New upstream version 1.67.1+dfsg1

[rustc.git] / compiler / rustc_builtin_macros / src / deriving / default.rs

diff --git a/compiler/rustc_builtin_macros/src/deriving/default.rs b/compiler/rustc_builtin_macros/src/deriving/default.rs
index 17df9fb279ad6b808e57840c5d417e1639d8a144..eb66c4a69a69bc25bab4126e1649d5f3097a940f 100644 (file)
--- a/compiler/rustc_builtin_macros/src/deriving/default.rs
+++ b/compiler/rustc_builtin_macros/src/deriving/default.rs
@@ -16,17 +16,16 @@ pub fn expand_deriving_default(
     mitem: &ast::MetaItem,
     item: &Annotatable,
     push: &mut dyn FnMut(Annotatable),
+    is_const: bool,
 ) {
     item.visit_with(&mut DetectNonVariantDefaultAttr { cx });
 
-    let inline = cx.meta_word(span, sym::inline);
-    let attrs = thin_vec![cx.attribute(inline)];
+    let attrs = thin_vec![cx.attr_word(sym::inline, span)];
     let trait_def = TraitDef {
         span,
         path: Path::new(vec![kw::Default, sym::Default]),
         skip_path_as_bound: has_a_default_variant(item),
         additional_bounds: Vec::new(),
-        generics: Bounds::empty(),
         supports_unions: false,
         methods: vec![MethodDef {
             name: kw::Default,
@@ -47,6 +46,7 @@ pub fn expand_deriving_default(
             })),
         }],
         associated_types: Vec::new(),
+        is_const,
     };
     trait_def.expand(cx, mitem, item, push)
 }
@@ -62,15 +62,12 @@ fn default_struct_substructure(
     let default_call = |span| cx.expr_call_global(span, default_ident.clone(), Vec::new());
 
     let expr = match summary {
-        Unnamed(ref fields, is_tuple) => {
-            if !is_tuple {
-                cx.expr_ident(trait_span, substr.type_ident)
-            } else {
-                let exprs = fields.iter().map(|sp| default_call(*sp)).collect();
-                cx.expr_call_ident(trait_span, substr.type_ident, exprs)
-            }
+        Unnamed(_, false) => cx.expr_ident(trait_span, substr.type_ident),
+        Unnamed(fields, true) => {
+            let exprs = fields.iter().map(|sp| default_call(*sp)).collect();
+            cx.expr_call_ident(trait_span, substr.type_ident, exprs)
         }
-        Named(ref fields) => {
+        Named(fields) => {
             let default_fields = fields
                 .iter()
                 .map(|&(ident, span)| cx.field_imm(span, ident, default_call(span)))
@@ -145,7 +142,7 @@ fn extract_default_variant<'a>(
                 let suggestion = default_variants
                     .iter()
                     .filter_map(|v| {
-                        if v.ident == variant.ident {
+                        if v.span == variant.span {
                             None
                         } else {
                             Some((cx.sess.find_by_name(&v.attrs, kw::Default)?.span, String::new()))