Merge from rustc

clippy_lints/src/from_over_into.rs

@@ -181,9 +181,6 @@ fn convert_to_from(
     let from = snippet_opt(cx, self_ty.span)?;
     let into = snippet_opt(cx, target_ty.span)?;
 
-    let return_type = matches!(sig.decl.output, FnRetTy::Return(_))
-        .then_some(String::from("Self"))
-        .unwrap_or_default();
     let mut suggestions = vec![
         // impl Into<T> for U  ->  impl From<T> for U
         //      ~~~~                    ~~~~
@@ -200,10 +197,13 @@ fn convert_to_from(
         // fn into([mut] self) -> T  ->  fn into([mut] v: T) -> T
         //               ~~~~                          ~~~~
         (self_ident.span, format!("val: {from}")),
+    ];
+
+    if let FnRetTy::Return(_) = sig.decl.output {
         // fn into(self) -> T  ->  fn into(self) -> Self
         //                  ~                       ~~~~
-        (sig.decl.output.span(), return_type),
-    ];
+        suggestions.push((sig.decl.output.span(), String::from("Self")));
+    }
 
     let mut finder = SelfFinder {
         cx,

clippy_lints/src/methods/unnecessary_sort_by.rs

@@ -5,8 +5,7 @@ use clippy_utils::ty::implements_trait;
 use rustc_errors::Applicability;
 use rustc_hir::{Closure, Expr, ExprKind, Mutability, Param, Pat, PatKind, Path, PathSegment, QPath};
 use rustc_lint::LateContext;
-use rustc_middle::ty;
-use rustc_middle::ty::GenericArgKind;
+use rustc_middle::ty::{self, GenericArgKind};
 use rustc_span::sym;
 use rustc_span::symbol::Ident;
 use std::iter;

clippy_lints/src/mutable_debug_assertion.rs

@@ -96,6 +96,10 @@ impl<'a, 'tcx> Visitor<'tcx> for MutArgVisitor<'a, 'tcx> {
                 self.found = true;
                 return;
             },
+            ExprKind::If(..) => {
+                self.found = true;
+                return;
+            },
             ExprKind::Path(_) => {
                 if let Some(adj) = self.cx.typeck_results().adjustments().get(expr.hir_id) {
                     if adj

clippy_utils/src/source.rs

@@ -8,7 +8,7 @@ use rustc_hir::{BlockCheckMode, Expr, ExprKind, UnsafeSource};
 use rustc_lint::{LateContext, LintContext};
 use rustc_session::Session;
 use rustc_span::source_map::{original_sp, SourceMap};
-use rustc_span::{hygiene, BytePos, Pos, SourceFile, SourceFileAndLine, Span, SpanData, SyntaxContext, DUMMY_SP};
+use rustc_span::{hygiene, BytePos, SourceFileAndLine, Pos, SourceFile, Span, SpanData, SyntaxContext, DUMMY_SP};
 use std::borrow::Cow;
 use std::ops::Range;
 

tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr

@@ -19,8 +19,8 @@ LL |     const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"]
 error: hardcoded path to a diagnostic item
   --> tests/ui-internal/unnecessary_def_path_hardcoded_path.rs:12:43
    |
-LL |     const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref", "deref"];
-   |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+LL |     const OPS_MOD: [&str; 5] = ["core", "ops"];
+   |                                ^^^^^^^^^^^^^^^
    |
    = help: convert all references to use `sym::deref_method`
 

tests/ui/derive.rs

@@ -1,6 +1,7 @@
 #![allow(clippy::non_canonical_clone_impl, clippy::non_canonical_partial_ord_impl, dead_code)]
 #![warn(clippy::expl_impl_clone_on_copy)]
 
+
 #[derive(Copy)]
 struct Qux;
 

tests/ui/derive.stderr

@@ -1,5 +1,5 @@
 error: you are implementing `Clone` explicitly on a `Copy` type
-  --> tests/ui/derive.rs:7:1
+  --> tests/ui/derive.rs:8:1
    |
 LL | / impl Clone for Qux {
 LL | |
@@ -10,7 +10,7 @@ LL | | }
    | |_^
    |
 note: consider deriving `Clone` or removing `Copy`
-  --> tests/ui/derive.rs:7:1
+  --> tests/ui/derive.rs:8:1
    |
 LL | / impl Clone for Qux {
 LL | |
@@ -23,7 +23,7 @@ LL | | }
    = help: to override `-D warnings` add `#[allow(clippy::expl_impl_clone_on_copy)]`
 
 error: you are implementing `Clone` explicitly on a `Copy` type
-  --> tests/ui/derive.rs:32:1
+  --> tests/ui/derive.rs:33:1
    |
 LL | / impl<'a> Clone for Lt<'a> {
 LL | |
@@ -34,7 +34,7 @@ LL | | }
    | |_^
    |
 note: consider deriving `Clone` or removing `Copy`
-  --> tests/ui/derive.rs:32:1
+  --> tests/ui/derive.rs:33:1
    |
 LL | / impl<'a> Clone for Lt<'a> {
 LL | |
@@ -45,7 +45,7 @@ LL | | }
    | |_^
 
 error: you are implementing `Clone` explicitly on a `Copy` type
-  --> tests/ui/derive.rs:44:1
+  --> tests/ui/derive.rs:45:1
    |
 LL | / impl Clone for BigArray {
 LL | |
@@ -56,7 +56,7 @@ LL | | }
    | |_^
    |
 note: consider deriving `Clone` or removing `Copy`
-  --> tests/ui/derive.rs:44:1
+  --> tests/ui/derive.rs:45:1
    |
 LL | / impl Clone for BigArray {
 LL | |
@@ -67,7 +67,7 @@ LL | | }
    | |_^
 
 error: you are implementing `Clone` explicitly on a `Copy` type
-  --> tests/ui/derive.rs:56:1
+  --> tests/ui/derive.rs:57:1
    |
 LL | / impl Clone for FnPtr {
 LL | |
@@ -78,7 +78,7 @@ LL | | }
    | |_^
    |
 note: consider deriving `Clone` or removing `Copy`
-  --> tests/ui/derive.rs:56:1
+  --> tests/ui/derive.rs:57:1
    |
 LL | / impl Clone for FnPtr {
 LL | |
@@ -89,7 +89,7 @@ LL | | }
    | |_^
 
 error: you are implementing `Clone` explicitly on a `Copy` type
-  --> tests/ui/derive.rs:77:1
+  --> tests/ui/derive.rs:78:1
    |
 LL | / impl<T: Clone> Clone for Generic2<T> {
 LL | |
@@ -100,7 +100,7 @@ LL | | }
    | |_^
    |
 note: consider deriving `Clone` or removing `Copy`
-  --> tests/ui/derive.rs:77:1
+  --> tests/ui/derive.rs:78:1
    |
 LL | / impl<T: Clone> Clone for Generic2<T> {
 LL | |

tests/ui/needless_doc_main.rs

@@ -10,23 +10,23 @@
 ///     unimplemented!();
 /// }
 /// ```
-/// 
+///
 /// With an explicit return type it should lint too
 /// ```edition2015
 /// fn main() -> () {
 //~^ ERROR: needless `fn main` in doctest
 ///     unimplemented!();
 /// }
 /// ```
-/// 
+///
 /// This should, too.
 /// ```rust
 /// fn main() {
 //~^ ERROR: needless `fn main` in doctest
 ///     unimplemented!();
 /// }
 /// ```
-/// 
+///
 /// This one too.
 /// ```no_run
 /// // the fn is not always the first line

tests/ui/temporary_assignment.rs

@@ -1,4 +1,5 @@
 #![warn(clippy::temporary_assignment)]
+#![allow(const_item_mutation)]
 
 use std::ops::{Deref, DerefMut};
 

tests/ui/temporary_assignment.stderr

@@ -1,5 +1,5 @@
 error: assignment to temporary
-  --> tests/ui/temporary_assignment.rs:47:5
+  --> tests/ui/temporary_assignment.rs:48:5
    |
 LL |     Struct { field: 0 }.field = 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -8,7 +8,7 @@ LL |     Struct { field: 0 }.field = 1;
    = help: to override `-D warnings` add `#[allow(clippy::temporary_assignment)]`
 
 error: assignment to temporary
-  --> tests/ui/temporary_assignment.rs:50:5
+  --> tests/ui/temporary_assignment.rs:51:5
    |
 LL | /     MultiStruct {
 LL | |
@@ -19,13 +19,13 @@ LL | |     .field = 1;
    | |______________^
 
 error: assignment to temporary
-  --> tests/ui/temporary_assignment.rs:56:5
+  --> tests/ui/temporary_assignment.rs:57:5
    |
 LL |     ArrayStruct { array: [0] }.array[0] = 1;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: assignment to temporary
-  --> tests/ui/temporary_assignment.rs:58:5
+  --> tests/ui/temporary_assignment.rs:59:5
    |
 LL |     (0, 0).0 = 1;
    |     ^^^^^^^^^^^^