Rollup merge of #97254 - jhpratt:remove-crate-vis, r=cjgillot

Remove feature: `crate` visibility modifier

FCP completed in #53120.

src/doc/unstable-book/src/language-features/crate-visibility-modifier.md

@@ -1,20 +0,0 @@
-# `crate_visibility_modifier`
-
-The tracking issue for this feature is: [#53120]
-
-[#53120]: https://github.com/rust-lang/rust/issues/53120
-
------
-
-The `crate_visibility_modifier` feature allows the `crate` keyword to be used
-as a visibility modifier synonymous to `pub(crate)`, indicating that a type
-(function, _&c._) is to be visible to the entire enclosing crate, but not to
-other crates.
-
-```rust
-#![feature(crate_visibility_modifier)]
-
-crate struct Foo {
-    bar: usize,
-}
-```

src/test/ui/feature-gates/feature-gate-crate_visibility_modifier.rs

@@ -1,8 +0,0 @@
-crate struct Bender { //~ ERROR `crate` visibility modifier is experimental
-    earth: bool,
-    fire: bool,
-    air: bool,
-    water: bool,
-}
-
-fn main() {}

src/test/ui/feature-gates/feature-gate-crate_visibility_modifier.stderr

@@ -1,12 +0,0 @@
-error[E0658]: `crate` visibility modifier is experimental
-  --> $DIR/feature-gate-crate_visibility_modifier.rs:1:1
-   |
-LL | crate struct Bender {
-   | ^^^^^
-   |
-   = note: see issue #53120 <https://github.com/rust-lang/rust/issues/53120> for more information
-   = help: add `#![feature(crate_visibility_modifier)]` to the crate attributes to enable
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0658`.

src/test/ui/macros/stringify.rs

@@ -861,10 +861,8 @@ fn test_vis() {
     // VisibilityKind::Public
     assert_eq!(stringify_vis!(pub), "pub ");
 
-    // VisibilityKind::Crate
-    assert_eq!(stringify_vis!(crate), "crate ");
-
     // VisibilityKind::Restricted
+    assert_eq!(stringify_vis!(pub(crate)), "pub(crate) ");
     assert_eq!(stringify_vis!(pub(self)), "pub(self) ");
     assert_eq!(stringify_vis!(pub(super)), "pub(super) ");
     assert_eq!(stringify_vis!(pub(in self)), "pub(self) ");

src/tools/clippy/clippy_utils/src/ast_utils.rs

@@ -545,7 +545,7 @@ pub fn eq_defaultness(l: Defaultness, r: Defaultness) -> bool {
 pub fn eq_vis(l: &Visibility, r: &Visibility) -> bool {
     use VisibilityKind::*;
     match (&l.kind, &r.kind) {
-        (Public, Public) | (Inherited, Inherited) | (Crate(_), Crate(_)) => true,
+        (Public, Public) | (Inherited, Inherited) => true,
         (Restricted { path: l, .. }, Restricted { path: r, .. }) => eq_path(l, r),
         _ => false,
     }

src/tools/rustfmt/src/items.rs

@@ -1361,7 +1361,7 @@ pub(crate) fn format_struct_struct(
 
 fn get_bytepos_after_visibility(vis: &ast::Visibility, default_span: Span) -> BytePos {
     match vis.kind {
-        ast::VisibilityKind::Crate(..) | ast::VisibilityKind::Restricted { .. } => vis.span.hi(),
+        ast::VisibilityKind::Restricted { .. } => vis.span.hi(),
         _ => default_span.lo(),
     }
 }

src/tools/rustfmt/src/utils.rs

@@ -1,7 +1,7 @@
 use std::borrow::Cow;
 
 use rustc_ast::ast::{
-    self, Attribute, CrateSugar, MetaItem, MetaItemKind, NestedMetaItem, NodeId, Path, Visibility,
+    self, Attribute, MetaItem, MetaItemKind, NestedMetaItem, NodeId, Path, Visibility,
     VisibilityKind,
 };
 use rustc_ast::ptr;
@@ -44,15 +44,7 @@ pub(crate) fn is_same_visibility(a: &Visibility, b: &Visibility) -> bool {
             VisibilityKind::Restricted { path: q, .. },
         ) => pprust::path_to_string(p) == pprust::path_to_string(q),
         (VisibilityKind::Public, VisibilityKind::Public)
-        | (VisibilityKind::Inherited, VisibilityKind::Inherited)
-        | (
-            VisibilityKind::Crate(CrateSugar::PubCrate),
-            VisibilityKind::Crate(CrateSugar::PubCrate),
-        )
-        | (
-            VisibilityKind::Crate(CrateSugar::JustCrate),
-            VisibilityKind::Crate(CrateSugar::JustCrate),
-        ) => true,
+        | (VisibilityKind::Inherited, VisibilityKind::Inherited) => true,
         _ => false,
     }
 }
@@ -65,8 +57,6 @@ pub(crate) fn format_visibility(
     match vis.kind {
         VisibilityKind::Public => Cow::from("pub "),
         VisibilityKind::Inherited => Cow::from(""),
-        VisibilityKind::Crate(CrateSugar::PubCrate) => Cow::from("pub(crate) "),
-        VisibilityKind::Crate(CrateSugar::JustCrate) => Cow::from("crate "),
         VisibilityKind::Restricted { ref path, .. } => {
             let Path { ref segments, .. } = **path;
             let mut segments_iter = segments.iter().map(|seg| rewrite_ident(context, seg.ident));
@@ -75,7 +65,7 @@ pub(crate) fn format_visibility(
                     .next()
                     .expect("Non-global path in pub(restricted)?");
             }
-            let is_keyword = |s: &str| s == "self" || s == "super";
+            let is_keyword = |s: &str| s == "crate" || s == "self" || s == "super";
             let path = segments_iter.collect::<Vec<_>>().join("::");
             let in_str = if is_keyword(&path) { "" } else { "in " };