Adding upstream version 1.66.0+dfsg1.upstream/1.66.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

31 files changed, 403 insertions, 334 deletions

diff --git a/vendor/syn/.cargo-checksum.json b/vendor/syn/.cargo-checksum.json
index 8ea280f0f..8b90dae0f 100644
--- a/vendor/syn/.cargo-checksum.json
+++ b/vendor/syn/.cargo-checksum.json
@@ -1 +1 @@
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\ No newline at end of file
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3ef2f461c67688b61b99762015","tests/common/parse.rs":"81580f23583723f7a2a337c4d13ebc021057cd825562fb4e474caa7cc641fed9","tests/debug/gen.rs":"1b7f875344cb04a7dd3df62deac2f410a9d107c097986e68006d87465f5f5306","tests/debug/mod.rs":"3a6bb799f478101f71c84c6f1a854a58afe2f9db43c39017909346ca20262d94","tests/macros/mod.rs":"aff805b35cfd55aef6a1359ff747e4023afcb08d69d86aff4c19465d29dda088","tests/regression.rs":"f962ebf24007f631f7e702e34e142d07581da7c9a36321ac142cafed1a0afc69","tests/regression/issue1108.rs":"adcc55a42239d344da74216ed85fc14153ddd6ca4dec4872d8339604ba78c185","tests/repo/mod.rs":"1ea18f9430e75cabc4b23b826544c2bf2f950b679a04b237a11e17aabc16e2e9","tests/repo/progress.rs":"c08d0314a7f3ecf760d471f27da3cd2a500aeb9f1c8331bffb2aa648f9fabf3f","tests/test_asyncness.rs":"cff01db49d28ab23b0b258bc6c0a5cc4071be4fe7248eef344a5d79d2fb649b7","tests/test_attribute.rs":"0ffd99384e1a52ae17d9fed5c4053e411e8f9018decef07ffa621d1faa7329d8","tests/test_derive_input.rs":"62bb86aaaaf730187a46ff700a8e3b2d1a163039b109b6a483aa44ed2b6806fe","tests/test_expr.rs":"a639728866a063b590430965a4840c01755e398b89be12d8d09b0aa97837ecac","tests/test_generics.rs":"54b7d2afc19aa6e9049585f4c8f7d3f0c29ac3bd11a2c769e9df76f18a4f5ecb","tests/test_grouping.rs":"6276c3c73bba649dec5c97904ad2492879f918bc887a2c425d095c654ca0d925","tests/test_ident.rs":"9eb53d1e21edf23e7c9e14dc74dcc2b2538e9221e19dbcc0a44e3acc2e90f3f6","tests/test_item.rs":"a3642c80066f1e7787becfd0278af90a6b7968d6c1249e25e81663aa454cfb2a","tests/test_iterators.rs":"53ed6078d37550bd6765d2411e3660be401aef8a31a407350cc064a7d08c7c33","tests/test_lit.rs":"19740ea9cd4a980bcab9b0dcaa4b032bb6ebb137fa5e4237140b97da1d9679fa","tests/test_meta.rs":"65d4586d131f6cac66694ca5e936748ec4e7f7423af6d8da509240e6be14800b","tests/test_parse_buffer.rs":"68d857f776396d064fcc0023c37093c2fbf75ee68e8241d4014d00d1423c18e9","tests/test_parse_stream.rs":"bf1db6fab7ac396fa61012faccbe6ffbc9c3d795ed2900be75e91c5b09b0c62f","tests/test_pat.rs":"d4465f4fc3fd5d6e534ba8efabe1e0ed6da89de4ac7c96effa6bfb880c4287cf","tests/test_path.rs":"71092a5ae2c9143b92a8fe15a92d39958b3c28bd4d4275cfb2d22cbdd53ada07","tests/test_precedence.rs":"736eee861c4c7a3d7d4387d2fb1b5eced1541790d34974f72b0a5532797e73c3","tests/test_receiver.rs":"084eca59984b9a18651da52f2c4407355da3de1335916a12477652999e2d01cc","tests/test_round_trip.rs":"b47662e35be2729f28bacdbbea20f1879c111889430e735a7bcb5f2a5c0b9e5c","tests/test_shebang.rs":"f5772cadad5b56e3112cb16308b779f92bce1c3a48091fc9933deb2276a69331","tests/test_should_parse.rs":"1d3535698a446e2755bfc360676bdb161841a1f454cdef6e7556c6d06a95c89d","tests/test_size.rs":"697906d892ab8186eebdf6bc7696fde7a42376d50bee846ba69f031bdb847e01","tests/test_stmt.rs":"0601fc32131b5501dfcdc4b4248d46bf21e0a98a49eb19439e1a46869dfb30b7","tests/test_token_trees.rs":"43e56a701817e3c3bfd0cae54a457dd7a38ccb3ca19da41e2b995fdf20e6ed18","tests/test_ty.rs":"f71d7f7f1c038aaabea8dd4c03c0d5752c76d570f8b4885a81659825bbb4d576","tests/test_visibility.rs":"7456fcb3a6634db509748aededff9c2d8b242d511a3e5ee3022e40b232892704","tests/zzz_stable.rs":"2a862e59cb446235ed99aec0e6ada8e16d3ecc30229b29d825b7c0bbc2602989"},"package":"3fcd952facd492f9be3ef0d0b7032a6e442ee9b361d4acc2b1d0c4aaa5f613a1"}
\ No newline at end of file
diff --git a/vendor/syn/Cargo.toml b/vendor/syn/Cargo.toml
index acd07cc81..7b1412593 100644
--- a/vendor/syn/Cargo.toml
+++ b/vendor/syn/Cargo.toml
@@ -13,7 +13,7 @@
 edition = "2018"
 rust-version = "1.31"
 name = "syn"
-version = "1.0.98"
+version = "1.0.102"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 include = [
     "/benches/**",
@@ -28,7 +28,14 @@ include = [
 description = "Parser for Rust source code"
 documentation = "https://docs.rs/syn"
 readme = "README.md"
-categories = ["development-tools::procedural-macro-helpers"]
+keywords = [
+    "macros",
+    "syn",
+]
+categories = [
+    "development-tools::procedural-macro-helpers",
+    "parser-implementations",
+]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/dtolnay/syn"
 
@@ -65,7 +72,7 @@ required-features = [
 ]
 
 [dependencies.proc-macro2]
-version = "1.0.39"
+version = "1.0.46"
 default-features = false
 
 [dependencies.quote]
diff --git a/vendor/syn/benches/file.rs b/vendor/syn/benches/file.rs
index 86204df2d..bd4a247df 100644
--- a/vendor/syn/benches/file.rs
+++ b/vendor/syn/benches/file.rs
@@ -1,8 +1,12 @@
-// $ cargo bench --features full --bench file
+// $ cargo bench --features full,test --bench file
 
 #![feature(rustc_private, test)]
 #![recursion_limit = "1024"]
-#![allow(clippy::missing_panics_doc, clippy::must_use_candidate)]
+#![allow(
+    clippy::items_after_statements,
+    clippy::missing_panics_doc,
+    clippy::must_use_candidate
+)]
 
 extern crate test;
 
@@ -15,17 +19,37 @@ mod common;
 #[path = "../tests/repo/mod.rs"]
 pub mod repo;
 
-use proc_macro2::TokenStream;
+use proc_macro2::{Span, TokenStream};
 use std::fs;
 use std::str::FromStr;
+use syn::parse::{ParseStream, Parser};
 use test::Bencher;
 
 const FILE: &str = "tests/rust/library/core/src/str/mod.rs";
 
-#[bench]
-fn parse_file(b: &mut Bencher) {
+fn get_tokens() -> TokenStream {
     repo::clone_rust();
     let content = fs::read_to_string(FILE).unwrap();
-    let tokens = TokenStream::from_str(&content).unwrap();
+    TokenStream::from_str(&content).unwrap()
+}
+
+#[bench]
+fn baseline(b: &mut Bencher) {
+    let tokens = get_tokens();
+    b.iter(|| drop(tokens.clone()));
+}
+
+#[bench]
+fn create_token_buffer(b: &mut Bencher) {
+    let tokens = get_tokens();
+    fn immediate_fail(_input: ParseStream) -> syn::Result<()> {
+        Err(syn::Error::new(Span::call_site(), ""))
+    }
+    b.iter(|| immediate_fail.parse2(tokens.clone()));
+}
+
+#[bench]
+fn parse_file(b: &mut Bencher) {
+    let tokens = get_tokens();
     b.iter(|| syn::parse2::<syn::File>(tokens.clone()));
 }
diff --git a/vendor/syn/benches/rust.rs b/vendor/syn/benches/rust.rs
index 5e4fba182..e3f8f550a 100644
--- a/vendor/syn/benches/rust.rs
+++ b/vendor/syn/benches/rust.rs
@@ -1,7 +1,7 @@
-// $ cargo bench --features full --bench rust
+// $ cargo bench --features full,test --bench rust
 //
 // Syn only, useful for profiling:
-// $ RUSTFLAGS='--cfg syn_only' cargo build --release --features full --bench rust
+// $ RUSTFLAGS='--cfg syn_only' cargo build --release --features full,test --bench rust
 
 #![cfg_attr(not(syn_only), feature(rustc_private))]
 #![recursion_limit = "1024"]
@@ -46,7 +46,7 @@ mod librustc_parse {
 
     use rustc_data_structures::sync::Lrc;
     use rustc_error_messages::FluentBundle;
-    use rustc_errors::{emitter::Emitter, Diagnostic, Handler};
+    use rustc_errors::{emitter::Emitter, translation::Translate, Diagnostic, Handler};
     use rustc_session::parse::ParseSess;
     use rustc_span::source_map::{FilePathMapping, SourceMap};
     use rustc_span::{edition::Edition, FileName};
@@ -59,6 +59,9 @@ mod librustc_parse {
             fn source_map(&self) -> Option<&Lrc<SourceMap>> {
                 None
             }
+        }
+
+        impl Translate for SilentEmitter {
             fn fluent_bundle(&self) -> Option<&Lrc<FluentBundle>> {
                 None
             }
@@ -88,7 +91,7 @@ mod librustc_parse {
 #[cfg(not(syn_only))]
 mod read_from_disk {
     pub fn bench(content: &str) -> Result<(), ()> {
-        let _ = content;
+        _ = content;
         Ok(())
     }
 }
diff --git a/vendor/syn/src/buffer.rs b/vendor/syn/src/buffer.rs
index 2cb6690f0..161b614c8 100644
--- a/vendor/syn/src/buffer.rs
+++ b/vendor/syn/src/buffer.rs
@@ -15,20 +15,17 @@ use crate::proc_macro as pm;
 use crate::Lifetime;
 use proc_macro2::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
 use std::marker::PhantomData;
-use std::ptr;
-use std::slice;
 
 /// Internal type which is used instead of `TokenTree` to represent a token tree
 /// within a `TokenBuffer`.
 enum Entry {
     // Mimicking types from proc-macro.
-    Group(Group, TokenBuffer),
+    // Group entries contain the offset to the matching End entry.
+    Group(Group, usize),
     Ident(Ident),
     Punct(Punct),
     Literal(Literal),
-    // End entries contain a raw pointer to the entry from the containing
-    // token tree, or null if this is the outermost level.
-    End(*const Entry),
+    End,
 }
 
 /// A buffer that can be efficiently traversed multiple times, unlike
@@ -37,76 +34,29 @@ enum Entry {
 ///
 /// *This type is available only if Syn is built with the `"parsing"` feature.*
 pub struct TokenBuffer {
-    // NOTE: Do not implement clone on this - there are raw pointers inside
-    // these entries which will be messed up. Moving the `TokenBuffer` itself is
-    // safe as the data pointed to won't be moved.
-    ptr: *const Entry,
-    len: usize,
-}
-
-impl Drop for TokenBuffer {
-    fn drop(&mut self) {
-        unsafe {
-            let slice = slice::from_raw_parts_mut(self.ptr as *mut Entry, self.len);
-            let _ = Box::from_raw(slice);
-        }
-    }
+    // NOTE: Do not implement clone on this - while the current design could be
+    // cloned, other designs which could be desirable may not be cloneable.
+    entries: Box<[Entry]>,
 }
 
 impl TokenBuffer {
-    // NOTE: Do not mutate the Vec returned from this function once it returns;
-    // the address of its backing memory must remain stable.
-    fn inner_new(stream: TokenStream, up: *const Entry) -> TokenBuffer {
-        // Build up the entries list, recording the locations of any Groups
-        // in the list to be processed later.
-        let mut entries = Vec::new();
-        let mut groups = Vec::new();
+    fn recursive_new(entries: &mut Vec<Entry>, stream: TokenStream) {
         for tt in stream {
             match tt {
-                TokenTree::Ident(sym) => {
-                    entries.push(Entry::Ident(sym));
-                }
-                TokenTree::Punct(op) => {
-                    entries.push(Entry::Punct(op));
-                }
-                TokenTree::Literal(l) => {
-                    entries.push(Entry::Literal(l));
-                }
-                TokenTree::Group(g) => {
-                    // Record the index of the interesting entry, and store an
-                    // `End(null)` there temporarily.
-                    groups.push((entries.len(), g));
-                    entries.push(Entry::End(ptr::null()));
+                TokenTree::Ident(ident) => entries.push(Entry::Ident(ident)),
+                TokenTree::Punct(punct) => entries.push(Entry::Punct(punct)),
+                TokenTree::Literal(literal) => entries.push(Entry::Literal(literal)),
+                TokenTree::Group(group) => {
+                    let group_start_index = entries.len();
+                    entries.push(Entry::End); // we replace this below
+                    Self::recursive_new(entries, group.stream());
+                    let group_end_index = entries.len();
+                    entries.push(Entry::End);
+                    let group_end_offset = group_end_index - group_start_index;
+                    entries[group_start_index] = Entry::Group(group, group_end_offset);
                 }
             }
         }
-        // Add an `End` entry to the end with a reference to the enclosing token
-        // stream which was passed in.
-        entries.push(Entry::End(up));
-
-        // NOTE: This is done to ensure that we don't accidentally modify the
-        // length of the backing buffer. The backing buffer must remain at a
-        // constant address after this point, as we are going to store a raw
-        // pointer into it.
-        let entries = entries.into_boxed_slice();
-        let len = entries.len();
-        // Convert boxed slice into a pointer to the first element early, to
-        // avoid invalidating pointers into this slice when we move the Box.
-        // See https://github.com/rust-lang/unsafe-code-guidelines/issues/326
-        let entries = Box::into_raw(entries) as *mut Entry;
-        for (idx, group) in groups {
-            // We know that this index refers to one of the temporary
-            // `End(null)` entries, and we know that the last entry is
-            // `End(up)`, so the next index is also valid.
-            let group_up = unsafe { entries.add(idx + 1) };
-
-            // The end entry stored at the end of this Entry::Group should
-            // point to the Entry which follows the Group in the list.
-            let inner = Self::inner_new(group.stream(), group_up);
-            unsafe { *entries.add(idx) = Entry::Group(group, inner) };
-        }
-
-        TokenBuffer { ptr: entries, len }
     }
 
     /// Creates a `TokenBuffer` containing all the tokens from the input
@@ -125,13 +75,19 @@ impl TokenBuffer {
     /// Creates a `TokenBuffer` containing all the tokens from the input
     /// `proc_macro2::TokenStream`.
     pub fn new2(stream: TokenStream) -> Self {
-        Self::inner_new(stream, ptr::null())
+        let mut entries = Vec::new();
+        Self::recursive_new(&mut entries, stream);
+        entries.push(Entry::End);
+        Self {
+            entries: entries.into_boxed_slice(),
+        }
     }
 
     /// Creates a cursor referencing the first token in the buffer and able to
     /// traverse until the end of the buffer.
     pub fn begin(&self) -> Cursor {
-        unsafe { Cursor::create(self.ptr, self.ptr.add(self.len - 1)) }
+        let ptr = self.entries.as_ptr();
+        unsafe { Cursor::create(ptr, ptr.add(self.entries.len() - 1)) }
     }
 }
 
@@ -151,7 +107,7 @@ impl TokenBuffer {
 pub struct Cursor<'a> {
     // The current entry which the `Cursor` is pointing at.
     ptr: *const Entry,
-    // This is the only `Entry::End(..)` object which this cursor is allowed to
+    // This is the only `Entry::End` object which this cursor is allowed to
     // point at. All other `End` objects are skipped over in `Cursor::create`.
     scope: *const Entry,
     // Cursor is covariant in 'a. This field ensures that our pointers are still
@@ -171,7 +127,7 @@ impl<'a> Cursor<'a> {
         // object in global storage.
         struct UnsafeSyncEntry(Entry);
         unsafe impl Sync for UnsafeSyncEntry {}
-        static EMPTY_ENTRY: UnsafeSyncEntry = UnsafeSyncEntry(Entry::End(0 as *const Entry));
+        static EMPTY_ENTRY: UnsafeSyncEntry = UnsafeSyncEntry(Entry::End);
 
         Cursor {
             ptr: &EMPTY_ENTRY.0,
@@ -184,15 +140,15 @@ impl<'a> Cursor<'a> {
     /// `None`-delimited scopes when the cursor reaches the end of them,
     /// allowing for them to be treated transparently.
     unsafe fn create(mut ptr: *const Entry, scope: *const Entry) -> Self {
-        // NOTE: If we're looking at a `End(..)`, we want to advance the cursor
+        // NOTE: If we're looking at a `End`, we want to advance the cursor
         // past it, unless `ptr == scope`, which means that we're at the edge of
         // our cursor's scope. We should only have `ptr != scope` at the exit
         // from None-delimited groups entered with `ignore_none`.
-        while let Entry::End(exit) = *ptr {
+        while let Entry::End = *ptr {
             if ptr == scope {
                 break;
             }
-            ptr = exit;
+            ptr = ptr.add(1);
         }
 
         Cursor {
@@ -210,7 +166,10 @@ impl<'a> Cursor<'a> {
     /// Bump the cursor to point at the next token after the current one. This
     /// is undefined behavior if the cursor is currently looking at an
     /// `Entry::End`.
-    unsafe fn bump(self) -> Cursor<'a> {
+    ///
+    /// If the cursor is looking at an `Entry::Group`, the bumped cursor will
+    /// point at the first token in the group (with the same scope end).
+    unsafe fn bump_ignore_group(self) -> Cursor<'a> {
         Cursor::create(self.ptr.offset(1), self.scope)
     }
 
@@ -220,14 +179,9 @@ impl<'a> Cursor<'a> {
     ///
     /// WARNING: This mutates its argument.
     fn ignore_none(&mut self) {
-        while let Entry::Group(group, buf) = self.entry() {
+        while let Entry::Group(group, _) = self.entry() {
             if group.delimiter() == Delimiter::None {
-                // NOTE: We call `Cursor::create` here to make sure that
-                // situations where we should immediately exit the span after
-                // entering it are handled correctly.
-                unsafe {
-                    *self = Cursor::create(buf.ptr, self.scope);
-                }
+                unsafe { *self = self.bump_ignore_group() };
             } else {
                 break;
             }
@@ -251,9 +205,12 @@ impl<'a> Cursor<'a> {
             self.ignore_none();
         }
 
-        if let Entry::Group(group, buf) = self.entry() {
+        if let Entry::Group(group, end_offset) = self.entry() {
             if group.delimiter() == delim {
-                return Some((buf.begin(), group.span(), unsafe { self.bump() }));
+                let end_of_group = unsafe { self.ptr.add(*end_offset) };
+                let inside_of_group = unsafe { Cursor::create(self.ptr.add(1), end_of_group) };
+                let after_group = unsafe { Cursor::create(end_of_group, self.scope) };
+                return Some((inside_of_group, group.span(), after_group));
             }
         }
 
@@ -265,7 +222,7 @@ impl<'a> Cursor<'a> {
     pub fn ident(mut self) -> Option<(Ident, Cursor<'a>)> {
         self.ignore_none();
         match self.entry() {
-            Entry::Ident(ident) => Some((ident.clone(), unsafe { self.bump() })),
+            Entry::Ident(ident) => Some((ident.clone(), unsafe { self.bump_ignore_group() })),
             _ => None,
         }
     }
@@ -275,7 +232,9 @@ impl<'a> Cursor<'a> {
     pub fn punct(mut self) -> Option<(Punct, Cursor<'a>)> {
         self.ignore_none();
         match self.entry() {
-            Entry::Punct(op) if op.as_char() != '\'' => Some((op.clone(), unsafe { self.bump() })),
+            Entry::Punct(punct) if punct.as_char() != '\'' => {
+                Some((punct.clone(), unsafe { self.bump_ignore_group() }))
+            }
             _ => None,
         }
     }
@@ -285,7 +244,7 @@ impl<'a> Cursor<'a> {
     pub fn literal(mut self) -> Option<(Literal, Cursor<'a>)> {
         self.ignore_none();
         match self.entry() {
-            Entry::Literal(lit) => Some((lit.clone(), unsafe { self.bump() })),
+            Entry::Literal(literal) => Some((literal.clone(), unsafe { self.bump_ignore_group() })),
             _ => None,
         }
     }
@@ -295,18 +254,14 @@ impl<'a> Cursor<'a> {
     pub fn lifetime(mut self) -> Option<(Lifetime, Cursor<'a>)> {
         self.ignore_none();
         match self.entry() {
-            Entry::Punct(op) if op.as_char() == '\'' && op.spacing() == Spacing::Joint => {
-                let next = unsafe { self.bump() };
-                match next.ident() {
-                    Some((ident, rest)) => {
-                        let lifetime = Lifetime {
-                            apostrophe: op.span(),
-                            ident,
-                        };
-                        Some((lifetime, rest))
-                    }
-                    None => None,
-                }
+            Entry::Punct(punct) if punct.as_char() == '\'' && punct.spacing() == Spacing::Joint => {
+                let next = unsafe { self.bump_ignore_group() };
+                let (ident, rest) = next.ident()?;
+                let lifetime = Lifetime {
+                    apostrophe: punct.span(),
+                    ident,
+                };
+                Some((lifetime, rest))
             }
             _ => None,
         }
@@ -332,15 +287,16 @@ impl<'a> Cursor<'a> {
     /// This method does not treat `None`-delimited groups as transparent, and
     /// will return a `Group(None, ..)` if the cursor is looking at one.
     pub fn token_tree(self) -> Option<(TokenTree, Cursor<'a>)> {
-        let tree = match self.entry() {
-            Entry::Group(group, _) => group.clone().into(),
-            Entry::Literal(lit) => lit.clone().into(),
-            Entry::Ident(ident) => ident.clone().into(),
-            Entry::Punct(op) => op.clone().into(),
-            Entry::End(..) => return None,
+        let (tree, len) = match self.entry() {
+            Entry::Group(group, end_offset) => (group.clone().into(), *end_offset),
+            Entry::Literal(literal) => (literal.clone().into(), 1),
+            Entry::Ident(ident) => (ident.clone().into(), 1),
+            Entry::Punct(punct) => (punct.clone().into(), 1),
+            Entry::End => return None,
         };
 
-        Some((tree, unsafe { self.bump() }))
+        let rest = unsafe { Cursor::create(self.ptr.add(len), self.scope) };
+        Some((tree, rest))
     }
 
     /// Returns the `Span` of the current token, or `Span::call_site()` if this
@@ -348,10 +304,10 @@ impl<'a> Cursor<'a> {
     pub fn span(self) -> Span {
         match self.entry() {
             Entry::Group(group, _) => group.span(),
-            Entry::Literal(l) => l.span(),
-            Entry::Ident(t) => t.span(),
-            Entry::Punct(o) => o.span(),
-            Entry::End(..) => Span::call_site(),
+            Entry::Literal(literal) => literal.span(),
+            Entry::Ident(ident) => ident.span(),
+            Entry::Punct(punct) => punct.span(),
+            Entry::End => Span::call_site(),
         }
     }
 
@@ -360,19 +316,22 @@ impl<'a> Cursor<'a> {
     ///
     /// This method treats `'lifetimes` as a single token.
     pub(crate) fn skip(self) -> Option<Cursor<'a>> {
-        match self.entry() {
-            Entry::End(..) => None,
+        let len = match self.entry() {
+            Entry::End => return None,
 
             // Treat lifetimes as a single tt for the purposes of 'skip'.
-            Entry::Punct(op) if op.as_char() == '\'' && op.spacing() == Spacing::Joint => {
-                let next = unsafe { self.bump() };
-                match next.entry() {
-                    Entry::Ident(_) => Some(unsafe { next.bump() }),
-                    _ => Some(next),
+            Entry::Punct(punct) if punct.as_char() == '\'' && punct.spacing() == Spacing::Joint => {
+                match unsafe { &*self.ptr.add(1) } {
+                    Entry::Ident(_) => 2,
+                    _ => 1,
                 }
             }
-            _ => Some(unsafe { self.bump() }),
-        }
+
+            Entry::Group(_, end_offset) => *end_offset,
+            _ => 1,
+        };
+
+        Some(unsafe { Cursor::create(self.ptr.add(len), self.scope) })
     }
 }
 
diff --git a/vendor/syn/src/expr.rs b/vendor/syn/src/expr.rs
index cf0fa0af9..93a59b0e2 100644
--- a/vendor/syn/src/expr.rs
+++ b/vendor/syn/src/expr.rs
@@ -1371,7 +1371,9 @@ pub(crate) mod parsing {
                 });
             } else if Precedence::Cast >= base && input.peek(Token![as]) {
                 let as_token: Token![as] = input.parse()?;
-                let ty = input.call(Type::without_plus)?;
+                let allow_plus = false;
+                let allow_group_generic = false;
+                let ty = ty::parsing::ambig_ty(input, allow_plus, allow_group_generic)?;
                 check_cast(input)?;
                 lhs = Expr::Cast(ExprCast {
                     attrs: Vec::new(),
@@ -1381,7 +1383,9 @@ pub(crate) mod parsing {
                 });
             } else if Precedence::Cast >= base && input.peek(Token![:]) && !input.peek(Token![::]) {
                 let colon_token: Token![:] = input.parse()?;
-                let ty = input.call(Type::without_plus)?;
+                let allow_plus = false;
+                let allow_group_generic = false;
+                let ty = ty::parsing::ambig_ty(input, allow_plus, allow_group_generic)?;
                 check_cast(input)?;
                 lhs = Expr::Type(ExprType {
                     attrs: Vec::new(),
@@ -1429,7 +1433,9 @@ pub(crate) mod parsing {
                 });
             } else if Precedence::Cast >= base && input.peek(Token![as]) {
                 let as_token: Token![as] = input.parse()?;
-                let ty = input.call(Type::without_plus)?;
+                let allow_plus = false;
+                let allow_group_generic = false;
+                let ty = ty::parsing::ambig_ty(input, allow_plus, allow_group_generic)?;
                 check_cast(input)?;
                 lhs = Expr::Cast(ExprCast {
                     attrs: Vec::new(),
@@ -1727,7 +1733,10 @@ pub(crate) mod parsing {
             || input.peek(Token![move])
         {
             expr_closure(input, allow_struct).map(Expr::Closure)
-        } else if input.peek(Token![for]) && input.peek2(Token![<]) && input.peek3(Lifetime) {
+        } else if input.peek(Token![for])
+            && input.peek2(Token![<])
+            && (input.peek3(Lifetime) || input.peek3(Token![>]))
+        {
             let begin = input.fork();
             input.parse::<BoundLifetimes>()?;
             expr_closure(input, allow_struct)?;
@@ -2010,7 +2019,9 @@ pub(crate) mod parsing {
             Expr::If(input.parse()?)
         } else if input.peek(Token![while]) {
             Expr::While(input.parse()?)
-        } else if input.peek(Token![for]) {
+        } else if input.peek(Token![for])
+            && !(input.peek2(Token![<]) && (input.peek3(Lifetime) || input.peek3(Token![>])))
+        {
             Expr::ForLoop(input.parse()?)
         } else if input.peek(Token![loop]) {
             Expr::Loop(input.parse()?)
diff --git a/vendor/syn/src/gen/clone.rs b/vendor/syn/src/gen/clone.rs
index 8de1cd8c9..a413e3ec7 100644
--- a/vendor/syn/src/gen/clone.rs
+++ b/vendor/syn/src/gen/clone.rs
@@ -910,9 +910,9 @@ impl Clone for GenericArgument {
         match self {
             GenericArgument::Lifetime(v0) => GenericArgument::Lifetime(v0.clone()),
             GenericArgument::Type(v0) => GenericArgument::Type(v0.clone()),
+            GenericArgument::Const(v0) => GenericArgument::Const(v0.clone()),
             GenericArgument::Binding(v0) => GenericArgument::Binding(v0.clone()),
             GenericArgument::Constraint(v0) => GenericArgument::Constraint(v0.clone()),
-            GenericArgument::Const(v0) => GenericArgument::Const(v0.clone()),
         }
     }
 }
diff --git a/vendor/syn/src/gen/debug.rs b/vendor/syn/src/gen/debug.rs
index 4adf8c593..a1f0afa79 100644
--- a/vendor/syn/src/gen/debug.rs
+++ b/vendor/syn/src/gen/debug.rs
@@ -1268,6 +1268,11 @@ impl Debug for GenericArgument {
                 formatter.field(v0);
                 formatter.finish()
             }
+            GenericArgument::Const(v0) => {
+                let mut formatter = formatter.debug_tuple("Const");
+                formatter.field(v0);
+                formatter.finish()
+            }
             GenericArgument::Binding(v0) => {
                 let mut formatter = formatter.debug_tuple("Binding");
                 formatter.field(v0);
@@ -1278,11 +1283,6 @@ impl Debug for GenericArgument {
                 formatter.field(v0);
                 formatter.finish()
             }
-            GenericArgument::Const(v0) => {
-                let mut formatter = formatter.debug_tuple("Const");
-                formatter.field(v0);
-                formatter.finish()
-            }
         }
     }
 }
diff --git a/vendor/syn/src/gen/eq.rs b/vendor/syn/src/gen/eq.rs
index 40fed0b89..20acb809d 100644
--- a/vendor/syn/src/gen/eq.rs
+++ b/vendor/syn/src/gen/eq.rs
@@ -878,13 +878,13 @@ impl PartialEq for GenericArgument {
             (GenericArgument::Type(self0), GenericArgument::Type(other0)) => {
                 self0 == other0
             }
-            (GenericArgument::Binding(self0), GenericArgument::Binding(other0)) => {
+            (GenericArgument::Const(self0), GenericArgument::Const(other0)) => {
                 self0 == other0
             }
-            (GenericArgument::Constraint(self0), GenericArgument::Constraint(other0)) => {
+            (GenericArgument::Binding(self0), GenericArgument::Binding(other0)) => {
                 self0 == other0
             }
-            (GenericArgument::Const(self0), GenericArgument::Const(other0)) => {
+            (GenericArgument::Constraint(self0), GenericArgument::Constraint(other0)) => {
                 self0 == other0
             }
             _ => false,
diff --git a/vendor/syn/src/gen/fold.rs b/vendor/syn/src/gen/fold.rs
index 6e19e6f3a..98bb5794a 100644
--- a/vendor/syn/src/gen/fold.rs
+++ b/vendor/syn/src/gen/fold.rs
@@ -1787,15 +1787,15 @@ where
         GenericArgument::Type(_binding_0) => {
             GenericArgument::Type(f.fold_type(_binding_0))
         }
+        GenericArgument::Const(_binding_0) => {
+            GenericArgument::Const(f.fold_expr(_binding_0))
+        }
         GenericArgument::Binding(_binding_0) => {
             GenericArgument::Binding(f.fold_binding(_binding_0))
         }
         GenericArgument::Constraint(_binding_0) => {
             GenericArgument::Constraint(f.fold_constraint(_binding_0))
         }
-        GenericArgument::Const(_binding_0) => {
-            GenericArgument::Const(f.fold_expr(_binding_0))
-        }
     }
 }
 #[cfg(feature = "full")]
diff --git a/vendor/syn/src/gen/hash.rs b/vendor/syn/src/gen/hash.rs
index f68a7630e..d0400e19d 100644
--- a/vendor/syn/src/gen/hash.rs
+++ b/vendor/syn/src/gen/hash.rs
@@ -1184,15 +1184,15 @@ impl Hash for GenericArgument {
                 state.write_u8(1u8);
                 v0.hash(state);
             }
-            GenericArgument::Binding(v0) => {
+            GenericArgument::Const(v0) => {
                 state.write_u8(2u8);
                 v0.hash(state);
             }
-            GenericArgument::Constraint(v0) => {
+            GenericArgument::Binding(v0) => {
                 state.write_u8(3u8);
                 v0.hash(state);
             }
-            GenericArgument::Const(v0) => {
+            GenericArgument::Constraint(v0) => {
                 state.write_u8(4u8);
                 v0.hash(state);
             }
diff --git a/vendor/syn/src/gen/visit.rs b/vendor/syn/src/gen/visit.rs
index 051b65936..19ddd2e72 100644
--- a/vendor/syn/src/gen/visit.rs
+++ b/vendor/syn/src/gen/visit.rs
@@ -1974,15 +1974,15 @@ where
         GenericArgument::Type(_binding_0) => {
             v.visit_type(_binding_0);
         }
+        GenericArgument::Const(_binding_0) => {
+            v.visit_expr(_binding_0);
+        }
         GenericArgument::Binding(_binding_0) => {
             v.visit_binding(_binding_0);
         }
         GenericArgument::Constraint(_binding_0) => {
             v.visit_constraint(_binding_0);
         }
-        GenericArgument::Const(_binding_0) => {
-            v.visit_expr(_binding_0);
-        }
     }
 }
 #[cfg(feature = "full")]
diff --git a/vendor/syn/src/gen/visit_mut.rs b/vendor/syn/src/gen/visit_mut.rs
index 3ddbe9c06..239709d19 100644
--- a/vendor/syn/src/gen/visit_mut.rs
+++ b/vendor/syn/src/gen/visit_mut.rs
@@ -1975,15 +1975,15 @@ where
         GenericArgument::Type(_binding_0) => {
             v.visit_type_mut(_binding_0);
         }
+        GenericArgument::Const(_binding_0) => {
+            v.visit_expr_mut(_binding_0);
+        }
         GenericArgument::Binding(_binding_0) => {
             v.visit_binding_mut(_binding_0);
         }
         GenericArgument::Constraint(_binding_0) => {
             v.visit_constraint_mut(_binding_0);
         }
-        GenericArgument::Const(_binding_0) => {
-            v.visit_expr_mut(_binding_0);
-        }
     }
 }
 #[cfg(feature = "full")]
diff --git a/vendor/syn/src/item.rs b/vendor/syn/src/item.rs
index 1ce970ee2..a1ef7ab43 100644
--- a/vendor/syn/src/item.rs
+++ b/vendor/syn/src/item.rs
@@ -2765,7 +2765,6 @@ mod printing {
     use super::*;
     use crate::attr::FilterAttrs;
     use crate::print::TokensOrDefault;
-    use crate::punctuated::Pair;
     use proc_macro2::TokenStream;
     use quote::{ToTokens, TokenStreamExt};
 
@@ -3283,16 +3282,9 @@ mod printing {
             self.generics.to_tokens(tokens);
             self.paren_token.surround(tokens, |tokens| {
                 let mut last_is_variadic = false;
-                for input in self.inputs.pairs() {
-                    match input {
-                        Pair::Punctuated(input, comma) => {
-                            maybe_variadic_to_tokens(input, tokens);
-                            comma.to_tokens(tokens);
-                        }
-                        Pair::End(input) => {
-                            last_is_variadic = maybe_variadic_to_tokens(input, tokens);
-                        }
-                    }
+                for pair in self.inputs.pairs() {
+                    last_is_variadic = maybe_variadic_to_tokens(pair.value(), tokens);
+                    pair.punct().to_tokens(tokens);
                 }
                 if self.variadic.is_some() && !last_is_variadic {
                     if !self.inputs.empty_or_trailing() {
diff --git a/vendor/syn/src/lib.rs b/vendor/syn/src/lib.rs
index 608c39876..81f03e1b5 100644
--- a/vendor/syn/src/lib.rs
+++ b/vendor/syn/src/lib.rs
@@ -250,15 +250,18 @@
 //!   dynamic library libproc_macro from rustc toolchain.
 
 // Syn types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/syn/1.0.98")]
+#![doc(html_root_url = "https://docs.rs/syn/1.0.102")]
 #![cfg_attr(doc_cfg, feature(doc_cfg))]
 #![allow(non_camel_case_types)]
 #![allow(
+    clippy::bool_to_int_with_if,
     clippy::cast_lossless,
     clippy::cast_possible_truncation,
+    clippy::cast_ptr_alignment,
     clippy::default_trait_access,
     clippy::doc_markdown,
     clippy::expl_impl_clone_on_copy,
+    clippy::explicit_auto_deref,
     clippy::if_not_else,
     clippy::inherent_to_string,
     clippy::large_enum_variant,
@@ -810,14 +813,6 @@ mod print;
 
 ////////////////////////////////////////////////////////////////////////////////
 
-// https://github.com/rust-lang/rust/issues/62830
-#[cfg(feature = "parsing")]
-mod rustdoc_workaround {
-    pub use crate::parse::{self as parse_module};
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
 mod error;
 pub use crate::error::{Error, Result};
 
diff --git a/vendor/syn/src/lit.rs b/vendor/syn/src/lit.rs
index 2600dc801..130b40ed1 100644
--- a/vendor/syn/src/lit.rs
+++ b/vendor/syn/src/lit.rs
@@ -224,7 +224,7 @@ impl LitStr {
 
         // Parse string literal into a token stream with every span equal to the
         // original literal's span.
-        let mut tokens = crate::parse_str(&self.value())?;
+        let mut tokens = TokenStream::from_str(&self.value())?;
         tokens = respan_token_stream(tokens, self.span());
 
         parser.parse2(tokens)
diff --git a/vendor/syn/src/parse_macro_input.rs b/vendor/syn/src/parse_macro_input.rs
index 8e1a5ec6b..6163cd70a 100644
--- a/vendor/syn/src/parse_macro_input.rs
+++ b/vendor/syn/src/parse_macro_input.rs
@@ -4,7 +4,7 @@
 /// Refer to the [`parse` module] documentation for more details about parsing
 /// in Syn.
 ///
-/// [`parse` module]: crate::rustdoc_workaround::parse_module
+/// [`parse` module]: mod@crate::parse
 ///
 /// <br>
 ///
@@ -51,7 +51,7 @@
 /// This macro can also be used with the [`Parser` trait] for types that have
 /// multiple ways that they can be parsed.
 ///
-/// [`Parser` trait]: crate::rustdoc_workaround::parse_module::Parser
+/// [`Parser` trait]: crate::parse::Parser
 ///
 /// ```
 /// # extern crate proc_macro;
diff --git a/vendor/syn/src/pat.rs b/vendor/syn/src/pat.rs
index fa0818c16..b279186aa 100644
--- a/vendor/syn/src/pat.rs
+++ b/vendor/syn/src/pat.rs
@@ -400,11 +400,11 @@ pub mod parsing {
         }
 
         if input.peek(token::Brace) {
-            let pat = pat_struct(input, path)?;
+            let pat = pat_struct(begin.fork(), input, path)?;
             if qself.is_some() {
                 Ok(Pat::Verbatim(verbatim::between(begin, input)))
             } else {
-                Ok(Pat::Struct(pat))
+                Ok(pat)
             }
         } else if input.peek(token::Paren) {
             let pat = pat_tuple_struct(input, path)?;
@@ -465,13 +465,23 @@ pub mod parsing {
         })
     }
 
-    fn pat_struct(input: ParseStream, path: Path) -> Result<PatStruct> {
+    fn pat_struct(begin: ParseBuffer, input: ParseStream, path: Path) -> Result<Pat> {
         let content;
         let brace_token = braced!(content in input);
 
         let mut fields = Punctuated::new();
-        while !content.is_empty() && !content.peek(Token![..]) {
-            let value = content.call(field_pat)?;
+        let mut dot2_token = None;
+        while !content.is_empty() {
+            let attrs = content.call(Attribute::parse_outer)?;
+            if content.peek(Token![..]) {
+                dot2_token = Some(content.parse()?);
+                if !attrs.is_empty() {
+                    return Ok(Pat::Verbatim(verbatim::between(begin, input)));
+                }
+                break;
+            }
+            let mut value = content.call(field_pat)?;
+            value.attrs = attrs;
             fields.push_value(value);
             if content.is_empty() {
                 break;
@@ -480,19 +490,13 @@ pub mod parsing {
             fields.push_punct(punct);
         }
 
-        let dot2_token = if fields.empty_or_trailing() && content.peek(Token![..]) {
-            Some(content.parse()?)
-        } else {
-            None
-        };
-
-        Ok(PatStruct {
+        Ok(Pat::Struct(PatStruct {
             attrs: Vec::new(),
             path,
             brace_token,
             fields,
             dot2_token,
-        })
+        }))
     }
 
     impl Member {
@@ -505,7 +509,6 @@ pub mod parsing {
     }
 
     fn field_pat(input: ParseStream) -> Result<FieldPat> {
-        let attrs = input.call(Attribute::parse_outer)?;
         let boxed: Option<Token![box]> = input.parse()?;
         let by_ref: Option<Token![ref]> = input.parse()?;
         let mutability: Option<Token![mut]> = input.parse()?;
@@ -515,7 +518,7 @@ pub mod parsing {
             || member.is_unnamed()
         {
             return Ok(FieldPat {
-                attrs,
+                attrs: Vec::new(),
                 member,
                 colon_token: input.parse()?,
                 pat: Box::new(multi_pat_with_leading_vert(input)?),
@@ -544,7 +547,7 @@ pub mod parsing {
         }
 
         Ok(FieldPat {
-            attrs,
+            attrs: Vec::new(),
             member: Member::Named(ident),
             colon_token: None,
             pat: Box::new(pat),
diff --git a/vendor/syn/src/path.rs b/vendor/syn/src/path.rs
index 00be352b1..742273afd 100644
--- a/vendor/syn/src/path.rs
+++ b/vendor/syn/src/path.rs
@@ -109,16 +109,16 @@ ast_enum! {
         Lifetime(Lifetime),
         /// A type argument.
         Type(Type),
-        /// A binding (equality constraint) on an associated type: the `Item =
-        /// u8` in `Iterator<Item = u8>`.
-        Binding(Binding),
-        /// An associated type bound: `Iterator<Item: Display>`.
-        Constraint(Constraint),
         /// A const expression. Must be inside of a block.
         ///
         /// NOTE: Identity expressions are represented as Type arguments, as
         /// they are indistinguishable syntactically.
         Const(Expr),
+        /// A binding (equality constraint) on an associated type: the `Item =
+        /// u8` in `Iterator<Item = u8>`.
+        Binding(Binding),
+        /// An associated type bound: `Iterator<Item: Display>`.
+        Constraint(Constraint),
     }
 }
 
@@ -729,8 +729,6 @@ pub(crate) mod printing {
             match self {
                 GenericArgument::Lifetime(lt) => lt.to_tokens(tokens),
                 GenericArgument::Type(ty) => ty.to_tokens(tokens),
-                GenericArgument::Binding(tb) => tb.to_tokens(tokens),
-                GenericArgument::Constraint(tc) => tc.to_tokens(tokens),
                 GenericArgument::Const(e) => match *e {
                     Expr::Lit(_) => e.to_tokens(tokens),
 
@@ -746,6 +744,8 @@ pub(crate) mod printing {
                         e.to_tokens(tokens);
                     }),
                 },
+                GenericArgument::Binding(tb) => tb.to_tokens(tokens),
+                GenericArgument::Constraint(tc) => tc.to_tokens(tokens),
             }
         }
     }
@@ -756,11 +756,8 @@ pub(crate) mod printing {
             self.colon2_token.to_tokens(tokens);
             self.lt_token.to_tokens(tokens);
 
-            // Print lifetimes before types and consts, all before bindings,
-            // regardless of their order in self.args.
-            //
-            // TODO: ordering rules for const arguments vs type arguments have
-            // not been settled yet. https://github.com/rust-lang/rust/issues/44580
+            // Print lifetimes before types/consts/bindings, regardless of their
+            // order in self.args.
             let mut trailing_or_empty = true;
             for param in self.args.pairs() {
                 match **param.value() {
@@ -769,37 +766,24 @@ pub(crate) mod printing {
                         trailing_or_empty = param.punct().is_some();
                     }
                     GenericArgument::Type(_)
-                    | GenericArgument::Binding(_)
-                    | GenericArgument::Constraint(_)
-                    | GenericArgument::Const(_) => {}
-                }
-            }
-            for param in self.args.pairs() {
-                match **param.value() {
-                    GenericArgument::Type(_) | GenericArgument::Const(_) => {
-                        if !trailing_or_empty {
-                            <Token![,]>::default().to_tokens(tokens);
-                        }
-                        param.to_tokens(tokens);
-                        trailing_or_empty = param.punct().is_some();
-                    }
-                    GenericArgument::Lifetime(_)
+                    | GenericArgument::Const(_)
                     | GenericArgument::Binding(_)
                     | GenericArgument::Constraint(_) => {}
                 }
             }
             for param in self.args.pairs() {
                 match **param.value() {
-                    GenericArgument::Binding(_) | GenericArgument::Constraint(_) => {
+                    GenericArgument::Type(_)
+                    | GenericArgument::Const(_)
+                    | GenericArgument::Binding(_)
+                    | GenericArgument::Constraint(_) => {
                         if !trailing_or_empty {
                             <Token![,]>::default().to_tokens(tokens);
                         }
                         param.to_tokens(tokens);
                         trailing_or_empty = param.punct().is_some();
                     }
-                    GenericArgument::Lifetime(_)
-                    | GenericArgument::Type(_)
-                    | GenericArgument::Const(_) => {}
+                    GenericArgument::Lifetime(_) => {}
                 }
             }
 
diff --git a/vendor/syn/src/stmt.rs b/vendor/syn/src/stmt.rs
index 3e2c71bdd..58bd013ec 100644
--- a/vendor/syn/src/stmt.rs
+++ b/vendor/syn/src/stmt.rs
@@ -175,7 +175,11 @@ pub mod parsing {
             || input.peek(Token![crate]) && !input.peek2(Token![::])
             || input.peek(Token![extern])
             || input.peek(Token![use])
-            || input.peek(Token![static]) && (input.peek2(Token![mut]) || input.peek2(Ident))
+            || input.peek(Token![static])
+                && (input.peek2(Token![mut])
+                    || input.peek2(Ident)
+                        && !(input.peek2(Token![async])
+                            && (input.peek3(Token![move]) || input.peek3(Token![|]))))
             || input.peek(Token![const]) && !input.peek2(token::Brace)
             || input.peek(Token![unsafe]) && !input.peek2(token::Brace)
             || input.peek(Token![async])
diff --git a/vendor/syn/src/ty.rs b/vendor/syn/src/ty.rs
index 0f1341fdd..4068be3c7 100644
--- a/vendor/syn/src/ty.rs
+++ b/vendor/syn/src/ty.rs
@@ -343,7 +343,8 @@ pub mod parsing {
     impl Parse for Type {
         fn parse(input: ParseStream) -> Result<Self> {
             let allow_plus = true;
-            ambig_ty(input, allow_plus)
+            let allow_group_generic = true;
+            ambig_ty(input, allow_plus, allow_group_generic)
         }
     }
 
@@ -356,11 +357,16 @@ pub mod parsing {
         #[cfg_attr(doc_cfg, doc(cfg(feature = "parsing")))]
         pub fn without_plus(input: ParseStream) -> Result<Self> {
             let allow_plus = false;
-            ambig_ty(input, allow_plus)
+            let allow_group_generic = true;
+            ambig_ty(input, allow_plus, allow_group_generic)
         }
     }
 
-    fn ambig_ty(input: ParseStream, allow_plus: bool) -> Result<Type> {
+    pub(crate) fn ambig_ty(
+        input: ParseStream,
+        allow_plus: bool,
+        allow_group_generic: bool,
+    ) -> Result<Type> {
         let begin = input.fork();
 
         if input.peek(token::Group) {
@@ -381,7 +387,9 @@ pub mod parsing {
                         path: Path::parse_helper(input, false)?,
                     }));
                 }
-            } else if input.peek(Token![<]) || input.peek(Token![::]) && input.peek3(Token![<]) {
+            } else if input.peek(Token![<]) && allow_group_generic
+                || input.peek(Token![::]) && input.peek3(Token![<])
+            {
                 if let Type::Path(mut ty) = *group.elem {
                     let arguments = &mut ty.path.segments.last_mut().unwrap().arguments;
                     if let PathArguments::None = arguments {
@@ -537,9 +545,15 @@ pub mod parsing {
             || lookahead.peek(Token![::])
             || lookahead.peek(Token![<])
         {
-            if input.peek(Token![dyn]) {
-                let trait_object = TypeTraitObject::parse(input, allow_plus)?;
-                return Ok(Type::TraitObject(trait_object));
+            let dyn_token: Option<Token![dyn]> = input.parse()?;
+            if dyn_token.is_some() {
+                let star_token: Option<Token![*]> = input.parse()?;
+                let bounds = TypeTraitObject::parse_bounds(input, allow_plus)?;
+                return Ok(if star_token.is_some() {
+                    Type::Verbatim(verbatim::between(begin, input))
+                } else {
+                    Type::TraitObject(TypeTraitObject { dyn_token, bounds })
+                });
             }
 
             let ty: TypePath = input.parse()?;
@@ -819,15 +833,28 @@ pub mod parsing {
     #[cfg_attr(doc_cfg, doc(cfg(feature = "parsing")))]
     impl Parse for TypePath {
         fn parse(input: ParseStream) -> Result<Self> {
-            let (qself, mut path) = path::parsing::qpath(input, false)?;
+            let expr_style = false;
+            let (qself, mut path) = path::parsing::qpath(input, expr_style)?;
 
-            if path.segments.last().unwrap().arguments.is_empty()
+            while path.segments.last().unwrap().arguments.is_empty()
                 && (input.peek(token::Paren) || input.peek(Token![::]) && input.peek3(token::Paren))
             {
                 input.parse::<Option<Token![::]>>()?;
                 let args: ParenthesizedGenericArguments = input.parse()?;
+                let allow_associated_type = cfg!(feature = "full")
+                    && match &args.output {
+                        ReturnType::Default => true,
+                        ReturnType::Type(_, ty) => match **ty {
+                            // TODO: probably some of the other kinds allow this too.
+                            Type::Paren(_) => true,
+                            _ => false,
+                        },
+                    };
                 let parenthesized = PathArguments::Parenthesized(args);
                 path.segments.last_mut().unwrap().arguments = parenthesized;
+                if allow_associated_type {
+                    Path::parse_rest(input, &mut path, expr_style)?;
+                }
             }
 
             Ok(TypePath { qself, path })
@@ -844,7 +871,8 @@ pub mod parsing {
         pub(crate) fn parse(input: ParseStream, allow_plus: bool) -> Result<Self> {
             if input.peek(Token![->]) {
                 let arrow = input.parse()?;
-                let ty = ambig_ty(input, allow_plus)?;
+                let allow_group_generic = true;
+                let ty = ambig_ty(input, allow_plus, allow_group_generic)?;
                 Ok(ReturnType::Type(arrow, Box::new(ty)))
             } else {
                 Ok(ReturnType::Default)
@@ -967,7 +995,10 @@ pub mod parsing {
             let content;
             Ok(TypeParen {
                 paren_token: parenthesized!(content in input),
-                elem: Box::new(ambig_ty(&content, allow_plus)?),
+                elem: Box::new({
+                    let allow_group_generic = true;
+                    ambig_ty(&content, allow_plus, allow_group_generic)?
+                }),
             })
         }
     }
diff --git a/vendor/syn/tests/.gitignore b/vendor/syn/tests/.gitignore
deleted file mode 100644
index 291ed43a2..000000000
--- a/vendor/syn/tests/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/*.pending-snap
diff --git a/vendor/syn/tests/common/eq.rs b/vendor/syn/tests/common/eq.rs
index a6c379165..a53146241 100644
--- a/vendor/syn/tests/common/eq.rs
+++ b/vendor/syn/tests/common/eq.rs
@@ -3,6 +3,7 @@
 extern crate rustc_ast;
 extern crate rustc_data_structures;
 extern crate rustc_span;
+extern crate thin_vec;
 
 use rustc_ast::ast::AngleBracketedArg;
 use rustc_ast::ast::AngleBracketedArgs;
@@ -19,11 +20,13 @@ use rustc_ast::ast::AttrStyle;
 use rustc_ast::ast::Attribute;
 use rustc_ast::ast::BareFnTy;
 use rustc_ast::ast::BinOpKind;
-use rustc_ast::ast::BindingMode;
+use rustc_ast::ast::BindingAnnotation;
 use rustc_ast::ast::Block;
 use rustc_ast::ast::BlockCheckMode;
 use rustc_ast::ast::BorrowKind;
+use rustc_ast::ast::ByRef;
 use rustc_ast::ast::CaptureBy;
+use rustc_ast::ast::ClosureBinder;
 use rustc_ast::ast::Const;
 use rustc_ast::ast::Crate;
 use rustc_ast::ast::Defaultness;
@@ -81,6 +84,7 @@ use rustc_ast::ast::Movability;
 use rustc_ast::ast::MutTy;
 use rustc_ast::ast::Mutability;
 use rustc_ast::ast::NodeId;
+use rustc_ast::ast::NormalAttr;
 use rustc_ast::ast::Param;
 use rustc_ast::ast::ParenthesizedArgs;
 use rustc_ast::ast::Pat;
@@ -126,14 +130,14 @@ use rustc_ast::ast::WhereRegionPredicate;
 use rustc_ast::ptr::P;
 use rustc_ast::token::{self, CommentKind, Delimiter, Nonterminal, Token, TokenKind};
 use rustc_ast::tokenstream::{
-    AttrAnnotatedTokenStream, AttrAnnotatedTokenTree, AttributesData, DelimSpan, LazyTokenStream,
-    Spacing, TokenStream, TokenTree,
+    AttrTokenStream, AttrTokenTree, AttributesData, DelimSpan, LazyAttrTokenStream, Spacing,
+    TokenStream, TokenTree,
 };
 use rustc_data_structures::sync::Lrc;
-use rustc_data_structures::thin_vec::ThinVec;
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::{sym, Ident};
 use rustc_span::{Span, Symbol, SyntaxContext, DUMMY_SP};
+use thin_vec::ThinVec;
 
 pub trait SpanlessEq {
     fn eq(&self, other: &Self) -> bool;
@@ -145,7 +149,7 @@ impl<T: ?Sized + SpanlessEq> SpanlessEq for Box<T> {
     }
 }
 
-impl<T: SpanlessEq> SpanlessEq for P<T> {
+impl<T: ?Sized + SpanlessEq> SpanlessEq for P<T> {
     fn eq(&self, other: &Self) -> bool {
         SpanlessEq::eq(&**self, &**other)
     }
@@ -400,11 +404,12 @@ spanless_eq_struct!(AngleBracketedArgs; span args);
 spanless_eq_struct!(AnonConst; id value);
 spanless_eq_struct!(Arm; attrs pat guard body span id is_placeholder);
 spanless_eq_struct!(AssocConstraint; id ident gen_args kind span);
-spanless_eq_struct!(AttrAnnotatedTokenStream; 0);
 spanless_eq_struct!(AttrItem; path args tokens);
+spanless_eq_struct!(AttrTokenStream; 0);
 spanless_eq_struct!(Attribute; kind id style span);
 spanless_eq_struct!(AttributesData; attrs tokens);
 spanless_eq_struct!(BareFnTy; unsafety ext generic_params decl decl_span);
+spanless_eq_struct!(BindingAnnotation; 0 1);
 spanless_eq_struct!(Block; stmts id rules span tokens could_be_bare_literal);
 spanless_eq_struct!(Crate; attrs items spans id is_placeholder);
 spanless_eq_struct!(EnumDef; variants);
@@ -424,13 +429,14 @@ spanless_eq_struct!(InlineAsmSym; id qself path);
 spanless_eq_struct!(Item<K>; attrs id span vis ident kind !tokens);
 spanless_eq_struct!(Label; ident);
 spanless_eq_struct!(Lifetime; id ident);
-spanless_eq_struct!(Lit; token kind span);
+spanless_eq_struct!(Lit; token_lit kind span);
 spanless_eq_struct!(Local; pat ty kind id span attrs !tokens);
 spanless_eq_struct!(MacCall; path args prior_type_ascription);
 spanless_eq_struct!(MacCallStmt; mac style attrs tokens);
 spanless_eq_struct!(MacroDef; body macro_rules);
 spanless_eq_struct!(ModSpans; !inner_span !inject_use_span);
 spanless_eq_struct!(MutTy; ty mutbl);
+spanless_eq_struct!(NormalAttr; item tokens);
 spanless_eq_struct!(ParenthesizedArgs; span inputs inputs_span output);
 spanless_eq_struct!(Pat; id kind span tokens);
 spanless_eq_struct!(PatField; ident pat is_shorthand attrs id span is_placeholder);
@@ -452,23 +458,24 @@ spanless_eq_struct!(Variant; attrs id span !vis ident data disr_expr is_placehol
 spanless_eq_struct!(Visibility; kind span tokens);
 spanless_eq_struct!(WhereBoundPredicate; span bound_generic_params bounded_ty bounds);
 spanless_eq_struct!(WhereClause; has_where_token predicates span);
-spanless_eq_struct!(WhereEqPredicate; id span lhs_ty rhs_ty);
+spanless_eq_struct!(WhereEqPredicate; span lhs_ty rhs_ty);
 spanless_eq_struct!(WhereRegionPredicate; span lifetime bounds);
 spanless_eq_struct!(token::Lit; kind symbol suffix);
 spanless_eq_enum!(AngleBracketedArg; Arg(0) Constraint(0));
 spanless_eq_enum!(AssocItemKind; Const(0 1 2) Fn(0) TyAlias(0) MacCall(0));
 spanless_eq_enum!(AssocConstraintKind; Equality(term) Bound(bounds));
 spanless_eq_enum!(Async; Yes(span closure_id return_impl_trait_id) No);
-spanless_eq_enum!(AttrAnnotatedTokenTree; Token(0) Delimited(0 1 2) Attributes(0));
 spanless_eq_enum!(AttrStyle; Outer Inner);
+spanless_eq_enum!(AttrTokenTree; Token(0 1) Delimited(0 1 2) Attributes(0));
 spanless_eq_enum!(BinOpKind; Add Sub Mul Div Rem And Or BitXor BitAnd BitOr Shl Shr Eq Lt Le Ne Ge Gt);
-spanless_eq_enum!(BindingMode; ByRef(0) ByValue(0));
 spanless_eq_enum!(BlockCheckMode; Default Unsafe(0));
 spanless_eq_enum!(BorrowKind; Ref Raw);
+spanless_eq_enum!(ByRef; Yes No);
 spanless_eq_enum!(CaptureBy; Value Ref);
+spanless_eq_enum!(ClosureBinder; NotPresent For(span generic_params));
 spanless_eq_enum!(Const; Yes(0) No);
 spanless_eq_enum!(Defaultness; Default(0) Final);
-spanless_eq_enum!(Extern; None Implicit Explicit(0));
+spanless_eq_enum!(Extern; None Implicit(0) Explicit(0 1));
 spanless_eq_enum!(FloatTy; F32 F64);
 spanless_eq_enum!(FnRetTy; Default(0) Ty(0));
 spanless_eq_enum!(ForeignItemKind; Static(0 1 2) Fn(0) TyAlias(0) MacCall(0));
@@ -498,24 +505,25 @@ spanless_eq_enum!(StmtKind; Local(0) Item(0) Expr(0) Semi(0) Empty MacCall(0));
 spanless_eq_enum!(StrStyle; Cooked Raw(0));
 spanless_eq_enum!(StructRest; Base(0) Rest(0) None);
 spanless_eq_enum!(Term; Ty(0) Const(0));
-spanless_eq_enum!(TokenTree; Token(0) Delimited(0 1 2));
+spanless_eq_enum!(TokenTree; Token(0 1) Delimited(0 1 2));
 spanless_eq_enum!(TraitBoundModifier; None Maybe MaybeConst MaybeConstMaybe);
-spanless_eq_enum!(TraitObjectSyntax; Dyn None);
+spanless_eq_enum!(TraitObjectSyntax; Dyn DynStar None);
 spanless_eq_enum!(UintTy; Usize U8 U16 U32 U64 U128);
 spanless_eq_enum!(UnOp; Deref Not Neg);
 spanless_eq_enum!(Unsafe; Yes(0) No);
 spanless_eq_enum!(UnsafeSource; CompilerGenerated UserProvided);
 spanless_eq_enum!(UseTreeKind; Simple(0 1 2) Nested(0) Glob);
 spanless_eq_enum!(VariantData; Struct(0 1) Tuple(0 1) Unit(0));
-spanless_eq_enum!(VisibilityKind; Public Restricted(path id) Inherited);
+spanless_eq_enum!(VisibilityKind; Public Restricted(path id shorthand) Inherited);
 spanless_eq_enum!(WherePredicate; BoundPredicate(0) RegionPredicate(0) EqPredicate(0));
 spanless_eq_enum!(ExprKind; Box(0) Array(0) ConstBlock(0) Call(0 1)
-    MethodCall(0 1 2) Tup(0) Binary(0 1 2) Unary(0 1) Lit(0) Cast(0 1) Type(0 1)
-    Let(0 1 2) If(0 1 2) While(0 1 2) ForLoop(0 1 2 3) Loop(0 1) Match(0 1)
-    Closure(0 1 2 3 4 5) Block(0 1) Async(0 1 2) Await(0) TryBlock(0)
-    Assign(0 1 2) AssignOp(0 1 2) Field(0 1) Index(0 1) Underscore Range(0 1 2)
-    Path(0 1) AddrOf(0 1 2) Break(0 1) Continue(0) Ret(0) InlineAsm(0)
-    MacCall(0) Struct(0) Repeat(0 1) Paren(0) Try(0) Yield(0) Yeet(0) Err);
+    MethodCall(0 1 2 3) Tup(0) Binary(0 1 2) Unary(0 1) Lit(0) Cast(0 1)
+    Type(0 1) Let(0 1 2) If(0 1 2) While(0 1 2) ForLoop(0 1 2 3) Loop(0 1)
+    Match(0 1) Closure(0 1 2 3 4 5 6) Block(0 1) Async(0 1 2) Await(0)
+    TryBlock(0) Assign(0 1 2) AssignOp(0 1 2) Field(0 1) Index(0 1) Underscore
+    Range(0 1 2) Path(0 1) AddrOf(0 1 2) Break(0 1) Continue(0) Ret(0)
+    InlineAsm(0) MacCall(0) Struct(0) Repeat(0 1) Paren(0) Try(0) Yield(0)
+    Yeet(0) Err);
 spanless_eq_enum!(InlineAsmOperand; In(reg expr) Out(reg late expr)
     InOut(reg late expr) SplitInOut(reg late in_expr out_expr) Const(anon_const)
     Sym(sym));
@@ -523,7 +531,7 @@ spanless_eq_enum!(ItemKind; ExternCrate(0) Use(0) Static(0 1 2) Const(0 1 2)
     Fn(0) Mod(0 1) ForeignMod(0) GlobalAsm(0) TyAlias(0) Enum(0 1) Struct(0 1)
     Union(0 1) Trait(0) TraitAlias(0 1) Impl(0) MacCall(0) MacroDef(0));
 spanless_eq_enum!(LitKind; Str(0 1) ByteStr(0) Byte(0) Char(0) Int(0 1)
-    Float(0 1) Bool(0) Err(0));
+    Float(0 1) Bool(0) Err);
 spanless_eq_enum!(PatKind; Wild Ident(0 1 2) Struct(0 1 2 3) TupleStruct(0 1 2)
     Or(0) Path(0 1) Tuple(0) Box(0) Ref(0 1) Lit(0) Range(0 1 2) Slice(0) Rest
     Paren(0) MacCall(0));
@@ -610,7 +618,7 @@ impl SpanlessEq for TokenStream {
             if SpanlessEq::eq(this, other) {
                 continue;
             }
-            if let (TokenTree::Token(this), TokenTree::Token(other)) = (this, other) {
+            if let (TokenTree::Token(this, _), TokenTree::Token(other, _)) = (this, other) {
                 if match (&this.kind, &other.kind) {
                     (TokenKind::Literal(this), TokenKind::Literal(other)) => {
                         SpanlessEq::eq(this, other)
@@ -641,10 +649,13 @@ fn doc_comment<'a>(
         AttrStyle::Inner => true,
     } {
         match trees.next() {
-            Some(TokenTree::Token(Token {
-                kind: TokenKind::Not,
-                span: _,
-            })) => {}
+            Some(TokenTree::Token(
+                Token {
+                    kind: TokenKind::Not,
+                    span: _,
+                },
+                _spacing,
+            )) => {}
             _ => return false,
         }
     }
@@ -654,21 +665,27 @@ fn doc_comment<'a>(
     };
     let mut trees = stream.trees();
     match trees.next() {
-        Some(TokenTree::Token(Token {
-            kind: TokenKind::Ident(symbol, false),
-            span: _,
-        })) if *symbol == sym::doc => {}
+        Some(TokenTree::Token(
+            Token {
+                kind: TokenKind::Ident(symbol, false),
+                span: _,
+            },
+            _spacing,
+        )) if *symbol == sym::doc => {}
         _ => return false,
     }
     match trees.next() {
-        Some(TokenTree::Token(Token {
-            kind: TokenKind::Eq,
-            span: _,
-        })) => {}
+        Some(TokenTree::Token(
+            Token {
+                kind: TokenKind::Eq,
+                span: _,
+            },
+            _spacing,
+        )) => {}
         _ => return false,
     }
     match trees.next() {
-        Some(TokenTree::Token(token)) => {
+        Some(TokenTree::Token(token, _spacing)) => {
             is_escaped_literal_token(token, unescaped) && trees.next().is_none()
         }
         _ => false,
@@ -680,7 +697,7 @@ fn is_escaped_literal_token(token: &Token, unescaped: Symbol) -> bool {
         Token {
             kind: TokenKind::Literal(lit),
             span: _,
-        } => match Lit::from_lit_token(*lit, DUMMY_SP) {
+        } => match Lit::from_token_lit(*lit, DUMMY_SP) {
             Ok(lit) => is_escaped_literal(&lit, unescaped),
             Err(_) => false,
         },
@@ -711,7 +728,7 @@ fn is_escaped_literal_macro_arg(arg: &MacArgsEq, unescaped: Symbol) -> bool {
 fn is_escaped_literal(lit: &Lit, unescaped: Symbol) -> bool {
     match lit {
         Lit {
-            token:
+            token_lit:
                 token::Lit {
                     kind: token::LitKind::Str,
                     symbol: _,
@@ -724,10 +741,10 @@ fn is_escaped_literal(lit: &Lit, unescaped: Symbol) -> bool {
     }
 }
 
-impl SpanlessEq for LazyTokenStream {
+impl SpanlessEq for LazyAttrTokenStream {
     fn eq(&self, other: &Self) -> bool {
-        let this = self.create_token_stream();
-        let other = other.create_token_stream();
+        let this = self.to_attr_token_stream();
+        let other = other.to_attr_token_stream();
         SpanlessEq::eq(&this, &other)
     }
 }
@@ -735,26 +752,26 @@ impl SpanlessEq for LazyTokenStream {
 impl SpanlessEq for AttrKind {
     fn eq(&self, other: &Self) -> bool {
         match (self, other) {
-            (AttrKind::Normal(item, tokens), AttrKind::Normal(item2, tokens2)) => {
-                SpanlessEq::eq(item, item2) && SpanlessEq::eq(tokens, tokens2)
+            (AttrKind::Normal(normal), AttrKind::Normal(normal2)) => {
+                SpanlessEq::eq(normal, normal2)
             }
             (AttrKind::DocComment(kind, symbol), AttrKind::DocComment(kind2, symbol2)) => {
                 SpanlessEq::eq(kind, kind2) && SpanlessEq::eq(symbol, symbol2)
             }
-            (AttrKind::DocComment(kind, unescaped), AttrKind::Normal(item2, _tokens)) => {
+            (AttrKind::DocComment(kind, unescaped), AttrKind::Normal(normal2)) => {
                 match kind {
                     CommentKind::Line | CommentKind::Block => {}
                 }
                 let path = Path::from_ident(Ident::with_dummy_span(sym::doc));
-                SpanlessEq::eq(&path, &item2.path)
-                    && match &item2.args {
+                SpanlessEq::eq(&path, &normal2.item.path)
+                    && match &normal2.item.args {
                         MacArgs::Empty | MacArgs::Delimited(..) => false,
                         MacArgs::Eq(_span, token) => {
                             is_escaped_literal_macro_arg(token, *unescaped)
                         }
                     }
             }
-            (AttrKind::Normal(..), AttrKind::DocComment(..)) => SpanlessEq::eq(other, self),
+            (AttrKind::Normal(_), AttrKind::DocComment(..)) => SpanlessEq::eq(other, self),
         }
     }
 }
diff --git a/vendor/syn/tests/debug/gen.rs b/vendor/syn/tests/debug/gen.rs
index a49ee6c92..cfd63d117 100644
--- a/vendor/syn/tests/debug/gen.rs
+++ b/vendor/syn/tests/debug/gen.rs
@@ -2215,22 +2215,22 @@ impl Debug for Lite<syn::GenericArgument> {
                 formatter.write_str(")")?;
                 Ok(())
             }
-            syn::GenericArgument::Binding(_val) => {
-                formatter.write_str("Binding")?;
+            syn::GenericArgument::Const(_val) => {
+                formatter.write_str("Const")?;
                 formatter.write_str("(")?;
                 Debug::fmt(Lite(_val), formatter)?;
                 formatter.write_str(")")?;
                 Ok(())
             }
-            syn::GenericArgument::Constraint(_val) => {
-                formatter.write_str("Constraint")?;
+            syn::GenericArgument::Binding(_val) => {
+                formatter.write_str("Binding")?;
                 formatter.write_str("(")?;
                 Debug::fmt(Lite(_val), formatter)?;
                 formatter.write_str(")")?;
                 Ok(())
             }
-            syn::GenericArgument::Const(_val) => {
-                formatter.write_str("Const")?;
+            syn::GenericArgument::Constraint(_val) => {
+                formatter.write_str("Constraint")?;
                 formatter.write_str("(")?;
                 Debug::fmt(Lite(_val), formatter)?;
                 formatter.write_str(")")?;
diff --git a/vendor/syn/tests/regression/issue1108.rs b/vendor/syn/tests/regression/issue1108.rs
index 11a82adaa..4fd30c0c7 100644
--- a/vendor/syn/tests/regression/issue1108.rs
+++ b/vendor/syn/tests/regression/issue1108.rs
@@ -1,5 +1,5 @@
 #[test]
 fn issue1108() {
     let data = "impl<x<>>::x for";
-    let _ = syn::parse_file(data);
+    _ = syn::parse_file(data);
 }
diff --git a/vendor/syn/tests/repo/mod.rs b/vendor/syn/tests/repo/mod.rs
index 0bafe6714..4c7be853b 100644
--- a/vendor/syn/tests/repo/mod.rs
+++ b/vendor/syn/tests/repo/mod.rs
@@ -10,10 +10,10 @@ use std::path::Path;
 use tar::Archive;
 use walkdir::DirEntry;
 
-const REVISION: &str = "ee160f2f5e73b6f5954bc33f059c316d9e8582c4";
+const REVISION: &str = "98ad6a5519651af36e246c0335c964dd52c554ba";
 
 #[rustfmt::skip]
-static EXCLUDE: &[&str] = &[
+static EXCLUDE_FILES: &[&str] = &[
     // TODO: impl ~const T {}
     // https://github.com/dtolnay/syn/issues/1051
     "src/test/ui/rfc-2632-const-trait-impl/syntax.rs",
@@ -33,6 +33,21 @@ static EXCLUDE: &[&str] = &[
     "src/tools/rustfmt/tests/source/trait.rs",
     "src/tools/rustfmt/tests/target/trait.rs",
 
+    // Various extensions to Rust syntax made up by rust-analyzer
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0012_type_item_where_clause.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0040_crate_keyword_vis.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0131_existential_type.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0179_use_tree_abs_star.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/0188_const_param_default_path.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0015_use_tree.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0029_range_forms.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0051_parameter_attrs.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0055_dot_dot_dot.rs",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0068_item_modifiers.rs",
+    "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0031_block_inner_attrs.rs",
+    "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0045_ambiguous_trait_object.rs",
+    "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0046_mutable_const_item.rs",
+
     // Placeholder syntax for "throw expressions"
     "src/test/pretty/yeet-expr.rs",
     "src/test/ui/try-trait/yeet-for-option.rs",
@@ -41,7 +56,9 @@ static EXCLUDE: &[&str] = &[
     // Excessive nesting
     "src/test/ui/issues/issue-74564-if-expr-stack-overflow.rs",
 
-    // Testing rustfmt on invalid syntax
+    // Testing tools on invalid syntax
+    "src/test/run-make/translation/test.rs",
+    "src/test/ui/generics/issue-94432-garbage-ice.rs",
     "src/tools/rustfmt/tests/coverage/target/comments.rs",
     "src/tools/rustfmt/tests/parser/issue-4126/invalid.rs",
     "src/tools/rustfmt/tests/parser/issue_4418.rs",
@@ -54,8 +71,8 @@ static EXCLUDE: &[&str] = &[
     "src/tools/rustfmt/tests/target/configs/spaces_around_ranges/true.rs",
     "src/tools/rustfmt/tests/target/type.rs",
 
-    // Testing compiler diagnostic localization on invalid syntax
-    "src/test/run-make/translation/basic-translation.rs",
+    // Generated file containing a top-level expression, used with `include!`
+    "compiler/rustc_codegen_gcc/src/intrinsic/archs.rs",
 
     // Clippy lint lists represented as expressions
     "src/tools/clippy/clippy_lints/src/lib.deprecated.rs",
@@ -73,9 +90,6 @@ static EXCLUDE: &[&str] = &[
     "src/tools/clippy/clippy_lints/src/lib.register_suspicious.rs",
 
     // Not actually test cases
-    "src/test/rustdoc-ui/test-compile-fail2.rs",
-    "src/test/rustdoc-ui/test-compile-fail3.rs",
-    "src/test/ui/json-bom-plus-crlf-multifile-aux.rs",
     "src/test/ui/lint/expansion-time-include.rs",
     "src/test/ui/macros/auxiliary/macro-comma-support.rs",
     "src/test/ui/macros/auxiliary/macro-include-items-expr.rs",
@@ -84,38 +98,52 @@ static EXCLUDE: &[&str] = &[
     "src/test/ui/parser/issues/auxiliary/issue-21146-inc.rs",
 ];
 
+#[rustfmt::skip]
+static EXCLUDE_DIRS: &[&str] = &[
+    // Inputs that intentionally do not parse
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/err",
+    "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err",
+
+    // Inputs that lex but do not necessarily parse
+    "src/tools/rust-analyzer/crates/parser/test_data/lexer",
+
+    // Inputs that used to crash rust-analyzer, but aren't necessarily supposed to parse
+    "src/tools/rust-analyzer/crates/syntax/test_data/parser/fuzz-failures",
+    "src/tools/rust-analyzer/crates/syntax/test_data/reparse/fuzz-failures",
+];
+
 pub fn base_dir_filter(entry: &DirEntry) -> bool {
     let path = entry.path();
-    if path.is_dir() {
-        return true; // otherwise walkdir does not visit the files
-    }
-    if path.extension().map_or(true, |e| e != "rs") {
-        return false;
-    }
 
     let mut path_string = path.to_string_lossy();
     if cfg!(windows) {
         path_string = path_string.replace('\\', "/").into();
     }
-    let path = if let Some(path) = path_string.strip_prefix("tests/rust/") {
+    let path_string = if path_string == "tests/rust" {
+        return true;
+    } else if let Some(path) = path_string.strip_prefix("tests/rust/") {
         path
     } else {
         panic!("unexpected path in Rust dist: {}", path_string);
     };
 
-    if path.starts_with("src/test/compile-fail") || path.starts_with("src/test/rustfix") {
+    if path.is_dir() {
+        return !EXCLUDE_DIRS.contains(&path_string);
+    }
+
+    if path.extension().map_or(true, |e| e != "rs") {
         return false;
     }
 
-    if path.starts_with("src/test/ui") {
-        let stderr_path = entry.path().with_extension("stderr");
+    if path_string.starts_with("src/test/ui") || path_string.starts_with("src/test/rustdoc-ui") {
+        let stderr_path = path.with_extension("stderr");
         if stderr_path.exists() {
             // Expected to fail in some way
             return false;
         }
     }
 
-    !EXCLUDE.contains(&path)
+    !EXCLUDE_FILES.contains(&path_string)
 }
 
 #[allow(dead_code)]
@@ -137,10 +165,17 @@ pub fn clone_rust() {
     }
     let mut missing = String::new();
     let test_src = Path::new("tests/rust");
-    for exclude in EXCLUDE {
-        if !test_src.join(exclude).exists() {
+    for exclude in EXCLUDE_FILES {
+        if !test_src.join(exclude).is_file() {
+            missing += "\ntests/rust/";
+            missing += exclude;
+        }
+    }
+    for exclude in EXCLUDE_DIRS {
+        if !test_src.join(exclude).is_dir() {
             missing += "\ntests/rust/";
             missing += exclude;
+            missing += "/";
         }
     }
     if !missing.is_empty() {
diff --git a/vendor/syn/tests/test_derive_input.rs b/vendor/syn/tests/test_derive_input.rs
index 93634e577..1eff01186 100644
--- a/vendor/syn/tests/test_derive_input.rs
+++ b/vendor/syn/tests/test_derive_input.rs
@@ -1,4 +1,4 @@
-#![allow(clippy::too_many_lines)]
+#![allow(clippy::assertions_on_result_states, clippy::too_many_lines)]
 
 #[macro_use]
 mod macros;
diff --git a/vendor/syn/tests/test_parse_stream.rs b/vendor/syn/tests/test_parse_stream.rs
index 76bd06577..cc14fa032 100644
--- a/vendor/syn/tests/test_parse_stream.rs
+++ b/vendor/syn/tests/test_parse_stream.rs
@@ -4,9 +4,9 @@ use syn::{Ident, Token};
 
 #[test]
 fn test_peek() {
-    let _ = |input: ParseStream| {
-        let _ = input.peek(Ident);
-        let _ = input.peek(Ident::peek_any);
-        let _ = input.peek(Token![::]);
+    _ = |input: ParseStream| {
+        _ = input.peek(Ident);
+        _ = input.peek(Ident::peek_any);
+        _ = input.peek(Token![::]);
     };
 }
diff --git a/vendor/syn/tests/test_precedence.rs b/vendor/syn/tests/test_precedence.rs
index bd273a565..dbcd74f16 100644
--- a/vendor/syn/tests/test_precedence.rs
+++ b/vendor/syn/tests/test_precedence.rs
@@ -24,6 +24,7 @@
 extern crate rustc_ast;
 extern crate rustc_data_structures;
 extern crate rustc_span;
+extern crate thin_vec;
 
 use crate::common::eq::SpanlessEq;
 use crate::common::parse;
@@ -207,10 +208,10 @@ fn librustc_brackets(mut librustc_expr: P<ast::Expr>) -> Option<P<ast::Expr>> {
     };
     use rustc_ast::mut_visit::{noop_visit_generic_arg, noop_visit_local, MutVisitor};
     use rustc_data_structures::map_in_place::MapInPlace;
-    use rustc_data_structures::thin_vec::ThinVec;
     use rustc_span::DUMMY_SP;
     use std::mem;
     use std::ops::DerefMut;
+    use thin_vec::ThinVec;
 
     struct BracketsVisitor {
         failed: bool,
@@ -243,7 +244,7 @@ fn librustc_brackets(mut librustc_expr: P<ast::Expr>) -> Option<P<ast::Expr>> {
     }
 
     fn noop_visit_expr<T: MutVisitor>(e: &mut Expr, vis: &mut T) {
-        use rustc_ast::mut_visit::{noop_visit_expr, visit_thin_attrs};
+        use rustc_ast::mut_visit::{noop_visit_expr, visit_attrs};
         match &mut e.kind {
             ExprKind::AddrOf(BorrowKind::Raw, ..) => {}
             ExprKind::Struct(expr) => {
@@ -261,7 +262,7 @@ fn librustc_brackets(mut librustc_expr: P<ast::Expr>) -> Option<P<ast::Expr>> {
                 }
                 vis.visit_id(&mut e.id);
                 vis.visit_span(&mut e.span);
-                visit_thin_attrs(&mut e.attrs, vis);
+                visit_attrs(&mut e.attrs, vis);
             }
             _ => noop_visit_expr(e, vis),
         }
@@ -322,15 +323,15 @@ fn librustc_brackets(mut librustc_expr: P<ast::Expr>) -> Option<P<ast::Expr>> {
         // types yet. We'll look into comparing those in the future. For now
         // focus on expressions appearing in other places.
         fn visit_pat(&mut self, pat: &mut P<Pat>) {
-            let _ = pat;
+            _ = pat;
         }
 
         fn visit_ty(&mut self, ty: &mut P<Ty>) {
-            let _ = ty;
+            _ = ty;
         }
 
         fn visit_attribute(&mut self, attr: &mut Attribute) {
-            let _ = attr;
+            _ = attr;
         }
     }
 
@@ -426,7 +427,7 @@ fn syn_brackets(syn_expr: syn::Expr) -> syn::Expr {
 fn collect_exprs(file: syn::File) -> Vec<syn::Expr> {
     use syn::fold::Fold;
     use syn::punctuated::Punctuated;
-    use syn::{token, Expr, ExprTuple, Path};
+    use syn::{token, ConstParam, Expr, ExprTuple, Path};
 
     struct CollectExprs(Vec<Expr>);
     impl Fold for CollectExprs {
@@ -447,6 +448,10 @@ fn collect_exprs(file: syn::File) -> Vec<syn::Expr> {
             // Skip traversing into const generic path arguments
             path
         }
+
+        fn fold_const_param(&mut self, const_param: ConstParam) -> ConstParam {
+            const_param
+        }
     }
 
     let mut folder = CollectExprs(vec![]);
diff --git a/vendor/syn/tests/test_size.rs b/vendor/syn/tests/test_size.rs
index e172df2bc..02b0700f0 100644
--- a/vendor/syn/tests/test_size.rs
+++ b/vendor/syn/tests/test_size.rs
@@ -5,17 +5,17 @@ use syn::{Expr, Item, Lit, Pat, Type};
 
 #[test]
 fn test_expr_size() {
-    assert_eq!(mem::size_of::<Expr>(), 280);
+    assert_eq!(mem::size_of::<Expr>(), 264);
 }
 
 #[test]
 fn test_item_size() {
-    assert_eq!(mem::size_of::<Item>(), 344);
+    assert_eq!(mem::size_of::<Item>(), 320);
 }
 
 #[test]
 fn test_type_size() {
-    assert_eq!(mem::size_of::<Type>(), 304);
+    assert_eq!(mem::size_of::<Type>(), 280);
 }
 
 #[test]
@@ -25,5 +25,5 @@ fn test_pat_size() {
 
 #[test]
 fn test_lit_size() {
-    assert_eq!(mem::size_of::<Lit>(), 40);
+    assert_eq!(mem::size_of::<Lit>(), 32);
 }
diff --git a/vendor/syn/tests/test_stmt.rs b/vendor/syn/tests/test_stmt.rs
index 0bca62b04..f444e5b49 100644
--- a/vendor/syn/tests/test_stmt.rs
+++ b/vendor/syn/tests/test_stmt.rs
@@ -1,4 +1,4 @@
-#![allow(clippy::non_ascii_literal)]
+#![allow(clippy::assertions_on_result_states, clippy::non_ascii_literal)]
 
 #[macro_use]
 mod macros;