r)))
@@ -397,7 +408,10 @@ pub fn eq_use_tree_kind(l: &UseTreeKind, r: &UseTreeKind) -> bool {
 }
 
 pub fn eq_defaultness(l: Defaultness, r: Defaultness) -> bool {
-    matches!((l, r), (Defaultness::Final, Defaultness::Final) | (Defaultness::Default(_), Defaultness::Default(_)))
+    matches!(
+        (l, r),
+        (Defaultness::Final, Defaultness::Final) | (Defaultness::Default(_), Defaultness::Default(_))
+    )
 }
 
 pub fn eq_vis(l: &Visibility, r: &Visibility) -> bool {