Subtree update of rust-analyzer

src/tools/rust-analyzer/Cargo.lock

@@ -1268,7 +1268,7 @@ dependencies = [
  "expect-test",
  "intern",
  "parser",
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.122.0",
  "rustc-hash 2.1.1",
  "smallvec",
  "span",
@@ -1504,7 +1504,7 @@ dependencies = [
  "drop_bomb",
  "edition",
  "expect-test",
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.122.0",
  "rustc-literal-escaper",
  "stdx",
  "tracing",
@@ -1614,7 +1614,7 @@ dependencies = [
  "object",
  "paths",
  "proc-macro-test",
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.122.0",
  "span",
  "syntax-bridge",
  "tt",
@@ -1756,9 +1756,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_abi"
-version = "0.121.0"
+version = "0.122.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ee51482d1c9d3e538acda8cce723db8eea1a81540544bf362bf4c3d841b2329"
+checksum = "fb01e1fec578003c85481c1cad4ff8cd8195b07c2dc85ae3f716108507ae15d5"
 dependencies = [
  "bitflags 2.9.1",
  "ra-ap-rustc_hashes",
@@ -1768,28 +1768,28 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_hashes"
-version = "0.121.0"
+version = "0.122.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19c8f1e0c28e24e1b4c55dc08058c6c9829df2204497d4034259f491d348c204"
+checksum = "e0ec056e72a472ffef8761ce96ece6c626eb07368c09d0105b6df30d27d07673"
 dependencies = [
  "rustc-stable-hash",
 ]
 
 [[package]]
 name = "ra-ap-rustc_index"
-version = "0.121.0"
+version = "0.122.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f33f429cec6b92fa2c7243883279fb29dd233fdc3e94099aff32aa91aa87f50"
+checksum = "0fcdd1001db0295e59052e9f53aeda588bbe81e362534f4687d41bd44777b5a7"
 dependencies = [
  "ra-ap-rustc_index_macros",
  "smallvec",
 ]
 
 [[package]]
 name = "ra-ap-rustc_index_macros"
-version = "0.121.0"
+version = "0.122.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9b55910dbe1fe7ef34bdc1d1bcb41e99b377eb680ea58a1218d95d6b4152257"
+checksum = "728d64dd98e25530b32e3f7c7c1e844e52722b269360daa1cdeba9dff9727a26"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1807,21 +1807,32 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "ra-ap-rustc_lexer"
+version = "0.122.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "415f0821f512608d825b3215489a6a6a2c18ed9f0045953d514e7ec23d4b90ab"
+dependencies = [
+ "memchr",
+ "unicode-properties",
+ "unicode-xid",
+]
+
 [[package]]
 name = "ra-ap-rustc_parse_format"
 version = "0.121.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81057891bc2063ad9e353f29462fbc47a0f5072560af34428ae9313aaa5e9d97"
 dependencies = [
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.121.0",
  "rustc-literal-escaper",
 ]
 
 [[package]]
 name = "ra-ap-rustc_pattern_analysis"
-version = "0.121.0"
+version = "0.122.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe21a3542980d56d2435e96c2720773cac1c63fd4db666417e414729da192eb3"
+checksum = "4657fcfdfe06e2a02ec8180d4e7c95aecf4811ba50367e363d1a2300b7623284"
 dependencies = [
  "ra-ap-rustc_index",
  "rustc-hash 2.1.1",
@@ -2581,7 +2592,7 @@ version = "0.0.0"
 dependencies = [
  "arrayvec",
  "intern",
- "ra-ap-rustc_lexer",
+ "ra-ap-rustc_lexer 0.122.0",
  "stdx",
  "text-size",
 ]

src/tools/rust-analyzer/Cargo.toml

@@ -89,11 +89,11 @@ vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" }
 vfs = { path = "./crates/vfs", version = "0.0.0" }
 edition = { path = "./crates/edition", version = "0.0.0" }
 
-ra-ap-rustc_lexer = { version = "0.121", default-features = false }
+ra-ap-rustc_lexer = { version = "0.122", default-features = false }
 ra-ap-rustc_parse_format = { version = "0.121", default-features = false }
-ra-ap-rustc_index = { version = "0.121", default-features = false }
-ra-ap-rustc_abi = { version = "0.121", default-features = false }
-ra-ap-rustc_pattern_analysis = { version = "0.121", default-features = false }
+ra-ap-rustc_index = { version = "0.122", default-features = false }
+ra-ap-rustc_abi = { version = "0.122", default-features = false }
+ra-ap-rustc_pattern_analysis = { version = "0.122", default-features = false }
 
 # local crates that aren't published to crates.io. These should not have versions.
 

src/tools/rust-analyzer/crates/cfg/src/cfg_expr.rs

@@ -68,6 +68,11 @@ impl CfgExpr {
         next_cfg_expr(&mut tt.iter()).unwrap_or(CfgExpr::Invalid)
     }
 
+    #[cfg(feature = "tt")]
+    pub fn parse_from_iter<S: Copy>(tt: &mut tt::iter::TtIter<'_, S>) -> CfgExpr {
+        next_cfg_expr(tt).unwrap_or(CfgExpr::Invalid)
+    }
+
     /// Fold the cfg by querying all basic `Atom` and `KeyValue` predicates.
     pub fn fold(&self, query: &dyn Fn(&CfgAtom) -> bool) -> Option<bool> {
         match self {
@@ -96,7 +101,14 @@ fn next_cfg_expr<S: Copy>(it: &mut tt::iter::TtIter<'_, S>) -> Option<CfgExpr> {
     };
 
     let ret = match it.peek() {
-        Some(TtElement::Leaf(tt::Leaf::Punct(punct))) if punct.char == '=' => {
+        Some(TtElement::Leaf(tt::Leaf::Punct(punct)))
+            // Don't consume on e.g. `=>`.
+            if punct.char == '='
+                && (punct.spacing == tt::Spacing::Alone
+                    || it.remaining().flat_tokens().get(1).is_none_or(|peek2| {
+                        !matches!(peek2, tt::TokenTree::Leaf(tt::Leaf::Punct(_)))
+                    })) =>
+        {
             match it.remaining().flat_tokens().get(1) {
                 Some(tt::TokenTree::Leaf(tt::Leaf::Literal(literal))) => {
                     it.next();

src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs

@@ -550,3 +550,51 @@ fn main() { "\"hello\""; }
 "##]],
     );
 }
+
+#[test]
+fn cfg_select() {
+    check(
+        r#"
+#[rustc_builtin_macro]
+pub macro cfg_select($($tt:tt)*) {}
+
+cfg_select! {
+    false => { fn false_1() {} }
+    any(false, true) => { fn true_1() {} }
+}
+
+cfg_select! {
+    false => { fn false_2() {} }
+    _ => { fn true_2() {} }
+}
+
+cfg_select! {
+    false => { fn false_3() {} }
+}
+
+cfg_select! {
+    false
+}
+
+cfg_select! {
+    false =>
+}
+
+    "#,
+        expect![[r#"
+#[rustc_builtin_macro]
+pub macro cfg_select($($tt:tt)*) {}
+
+fn true_1() {}
+
+fn true_2() {}
+
+/* error: none of the predicates in this `cfg_select` evaluated to true */
+
+/* error: expected `=>` after cfg expression */
+
+/* error: expected a token tree after `=>` */
+
+    "#]],
+    );
+}

src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs

@@ -127,6 +127,7 @@ register_builtin! {
     (asm, Asm) => asm_expand,
     (global_asm, GlobalAsm) => global_asm_expand,
     (naked_asm, NakedAsm) => naked_asm_expand,
+    (cfg_select, CfgSelect) => cfg_select_expand,
     (cfg, Cfg) => cfg_expand,
     (core_panic, CorePanic) => panic_expand,
     (std_panic, StdPanic) => panic_expand,
@@ -355,6 +356,71 @@ fn naked_asm_expand(
     ExpandResult::ok(expanded)
 }
 
+fn cfg_select_expand(
+    db: &dyn ExpandDatabase,
+    id: MacroCallId,
+    tt: &tt::TopSubtree,
+    span: Span,
+) -> ExpandResult<tt::TopSubtree> {
+    let loc = db.lookup_intern_macro_call(id);
+    let cfg_options = loc.krate.cfg_options(db);
+
+    let mut iter = tt.iter();
+    let mut expand_to = None;
+    while let Some(next) = iter.peek() {
+        let active = if let tt::TtElement::Leaf(tt::Leaf::Ident(ident)) = next
+            && ident.sym == sym::underscore
+        {
+            iter.next();
+            true
+        } else {
+            cfg_options.check(&CfgExpr::parse_from_iter(&mut iter)) != Some(false)
+        };
+        match iter.expect_glued_punct() {
+            Ok(it) if it.len() == 2 && it[0].char == '=' && it[1].char == '>' => {}
+            _ => {
+                let err_span = iter.peek().map(|it| it.first_span()).unwrap_or(span);
+                return ExpandResult::new(
+                    tt::TopSubtree::empty(tt::DelimSpan::from_single(span)),
+                    ExpandError::other(err_span, "expected `=>` after cfg expression"),
+                );
+            }
+        }
+        let expand_to_if_active = match iter.next() {
+            Some(tt::TtElement::Subtree(_, tt)) => tt.remaining(),
+            _ => {
+                let err_span = iter.peek().map(|it| it.first_span()).unwrap_or(span);
+                return ExpandResult::new(
+                    tt::TopSubtree::empty(tt::DelimSpan::from_single(span)),
+                    ExpandError::other(err_span, "expected a token tree after `=>`"),
+                );
+            }
+        };
+
+        if expand_to.is_none() && active {
+            expand_to = Some(expand_to_if_active);
+        }
+    }
+    match expand_to {
+        Some(expand_to) => {
+            let mut builder = tt::TopSubtreeBuilder::new(tt::Delimiter {
+                kind: tt::DelimiterKind::Invisible,
+                open: span,
+                close: span,
+            });
+            builder.extend_with_tt(expand_to);
+            ExpandResult::ok(builder.build())
+        }
+        None => ExpandResult::new(
+            tt::TopSubtree::empty(tt::DelimSpan::from_single(span)),
+            ExpandError::other(
+                span,
+                "none of the predicates in this `cfg_select` evaluated to true",
+            ),
+        ),
+    }
+}
+
 fn cfg_expand(
     db: &dyn ExpandDatabase,
     id: MacroCallId,

src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_deref.rs

@@ -10,7 +10,7 @@ use syntax::{
 use crate::{
     AssistId,
     assist_context::{AssistContext, Assists, SourceChangeBuilder},
-    utils::generate_trait_impl_text,
+    utils::generate_trait_impl_text_intransitive,
 };
 
 // Assist: generate_deref
@@ -150,7 +150,7 @@ fn generate_edit(
         ),
     };
     let strukt_adt = ast::Adt::Struct(strukt);
-    let deref_impl = generate_trait_impl_text(
+    let deref_impl = generate_trait_impl_text_intransitive(
         &strukt_adt,
         &trait_path.display(db, edition).to_string(),
         &impl_code,
@@ -227,6 +227,28 @@ impl core::ops::Deref for B {
         );
     }
 
+    #[test]
+    fn test_generate_record_deref_with_generic() {
+        check_assist(
+            generate_deref,
+            r#"
+//- minicore: deref
+struct A<T>($0T);
+"#,
+            r#"
+struct A<T>(T);
+
+impl<T> core::ops::Deref for A<T> {
+    type Target = T;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+"#,
+        );
+    }
+
     #[test]
     fn test_generate_record_deref_short_path() {
         check_assist(

src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs

@@ -134,6 +134,9 @@ fn get_trait_mut(apply_trait: &hir::Trait, famous: FamousDefs<'_, '_>) -> Option
     if trait_ == famous.core_borrow_Borrow().as_ref() {
         return Some("BorrowMut");
     }
+    if trait_ == famous.core_ops_Deref().as_ref() {
+        return Some("DerefMut");
+    }
     None
 }
 
@@ -142,6 +145,7 @@ fn process_method_name(name: ast::Name) -> Option<(ast::Name, &'static str)> {
         "index" => "index_mut",
         "as_ref" => "as_mut",
         "borrow" => "borrow_mut",
+        "deref" => "deref_mut",
         _ => return None,
     };
     Some((name, new_name))
@@ -258,6 +262,39 @@ impl core::convert::AsRef<i32> for Foo {
         &self.0
     }
 }
+"#,
+        );
+
+        check_assist(
+            generate_mut_trait_impl,
+            r#"
+//- minicore: deref
+struct Foo(i32);
+
+impl core::ops::Deref$0 for Foo {
+    type Target = i32;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+"#,
+            r#"
+struct Foo(i32);
+
+$0impl core::ops::DerefMut for Foo {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+
+impl core::ops::Deref for Foo {
+    type Target = i32;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
 "#,
         );
     }