Auto merge of rust-lang#137610 - Kobzol:revert-135726, r=<try>

Revert "Auto merge of rust-lang#135726 - jdonszelmann:attr-parsing, r=oli-obk"

Trying to revert rust-lang#135726 and do some perf. runs on it.

r? `@ghost`

Author: bors

compiler/rustc_ast_lowering/src/expr.rs

@@ -77,8 +77,9 @@ impl<'hir> LoweringContext<'_, 'hir> {
                         self.attrs.insert(
                             ex.hir_id.local_id,
                             &*self.arena.alloc_from_iter(
-                                self.lower_attrs_vec(&e.attrs, e.span)
-                                    .into_iter()
+                                e.attrs
+                                    .iter()
+                                    .map(|a| self.lower_attr(a))
                                     .chain(old_attrs.iter().cloned()),
                             ),
                         );
@@ -97,7 +98,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
             }
 
             let expr_hir_id = self.lower_node_id(e.id);
-            self.lower_attrs(expr_hir_id, &e.attrs, e.span);
+            self.lower_attrs(expr_hir_id, &e.attrs);
 
             let kind = match &e.kind {
                 ExprKind::Array(exprs) => hir::ExprKind::Array(self.lower_exprs(exprs)),
@@ -669,7 +670,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         let guard = arm.guard.as_ref().map(|cond| self.lower_expr(cond));
         let hir_id = self.next_id();
         let span = self.lower_span(arm.span);
-        self.lower_attrs(hir_id, &arm.attrs, arm.span);
+        self.lower_attrs(hir_id, &arm.attrs);
         let is_never_pattern = pat.is_never_pattern();
         let body = if let Some(body) = &arm.body
             && !is_never_pattern
@@ -838,7 +839,6 @@ impl<'hir> LoweringContext<'_, 'hir> {
                     style: AttrStyle::Outer,
                     span: unstable_span,
                 }],
-                span,
             );
         }
     }
@@ -1673,7 +1673,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
 
     fn lower_expr_field(&mut self, f: &ExprField) -> hir::ExprField<'hir> {
         let hir_id = self.lower_node_id(f.id);
-        self.lower_attrs(hir_id, &f.attrs, f.span);
+        self.lower_attrs(hir_id, &f.attrs);
         hir::ExprField {
             hir_id,
             ident: self.lower_ident(f.ident),
@@ -1936,7 +1936,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         //
         // Also, add the attributes to the outer returned expr node.
         let expr = self.expr_drop_temps_mut(for_span, match_expr);
-        self.lower_attrs(expr.hir_id, &e.attrs, e.span);
+        self.lower_attrs(expr.hir_id, &e.attrs);
         expr
     }
 
@@ -1993,7 +1993,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
             let val_ident = Ident::with_dummy_span(sym::val);
             let (val_pat, val_pat_nid) = self.pat_ident(span, val_ident);
             let val_expr = self.expr_ident(span, val_ident, val_pat_nid);
-            self.lower_attrs(val_expr.hir_id, &attrs, span);
+            self.lower_attrs(val_expr.hir_id, &attrs);
             let continue_pat = self.pat_cf_continue(unstable_span, val_pat);
             self.arm(continue_pat, val_expr)
         };
@@ -2024,7 +2024,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 let ret_expr = self.checked_return(Some(from_residual_expr));
                 self.arena.alloc(self.expr(try_span, ret_expr))
             };
-            self.lower_attrs(ret_expr.hir_id, &attrs, ret_expr.span);
+            self.lower_attrs(ret_expr.hir_id, &attrs);
 
             let break_pat = self.pat_cf_break(try_span, residual_local);
             self.arm(break_pat, ret_expr)

compiler/rustc_ast_lowering/src/item.rs

@@ -11,7 +11,7 @@ use rustc_index::{IndexSlice, IndexVec};
 use rustc_middle::span_bug;
 use rustc_middle::ty::{ResolverAstLowering, TyCtxt};
 use rustc_span::edit_distance::find_best_match_for_name;
-use rustc_span::{DUMMY_SP, DesugaringKind, Ident, Span, Symbol, kw, sym};
+use rustc_span::{DesugaringKind, Ident, Span, Symbol, kw, sym};
 use smallvec::{SmallVec, smallvec};
 use thin_vec::ThinVec;
 use tracing::instrument;
@@ -93,8 +93,7 @@ impl<'a, 'hir> ItemLowerer<'a, 'hir> {
         debug_assert_eq!(self.resolver.node_id_to_def_id[&CRATE_NODE_ID], CRATE_DEF_ID);
         self.with_lctx(CRATE_NODE_ID, |lctx| {
             let module = lctx.lower_mod(&c.items, &c.spans);
-            // FIXME(jdonszelman): is dummy span ever a problem here?
-            lctx.lower_attrs(hir::CRATE_HIR_ID, &c.attrs, DUMMY_SP);
+            lctx.lower_attrs(hir::CRATE_HIR_ID, &c.attrs);
             hir::OwnerNode::Crate(module)
         })
     }
@@ -158,7 +157,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         let mut ident = i.ident;
         let vis_span = self.lower_span(i.vis.span);
         let hir_id = hir::HirId::make_owner(self.current_hir_id_owner.def_id);
-        let attrs = self.lower_attrs(hir_id, &i.attrs, i.span);
+        let attrs = self.lower_attrs(hir_id, &i.attrs);
         let kind = self.lower_item_kind(i.span, i.id, hir_id, &mut ident, attrs, vis_span, &i.kind);
         let item = hir::Item {
             owner_id: hir_id.expect_owner(),
@@ -621,7 +620,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
     fn lower_foreign_item(&mut self, i: &ForeignItem) -> &'hir hir::ForeignItem<'hir> {
         let hir_id = hir::HirId::make_owner(self.current_hir_id_owner.def_id);
         let owner_id = hir_id.expect_owner();
-        let attrs = self.lower_attrs(hir_id, &i.attrs, i.span);
+        let attrs = self.lower_attrs(hir_id, &i.attrs);
         let item = hir::ForeignItem {
             owner_id,
             ident: self.lower_ident(i.ident),
@@ -679,7 +678,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
 
     fn lower_variant(&mut self, v: &Variant) -> hir::Variant<'hir> {
         let hir_id = self.lower_node_id(v.id);
-        self.lower_attrs(hir_id, &v.attrs, v.span);
+        self.lower_attrs(hir_id, &v.attrs);
         hir::Variant {
             hir_id,
             def_id: self.local_def_id(v.id),
@@ -741,7 +740,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
     ) -> hir::FieldDef<'hir> {
         let ty = self.lower_ty(&f.ty, ImplTraitContext::Disallowed(ImplTraitPosition::FieldTy));
         let hir_id = self.lower_node_id(f.id);
-        self.lower_attrs(hir_id, &f.attrs, f.span);
+        self.lower_attrs(hir_id, &f.attrs);
         hir::FieldDef {
             span: self.lower_span(f.span),
             hir_id,
@@ -760,7 +759,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
 
     fn lower_trait_item(&mut self, i: &AssocItem) -> &'hir hir::TraitItem<'hir> {
         let hir_id = hir::HirId::make_owner(self.current_hir_id_owner.def_id);
-        let attrs = self.lower_attrs(hir_id, &i.attrs, i.span);
+        let attrs = self.lower_attrs(hir_id, &i.attrs);
         let trait_item_def_id = hir_id.expect_owner();
 
         let (generics, kind, has_default) = match &i.kind {
@@ -896,7 +895,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         let has_value = true;
         let (defaultness, _) = self.lower_defaultness(i.kind.defaultness(), has_value);
         let hir_id = hir::HirId::make_owner(self.current_hir_id_owner.def_id);
-        let attrs = self.lower_attrs(hir_id, &i.attrs, i.span);
+        let attrs = self.lower_attrs(hir_id, &i.attrs);
 
         let (generics, kind) = match &i.kind {
             AssocItemKind::Const(box ConstItem { generics, ty, expr, .. }) => self.lower_generics(
@@ -1057,7 +1056,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
 
     fn lower_param(&mut self, param: &Param) -> hir::Param<'hir> {
         let hir_id = self.lower_node_id(param.id);
-        self.lower_attrs(hir_id, &param.attrs, param.span);
+        self.lower_attrs(hir_id, &param.attrs);
         hir::Param {
             hir_id,
             pat: self.lower_pat(&param.pat),