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-rw-r--r--compiler/rustc_ast/src/ast.rs12
-rw-r--r--compiler/rustc_builtin_macros/src/deriving/clone.rs2
-rw-r--r--compiler/rustc_builtin_macros/src/test.rs4
-rw-r--r--compiler/rustc_expand/src/build.rs4
-rw-r--r--compiler/rustc_expand/src/config.rs3
-rw-r--r--compiler/rustc_expand/src/module.rs4
-rw-r--r--compiler/rustc_parse/src/parser/expr.rs4
-rw-r--r--compiler/rustc_parse/src/parser/item.rs4
8 files changed, 19 insertions, 18 deletions
diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs
index de6a0b563eb..03c375c4666 100644
--- a/compiler/rustc_ast/src/ast.rs
+++ b/compiler/rustc_ast/src/ast.rs
@@ -471,7 +471,7 @@ pub struct WhereEqPredicate {
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub struct Crate {
     pub attrs: AttrVec,
-    pub items: Vec<P<Item>>,
+    pub items: ThinVec<P<Item>>,
     pub spans: ModSpans,
     /// Must be equal to `CRATE_NODE_ID` after the crate root is expanded, but may hold
     /// expansion placeholders or an unassigned value (`DUMMY_NODE_ID`) before that.
@@ -1357,7 +1357,7 @@ pub enum StructRest {
 pub struct StructExpr {
     pub qself: Option<P<QSelf>>,
     pub path: Path,
-    pub fields: Vec<ExprField>,
+    pub fields: ThinVec<ExprField>,
     pub rest: StructRest,
 }
 
@@ -2475,7 +2475,7 @@ pub enum ModKind {
     /// or with definition outlined to a separate file `mod foo;` and already loaded from it.
     /// The inner span is from the first token past `{` to the last token until `}`,
     /// or from the first to the last token in the loaded file.
-    Loaded(Vec<P<Item>>, Inline, ModSpans),
+    Loaded(ThinVec<P<Item>>, Inline, ModSpans),
     /// Module with definition outlined to a separate file `mod foo;` but not yet loaded from it.
     Unloaded,
 }
@@ -2502,7 +2502,7 @@ pub struct ForeignMod {
 
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub struct EnumDef {
-    pub variants: Vec<Variant>,
+    pub variants: ThinVec<Variant>,
 }
 /// Enum variant.
 #[derive(Clone, Encodable, Decodable, Debug)]
@@ -3122,8 +3122,8 @@ mod size_asserts {
     static_assert_size!(GenericBound, 56);
     static_assert_size!(Generics, 40);
     static_assert_size!(Impl, 136);
-    static_assert_size!(Item, 144);
-    static_assert_size!(ItemKind, 72);
+    static_assert_size!(Item, 136);
+    static_assert_size!(ItemKind, 64);
     static_assert_size!(LitKind, 24);
     static_assert_size!(Local, 72);
     static_assert_size!(MetaItemLit, 40);
diff --git a/compiler/rustc_builtin_macros/src/deriving/clone.rs b/compiler/rustc_builtin_macros/src/deriving/clone.rs
index 3c1abe02036..dfee2d3ce77 100644
--- a/compiler/rustc_builtin_macros/src/deriving/clone.rs
+++ b/compiler/rustc_builtin_macros/src/deriving/clone.rs
@@ -200,7 +200,7 @@ fn cs_clone(
                     let call = subcall(cx, field);
                     cx.field_imm(field.span, ident, call)
                 })
-                .collect::<Vec<_>>();
+                .collect::<ThinVec<_>>();
 
             cx.expr_struct(trait_span, ctor_path, fields)
         }
diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs
index 608d8c96668..e02c7e6c01b 100644
--- a/compiler/rustc_builtin_macros/src/test.rs
+++ b/compiler/rustc_builtin_macros/src/test.rs
@@ -249,14 +249,14 @@ pub fn expand_test_or_bench(
                 cx.expr_struct(
                     sp,
                     test_path("TestDescAndFn"),
-                    vec![
+                    thin_vec![
                         // desc: test::TestDesc {
                         field(
                             "desc",
                             cx.expr_struct(
                                 sp,
                                 test_path("TestDesc"),
-                                vec![
+                                thin_vec![
                                     // name: "path::to::test"
                                     field(
                                         "name",
diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs
index eaecce91b8a..8a78c3296f9 100644
--- a/compiler/rustc_expand/src/build.rs
+++ b/compiler/rustc_expand/src/build.rs
@@ -323,7 +323,7 @@ impl<'a> ExtCtxt<'a> {
         &self,
         span: Span,
         path: ast::Path,
-        fields: Vec<ast::ExprField>,
+        fields: ThinVec<ast::ExprField>,
     ) -> P<ast::Expr> {
         self.expr(
             span,
@@ -339,7 +339,7 @@ impl<'a> ExtCtxt<'a> {
         &self,
         span: Span,
         id: Ident,
-        fields: Vec<ast::ExprField>,
+        fields: ThinVec<ast::ExprField>,
     ) -> P<ast::Expr> {
         self.expr_struct(span, self.path_ident(span, id), fields)
     }
diff --git a/compiler/rustc_expand/src/config.rs b/compiler/rustc_expand/src/config.rs
index 5c845ae6d0b..01500c2c77c 100644
--- a/compiler/rustc_expand/src/config.rs
+++ b/compiler/rustc_expand/src/config.rs
@@ -24,6 +24,7 @@ use rustc_session::Session;
 use rustc_span::edition::{Edition, ALL_EDITIONS};
 use rustc_span::symbol::{sym, Symbol};
 use rustc_span::{Span, DUMMY_SP};
+use thin_vec::ThinVec;
 
 /// A folder that strips out items that do not belong in the current configuration.
 pub struct StripUnconfigured<'a> {
@@ -206,7 +207,7 @@ pub fn features(
         None => {
             // The entire crate is unconfigured.
             krate.attrs = ast::AttrVec::new();
-            krate.items = Vec::new();
+            krate.items = ThinVec::new();
             Features::default()
         }
         Some(attrs) => {
diff --git a/compiler/rustc_expand/src/module.rs b/compiler/rustc_expand/src/module.rs
index 07f47a9c3a4..3779af19e12 100644
--- a/compiler/rustc_expand/src/module.rs
+++ b/compiler/rustc_expand/src/module.rs
@@ -12,8 +12,8 @@ use rustc_session::Session;
 use rustc_span::symbol::{sym, Ident};
 use rustc_span::Span;
 use std::iter::once;
-
 use std::path::{self, Path, PathBuf};
+use thin_vec::ThinVec;
 
 #[derive(Copy, Clone)]
 pub enum DirOwnership {
@@ -31,7 +31,7 @@ pub struct ModulePathSuccess {
 }
 
 pub(crate) struct ParsedExternalMod {
-    pub items: Vec<P<Item>>,
+    pub items: ThinVec<P<Item>>,
     pub spans: ModSpans,
     pub file_path: PathBuf,
     pub dir_path: PathBuf,
diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index c92379754bf..12f65a436e3 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -2935,8 +2935,8 @@ impl<'a> Parser<'a> {
         pth: ast::Path,
         recover: bool,
         close_delim: Delimiter,
-    ) -> PResult<'a, (Vec<ExprField>, ast::StructRest, bool)> {
-        let mut fields = Vec::new();
+    ) -> PResult<'a, (ThinVec<ExprField>, ast::StructRest, bool)> {
+        let mut fields = ThinVec::new();
         let mut base = ast::StructRest::None;
         let mut recover_async = false;
 
diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs
index 4e338f52f57..c0aed6a3789 100644
--- a/compiler/rustc_parse/src/parser/item.rs
+++ b/compiler/rustc_parse/src/parser/item.rs
@@ -56,12 +56,12 @@ impl<'a> Parser<'a> {
     pub fn parse_mod(
         &mut self,
         term: &TokenKind,
-    ) -> PResult<'a, (AttrVec, Vec<P<Item>>, ModSpans)> {
+    ) -> PResult<'a, (AttrVec, ThinVec<P<Item>>, ModSpans)> {
         let lo = self.token.span;
         let attrs = self.parse_inner_attributes()?;
 
         let post_attr_lo = self.token.span;
-        let mut items = vec![];
+        let mut items = ThinVec::new();
         while let Some(item) = self.parse_item(ForceCollect::No)? {
             items.push(item);
             self.maybe_consume_incorrect_semicolon(&items);
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-01-15 04:51:17 +0000