Rollup of 6 pull requests

compiler/rustc_feature/src/builtin_attrs.rs

@@ -390,20 +390,21 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
 
     // Entry point:
     gated!(unix_sigpipe, Normal, template!(Word, NameValueStr: "inherit|sig_ign|sig_dfl"), ErrorFollowing, experimental!(unix_sigpipe)),
-    ungated!(start, Normal, template!(Word), WarnFollowing),
-    ungated!(no_start, CrateLevel, template!(Word), WarnFollowing),
-    ungated!(no_main, CrateLevel, template!(Word), WarnFollowing),
+    ungated!(start, Normal, template!(Word), WarnFollowing, @only_local: true),
+    ungated!(no_start, CrateLevel, template!(Word), WarnFollowing, @only_local: true),
+    ungated!(no_main, CrateLevel, template!(Word), WarnFollowing, @only_local: true),
 
     // Modules, prelude, and resolution:
-    ungated!(path, Normal, template!(NameValueStr: "file"), FutureWarnFollowing),
-    ungated!(no_std, CrateLevel, template!(Word), WarnFollowing),
-    ungated!(no_implicit_prelude, Normal, template!(Word), WarnFollowing),
+    ungated!(path, Normal, template!(NameValueStr: "file"), FutureWarnFollowing, @only_local: true),
+    ungated!(no_std, CrateLevel, template!(Word), WarnFollowing, @only_local: true),
+    ungated!(no_implicit_prelude, Normal, template!(Word), WarnFollowing, @only_local: true),
     ungated!(non_exhaustive, Normal, template!(Word), WarnFollowing),
 
     // Runtime
     ungated!(
         windows_subsystem, CrateLevel,
-        template!(NameValueStr: "windows|console"), FutureWarnFollowing
+        template!(NameValueStr: "windows|console"), FutureWarnFollowing,
+        @only_local: true
     ),
     ungated!(panic_handler, Normal, template!(Word), WarnFollowing), // RFC 2070
 
@@ -416,13 +417,17 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
         DuplicatesOk, @only_local: true,
     ),
     ungated!(track_caller, Normal, template!(Word), WarnFollowing),
-    ungated!(instruction_set, Normal, template!(List: "set"), ErrorPreceding),
+    ungated!(instruction_set, Normal, template!(List: "set"), ErrorPreceding, @only_local: true),
     gated!(
         no_sanitize, Normal,
         template!(List: "address, kcfi, memory, thread"), DuplicatesOk,
-        experimental!(no_sanitize)
+        @only_local: true, experimental!(no_sanitize)
+    ),
+    gated!(
+        coverage, Normal, template!(Word, List: "on|off"),
+        WarnFollowing, @only_local: true,
+        coverage_attribute, experimental!(coverage)
     ),
-    gated!(coverage, Normal, template!(Word, List: "on|off"), WarnFollowing, coverage_attribute, experimental!(coverage)),
 
     ungated!(
         doc, Normal, template!(List: "hidden|inline|...", NameValueStr: "string"), DuplicatesOk
@@ -431,7 +436,8 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
     // Debugging
     ungated!(
         debugger_visualizer, Normal,
-        template!(List: r#"natvis_file = "...", gdb_script_file = "...""#), DuplicatesOk
+        template!(List: r#"natvis_file = "...", gdb_script_file = "...""#),
+        DuplicatesOk, @only_local: true
     ),
 
     // ==========================================================================
@@ -455,26 +461,35 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
         marker_trait_attr, experimental!(marker)
     ),
     gated!(
-        thread_local, Normal, template!(Word), WarnFollowing,
+        thread_local, Normal, template!(Word), WarnFollowing, @only_local: true,
         "`#[thread_local]` is an experimental feature, and does not currently handle destructors",
     ),
-    gated!(no_core, CrateLevel, template!(Word), WarnFollowing, experimental!(no_core)),
+    gated!(
+        no_core, CrateLevel, template!(Word), WarnFollowing,
+        @only_local: true, experimental!(no_core)
+    ),
     // RFC 2412
     gated!(
-        optimize, Normal, template!(List: "size|speed"), ErrorPreceding, optimize_attribute,
-        experimental!(optimize),
+        optimize, Normal, template!(List: "size|speed"), ErrorPreceding,
+        @only_local: true, optimize_attribute, experimental!(optimize)
     ),
 
-    gated!(ffi_pure, Normal, template!(Word), WarnFollowing, experimental!(ffi_pure)),
-    gated!(ffi_const, Normal, template!(Word), WarnFollowing, experimental!(ffi_const)),
+    gated!(
+        ffi_pure, Normal, template!(Word), WarnFollowing,
+        @only_local: true, experimental!(ffi_pure)
+    ),
+    gated!(
+        ffi_const, Normal, template!(Word), WarnFollowing,
+        @only_local: true, experimental!(ffi_const)
+    ),
     gated!(
         register_tool, CrateLevel, template!(List: "tool1, tool2, ..."), DuplicatesOk,
-        experimental!(register_tool),
+        @only_local: true, experimental!(register_tool),
     ),
 
     gated!(
         cmse_nonsecure_entry, Normal, template!(Word), WarnFollowing,
-        experimental!(cmse_nonsecure_entry)
+        @only_local: true, experimental!(cmse_nonsecure_entry)
     ),
     // RFC 2632
     gated!(
@@ -492,11 +507,14 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
     // `#[collapse_debuginfo]`
     gated!(
         collapse_debuginfo, Normal, template!(Word, List: "no|external|yes"), ErrorFollowing,
-        experimental!(collapse_debuginfo)
+        @only_local: true, experimental!(collapse_debuginfo)
     ),
 
     // RFC 2397
-    gated!(do_not_recommend, Normal, template!(Word), WarnFollowing, experimental!(do_not_recommend)),
+    gated!(
+        do_not_recommend, Normal, template!(Word), WarnFollowing,
+        @only_local: true, experimental!(do_not_recommend)
+    ),
 
     // `#[cfi_encoding = ""]`
     gated!(
@@ -528,7 +546,8 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
     ),
     ungated!(
         rustc_default_body_unstable, Normal,
-        template!(List: r#"feature = "name", reason = "...", issue = "N""#), DuplicatesOk
+        template!(List: r#"feature = "name", reason = "...", issue = "N""#),
+        DuplicatesOk, @only_local: true
     ),
     gated!(
         allow_internal_unstable, Normal, template!(Word, List: "feat1, feat2, ..."), DuplicatesOk,

compiler/rustc_lint/src/internal.rs

@@ -4,7 +4,6 @@
 use crate::lints::{
     BadOptAccessDiag, DefaultHashTypesDiag, DiagOutOfImpl, LintPassByHand, NonExistentDocKeyword,
     QueryInstability, SpanUseEqCtxtDiag, TyQualified, TykindDiag, TykindKind, UntranslatableDiag,
-    UntranslatableDiagnosticTrivial,
 };
 use crate::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext};
 use rustc_ast as ast;
@@ -361,15 +360,7 @@ declare_tool_lint! {
     report_in_external_macro: true
 }
 
-declare_tool_lint! {
-    /// The `untranslatable_diagnostic_trivial` lint detects diagnostics created using only static strings.
-    pub rustc::UNTRANSLATABLE_DIAGNOSTIC_TRIVIAL,
-    Deny,
-    "prevent creation of diagnostics which cannot be translated, which use only static strings",
-    report_in_external_macro: true
-}
-
-declare_lint_pass!(Diagnostics => [ UNTRANSLATABLE_DIAGNOSTIC, DIAGNOSTIC_OUTSIDE_OF_IMPL, UNTRANSLATABLE_DIAGNOSTIC_TRIVIAL ]);
+declare_lint_pass!(Diagnostics => [UNTRANSLATABLE_DIAGNOSTIC, DIAGNOSTIC_OUTSIDE_OF_IMPL]);
 
 impl LateLintPass<'_> for Diagnostics {
     fn check_expr(&mut self, cx: &LateContext<'_>, expr: &Expr<'_>) {
@@ -425,78 +416,6 @@ impl LateLintPass<'_> for Diagnostics {
     }
 }
 
-impl EarlyLintPass for Diagnostics {
-    #[allow(unused_must_use)]
-    fn check_stmt(&mut self, cx: &EarlyContext<'_>, stmt: &ast::Stmt) {
-        // Looking for a straight chain of method calls from 'struct_span_err' to 'emit'.
-        let ast::StmtKind::Semi(expr) = &stmt.kind else {
-            return;
-        };
-        let ast::ExprKind::MethodCall(meth) = &expr.kind else {
-            return;
-        };
-        if meth.seg.ident.name != sym::emit || !meth.args.is_empty() {
-            return;
-        }
-        let mut segments = vec![];
-        let mut cur = &meth.receiver;
-        let fake = &[].into();
-        loop {
-            match &cur.kind {
-                ast::ExprKind::Call(func, args) => {
-                    if let ast::ExprKind::Path(_, path) = &func.kind {
-                        segments.push((path.segments.last().unwrap().ident.name, args))
-                    }
-                    break;
-                }
-                ast::ExprKind::MethodCall(method) => {
-                    segments.push((method.seg.ident.name, &method.args));
-                    cur = &method.receiver;
-                }
-                ast::ExprKind::MacCall(mac) => {
-                    segments.push((mac.path.segments.last().unwrap().ident.name, fake));
-                    break;
-                }
-                _ => {
-                    break;
-                }
-            }
-        }
-        segments.reverse();
-        if segments.is_empty() {
-            return;
-        }
-        if segments[0].0.as_str() != "struct_span_err" {
-            return;
-        }
-        if !segments.iter().all(|(name, args)| {
-            let arg = match name.as_str() {
-                "struct_span_err" | "span_note" | "span_label" | "span_help" if args.len() == 2 => {
-                    &args[1]
-                }
-                "note" | "help" if args.len() == 1 => &args[0],
-                _ => {
-                    return false;
-                }
-            };
-            if let ast::ExprKind::Lit(lit) = arg.kind
-                && let ast::token::LitKind::Str = lit.kind
-            {
-                true
-            } else {
-                false
-            }
-        }) {
-            return;
-        }
-        cx.emit_span_lint(
-            UNTRANSLATABLE_DIAGNOSTIC_TRIVIAL,
-            stmt.span,
-            UntranslatableDiagnosticTrivial,
-        );
-    }
-}
-
 declare_tool_lint! {
     /// The `bad_opt_access` lint detects accessing options by field instead of
     /// the wrapper function.

compiler/rustc_lint/src/lib.rs

@@ -550,7 +550,6 @@ fn register_internals(store: &mut LintStore) {
     store.register_lints(&TyTyKind::get_lints());
     store.register_late_mod_pass(|_| Box::new(TyTyKind));
     store.register_lints(&Diagnostics::get_lints());
-    store.register_early_pass(|| Box::new(Diagnostics));
     store.register_late_mod_pass(|_| Box::new(Diagnostics));
     store.register_lints(&BadOptAccess::get_lints());
     store.register_late_mod_pass(|_| Box::new(BadOptAccess));

compiler/rustc_lint/src/lints.rs

@@ -923,10 +923,6 @@ pub struct DiagOutOfImpl;
 #[diag(lint_untranslatable_diag)]
 pub struct UntranslatableDiag;
 
-#[derive(LintDiagnostic)]
-#[diag(lint_trivial_untranslatable_diag)]
-pub struct UntranslatableDiagnosticTrivial;
-
 #[derive(LintDiagnostic)]
 #[diag(lint_bad_opt_access)]
 pub struct BadOptAccessDiag<'a> {

compiler/rustc_resolve/src/diagnostics.rs

@@ -1294,10 +1294,20 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
                     let mut path_segments = path_segments.clone();
                     path_segments.push(ast::PathSegment::from_ident(ident));
 
+                    let alias_import = if let NameBindingKind::Import { import, .. } =
+                        name_binding.kind
+                        && let ImportKind::ExternCrate { source: Some(_), .. } = import.kind
+                        && import.parent_scope.expansion == parent_scope.expansion
+                    {
+                        true
+                    } else {
+                        false
+                    };
+
                     let is_extern_crate_that_also_appears_in_prelude =
                         name_binding.is_extern_crate() && lookup_ident.span.at_least_rust_2018();
 
-                    if !is_extern_crate_that_also_appears_in_prelude {
+                    if !is_extern_crate_that_also_appears_in_prelude || alias_import {
                         // add the module to the lookup
                         if seen_modules.insert(module.def_id()) {
                             if via_import { &mut worklist_via_import } else { &mut worklist }

library/std/src/ffi/mod.rs

@@ -169,6 +169,7 @@ pub use core::ffi::FromBytesUntilNulError;
 pub use core::ffi::{CStr, FromBytesWithNulError};
 
 #[stable(feature = "rust1", since = "1.0.0")]
+#[doc(inline)]
 pub use self::os_str::{OsStr, OsString};
 
 #[stable(feature = "core_ffi_c", since = "1.64.0")]
@@ -188,4 +189,5 @@ pub use core::ffi::c_void;
 )]
 pub use core::ffi::{VaList, VaListImpl};
 
-mod os_str;
+#[unstable(feature = "os_str_display", issue = "120048")]
+pub mod os_str;

library/std/src/ffi/os_str.rs

@@ -1,3 +1,5 @@
+//! The [`OsStr`] and [`OsString`] types and associated utilities.
+
 #[cfg(test)]
 mod tests;
 
@@ -1147,6 +1149,32 @@ impl OsStr {
     pub fn eq_ignore_ascii_case<S: AsRef<OsStr>>(&self, other: S) -> bool {
         self.inner.eq_ignore_ascii_case(&other.as_ref().inner)
     }
+
+    /// Returns an object that implements [`Display`] for safely printing an
+    /// [`OsStr`] that may contain non-Unicode data. This may perform lossy
+    /// conversion, depending on the platform.  If you would like an
+    /// implementation which escapes the [`OsStr`] please use [`Debug`]
+    /// instead.
+    ///
+    /// [`Display`]: fmt::Display
+    /// [`Debug`]: fmt::Debug
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// #![feature(os_str_display)]
+    /// use std::ffi::OsStr;
+    ///
+    /// let s = OsStr::new("Hello, world!");
+    /// println!("{}", s.display());
+    /// ```
+    #[unstable(feature = "os_str_display", issue = "120048")]
+    #[must_use = "this does not display the `OsStr`; \
+                  it returns an object that can be displayed"]
+    #[inline]
+    pub fn display(&self) -> Display<'_> {
+        Display { os_str: self }
+    }
 }
 
 #[stable(feature = "box_from_os_str", since = "1.17.0")]
@@ -1441,9 +1469,42 @@ impl fmt::Debug for OsStr {
     }
 }
 
-impl OsStr {
-    pub(crate) fn display(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
-        fmt::Display::fmt(&self.inner, formatter)
+/// Helper struct for safely printing an [`OsStr`] with [`format!`] and `{}`.
+///
+/// An [`OsStr`] might contain non-Unicode data. This `struct` implements the
+/// [`Display`] trait in a way that mitigates that. It is created by the
+/// [`display`](OsStr::display) method on [`OsStr`]. This may perform lossy
+/// conversion, depending on the platform. If you would like an implementation
+/// which escapes the [`OsStr`] please use [`Debug`] instead.
+///
+/// # Examples
+///
+/// ```
+/// #![feature(os_str_display)]
+/// use std::ffi::OsStr;
+///
+/// let s = OsStr::new("Hello, world!");
+/// println!("{}", s.display());
+/// ```
+///
+/// [`Display`]: fmt::Display
+/// [`format!`]: crate::format
+#[unstable(feature = "os_str_display", issue = "120048")]
+pub struct Display<'a> {
+    os_str: &'a OsStr,
+}
+
+#[unstable(feature = "os_str_display", issue = "120048")]
+impl fmt::Debug for Display<'_> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        fmt::Debug::fmt(&self.os_str, f)
+    }
+}
+
+#[unstable(feature = "os_str_display", issue = "120048")]
+impl fmt::Display for Display<'_> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        fmt::Display::fmt(&self.os_str.inner, f)
     }
 }
 

library/std/src/path.rs

@@ -84,7 +84,7 @@ use crate::rc::Rc;
 use crate::str::FromStr;
 use crate::sync::Arc;
 
-use crate::ffi::{OsStr, OsString};
+use crate::ffi::{os_str, OsStr, OsString};
 use crate::sys;
 use crate::sys::path::{is_sep_byte, is_verbatim_sep, parse_prefix, MAIN_SEP_STR};
 
@@ -2726,7 +2726,7 @@ impl Path {
                   it returns an object that can be displayed"]
     #[inline]
     pub fn display(&self) -> Display<'_> {
-        Display { path: self }
+        Display { inner: self.inner.display() }
     }
 
     /// Queries the file system to get information about a file, directory, etc.
@@ -3033,20 +3033,20 @@ impl fmt::Debug for Path {
 /// [`format!`]: crate::format
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct Display<'a> {
-    path: &'a Path,
+    inner: os_str::Display<'a>,
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
 impl fmt::Debug for Display<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        fmt::Debug::fmt(&self.path, f)
+        fmt::Debug::fmt(&self.inner, f)
     }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
 impl fmt::Display for Display<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        self.path.inner.display(f)
+        fmt::Display::fmt(&self.inner, f)
     }
 }
 

src/tools/clippy/clippy_config/src/lib.rs

@@ -6,7 +6,6 @@
     clippy::missing_panics_doc,
     rustc::diagnostic_outside_of_impl,
     rustc::untranslatable_diagnostic,
-    rustc::untranslatable_diagnostic_trivial,
 )]
 
 extern crate rustc_ast;

tests/rustdoc-js-std/osstring-to-string.js

@@ -4,6 +4,6 @@
 const EXPECTED = {
     'query': 'OsString -> String',
     'others': [
-        { 'path': 'std::ffi::OsString', 'name': 'into_string' },
+        { 'path': 'std::ffi::os_str::OsString', 'name': 'into_string' },
     ]
 };

tests/rustdoc/type-alias/primitive-local-link-121106.rs

@@ -0,0 +1,19 @@
+#![crate_name = "foo"]
+
+#![feature(rustc_attrs)]
+
+// @has foo/primitive.i32.html '//h1' 'Primitive Type i32'
+// @has foo/index.html '//a/@href' '../foo/index.html'
+#[rustc_doc_primitive = "i32"]
+mod i32 {}
+
+// @has foo/struct.Node.html '//a/@href' 'primitive.i32.html'
+pub struct Node;
+
+impl Node {
+    pub fn edge(&self) -> i32 { 0 }
+}
+
+// @!has foo/type.Alias.html '//a/@href' 'primitive.i32.html'
+// @hasraw 'type.impl/foo/struct.Node.js' 'href=\"foo/primitive.i32.html\"'
+pub type Alias = Node;

tests/ui/attributes/unix_sigpipe/unix_sigpipe.stderr → tests/ui/attributes/unix_sigpipe/unix_sigpipe-bare.stderr

@@ -1,5 +1,5 @@
 error: valid values for `#[unix_sigpipe = "..."]` are `inherit`, `sig_ign`, or `sig_dfl`
-  --> $DIR/unix_sigpipe.rs:3:1
+  --> $DIR/unix_sigpipe-bare.rs:3:1
    |
 LL | #[unix_sigpipe]
    | ^^^^^^^^^^^^^^^

tests/ui/attributes/unix_sigpipe/unix_sigpipe-different-duplicates.rs

@@ -0,0 +1,5 @@
+#![feature(unix_sigpipe)]
+
+#[unix_sigpipe = "sig_ign"]
+#[unix_sigpipe = "inherit"] //~ error: multiple `unix_sigpipe` attributes
+fn main() {}

tests/ui/attributes/unix_sigpipe/unix_sigpipe-different-duplicates.stderr

@@ -0,0 +1,14 @@
+error: multiple `unix_sigpipe` attributes
+  --> $DIR/unix_sigpipe-different-duplicates.rs:4:1
+   |
+LL | #[unix_sigpipe = "inherit"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
+   |
+note: attribute also specified here
+  --> $DIR/unix_sigpipe-different-duplicates.rs:3:1
+   |
+LL | #[unix_sigpipe = "sig_ign"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 1 previous error
+

tests/ui/attributes/unix_sigpipe/unix_sigpipe-duplicates.rs

@@ -1,5 +1,5 @@
 #![feature(unix_sigpipe)]
 
-#[unix_sigpipe = "sig_ign"]
+#[unix_sigpipe = "inherit"]
 #[unix_sigpipe = "inherit"] //~ error: multiple `unix_sigpipe` attributes
 fn main() {}

tests/ui/attributes/unix_sigpipe/unix_sigpipe-duplicates.stderr

@@ -7,7 +7,7 @@ LL | #[unix_sigpipe = "inherit"]
 note: attribute also specified here
   --> $DIR/unix_sigpipe-duplicates.rs:3:1
    |
-LL | #[unix_sigpipe = "sig_ign"]
+LL | #[unix_sigpipe = "inherit"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: aborting due to 1 previous error

tests/ui/attributes/unix_sigpipe/unix_sigpipe-not-used.rs

@@ -1,6 +1,9 @@
+//@ revisions: with_feature without_feature
 //@ run-pass
 //@ aux-build:sigpipe-utils.rs
 
+#![cfg_attr(with_feature, feature(unix_sigpipe))]
+
 fn main() {
     extern crate sigpipe_utils;
 

tests/ui/imports/auxiliary/import-alias-issue-121168-extern.rs

@@ -0,0 +1 @@
+pub struct Foo<T>(pub core::ptr::NonNull<T>);

tests/ui/imports/import-alias-issue-121168.edition2015.stderr

@@ -0,0 +1,14 @@
+error[E0412]: cannot find type `Foo` in this scope
+  --> $DIR/import-alias-issue-121168.rs:11:12
+   |
+LL |     let _: Foo<i32> = todo!();
+   |            ^^^ not found in this scope
+   |
+help: consider importing this struct
+   |
+LL + use nice_crate_name::Foo;
+   |
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0412`.

tests/ui/imports/import-alias-issue-121168.edition2018.stderr

@@ -0,0 +1,16 @@
+error[E0412]: cannot find type `Foo` in this scope
+  --> $DIR/import-alias-issue-121168.rs:11:12
+   |
+LL |     let _: Foo<i32> = todo!();
+   |            ^^^ not found in this scope
+   |
+help: consider importing one of these items
+   |
+LL + use crate::nice_crate_name::Foo;
+   |
+LL + use import_alias_issue_121168_extern::Foo;
+   |
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0412`.

tests/ui/imports/import-alias-issue-121168.edition2021.stderr

@@ -0,0 +1,16 @@
+error[E0412]: cannot find type `Foo` in this scope
+  --> $DIR/import-alias-issue-121168.rs:11:12
+   |
+LL |     let _: Foo<i32> = todo!();
+   |            ^^^ not found in this scope
+   |
+help: consider importing one of these items
+   |
+LL + use crate::nice_crate_name::Foo;
+   |
+LL + use import_alias_issue_121168_extern::Foo;
+   |
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0412`.

tests/ui/imports/import-alias-issue-121168.rs

@@ -0,0 +1,14 @@
+//@ revisions: edition2015 edition2018 edition2021
+//@ [edition2015] edition:2015
+//@ [edition2018] edition:2018
+//@ [edition2021] edition:2021
+//@ compile-flags: --extern import_alias_issue_121168_extern
+//@ aux-build: import-alias-issue-121168-extern.rs
+
+extern crate import_alias_issue_121168_extern as nice_crate_name;
+
+fn use_foo_from_another_crate_without_importing_it_first() {
+    let _: Foo<i32> = todo!(); //~ ERROR cannot find type `Foo` in this scope
+}
+
+fn main() {}