Auto merge of rust-lang#128853 - matthiaskrgr:rollup-pr222x1, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#128640 (rwlock: disable 'frob' test in Miri on macOS)
 - rust-lang#128791 (Don't implement `AsyncFn` for `FnDef`/`FnPtr` that wouldnt implement `Fn`)
 - rust-lang#128806 (Split `ColorConfig` off of `HumanReadableErrorType`)
 - rust-lang#128818 (std float tests: special-case Miri in feature detection)
 - rust-lang#128834 (rustdoc: strip unreachable modules)
 - rust-lang#128836 (rustdoc-json: add a test for impls on private & hidden types)
 - rust-lang#128837 (Clippy subtree update)
 - rust-lang#128851 (Add comment that bors did not see pushed before it merged)

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

Author: bors

Diff for: Cargo.lock

@@ -564,14 +564,15 @@ dependencies = [
  "termize",
  "tokio",
  "toml 0.7.8",
- "ui_test 0.24.0",
+ "ui_test 0.25.0",
  "walkdir",
 ]
 
 [[package]]
 name = "clippy_config"
 version = "0.1.82"
 dependencies = [
+ "itertools",
  "rustc-semver",
  "serde",
  "toml 0.7.8",
@@ -4936,9 +4937,9 @@ dependencies = [
 
 [[package]]
 name = "spanned"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed14ba8b4b82241bd5daba2c49185d4a0581a0058355fe96537338f002b8605d"
+checksum = "86af297923fbcfd107c20a189a6e9c872160df71a7190ae4a7a6c5dce4b2feb6"
 dependencies = [
  "bstr",
  "color-eyre",
@@ -5562,9 +5563,9 @@ dependencies = [
 
 [[package]]
 name = "ui_test"
-version = "0.24.0"
+version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc1c6c78d55482388711c8d417b8e547263046a607512278fed274c54633bbe4"
+checksum = "f7e4f339f62edc873975c47115f9e71c5454ddaa37c1142b42fc0b2672c8dacb"
 dependencies = [
  "annotate-snippets 0.11.4",
  "anyhow",

Diff for: compiler/rustc_errors/src/emitter.rs

@@ -43,19 +43,14 @@ const DEFAULT_COLUMN_WIDTH: usize = 140;
 /// Describes the way the content of the `rendered` field of the json output is generated
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum HumanReadableErrorType {
-    Default(ColorConfig),
-    AnnotateSnippet(ColorConfig),
-    Short(ColorConfig),
+    Default,
+    AnnotateSnippet,
+    Short,
 }
 
 impl HumanReadableErrorType {
-    /// Returns a (`short`, `color`) tuple
-    pub fn unzip(self) -> (bool, ColorConfig) {
-        match self {
-            HumanReadableErrorType::Default(cc) => (false, cc),
-            HumanReadableErrorType::Short(cc) => (true, cc),
-            HumanReadableErrorType::AnnotateSnippet(cc) => (false, cc),
-        }
+    pub fn short(&self) -> bool {
+        *self == HumanReadableErrorType::Short
     }
 }
 

Diff for: compiler/rustc_errors/src/json.rs

@@ -55,6 +55,7 @@ pub struct JsonEmitter {
     ignored_directories_in_source_blocks: Vec<String>,
     #[setters(skip)]
     json_rendered: HumanReadableErrorType,
+    color_config: ColorConfig,
     diagnostic_width: Option<usize>,
     macro_backtrace: bool,
     track_diagnostics: bool,
@@ -68,6 +69,7 @@ impl JsonEmitter {
         fallback_bundle: LazyFallbackBundle,
         pretty: bool,
         json_rendered: HumanReadableErrorType,
+        color_config: ColorConfig,
     ) -> JsonEmitter {
         JsonEmitter {
             dst: IntoDynSyncSend(dst),
@@ -79,6 +81,7 @@ impl JsonEmitter {
             ui_testing: false,
             ignored_directories_in_source_blocks: Vec::new(),
             json_rendered,
+            color_config,
             diagnostic_width: None,
             macro_backtrace: false,
             track_diagnostics: false,
@@ -173,7 +176,7 @@ impl Emitter for JsonEmitter {
     }
 
     fn should_show_explain(&self) -> bool {
-        !matches!(self.json_rendered, HumanReadableErrorType::Short(_))
+        !self.json_rendered.short()
     }
 }
 
@@ -353,8 +356,8 @@ impl Diagnostic {
 
         let buf = BufWriter::default();
         let mut dst: Destination = Box::new(buf.clone());
-        let (short, color_config) = je.json_rendered.unzip();
-        match color_config {
+        let short = je.json_rendered.short();
+        match je.color_config {
             ColorConfig::Always | ColorConfig::Auto => dst = Box::new(termcolor::Ansi::new(dst)),
             ColorConfig::Never => {}
         }

Diff for: compiler/rustc_errors/src/json/tests.rs

@@ -50,7 +50,8 @@ fn test_positions(code: &str, span: (u32, u32), expected_output: SpanTestData) {
             sm,
             fallback_bundle,
             true, // pretty
-            HumanReadableErrorType::Short(ColorConfig::Never),
+            HumanReadableErrorType::Short,
+            ColorConfig::Never,
         );
 
         let span = Span::with_root_ctxt(BytePos(span.0), BytePos(span.1));

Diff for: compiler/rustc_interface/src/passes.rs

@@ -818,8 +818,14 @@ fn run_required_analyses(tcx: TyCtxt<'_>) {
     });
     sess.time("layout_testing", || layout_test::test_layout(tcx));
     sess.time("abi_testing", || abi_test::test_abi(tcx));
+
+    // If `-Zvalidate-mir` is set, we also want to compute the final MIR for each item
+    // (either its `mir_for_ctfe` or `optimized_mir`) since that helps uncover any bugs
+    // in MIR optimizations that may only be reachable through codegen, or other codepaths
+    // that requires the optimized/ctfe MIR, such as polymorphization, coroutine bodies,
+    // or evaluating consts.
     if tcx.sess.opts.unstable_opts.validate_mir {
-        sess.time("ensuring_optimized_MIR_is_computable", || {
+        sess.time("ensuring_final_MIR_is_computable", || {
             tcx.hir().par_body_owners(|def_id| {
                 tcx.instance_mir(ty::InstanceKind::Item(def_id.into()));
             });

Diff for: compiler/rustc_interface/src/tests.rs

@@ -315,7 +315,8 @@ fn test_search_paths_tracking_hash_different_order() {
     let early_dcx = EarlyDiagCtxt::new(JSON);
     const JSON: ErrorOutputType = ErrorOutputType::Json {
         pretty: false,
-        json_rendered: HumanReadableErrorType::Default(ColorConfig::Never),
+        json_rendered: HumanReadableErrorType::Default,
+        color_config: ColorConfig::Never,
     };
 
     let push = |opts: &mut Options, search_path| {

Diff for: compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs

@@ -458,28 +458,23 @@ pub(in crate::solve) fn extract_tupled_inputs_and_output_from_async_callable<I:
             ))
         }
 
-        ty::FnDef(..) | ty::FnPtr(..) => {
-            let bound_sig = self_ty.fn_sig(cx);
-            let sig = bound_sig.skip_binder();
-            let future_trait_def_id = cx.require_lang_item(TraitSolverLangItem::Future);
-            // `FnDef` and `FnPtr` only implement `AsyncFn*` when their
-            // return type implements `Future`.
-            let nested = vec![
-                bound_sig
-                    .rebind(ty::TraitRef::new(cx, future_trait_def_id, [sig.output()]))
-                    .upcast(cx),
-            ];
-            let future_output_def_id = cx.require_lang_item(TraitSolverLangItem::FutureOutput);
-            let future_output_ty = Ty::new_projection(cx, future_output_def_id, [sig.output()]);
-            Ok((
-                bound_sig.rebind(AsyncCallableRelevantTypes {
-                    tupled_inputs_ty: Ty::new_tup(cx, sig.inputs().as_slice()),
-                    output_coroutine_ty: sig.output(),
-                    coroutine_return_ty: future_output_ty,
-                }),
-                nested,
-            ))
+        ty::FnDef(def_id, _) => {
+            let sig = self_ty.fn_sig(cx);
+            if sig.skip_binder().is_fn_trait_compatible() && !cx.has_target_features(def_id) {
+                fn_item_to_async_callable(cx, sig)
+            } else {
+                Err(NoSolution)
+            }
+        }
+        ty::FnPtr(..) => {
+            let sig = self_ty.fn_sig(cx);
+            if sig.skip_binder().is_fn_trait_compatible() {
+                fn_item_to_async_callable(cx, sig)
+            } else {
+                Err(NoSolution)
+            }
         }
+
         ty::Closure(_, args) => {
             let args = args.as_closure();
             let bound_sig = args.sig();
@@ -563,6 +558,29 @@ pub(in crate::solve) fn extract_tupled_inputs_and_output_from_async_callable<I:
     }
 }
 
+fn fn_item_to_async_callable<I: Interner>(
+    cx: I,
+    bound_sig: ty::Binder<I, ty::FnSig<I>>,
+) -> Result<(ty::Binder<I, AsyncCallableRelevantTypes<I>>, Vec<I::Predicate>), NoSolution> {
+    let sig = bound_sig.skip_binder();
+    let future_trait_def_id = cx.require_lang_item(TraitSolverLangItem::Future);
+    // `FnDef` and `FnPtr` only implement `AsyncFn*` when their
+    // return type implements `Future`.
+    let nested = vec![
+        bound_sig.rebind(ty::TraitRef::new(cx, future_trait_def_id, [sig.output()])).upcast(cx),
+    ];
+    let future_output_def_id = cx.require_lang_item(TraitSolverLangItem::FutureOutput);
+    let future_output_ty = Ty::new_projection(cx, future_output_def_id, [sig.output()]);
+    Ok((
+        bound_sig.rebind(AsyncCallableRelevantTypes {
+            tupled_inputs_ty: Ty::new_tup(cx, sig.inputs().as_slice()),
+            output_coroutine_ty: sig.output(),
+            coroutine_return_ty: future_output_ty,
+        }),
+        nested,
+    ))
+}
+
 /// Given a coroutine-closure, project to its returned coroutine when we are *certain*
 /// that the closure's kind is compatible with the goal.
 fn coroutine_closure_to_certain_coroutine<I: Interner>(

Diff for: compiler/rustc_session/src/config.rs

@@ -602,20 +602,21 @@ impl OutputType {
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum ErrorOutputType {
     /// Output meant for the consumption of humans.
-    HumanReadable(HumanReadableErrorType),
+    HumanReadable(HumanReadableErrorType, ColorConfig),
     /// Output that's consumed by other tools such as `rustfix` or the `RLS`.
     Json {
         /// Render the JSON in a human readable way (with indents and newlines).
         pretty: bool,
         /// The JSON output includes a `rendered` field that includes the rendered
         /// human output.
         json_rendered: HumanReadableErrorType,
+        color_config: ColorConfig,
     },
 }
 
 impl Default for ErrorOutputType {
     fn default() -> Self {
-        Self::HumanReadable(HumanReadableErrorType::Default(ColorConfig::Auto))
+        Self::HumanReadable(HumanReadableErrorType::Default, ColorConfig::Auto)
     }
 }
 
@@ -1631,6 +1632,7 @@ pub fn parse_color(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> Col
 /// Possible json config files
 pub struct JsonConfig {
     pub json_rendered: HumanReadableErrorType,
+    pub json_color: ColorConfig,
     json_artifact_notifications: bool,
     pub json_unused_externs: JsonUnusedExterns,
     json_future_incompat: bool,
@@ -1668,8 +1670,7 @@ impl JsonUnusedExterns {
 /// The first value returned is how to render JSON diagnostics, and the second
 /// is whether or not artifact notifications are enabled.
 pub fn parse_json(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> JsonConfig {
-    let mut json_rendered: fn(ColorConfig) -> HumanReadableErrorType =
-        HumanReadableErrorType::Default;
+    let mut json_rendered = HumanReadableErrorType::Default;
     let mut json_color = ColorConfig::Never;
     let mut json_artifact_notifications = false;
     let mut json_unused_externs = JsonUnusedExterns::No;
@@ -1696,7 +1697,8 @@ pub fn parse_json(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> Json
     }
 
     JsonConfig {
-        json_rendered: json_rendered(json_color),
+        json_rendered,
+        json_color,
         json_artifact_notifications,
         json_unused_externs,
         json_future_incompat,
@@ -1708,6 +1710,7 @@ pub fn parse_error_format(
     early_dcx: &mut EarlyDiagCtxt,
     matches: &getopts::Matches,
     color: ColorConfig,
+    json_color: ColorConfig,
     json_rendered: HumanReadableErrorType,
 ) -> ErrorOutputType {
     // We need the `opts_present` check because the driver will send us Matches
@@ -1717,18 +1720,22 @@ pub fn parse_error_format(
     let error_format = if matches.opts_present(&["error-format".to_owned()]) {
         match matches.opt_str("error-format").as_deref() {
             None | Some("human") => {
-                ErrorOutputType::HumanReadable(HumanReadableErrorType::Default(color))
+                ErrorOutputType::HumanReadable(HumanReadableErrorType::Default, color)
             }
             Some("human-annotate-rs") => {
-                ErrorOutputType::HumanReadable(HumanReadableErrorType::AnnotateSnippet(color))
+                ErrorOutputType::HumanReadable(HumanReadableErrorType::AnnotateSnippet, color)
             }
-            Some("json") => ErrorOutputType::Json { pretty: false, json_rendered },
-            Some("pretty-json") => ErrorOutputType::Json { pretty: true, json_rendered },
-            Some("short") => ErrorOutputType::HumanReadable(HumanReadableErrorType::Short(color)),
-
+            Some("json") => {
+                ErrorOutputType::Json { pretty: false, json_rendered, color_config: json_color }
+            }
+            Some("pretty-json") => {
+                ErrorOutputType::Json { pretty: true, json_rendered, color_config: json_color }
+            }
+            Some("short") => ErrorOutputType::HumanReadable(HumanReadableErrorType::Short, color),
             Some(arg) => {
                 early_dcx.abort_if_error_and_set_error_format(ErrorOutputType::HumanReadable(
-                    HumanReadableErrorType::Default(color),
+                    HumanReadableErrorType::Default,
+                    color,
                 ));
                 early_dcx.early_fatal(format!(
                     "argument for `--error-format` must be `human`, `json` or \
@@ -1737,7 +1744,7 @@ pub fn parse_error_format(
             }
         }
     } else {
-        ErrorOutputType::HumanReadable(HumanReadableErrorType::Default(color))
+        ErrorOutputType::HumanReadable(HumanReadableErrorType::Default, color)
     };
 
     match error_format {
@@ -1791,7 +1798,7 @@ fn check_error_format_stability(
         if let ErrorOutputType::Json { pretty: true, .. } = error_format {
             early_dcx.early_fatal("`--error-format=pretty-json` is unstable");
         }
-        if let ErrorOutputType::HumanReadable(HumanReadableErrorType::AnnotateSnippet(_)) =
+        if let ErrorOutputType::HumanReadable(HumanReadableErrorType::AnnotateSnippet, _) =
             error_format
         {
             early_dcx.early_fatal("`--error-format=human-annotate-rs` is unstable");
@@ -2392,12 +2399,13 @@ pub fn build_session_options(early_dcx: &mut EarlyDiagCtxt, matches: &getopts::M
 
     let JsonConfig {
         json_rendered,
+        json_color,
         json_artifact_notifications,
         json_unused_externs,
         json_future_incompat,
     } = parse_json(early_dcx, matches);
 
-    let error_format = parse_error_format(early_dcx, matches, color, json_rendered);
+    let error_format = parse_error_format(early_dcx, matches, color, json_color, json_rendered);
 
     early_dcx.abort_if_error_and_set_error_format(error_format);