modify code

[rust.git] / clippy_lints / src / misc.rs

diff --git a/clippy_lints/src/misc.rs b/clippy_lints/src/misc.rs
index 2299a09991091a60914bdb32cebe8cf752efeb2e..3918bdbdf4387cc7e5bc926df8d5519bfdd684b8 100644 (file)
--- a/clippy_lints/src/misc.rs
+++ b/clippy_lints/src/misc.rs
@@ -407,6 +407,7 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
             // Don't lint things expanded by #[derive(...)], etc or `await` desugaring
             return;
         }
+        let sym;
         let binding = match expr.kind {
             ExprKind::Path(ref qpath) if !matches!(qpath, hir::QPath::LangItem(..)) => {
                 let binding = last_path_segment(qpath).ident.as_str();
@@ -423,7 +424,8 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
                 }
             },
             ExprKind::Field(_, ident) => {
-                let name = ident.as_str();
+                sym = ident.name;
+                let name = sym.as_str();
                 if name.starts_with('_') && !name.starts_with("__") {
                     Some(name)
                 } else {
@@ -521,7 +523,7 @@ fn is_signum(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
     }
 
     if_chain! {
-        if let ExprKind::MethodCall(method_name, _, [ref self_arg, ..], _) = expr.kind;
+        if let ExprKind::MethodCall(method_name, [ref self_arg, ..], _) = expr.kind;
         if sym!(signum) == method_name.ident.name;
         // Check that the receiver of the signum() is a float (expressions[0] is the receiver of
         // the method call)
@@ -546,6 +548,7 @@ fn is_array(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
     matches!(&cx.typeck_results().expr_ty(expr).peel_refs().kind(), ty::Array(_, _))
 }
 
+#[allow(clippy::too_many_lines)]
 fn check_to_owned(cx: &LateContext<'_>, expr: &Expr<'_>, other: &Expr<'_>, left: bool) {
     #[derive(Default)]
     struct EqImpl {
@@ -642,10 +645,26 @@ fn symmetric_partial_eq<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, other: Ty<'t
                 hint = expr_snip;
             } else {
                 span = expr.span.to(other.span);
+
+                let cmp_span = if other.span < expr.span {
+                    other.span.between(expr.span)
+                } else {
+                    expr.span.between(other.span)
+                };
                 if eq_impl.ty_eq_other {
-                    hint = format!("{} == {}", expr_snip, snippet(cx, other.span, ".."));
+                    hint = format!(
+                        "{}{}{}",
+                        expr_snip,
+                        snippet(cx, cmp_span, ".."),
+                        snippet(cx, other.span, "..")
+                    );
                 } else {
-                    hint = format!("{} == {}", snippet(cx, other.span, ".."), expr_snip);
+                    hint = format!(
+                        "{}{}{}",
+                        snippet(cx, other.span, ".."),
+                        snippet(cx, cmp_span, ".."),
+                        expr_snip
+                    );
                 }
             }
 
@@ -715,7 +734,7 @@ fn check_cast(cx: &LateContext<'_>, span: Span, e: &Expr<'_>, ty: &hir::Ty<'_>)
     }
 }
 
-fn check_binary(
+fn check_binary<'a>(
     cx: &LateContext<'a>,
     expr: &Expr<'_>,
     cmp: &rustc_span::source_map::Spanned<rustc_hir::BinOpKind>,