Auto merge of #97342 - JohnTitor:rollup-zqxctaw, r=JohnTitor

Rollup of 5 pull requests

Successful merges:

 - #97240 (Typo suggestion for a variable with a name similar to struct fields)
 - #97289 (Lifetime variance fixes for clippy)
 - #97290 (Turn on `fast_submodules` unconditionally)
 - #97336 (typo)
 - #97337 (Fix stabilization version of `Ipv6Addr::to_ipv4_mapped`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

compiler/rustc_interface/src/callbacks.rs

@@ -24,7 +24,7 @@ fn track_span_parent(def_id: rustc_span::def_id::LocalDefId) {
 }
 
 /// This is a callback from `rustc_ast` as it cannot access the implicit state
-/// in `rustc_middle` otherwise. It is used to when diagnostic messages are
+/// in `rustc_middle` otherwise. It is used when diagnostic messages are
 /// emitted and stores them in the current query, if there is one.
 fn track_diagnostic(diagnostic: &Diagnostic) {
     tls::with_context_opt(|icx| {

compiler/rustc_resolve/src/late/diagnostics.rs

@@ -445,6 +445,8 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> {
                 );
             }
         }
+        // Try Levenshtein algorithm.
+        let typo_sugg = self.lookup_typo_candidate(path, ns, is_expected);
         if path.len() == 1 && self.self_type_is_available() {
             if let Some(candidate) = self.lookup_assoc_candidate(ident, ns, is_expected) {
                 let self_is_available = self.self_value_is_available(path[0].ident.span);
@@ -454,7 +456,7 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> {
                             err.span_suggestion(
                                 span,
                                 "you might have meant to use the available field",
-                                format!("self.{}", path_str),
+                                format!("self.{path_str}"),
                                 Applicability::MachineApplicable,
                             );
                         } else {
@@ -465,7 +467,7 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> {
                         err.span_suggestion(
                             span,
                             "you might have meant to call the method",
-                            format!("self.{}", path_str),
+                            format!("self.{path_str}"),
                             Applicability::MachineApplicable,
                         );
                     }
@@ -476,11 +478,12 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> {
                         err.span_suggestion(
                             span,
                             &format!("you might have meant to {}", candidate.action()),
-                            format!("Self::{}", path_str),
+                            format!("Self::{path_str}"),
                             Applicability::MachineApplicable,
                         );
                     }
                 }
+                self.r.add_typo_suggestion(&mut err, typo_sugg, ident_span);
                 return (err, candidates);
             }
 
@@ -495,16 +498,14 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> {
 
                 err.span_suggestion(
                     call_span,
-                    &format!("try calling `{}` as a method", ident),
-                    format!("self.{}({})", path_str, args_snippet),
+                    &format!("try calling `{ident}` as a method"),
+                    format!("self.{path_str}({args_snippet})"),
                     Applicability::MachineApplicable,
                 );
                 return (err, candidates);
             }
         }
 
-        // Try Levenshtein algorithm.
-        let typo_sugg = self.lookup_typo_candidate(path, ns, is_expected);
         // Try context-dependent help if relaxed lookup didn't work.
         if let Some(res) = res {
             if self.smart_resolve_context_dependent_help(

config.toml.example

@@ -240,10 +240,6 @@ changelog-seen = 2
 # Indicate whether git submodules are managed and updated automatically.
 #submodules = true
 
-# Update git submodules only when the checked out commit in the submodules differs
-# from what is committed in the main rustc repo.
-#fast-submodules = true
-
 # The path to (or name of) the GDB executable to use. This is only used for
 # executing the debuginfo test suite.
 #gdb = "gdb"

library/std/src/net/ip.rs

@@ -1655,7 +1655,7 @@ impl Ipv6Addr {
     /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4_mapped(), None);
     /// ```
     #[rustc_const_unstable(feature = "const_ipv6", issue = "76205")]
-    #[stable(feature = "ipv6_to_ipv4_mapped", since = "1.62.0")]
+    #[stable(feature = "ipv6_to_ipv4_mapped", since = "1.63.0")]
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[inline]

src/bootstrap/CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - The options `infodir`, `localstatedir`, and `gpg-password-file` are no longer allowed in config.toml. Previously, they were ignored without warning. Note that `infodir` and `localstatedir` are still accepted by `./configure`, with a warning. [#82451](https://github.com/rust-lang/rust/pull/82451)
 - Add options for enabling overflow checks, one for std (`overflow-checks-std`) and one for everything else (`overflow-checks`). Both default to false.
 - Change the names for `dist` commands to match the component they generate. [#90684](https://github.com/rust-lang/rust/pull/90684)
+- The `build.fast-submodules` option has been removed. Fast submodule checkouts are enabled unconditionally. Automatic submodule handling can still be disabled with `build.submodules = false`.
 
 ### Non-breaking changes
 

src/bootstrap/bootstrap.py

@@ -926,23 +926,19 @@ def build_triple(self):
             return config
         return default_build_triple(self.verbose)
 
-    def check_submodule(self, module, slow_submodules):
-        if not slow_submodules:
-            checked_out = subprocess.Popen(["git", "rev-parse", "HEAD"],
-                                           cwd=os.path.join(self.rust_root, module),
-                                           stdout=subprocess.PIPE)
-            return checked_out
-        else:
-            return None
+    def check_submodule(self, module):
+        checked_out = subprocess.Popen(["git", "rev-parse", "HEAD"],
+                                        cwd=os.path.join(self.rust_root, module),
+                                        stdout=subprocess.PIPE)
+        return checked_out
 
     def update_submodule(self, module, checked_out, recorded_submodules):
         module_path = os.path.join(self.rust_root, module)
 
-        if checked_out is not None:
-            default_encoding = sys.getdefaultencoding()
-            checked_out = checked_out.communicate()[0].decode(default_encoding).strip()
-            if recorded_submodules[module] == checked_out:
-                return
+        default_encoding = sys.getdefaultencoding()
+        checked_out = checked_out.communicate()[0].decode(default_encoding).strip()
+        if recorded_submodules[module] == checked_out:
+            return
 
         print("Updating submodule", module)
 
@@ -991,12 +987,8 @@ def update_submodules(self):
         git_version_str = require(['git', '--version']).split()[2].decode(default_encoding)
         self.git_version = distutils.version.LooseVersion(git_version_str)
 
-        slow_submodules = self.get_toml('fast-submodules') == "false"
         start_time = time()
-        if slow_submodules:
-            print('Unconditionally updating submodules')
-        else:
-            print('Updating only changed submodules')
+        print('Updating only changed submodules')
         default_encoding = sys.getdefaultencoding()
         # Only update submodules that are needed to build bootstrap.  These are needed because Cargo
         # currently requires everything in a workspace to be "locally present" when starting a
@@ -1022,7 +1014,7 @@ def update_submodules(self):
         filtered_submodules = []
         submodules_names = []
         for module in submodules:
-            check = self.check_submodule(module, slow_submodules)
+            check = self.check_submodule(module)
             filtered_submodules.append((module, check))
             submodules_names.append(module)
         recorded = subprocess.Popen(["git", "ls-tree", "HEAD"] + submodules_names,

src/bootstrap/config.rs

@@ -50,7 +50,6 @@ pub struct Config {
     pub ninja_in_file: bool,
     pub verbose: usize,
     pub submodules: Option<bool>,
-    pub fast_submodules: bool,
     pub compiler_docs: bool,
     pub docs_minification: bool,
     pub docs: bool,
@@ -517,7 +516,6 @@ define_config! {
         compiler_docs: Option<bool> = "compiler-docs",
         docs_minification: Option<bool> = "docs-minification",
         submodules: Option<bool> = "submodules",
-        fast_submodules: Option<bool> = "fast-submodules",
         gdb: Option<String> = "gdb",
         nodejs: Option<String> = "nodejs",
         npm: Option<String> = "npm",
@@ -705,7 +703,6 @@ impl Config {
         config.rust_optimize = true;
         config.rust_optimize_tests = true;
         config.submodules = None;
-        config.fast_submodules = true;
         config.docs = true;
         config.docs_minification = true;
         config.rust_rpath = true;
@@ -847,7 +844,6 @@ impl Config {
         set(&mut config.compiler_docs, build.compiler_docs);
         set(&mut config.docs_minification, build.docs_minification);
         set(&mut config.docs, build.docs);
-        set(&mut config.fast_submodules, build.fast_submodules);
         set(&mut config.locked_deps, build.locked_deps);
         set(&mut config.vendor, build.vendor);
         set(&mut config.full_bootstrap, build.full_bootstrap);

src/bootstrap/lib.rs

@@ -556,27 +556,24 @@ impl Build {
         }
 
         // check_submodule
-        if self.config.fast_submodules {
-            let checked_out_hash = output(
-                Command::new("git").args(&["rev-parse", "HEAD"]).current_dir(&absolute_path),
-            );
-            // update_submodules
-            let recorded = output(
-                Command::new("git")
-                    .args(&["ls-tree", "HEAD"])
-                    .arg(relative_path)
-                    .current_dir(&self.config.src),
-            );
-            let actual_hash = recorded
-                .split_whitespace()
-                .nth(2)
-                .unwrap_or_else(|| panic!("unexpected output `{}`", recorded));
-
-            // update_submodule
-            if actual_hash == checked_out_hash.trim_end() {
-                // already checked out
-                return;
-            }
+        let checked_out_hash =
+            output(Command::new("git").args(&["rev-parse", "HEAD"]).current_dir(&absolute_path));
+        // update_submodules
+        let recorded = output(
+            Command::new("git")
+                .args(&["ls-tree", "HEAD"])
+                .arg(relative_path)
+                .current_dir(&self.config.src),
+        );
+        let actual_hash = recorded
+            .split_whitespace()
+            .nth(2)
+            .unwrap_or_else(|| panic!("unexpected output `{}`", recorded));
+
+        // update_submodule
+        if actual_hash == checked_out_hash.trim_end() {
+            // already checked out
+            return;
         }
 
         println!("Updating submodule {}", relative_path.display());

src/test/ui/resolve/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs

@@ -0,0 +1,46 @@
+struct A {
+    config: String,
+}
+
+impl A {
+    fn new(cofig: String) -> Self {
+        Self { config } //~ Error cannot find value `config` in this scope
+    }
+
+    fn do_something(cofig: String) {
+        println!("{config}"); //~ Error cannot find value `config` in this scope
+    }
+
+    fn self_is_available(self, cofig: String) {
+        println!("{config}"); //~ Error cannot find value `config` in this scope
+    }
+}
+
+trait B {
+    const BAR: u32 = 3;
+    type Baz;
+    fn bar(&self);
+    fn baz(&self) {}
+    fn bah() {}
+}
+
+impl B for Box<isize> {
+    type Baz = String;
+    fn bar(&self) {
+        // let baz = 3;
+        baz();
+        //~^ ERROR cannot find function `baz`
+        bah;
+        //~^ ERROR cannot find value `bah`
+        BAR;
+        //~^ ERROR cannot find value `BAR` in this scope
+        let foo: Baz = "".to_string();
+        //~^ ERROR cannot find type `Baz` in this scope
+    }
+}
+
+fn ba() {}
+const BARR: u32 = 3;
+type Bar = String;
+
+fn main() {}

src/test/ui/resolve/typo-suggestion-for-variable-with-name-similar-to-struct-field.stderr

@@ -0,0 +1,109 @@
+error[E0425]: cannot find value `config` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:7:16
+   |
+LL |         Self { config }
+   |                ^^^^^^
+   |                |
+   |                a field by this name exists in `Self`
+   |                help: a local variable with a similar name exists: `cofig`
+
+error[E0425]: cannot find value `config` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:11:20
+   |
+LL |         println!("{config}");
+   |                    ^^^^^^
+   |                    |
+   |                    a field by this name exists in `Self`
+   |                    help: a local variable with a similar name exists: `cofig`
+
+error[E0425]: cannot find value `config` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:15:20
+   |
+LL |         println!("{config}");
+   |                    ^^^^^^
+   |
+help: you might have meant to use the available field
+   |
+LL |         println!("{self.config}");
+   |                    ~~~~~~~~~~~
+help: a local variable with a similar name exists
+   |
+LL |         println!("{cofig}");
+   |                    ~~~~~
+
+error[E0425]: cannot find function `baz` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:31:9
+   |
+LL |         baz();
+   |         ^^^
+...
+LL | fn ba() {}
+   | ------- similarly named function `ba` defined here
+   |
+help: you might have meant to call the method
+   |
+LL |         self.baz();
+   |         ~~~~~~~~
+help: a function with a similar name exists
+   |
+LL |         ba();
+   |         ~~
+
+error[E0425]: cannot find value `bah` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:33:9
+   |
+LL |         bah;
+   |         ^^^
+...
+LL | fn ba() {}
+   | ------- similarly named function `ba` defined here
+   |
+help: you might have meant to call the associated function
+   |
+LL |         Self::bah;
+   |         ~~~~~~~~~
+help: a function with a similar name exists
+   |
+LL |         ba;
+   |         ~~
+
+error[E0425]: cannot find value `BAR` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:35:9
+   |
+LL |         BAR;
+   |         ^^^
+...
+LL | const BARR: u32 = 3;
+   | -------------------- similarly named constant `BARR` defined here
+   |
+help: you might have meant to use the associated `const`
+   |
+LL |         Self::BAR;
+   |         ~~~~~~~~~
+help: a constant with a similar name exists
+   |
+LL |         BARR;
+   |         ~~~~
+
+error[E0412]: cannot find type `Baz` in this scope
+  --> $DIR/typo-suggestion-for-variable-with-name-similar-to-struct-field.rs:37:18
+   |
+LL |         let foo: Baz = "".to_string();
+   |                  ^^^
+...
+LL | type Bar = String;
+   | ------------------ similarly named type alias `Bar` defined here
+   |
+help: you might have meant to use the associated type
+   |
+LL |         let foo: Self::Baz = "".to_string();
+   |                  ~~~~~~~~~
+help: a type alias with a similar name exists
+   |
+LL |         let foo: Bar = "".to_string();
+   |                  ~~~
+
+error: aborting due to 7 previous errors
+
+Some errors have detailed explanations: E0412, E0425.
+For more information about an error, try `rustc --explain E0412`.